The garbage transfer station percolate is handled and reuse method
Technical field
The present invention relates to a kind of garbage transfer station percolate handles and reuse method.
Background technology
CN200910111323.7 discloses " a kind of zero discharge recycle treatment method for garbage leachate ", and its purpose is to utilize materialization, biochemistry, membrane filtration coupling technique, and a kind of zero discharge recycle treatment method for garbage leachate is provided.The technical scheme of this patent application is: percolate stoste is sent into former water equalizing tank, water outlet is removed suspended solids and impurity through film coagulation reactor, the back flushing effluent recycling of film coagulation reactor is to former water equalizing tank, the waste water of discharging enters the film contact reactor, forms byproduct of ammonium sulfate solution; The water outlet of film contact reactor enters the flow lifting type anaerobic biological reactor, carries out anaerobic biological and handles, and membrane bioreactor is sent in the water outlet of flow lifting type anaerobic biological reactor carried out the aerobic biochemical processing; Continuous membrane filter is sent in the water outlet of membrane bioreactor filtered, the concentrated solution and the backwashing water of continuous membrane filter is back to former water equalizing tank; Reverse osmosis system is sent in the water outlet of continuous membrane filter, the concentrated solution of reverse osmosis system is removed through the boiler oxidation torch firing, but the water outlet of reverse osmosis system is the pure water of reuse.Its weak point is: the use of reverse osmosis system, and the maintenance difficulties of increase equipment, the cost of investment height, and the concentrated solution that produces also increases the workload of subsequent disposal.Most separates ammonia nitrogen and organic place to go but not biological method by physico-chemical process, and it is big to add dose, has increased running cost.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of by anaerobism removal majority of organic pollutants, improve the percolate biodegradability by catalytic oxidation, by film the crown_interception of microorganism is strengthened biological process at aerobic MBR reactor, finish the biological degradation of principal pollutant, guarantee effluent quality, the garbage transfer station percolate that is suitable for the dispersion treatment of garbage transfer station percolate and reuse is on the spot handled and reuse method.
In order to solve the problems of the technologies described above, the technical scheme that the present invention proposes is:
Described garbage transfer station percolate is handled and reuse method, and its special character is that described method comprises:
(1) percolate of rubbish compression generation enters the water storage well, promotes through lift pump and enters equalizing tank;
(2) carry out aerobic reaction through entering one-level MBR after the anaerobic digestion;
(3) one-level MBR water outlet inflow catalytic oxidation tower carries out catalytic oxidation;
(4) improve after the biodegradability, enter secondary MBR and carry out the aerobic biochemical reaction;
Wherein:
The anaerobic technique of described method (2) can adopt anaerobic reactor; The startup of anaerobic reactor and domestication are carried out simultaneously, and the initial start stage flooding quantity is less, and flooding quantity increases gradually subsequently, until reaching the reactor design flooding quantity.
Described method (3) one-level MBR, method (4) secondary MBR are interior circulating membrane bioreactor, are provided with hollow fiber film assembly in the reactor, by membrane module microorganism are held back, and the microorganism of holding back carries out biochemical degradation to organic pollutant and ammonia nitrogen; The liquid level of reactor is regulated by the interlock of automatic level controller and intake pump, air is provided and carries out aeration by blower fan, control out opening of water pump and stop, go out water pump and adopt the intermittent suction operation by automatic program control by micro-hole aerator, suction frequency adjustable, and regularly recoil.
The catalytic oxidation tower of described method (3) is the electric Fenton Fenton reaction unit of improvement, method is for being filled into waste iron filing and gac or coke in the catalytic oxidation tower according to known ratio and structure, and the anodic-cathodic plate is set in the interior both sides of filler, apply 12~24V volts DS electrostatic field at battery lead plate, excite Fenton Fenton reaction, the while aeration also adds industrial hydrogen peroxide, forms the synergistic effect of little electrolysis and Fenton's reaction.
Described anaerobic reactor is selected a kind of of upflow anaerobic sludge blanket reactor (UASB), anaerobic reactor (EGSB), hydrolysis acidification pool for use.
