CN101875511B - Strip-type funneling solid-liquid separator and gas lifting pulsation push flowing oxidation ditch thereof - Google Patents
Strip-type funneling solid-liquid separator and gas lifting pulsation push flowing oxidation ditch thereof Download PDFInfo
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- CN101875511B CN101875511B CN2010101501358A CN201010150135A CN101875511B CN 101875511 B CN101875511 B CN 101875511B CN 2010101501358 A CN2010101501358 A CN 2010101501358A CN 201010150135 A CN201010150135 A CN 201010150135A CN 101875511 B CN101875511 B CN 101875511B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The invention relates to a strip-type funneling solid-liquid separator and a gas lifting pulsation push flowing stereo circulating oxidation ditch thereof; a mud settling replacement component of the strip-type funneling solid-liquid separator is that: a plurality of strip-type funnels connected in parallel are vertically fixed on a front end wall and a rear end wall to form a strip-type funnel set, and the strip-type funnel is formed by that bottom edges of the two strip-type plates are inclined outwards systematically at interval and the end parts thereof are closed on the front end wall and the rear end wall; the gas lifting pulsation push flowing stereo circulating oxidation ditch adopts a strip-type funneling solid-liquid separator, a fine bubble aerator group comprises continuous and intermittent air supplying fine bubble aerator groups; a transition anoxic zone is arranged at the front end of the oxidation ditch, and a solid-liquid separation area is arranged between an aerobic zone and the transition anoxic zone; the strip-type funneling solid-liquid separator has the advantages of achieving the purposes of further saving enrgy, reducing occupied area, reducing equipment volume, simplifying operation, reducing building and operation cost on the premise of ensuring good solid-liquid separation effect and good water-discharging quality.
Description
Technical field
The present invention relates to dirt, waste water disposal facility, relate in particular to the funneling solid-liquid separator of a kind of bar shaped and use the gas lifting pulsation push flowing tridimensional circulating oxidation ditch of this solid-liquid separator.
Background technology
Oxidation ditch is the extended aeration activated sludge process water technology with mixing fully and whole plug-flow hydromechanics feature, and dirt, waste water and active sludge mix in sealing ditch shape passage and circulate.Because the hydraulic characteristic of " closed circulation flows " of its uniqueness and the characteristics of longer mud age and low organic loading, it is good to make it become effluent quality, strong shock resistance, stable, flow process is simple, be convenient to safeguard that the mud discharge capacity is low also can directly dewater and one-time construction investment and the lower water technology of working cost, is widely used in municipal effluent and Industrial Wastewater Treatment.The nineties initial stage in last century, cooperating the micro-hole aerator technology with impeller under water is that the deep channel type oxidation channel of representative rises rapidly, it has inherited the characteristics of conventional oxidation ditch, and when improving oxygen-transfer efficiency, has solved the easily heavy mud of oxidation ditch bottom of trench more effectively and taken up an area of big problem.In recent years, the whole Round Sump oxidation ditch of building jointly in same structures with functional pools such as solid-liquid separator, anaerobic pond, anoxic pond and oxidation ditch tap drain is widely used again, it is with the multiple ditch type array mode reply complicated processed water water quality different with various functional pools, when removing the carbon source pollutent, effectively promoted the treatment effect of dephosphorization denitrogenation.More because whole Round Sump oxidation ditch is being cancelled second pond, effectively reduce when taking up an area of, realized that mud does not have blowback stream function, energy-saving effect is obvious.The applicant's patent ZL200820074683.5 " Zanjon type gas-lift stream-pull tridimensional circulation type inversion A
2The O integral co-construction oxidation ditch "; be intended to the gas lift impellent of utilizing aeration process to produce; when realizing the integral body of mixed solution in the oxidation ditch raceway groove promoted; make the three-dimensional circulation of mixed solution and realize aerobic and the anoxic subregion by horizontal central partition plate is set, with reach improve nitrogen removal rate, energy-conservation, reduce the equipment installed capacity and further reduce the purpose that oxidation ditch takes up an area of.
At present, oxidation Ditch Technology is still towards abundant excavation with utilize conventional oxidation ditch hydraulic characteristic, with further minimizing occupation of land and construction fund, energy-conservation, and further promote water treatment effect, especially dephosphorization and denitrification effect and reduce aspects such as the research development that running cost is the new ditch type technical study of target, energy-efficient equipment research and simple operation maintenance mode.
Still there is certain technological deficiency in existing gas lift plug-flow tridimensional circulation type integral co-construction oxidation ditch: (1) whole flow velocity is big.The whole flow velocity of existing oxidation ditch generally need be controlled in the higher flow rates of 0.2～0.3m/s, guarantees that with this active sludge all is the suspension flow state in oxidation ditch, and the adjustment of flow velocity is as the criterion with the not heavy mud of oxidation ditch bottom of trench, bend and flex point.But the high flow velocities that oxidation ditch is a condition with not heavy mud need consume certain waterpower plug-flow energy, and it is a present oxidation ditch work energy consumption major cause bigger than normal.(2) denitrification process is not thorough, and the denitrogenation dephosphorizing effect is not good enough.The aerobic zone and the oxygen-starved area dissolved oxygen variable gradient that are provided with in the existing oxidation ditch ditch are little, because flow velocity is fast, mixed solution in the oxygen-starved area, time of passing through of aerobic zone all is compressed, especially oxygen-starved area, because dissolved oxygen content is higher, make denitrification process not thorough, the denitrogenation dephosphorizing effect is desirable not to the utmost.For the less oxidation ditch of treatment scale, because the waterpower path is shorter relatively, the problem of poor denitrification and dephosphorization effect is more outstanding.(3) solid-liquid separator anti-soil mud swelling capacity is poor.The solid-liquid separator of existing oxidation ditch is a utilization laminar flow theory, adopts swash plate or inclined tube structure, and waterpower flow condition by oxidation ditch realizes solid-liquid separation.Generally speaking, when the active sludge mass ratio is better, all can obtain solid-liquid separation effect preferably, but in case the loose situation of shale appears in generation active sludge downgrade or sludge bulking, solid-liquid separator more serious mud scum phenomenon just can occur and influence effluent characteristics.In addition, existing solid-liquid separator complex structure adopts structure such as metal, plastics and component materials fragile, the maintenance cost height.(4) solid-liquid displacement zone is provided with at the aerobic zone end and near the oxidation ditch front wall in the existing oxidation ditch, owing to be in the quiescent centre of fluid diversion, is unfavorable for spoil disposal.
Summary of the invention
At the problems referred to above, main purpose of the present invention has two aspects: (1) provides a kind of bar shaped funneling solid-liquid separator; (2) provide a kind of gas lifting pulsation push flowing tridimensional circulating oxidation ditch of using the funneling solid-liquid separator of above-mentioned bar shaped.By improvement to solid-liquid separator, oxidation ditch structure and aeration mode, realize reducing the sludge bulking influence, ensure separating effect, reduce whole flow velocity, promote the denitrification effect, do not adding the plug-flow energy, prevent the heavy mud of bottom of trench and create good waterpower environment, ensure under the good effluent quality prerequisite, reach further energy-conservation, reduce to take up an area of, reduce plant capacity, simplify the operation, reduce and build and the effect of running cost.
The technical solution adopted for the present invention to solve the technical problems is:
The funneling solid-liquid separator of a kind of bar shaped, comprise the settling section of crowding around solid-liquid displacement zone that is vertically connected between the oxidation ditch both walls, the vertical headwall of disengaging zone and settling region, the heavy mud that is positioned at settling section and receives mill weir with vertical headwall plurality of parallel connected vertically and be located at the settling region is replaced assembly, it is characterized in that described vertical headwall comprises preceding headwall and back headwall in parallel, the headwall outer upper is provided with the bar shaped water leg that is vertically connected between the oxidation ditch both walls before being close to, described plurality of parallel is received mill weir and is located between preceding headwall and the back headwall, and is communicated with the water leg that is provided with water port by the corresponding receipts mill weir water outlet that is provided with on the preceding headwall; Some bar shapeds are crossed chute and are received staggered parallel setting of mill weir, and the water-in of one end for stretching out by the back headwall, the other end are headwall and the water outlet that stretches out from the water leg outer wall before passing; Before corresponding settling region described, between headwall and the back headwall described heavy mud is set and replaces assembly, this assembly is the bar shaped funnel group that is formed on preceding headwall and back headwall by the bar shaped funnel vertical fixing of a plurality of connections arranged side by side, and the bar shaped funnel is to be possessed at interval with the base and symmetrical outward-dipping setting and stripe board both ends form on headwall and the back headwall before closing at respectively by two stripe board.
The angle of two stripe board of described bar shaped funnel is 45 °～90 °, and the base is spaced apart 3cm～30cm.
Described bar shaped funnel group is fixed concrete structure or removable plates mount structure.
A kind of gas lifting pulsation push flowing tridimensional circulating oxidation ditch that adopts the above-mentioned funneling solid-liquid separator of bar shaped, comprise the oxygen-starved area, be provided with gas lift aerobic zone, aerobic zone, solid-liquid displacement zone, former water water inlet pipe, water shoot and the shore pipe of micro-hole aerator group, wherein, the middle and lower part of oxidation ditch be provided with oxidation ditch is divided into upper and lower two-layer raceway groove and front end and oxidation ditch front wall to possess distance, rear end and oxidation ditch after wall possess the horizontal baffle of distance, described aerobic zone is located at top-layer channel, and lower floor's raceway groove is located in described oxygen-starved area; It is characterized in that it is the inclination training wall of vertical headwall that described horizontal baffle rear end connects to back upper place extension and top; Described gas lift aerobic zone is located at behind inclination training wall and the oxidation ditch between the wall, described micro-hole aerator group be by in gas lift aerobic zone bottom behind the oxidation ditch wall pulsation push flowing micro-hole aerator group that constitutes of horizontally disposed continuous air feed micro-hole aerator group and intermittent gas supply micro-hole aerator group side by side; At the oxidation ditch front end transition oxygen-starved area is set, solid-liquid displacement zone is located between the aerobic zone and transition oxygen-starved area of top-layer channel, the solid-liquid separator that described solid-liquid displacement zone adopts is the funneling solid-liquid separator of bar shaped, comprise the settling section of forming solid-liquid displacement zone of crowding around that is vertically connected between the oxidation ditch both walls, the vertical preceding headwall of disengaging zone and settling region and back headwall, the headwall outer upper is provided with the water leg that is vertically connected between the oxidation ditch both walls before being close to, plurality of parallel is received mill weir and is located between preceding headwall and the back headwall, and is communicated with the water leg that is provided with water port by the corresponding receipts mill weir water outlet that is provided with on the preceding headwall; Some bar shapeds are crossed chute and are received staggered parallel setting of mill weir, and the water-in of one end for stretching out by the back headwall, the other end are headwall and the water outlet that stretches out from the water leg outer wall before passing; Before corresponding settling region described, between headwall and the back headwall heavy mud is set and replaces assembly, this assembly is the bar shaped funnel group that is formed on preceding headwall and back headwall by the bar shaped funnel vertical fixing of a plurality of connections arranged side by side, and the bar shaped funnel is to be possessed at interval with the base and symmetrical outward-dipping setting and stripe board both ends form on headwall and the back headwall before closing at respectively by two stripe board.