Second technical scheme that the present invention proposes is:
Described garbage transfer station percolate is handled and reuse method, and its special character is that described method comprises:
(1) percolate of rubbish compression generation enters the water storage well, promotes through lift pump and enters equalizing tank;
(2) carry out aerobic reaction through entering one-level MBR after the anaerobic digestion;
(3) one-level MBR water outlet inflow catalytic oxidation tower carries out catalytic oxidation, finishes the degraded of organism and ammonia nitrogen; Wherein:
The anaerobic technique of described method (2) can adopt anaerobic reactor; The startup of anaerobic reactor and domestication are carried out simultaneously, and the initial start stage flooding quantity is less, and flooding quantity increases gradually subsequently, until reaching the reactor design flooding quantity.
Described anaerobic reactor is selected a kind of of upflow anaerobic sludge blanket reactor (UASB), anaerobic reactor (EGSB), hydrolysis acidification pool for use.
Described method (3) one-level MBR is interior circulating membrane bioreactor, is provided with hollow fiber film assembly in the reactor, by membrane module microorganism is held back, and the microorganism of holding back carries out biochemical degradation to organic pollutant and ammonia nitrogen; The liquid level of reactor is regulated by the interlock of automatic level controller and intake pump, air is provided and carries out aeration by blower fan, control out opening of water pump and stop, go out water pump and adopt the intermittent suction operation by automatic program control by micro-hole aerator, suction frequency adjustable, and regularly recoil.
The catalytic oxidation tower of described method (3) is the electric Fenton Fenton reaction unit of improvement, method is for being filled into waste iron filing and gac or coke in the catalytic oxidation tower according to known ratio and structure, and the anodic-cathodic plate is set in the interior both sides of filler, apply 12~24V volts DS electrostatic field at battery lead plate, excite Fenton Fenton reaction, the while aeration also adds industrial hydrogen peroxide, forms the synergistic effect of little electrolysis and Fenton's reaction.
The 3rd technical scheme that the present invention proposes is:
Described garbage transfer station percolate is handled and reuse method, and its special character is that described method comprises:
(1) percolate of rubbish compression generation enters the water storage well, promotes through lift pump and enters equalizing tank;
(2) carry out aerobic reaction through entering one-level MBR after the anaerobic digestion;
Wherein:
The anaerobic technique of described method (2) can adopt anaerobic reactor; The startup of anaerobic reactor and domestication are carried out simultaneously, and the initial start stage flooding quantity is less, and flooding quantity increases gradually subsequently, until reaching the reactor design flooding quantity.
Described anaerobic reactor is selected a kind of of upflow anaerobic sludge blanket reactor (UASB), anaerobic reactor (EGSB), hydrolysis acidification pool for use.
Compared with prior art, the invention has the beneficial effects as follows;
(1) by the water outlet average COD≤30mg/L after the processing of " anaerobism-MBRI-catalytic oxidation-MBRII " combination process, NH
3-N≤2mg/L, water quality can reach miscellaneous water water quality standard (table is as a result surveyed in the water breakthrough quality supervision); By the water outlet average COD≤60mg/L after the processing of " anaerobism-MBRI-catalytic oxidation " combination process, NH
3-N≤2mg/L, water quality can reach the GB18918-2002 first discharge standard, has guaranteed effluent quality, and concrete degradation process sees also Fig. 1, shown in Figure 2.
(2) this processing and reuse method have principal pollutant such as efficient raising biodegradability, stable degraded COD, nitrogen, phosphorus, and technology is simple, take up an area of little, the technical superiority that cost is low.
(3) this processing and reuse method be " anaerobism-MBRI-catalytic oxidation-MBR II " formula that is combined into one waste disposal plant, is used for effective degraded of garbage transfer station percolate and provided the operational conditions and the constitutional features of anaerobic reaction, catalytic oxidation, aerobic MBR reactor.
Description of drawings
Fig. 1 is a COD degradation process synoptic diagram of the present invention.
Fig. 2 is an ammonia nitrogen degradation process synoptic diagram of the present invention.