The angle of two stripe board of described bar shaped funnel is 45 °～90 °, and the base is spaced apart 3cm～30cm.
Described horizontal baffle bottom is provided with a plurality of vertical training wall sections of fixedlying connected with oxidation ditch both walls and horizontal baffle.
Angle between described inclination training wall and horizontal baffle is 95 °～120 °.
Described former water water inlet pipe comprises along solid-liquid separator water leg outer wall and is higher than high-order water inlet pipe that horizontal plane is provided with and the low level water inlet pipe that is provided with perpendicular to the oxidation ditch side wall in horizontal baffle front end bottom surface, oxygen-starved area.
Described bar shaped funnel group is fixed concrete structure or removable plates mount structure.
Principle of design of the present invention is: (1) adopts the funneling solid-liquid separator of bar shaped, the mixed solution of heavy mud and oxidation ditch directed flow has the desired binding interface in the device, the heavy mud of solid-liquid separator bottom moves replacement with the external mix liquid successive that enters by bar shaped funnel bottom opening, realize not depositing mud in the device, with this technical problem that solves the anti-bulking sludge come-up of solid-liquid separator, ensure solid-liquid separation effect.(2) adopt existing make the gas lift plug-flow mode that the oxidation ditch mixed solution circulates by gas lift power in, set up the pulsation aeration mode, existing micro-hole aerator group and be set to comprise two groups of continuous air feed micro-hole aerator group and intermittent gas supply micro-hole aerator groups, air feed micro-hole aerator group is the continuous air feed of certain proportion of using the gas total amount in oxidation and the nitrifying process with biochemical reaction continuously, and the interior mixed solution of ditch is circulated with lower flow velocity; At interval behind the certain hour,,, make in the ditch mixed solution be able to higher flow velocity and circulate, promptly produce in a short time and spring up stream, go round and begin again promptly to whole aeration head air feed of two groups of micro-hole aerator groups again to intermittent gas supply micro-hole aerator group air feed in short-term.Continuously, under the lower circulation velocity, mixed solution prolongs by the time relatively in the oxygen-starved area, solves oxidation ditch denitrogenation dephosphorizing effect ideal problem not to the utmost by improving denitrification process; Higher circulation velocity is provided within a short period of time, the overall work state of oxidation ditch does not change, and disturbance is about to the active sludge of sinking during postscript, does not increase in the air feed total amount, under the prerequisite that treatment effect does not reduce, guarantee that with most economical method for saving energy heavy mud does not take place oxidation ditch.(3) in the horizontal baffle bottom a plurality of vertical training wall sections are set, the oxygen-starved area is separated into several chambers, the oxygen-starved area is arranged in the several chambers of lower floor's raceway groove of oxidation ditch, because mixed solution does not contact with atmosphere, again since mixed solution in indoor formed annularly flow, prolonged the reaction times relatively, good anaerobic environment makes denitrification process very thorough, and the removal effect of total nitrogen is better than existing oxidation ditch.In addition, these vertical training wall sections force the flow velocity of lower floor's trench bottom to be accelerated, and the effect of the unlikely heavy mud of lower floor's trench bottom under the low flow velocity has been played in the disturbance aggravation.Moreover some support lintels have been arranged at the bigger horizontal baffle bottom of area that is arranged so that of plurality of vertical training wall section, have improved the bulk strength of civil engineering structure.(4) the funneling solid-liquid separator of bar shaped is arranged between aerobic zone and the anoxic zone of transition, and when reaching the good solid-liquid separating effect, the mixed solution after concentrating directly enters the anoxic zone of transition, realizes no blowback stream, has saved energy.In addition, this solid-liquid separator is arranged on oxidation ditch aerobic zone end, has changed the waterpower path of mixed solution in aerobic zone, and the formed stream of turning back plays increases the effect of aerobic zone hydraulic disturbance, can reduce the heavy mud at horizontal baffle and ramp type training wall flex point place; The chute of crossing of connection aerobic zone and anoxic zone of transition is set, can increases the hydraulic disturbance on top layer, transition oxygen-starved area, improve the mixed effect of high-order water inlet and mixed solution.(5) because the heavy mud replacement assembly that adopts in the solid-liquid separator is that bar shaped funnel group is different from existing swash plate or inclined tube facility, the solid-liquid separator internal structure is simplified, be fit to adopt fixed concrete structure, help reducing cost of manufacture and maintenance cost, have stronger economy and practicality.
The invention has the beneficial effects as follows: (1) adopts the funneling solid-liquid separator of bar shaped to eliminate solid-liquid separator bulking sludge come-up problem in the prior art, guarantees that effluent quality is good.(2) solid-liquid displacement zone is arranged between aerobic zone and the transition oxygen-starved area, makes the mixed solution after concentrating directly enter the anoxic zone of transition, realizes no blowback stream, has saved energy.Simultaneously, playing increases the effect of aerobic zone hydraulic disturbance, can reduce the heavy mud at horizontal baffle and ramp type training wall flex point place; In addition, the hydraulic disturbance that chute can increase top layer, transition oxygen-starved area was set, improved high-order water inlet and mixed solution mixed effect.(3) the micro-hole aerator group is set to the unitized construction of continuous air feed micro-hole aerator group and intermittent gas supply micro-hole aerator group, utilize the pulsation aeration mode, can make denitrification process thorough, obtain good denitrogenation dephosphorizing effect, can prevent that active sludge from sinking by springing up stream again, guarantee that with most economical method heavy mud does not take place oxidation ditch, improves the integrated resilience of oxidation ditch.(4) in the horizontal baffle bottom a plurality of vertical training wall sections are set, the oxygen-starved area is separated into several chambers, good anaerobic environment makes denitrification process thorough, and the total nitrogen removal effect is better than existing oxidation ditch, stable effluent quality.(5) vertically the training wall section is accelerated lower floor's trench bottom flow velocity, and the disturbance aggravation prevents the formation of the heavy mud of lower floor's trench bottom.(6) vertical training wall section forms the support lintel of horizontal baffle, improves the bulk strength of civil engineering structure.(7) adopted bar shaped funnel group structure in the solid-liquid separator, made designs simplification, be fit to adopt fixed concrete structure, life-time service reduces cost of manufacture and maintenance cost, improves economy and practicality.
Description of drawings
Fig. 1 is the structural representation of the funneling solid-liquid separator of bar shaped;
Fig. 2 is a vertical view of using the gas lifting pulsation push flowing tridimensional circulating oxidation ditch of the funneling solid-liquid separator of bar shaped;
Fig. 3 is the A-A cross section view of Fig. 2;
Fig. 4 is a fundamental diagram of using the gas lifting pulsation push flowing tridimensional circulating oxidation ditch of the funneling solid-liquid separator of bar shaped.
Among the figure: 1 oxidation ditch, 11 transition oxygen-starved areas, 12 solid-liquid displacement zone, 121 settling sections, 122 disengaging zone, 123 settling regions, 13 aerobic zones, 14 gas lift aerobic zones, wall behind 15 oxidation ditches, 16 oxygen-starved areas, 17 oxidation ditch side walls, 18 oxidation ditch front walls, the funneling solid-liquid separator of 2 bar shapeds, headwall behind 21 solid-liquid separators, headwall before the 211 flow tube water-ins, 22 solid-liquid separators, 221 receive the mill weir water outlet, 23 water legs, and 231 cross the chute water outlet, 24 bar shaped funnel groups, 25 bar shaped funnels, 251 stripe board, 26 water port, 27 receive mill weir, and 28 cross chute, 3 swash plate training walls, 4 micro-hole aerator groups, 41 continuous air feed micro-hole aerator groups, 42 intermittent gas supply micro-hole aerator groups, 51 high-order shore pipes, 52 low level shore pipes, 6 vertical training wall sections, 7 horizontal baffles, 81 high-order water inlet pipes, 82 low level water inlet pipes, 9 mud, 10 water shoots.
Below in conjunction with drawings and Examples to the detailed description of the invention.
Embodiment
Embodiment 1
Fig. 1 shows the funneling solid-liquid separator 2 of a kind of bar shaped, comprise the settling section of forming solid-liquid displacement zone of crowding around that is vertically connected between oxidation ditch 1 both walls, the vertical headwall of disengaging zone and settling region, the heavy mud that is positioned at settling section and receives mill weir with vertical headwall plurality of parallel connected vertically and be located at the settling region is replaced assembly, it is characterized in that above-mentioned vertical headwall comprises preceding headwall 22 and back headwall 21 in parallel, headwall 22 outer upper are provided with the bar shaped water leg 23 that is vertically connected between the oxidation ditch both walls before being close to, above-mentioned plurality of parallel is received mill weir 27 and is located between preceding headwall 22 and the back headwall 21, and is communicated with the water leg 23 that is provided with water port 26 by the corresponding receipts mill weir water outlet 221 that is provided with on the preceding headwall; Water leg 23 is the square-section groove.Some bar shapeds are crossed chute 28 and are received mill weir 27 staggered parallel settings, and the water-in 211 of one end for stretching out by back headwall 21, the other end are headwall 22 and the water outlet 231 that stretches out from water leg 23 outer walls before passing; Before corresponding settling region above-mentioned, between headwall 22 and the back headwall 21 heavy mud is set and replaces assembly, this assembly is the bar shaped funnel group 24 that is formed on preceding headwall and back headwall by bar shaped funnel 25 vertical fixing of a plurality of connections arranged side by side, and bar shaped funnel 25 is to be possessed at interval with the base and symmetrical outward-dipping setting and stripe board both ends form on headwall and the back headwall before closing at respectively by two stripe board 251.Two stripe board angles of above-mentioned bar shaped funnel 25 are 45 °-90 °, and two stripe board bases are spaced apart 3cm～30cm.Actually in bar shaped funnel 25 bottoms formed a strip rectangular aperture, the size of this opening is according to determining under the particular case of isometric oxidation ditch not.
Bar shaped funnel group can adopt fixed concrete structure or removable plates mount structure among the present invention.In the present embodiment, bar shaped funnel group has adopted fixed concrete structure, is provided with 5 bar shapeds in the solid-liquid separator 2 and crosses 28,6 of chutes to receive 27,6 bar shaped funnel 25, two stripe board angles that connect side by side of mill weir be 50 °, and two stripe board bases are spaced apart 3cm.
Embodiment 2a
Fig. 2～Fig. 3 shows the gas lifting pulsation push flowing tridimensional circulating oxidation ditch 1 of the funneling solid-liquid separator of bar shaped of a kind of embodiment of employing 1, comprise oxygen-starved area 16, be provided with the gas lift aerobic zone 14 of micro-hole aerator group 4, aerobic zone 13, solid-liquid displacement zone 12, former water water inlet pipe, water shoot and shore pipe, wherein, be provided with in the middle and lower part of oxidation ditch 1 oxidation ditch is divided into, two-layer raceway groove and front end and oxidation ditch front wall 18 are possessed distance down, wall 15 is possessed the horizontal baffle 7 of distance behind rear end and the oxidation ditch, above-mentioned aerobic zone 13 is located at top-layer channel, and lower floor's raceway groove is located in above-mentioned oxygen-starved area 16; It is characterized in that it is the inclination training wall 3 of vertical headwall that above-mentioned horizontal baffle 7 rear ends connect to back upper place extension and top, the angle that inclination training wall 3 and horizontal baffle are 7 is 95 °～120 °, in this example is 110 °.Above-mentioned gas lift aerobic zone 14 is located at behind inclination training wall 7 and the oxidation ditch between the wall 15, and above-mentioned micro-hole aerator group 4 is the pulsation push flowing micro-hole aerator groups by wall 15 horizontally disposed continuous air feed micro-hole aerator groups 41 arranged side by side and intermittent gas supply micro-hole aerator group 42 constitute behind the oxidation ditch in gas lift aerobic zone 14 bottoms; At oxidation ditch 1 front end transition oxygen-starved area 11 is set, solid-liquid displacement zone 12 is located between the aerobic zone 13 and transition oxygen-starved area 11 of top-layer channel, the solid-liquid separator 2 that above-mentioned solid-liquid displacement zone 12 adopts is the funneling solid-liquid separators of bar shaped, comprise the vertical preceding headwall 22 of crowding around settling section 121, disengaging zone 122 and the settling region 123 of forming solid-liquid displacement zone 12 and the back headwall 21 that are vertically connected at 17 of oxidation ditch both walls, headwall 22 outer upper are provided with the bar shaped water leg 23 that is vertically connected at 17 of oxidation ditch 1 both walls before being close to, and water leg 23 is a square groove.Receive mill weir 27 side by side for 6 and be located between preceding headwall 22 and the back headwall 21, and be communicated with the water leg 23 that is provided with water port 26 by corresponding receipts mill weir 27 water outlets 221 that are provided with on the preceding headwall 22; Water port 26 is arranged on subhorizontal mid-way on water leg 23 outer walls, and is connected to oxidation ditch front wall outside by water shoot 10.5 bar shapeds are crossed chute 28 and are received mill weir 27 staggered parallel settings, and the water-in 211 of one end for stretching out by back headwall 21, the other end are headwall 22 and the water outlet 231 that stretches out from water leg 23 outer walls before passing; Before corresponding settling region 123 above-mentioned, between headwall 22 and the back headwall 21 heavy mud is set and replaces assembly, this assembly is the bar shaped funnel group 24 that is formed in preceding headwall 22 and back headwall 21 by 6 bar shaped funnel 25 vertical fixing that connect side by side, bar shaped funnel 25 be by two stripe board 251 possess at interval with the base and symmetrical outward-dipping setting and stripe board both ends close at respectively before headwall 22 and after form on the headwall 21.Two stripe board angles of above-mentioned bar shaped funnel 25 are 45 °～90 °, and two stripe board bases are spaced apart 3cm-30cm.Bar shaped funnel group can adopt fixed concrete structure or removable plates mount structure.In the present embodiment, be provided with 5 bar shapeds in the solid-liquid separator 2 and cross 28,6 of chutes to receive 27,6 bar shaped funnel 25, two stripe board angles that connect side by side of mill weir be 50 °, two stripe board bases are spaced apart 3cm.Bar shaped funnel group has adopted fixed concrete structure.
A plurality of vertical training wall sections 6 of fixedlying connected with oxidation ditch both walls 17 and horizontal baffle 7 are set in above-mentioned horizontal baffle 7 bottoms.In this example, be provided with 3 vertical training wall sections 6.
Above-mentioned former water water inlet pipe comprises along solid-liquid separator water leg 23 outer walls and is higher than high-order water inlet pipe 81 that horizontal plane is provided with and the low level water inlet pipe 82 that 16 horizontal baffle front end bottom surfaces are provided with perpendicular to oxidation ditch side wall 17 in the oxygen-starved area.Two positions are provided with former water water inlet pipe about adopting, and help balanced nutritious material, guarantee that biochemical reaction needs.
Above-mentioned shore pipe comprises the low level shore pipe 52 that is arranged at the high-order shore pipe 51 of swash plate training wall 3 roots and is provided with along oxidation ditch front wall 18 roots perpendicular to oxidation ditch side wall 17 in the transition oxygen-starved area.
The working process and the principle of the gas lifting pulsation push flowing tridimensional circulating oxidation ditch of the funneling solid-liquid separator of application bar shaped provided by the invention are as follows:
Fig. 2～Fig. 3 shows the gas lifting pulsation push flowing tridimensional circulating oxidation ditch that adopts the funneling solid-liquid separator of bar shaped, and Fig. 4 shows its principle of work.Fig. 4 hollow core arrow is represented mixed solution, and filled arrows is represented mud.As shown in the figure, the gas lifting pulsation push flowing oxidation ditch of using the funneling solid-liquid separator of bar shaped has 5 functional areas: gas lift aerobic zone 14, aerobic zone 13, solid-liquid displacement zone 12, transition oxygen-starved area 11 and oxygen-starved area 16 are provided with the funneling solid-liquid separator 2 of bar shaped in solid-liquid displacement zone 12.Former water enters buffering oxygen-starved area 11 respectively by high-order water inlet pipe 81 and low level water inlet pipe 82 and forms mixed solution with oxygen-starved area 16, organism in the mixed solution spreads rapidly and is adsorbed by microorganism, can effectively reduce the dissolved oxygen in these two zones, can also be for anti-nitration reaction provide carbon source, thus remove ammonia nitrogen in the middle of the waste water better.Mixed solution flows into gas lift aerobic zone 14 forward, and this zone is provided with micro-hole aerator group 4, and it comprises continuous air feed micro-hole aerator group 41 and intermittent gas supply micro-hole aerator group 42, and the system of being respectively provides oxygen and circulation power.In the present embodiment, handle former water (sewage) amount and be 12.5m
3The total air demand of/h is 0.8m
3/ min, the air demand of air feed micro-hole aerator group 41 is 0.6m continuously
3/ min, the air demand of intermittent gas supply micro-hole aerator group 42 is 0.2m
3/ min, every interval 20 minutes, intermittent gas supply micro-hole aerator group 42 was opened 5 minutes; Under the brute force of gas lift current stirs, the liquid stream that enters gas lift aerobic zone 14 fast and the bubble that the micro-hole aerator group is provided contact and disperse, follow mixed solution stream kinetic energy when the inclination training wall 3 of gas lift aerobic zone 14 1 sides rises to the vertical end top water-level of inclination training wall that gas lift promotes in stream and the ditch and be converted into gravitional force fully, inclination training wall 3 tops of jumping over descend rapidly and enter aerobic zone 13, in the one's respective area, mainly remove with COD, BOD is contaminants associated for the carbon source of sign, after finishing hydraulic retention and aerobic biochemical reaction under the aerobic zone action of turbulent flow, partially mixed liquid enters the solid-liquid separator 2 that is positioned at solid-liquid displacement zone, as shown in Figure 4, mixed solution is entered in the bar shaped funnel by bar shaped funnel 25 bottom openings, raising speed is slowed down, form heavy mud, the heavy mud that has entered before having replaced, then under stream effect forward, enter in the oxidation ditch mixed solution, then, new mixed solution enters again in the bar shaped funnel, go round and begin again, heavy mud is alternately changed, after solid-liquid displacement zone realizes mud-water separation, clear water is enriched in the middle of the water leg 23 by receiving mill weir 27, then, by water port 26 by water shoot 10 outflow systems.Aerobic zone 13 most of mixed solutions enter oxygen-starved area 16 along the tap drain road, and the small portion mixed solution enters excessive oxygen-starved area 11 by crossing chute 28, and mixed solution is got back to oxygen-starved area 16 once more and mixed with the former water that newly advances, thus the circulation that goes round and begins again.Being provided with two place's shore pipes in the oxidation ditch is high-order shore pipe 51 and low level shore pipe 52 regularly outside spoil disposals, thus the content of phosphorus in the middle of control sludge age and the reduction waste water.
Adopt continuous air feed aeration and intermittent gas supply aeration bonded mode, make flow velocity periodical change in the oxidation ditch, every interval 20-90 minute, intermittent gas supply micro-hole aerator group 42 was opened 5-10 minute.In actually operating, can require, situation such as heavy mud regulate perfect with the integrated resilience that reaches oxidation ditch cycle time according to active sludge quality, influent quality, water outlet.
Embodiment 2b
In the present embodiment, be provided with 9 bar shapeds in the solid-liquid separator 2 of gas lifting pulsation push flowing tridimensional circulating oxidation ditch and cross 28,10 of chutes to receive 27,5 bar shaped funnel 25, two stripe board angles that connect side by side of mill weir be 90 °, two stripe board bases are spaced apart 15cm.The angle that inclination training wall 3 and horizontal baffle are 7 is 120 °; Be provided with 5 vertical training wall sections 6 in horizontal baffle 7 bottoms.
Handle former water (sewage) amount 84m
3/ h, total air demand is 2m
3/ min, the air demand of air feed micro-hole aerator group 41 is 1.6m continuously
3/ min, the air demand of intermittent gas supply micro-hole aerator group 42 is 0.4m
3/ min, every interval 50 minutes intermittent gas supply micro-hole aerators group 42 was opened 7 minutes.
Present embodiment removes above-mentioned setting and embodiment 2a distinguishes to some extent, and other constitutional featuress and working process, principle are all identical with embodiment 2a.
Embodiment 2c
In the present embodiment, be provided with 11 bar shapeds in the solid-liquid separator 2 of gas lifting pulsation push flowing tridimensional circulating oxidation ditch and cross 28,12 of chutes to receive 27,7 bar shaped funnel 25, two stripe board angles that connect side by side of mill weir be 80 °, two stripe board bases are spaced apart 25cm; The angle that inclination training wall 3 and horizontal baffle are 7 is 100 °; Be provided with 7 vertical training wall sections 6 in horizontal baffle 7 bottoms.
Handle former water (sewage) amount 125m
3/ h, total air demand is 3.4m
3/ min, the air demand of air feed micro-hole aerator group 41 is 2.55m continuously
3/ min, the air demand of intermittent gas supply micro-hole aerator group 42 is 0.85m
3/ min, every interval 85 minutes intermittent gas supply micro-hole aerators group 42 was opened 10 minutes.
Present embodiment removes above-mentioned setting and embodiment 2a distinguishes to some extent, and other constitutional featuress and working process, principle are all identical with embodiment 2a.
Effect of the present invention
In embodiment 2a～embodiment 2c:
Above-mentioned former water meets the following conditions:
BOD5: COD 〉=1: 3; The residence time 〉=12 of former water in oxidation ditch hour; Water inlet COD250-600mg/L; Ammonia nitrogen 25-50mg/L; Total nitrogen 30-50mg/L; Total phosphorus 2-5mg/L.
The sewage disposal result is: COD 30-48mg/L, and clearance is greater than 90% (adopting " the mensuration dichromate titration of GB11914-89COD " to measure); Ammonia nitrogen 3.5-5mg/L, clearance is greater than 90% (adopting GB7479-87 " the mensuration nessler reagent colorimetry of water quality ammonium " to measure); Total nitrogen 8-14mg/L, total clearance is greater than 70% (adopting " the mensuration alkalescence alkaline potassium per-sulfate digestion ultraviolet spectrophotometry of GB11894-89 water quality total nitrogen " to measure); Total phosphorus 0.3-0.4mg/L, clearance is greater than 80% (adopting " the mensuration ammonium molybdate spectrophotometry of GB11983-89 water quality total phosphorus " to measure); Go out water suspension less than 10mg/L (adopting " the gravimetry method of GB11901-89 water quality suspended substance " to measure).
The above only is the preferred embodiments of the present invention, is not shape material of the present invention and structure are done any pro forma restriction.Every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (9)
1. funneling solid-liquid separator of bar shaped, comprise the settling section of crowding around solid-liquid displacement zone that is vertically connected between the oxidation ditch both walls, the vertical headwall of disengaging zone and settling region, the heavy mud that is positioned at settling section and receives mill weir with vertical headwall plurality of parallel connected vertically and be located at the settling region is replaced assembly, it is characterized in that described vertical headwall comprises preceding headwall and back headwall in parallel, the headwall outer upper is provided with the bar shaped water leg that is vertically connected between the oxidation ditch both walls before being close to, described plurality of parallel is received mill weir and is located between preceding headwall and the back headwall, and is communicated with the water leg that is provided with water port by the corresponding receipts mill weir water outlet that is provided with on the preceding headwall; Some bar shapeds are crossed chute and are received staggered parallel setting of mill weir, and the water-in of one end for stretching out by the back headwall, the other end are headwall and the water outlet that stretches out from the water leg outer wall before passing; Before corresponding settling region described, between headwall and the back headwall described heavy mud is set and replaces assembly, this assembly is the bar shaped funnel group that is formed on preceding headwall and back headwall by the bar shaped funnel vertical fixing of a plurality of connections arranged side by side, and the bar shaped funnel is to be possessed at interval with the base and symmetrical outward-dipping setting and stripe board both ends form on headwall and the back headwall before closing at respectively by two stripe board.
2. the funneling solid-liquid separator of bar shaped according to claim 1, the angle that it is characterized in that two stripe board of described bar shaped funnel is 45 °～90 °, the base is spaced apart 3cm～30cm.
3. the funneling solid-liquid separator of bar shaped according to claim 1 and 2 is characterized in that described bar shaped funnel group is fixed concrete structure or removable plates mount structure.
4. gas lifting pulsation push flowing tridimensional circulating oxidation ditch that adopts the funneling solid-liquid separator of bar shaped as claimed in claim 1, comprise the oxygen-starved area, be provided with gas lift aerobic zone, aerobic zone, solid-liquid displacement zone, former water water inlet pipe, water shoot and the shore pipe of micro-hole aerator group, wherein, the middle and lower part of oxidation ditch be provided with oxidation ditch is divided into upper and lower two-layer raceway groove and front end and oxidation ditch front wall to possess distance, rear end and oxidation ditch after wall possess the horizontal baffle of distance, described aerobic zone is located at top-layer channel, and lower floor's raceway groove is located in described oxygen-starved area; It is characterized in that it is the inclination training wall of vertical headwall that described horizontal baffle rear end connects to back upper place extension and top; Described gas lift aerobic zone is located at behind inclination training wall and the oxidation ditch between the wall, described micro-hole aerator group be by in gas lift aerobic zone bottom behind the oxidation ditch wall pulsation push flowing micro-hole aerator group that constitutes of horizontally disposed continuous air feed micro-hole aerator group and intermittent gas supply micro-hole aerator group side by side; At the oxidation ditch front end transition oxygen-starved area is set, solid-liquid displacement zone is located between the aerobic zone and transition oxygen-starved area of top-layer channel, the solid-liquid separator that described solid-liquid displacement zone adopts is the funneling solid-liquid separator of bar shaped, comprise the settling section of forming solid-liquid displacement zone of crowding around that is vertically connected between the oxidation ditch both walls, the vertical preceding headwall of disengaging zone and settling region and back headwall, the headwall outer upper is provided with the water leg that is vertically connected between the oxidation ditch both walls before being close to, plurality of parallel is received mill weir and is located between preceding headwall and the back headwall, and is communicated with the water leg that is provided with water port by the corresponding receipts mill weir water outlet that is provided with on the preceding headwall; Some bar shapeds are crossed chute and are received staggered parallel setting of mill weir, and the water-in of one end for stretching out by the back headwall, the other end are headwall and the water outlet that stretches out from the water leg outer wall before passing; Before corresponding settling region described, between headwall and the back headwall heavy mud is set and replaces assembly, this assembly is the bar shaped funnel group that is formed on preceding headwall and back headwall by the bar shaped funnel vertical fixing of a plurality of connections arranged side by side, and the bar shaped funnel is to be possessed at interval with the base and symmetrical outward-dipping setting and stripe board both ends form on headwall and the back headwall before closing at respectively by two stripe board.
5. gas lifting pulsation push flowing tridimensional circulating oxidation ditch according to claim 4, the angle that it is characterized in that two stripe board of described bar shaped funnel is 45 °～90 °, the base is spaced apart 3cm～30cm.
6. gas lifting pulsation push flowing tridimensional circulating oxidation ditch according to claim 5 is characterized in that in described horizontal baffle bottom a plurality of vertical training wall sections of fixedlying connected with oxidation ditch both walls and horizontal baffle being set.
7. according to claim 4,5 or 6 described gas lifting pulsation push flowing tridimensional circulating oxidation ditch, it is characterized in that the angle between described inclination training wall and horizontal baffle is 95 °～120 °.
8. according to claim 4,5 or 6 described gas lifting pulsation push flowing tridimensional circulating oxidation ditch, it is characterized in that described former water water inlet pipe comprises along solid-liquid separator water leg outer wall and be higher than high-order water inlet pipe that horizontal plane is provided with and the low level water inlet pipe that is provided with perpendicular to the oxidation ditch side wall in horizontal baffle front end bottom surface, oxygen-starved area.
9. according to claim 4,5 or 6 described gas lifting pulsation push flowing tridimensional circulating oxidation ditch, it is characterized in that described bar shaped funnel group is fixed concrete structure or removable plates mount structure.
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| CN2010101501358A CN101875511B (en) | 2010-04-19 | 2010-04-19 | Strip-type funneling solid-liquid separator and gas lifting pulsation push flowing oxidation ditch thereof |
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| CN2010101501358A CN101875511B (en) | 2010-04-19 | 2010-04-19 | Strip-type funneling solid-liquid separator and gas lifting pulsation push flowing oxidation ditch thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102583892B (en) * | 2012-02-28 | 2013-07-03 | 居文钟 | Symmetrical opposite three-dimensional circular-flow integration oxidation ditch |
| CN103395852B (en) * | 2013-08-18 | 2015-02-18 | 武汉宝捷能环境工程技术有限公司 | Inclined hole-type gas-water separator |
| CN106830329A (en) * | 2017-03-30 | 2017-06-13 | 居文钟 | Double-decker three-dimensional circular-flow integration oxidation ditch |
| CN107140786A (en) * | 2017-05-25 | 2017-09-08 | 清水源（上海）环保科技有限公司 | A kind of biology sewage treatment equipment |
| CN109231513A (en) * | 2018-10-19 | 2019-01-18 | 四川安达尔环保工程有限公司 | A kind of endogenous pollution governing system |
| CN113087361A (en) * | 2021-04-21 | 2021-07-09 | 四川葵清环保科技有限公司 | Anti-swelling sludge treatment equipment and process |
| CN113003897A (en) * | 2021-04-23 | 2021-06-22 | 辽宁一诺环境产业集团有限公司 | Multistage air-lift solar integrated sewage treatment system |
| CN115196748B (en) * | 2022-07-08 | 2023-06-23 | 贵州楚天两江环境股份有限公司 | Up-flow sewage treatment process and sewage treatment equipment |
| CN117342670B (en) * | 2023-11-07 | 2024-06-25 | 临沂华特装饰材料有限公司 | Sewage treatment equipment capable of uniformly adding sewage treatment agent |
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| US4259182A (en) * | 1979-07-26 | 1981-03-31 | Houston Systems Manufacturing Co. | Waste treatment apparatus |
| CN2200670Y (en) * | 1993-06-24 | 1995-06-14 | 清华大学 | Assembly solid-liquid separator of integral oxidation channel |
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