Embodiment
The invention will be further described below in conjunction with embodiment:
[embodiment 1]
Be used for municipal wastes transhipment station percolate and handle and reuse method, comprise following method:
(1) percolate of rubbish compression generation enters the water storage well, promotes through lift pump and enters equalizing tank;
(2) carry out aerobic reaction through entering one-level MBR after the anaerobic digestion;
(3) one-level MBR water outlet inflow catalytic oxidation tower carries out catalytic oxidation;
(4) improve after the biodegradability, enter secondary MBR and carry out the aerobic biochemical reaction, finish the degraded of organism and ammonia nitrogen.
The garbage transfer station percolate is water outlet average COD≤30mg/L after this combination process is handled, NH
3-N≤2mg/L, water quality can reach miscellaneous water water quality standard (table is as a result surveyed in the water breakthrough quality supervision).
Wherein:
The anaerobic technique of described method (2) adopts anaerobic reactors such as upflow anaerobic sludge blanket reactor UASB, anaerobic reactor EGSB, acidication; The startup of reactor and domestication are carried out simultaneously, and the initial start stage flooding quantity is less, and flooding quantity increases gradually subsequently, until reaching the reactor design flooding quantity.
Described method (3) one-level MBR, method (4) secondary MBR are interior circulating membrane bioreactor, are provided with hollow fiber film assembly in the reactor, by membrane module microorganism are held back, and the microorganism of holding back carries out biochemical degradation to organic pollutant and ammonia nitrogen; The liquid level of reactor is regulated by the interlock of automatic level controller and intake pump, air is provided and carries out aeration by blower fan, control out opening of water pump and stop, go out water pump and adopt the intermittent suction operation by automatic program control by micro-hole aerator, suction frequency adjustable, and regularly recoil.
The catalytic oxidation tower of described method (3) is the electric Fenton Fenton reaction unit of improvement, method is for being filled into waste iron filing and gac or coke in the catalytic oxidation tower according to known ratio and structure, and the anodic-cathodic plate is set in the interior both sides of filler, apply 12~24V volts DS electrostatic field at battery lead plate, excite Fenton Fenton reaction, the while aeration also adds industrial hydrogen peroxide, forms the synergistic effect of little electrolysis and Fenton's reaction.
[embodiment 2]
Be used for municipal wastes transhipment station percolate and handle and reuse method, comprise following method:
(1) percolate of rubbish compression generation enters the water storage well, promotes through lift pump and enters equalizing tank;
(2) carry out aerobic reaction through entering one-level MBR after the anaerobic digestion;
(3) one-level MBR water outlet inflow catalytic oxidation tower carries out catalytic oxidation, finishes the degraded of organism and ammonia nitrogen.
Water outlet average COD≤the 60mg/L of garbage transfer station percolate after this combination process is handled, NH
3-N≤2mg/L, water quality can reach the GB18918-2002 first discharge standard.
Wherein:
The anaerobic technique of described method (2) adopts anaerobic reactors such as upflow anaerobic sludge blanket reactor UASB, anaerobic reactor EGSB, acidication; The startup of reactor and domestication are carried out simultaneously, and the initial start stage flooding quantity is less, and flooding quantity increases gradually subsequently, until reaching the reactor design flooding quantity.
Described method (3) one-level MBR is interior circulating membrane bioreactor, is provided with hollow fiber film assembly in the reactor, by membrane module microorganism is held back, and the microorganism of holding back carries out biochemical degradation to organic pollutant and ammonia nitrogen; The liquid level of reactor is regulated by the interlock of automatic level controller and intake pump, the air that is provided by blower fan carries out aeration by micro-hole aerator, is controlled out opening of water pump and is stopped by automatic program control, goes out water pump and adopts the intermittent suction operation, suction frequency adjustable, and regularly recoil.
The catalytic oxidation tower of described method (3) is the electric Fenton Fenton reaction unit of improvement, method is for being filled into waste iron filing and gac or coke in the catalytic oxidation tower according to known ratio and structure, and the anodic-cathodic plate is set in the interior both sides of filler, apply 12~24V volts DS electrostatic field at battery lead plate, excite Fenton Fenton reaction, the while aeration also adds industrial hydrogen peroxide, forms the synergistic effect of little electrolysis and Fenton's reaction.
[embodiment 3]
Be used for municipal wastes transhipment station percolate and handle and reuse method, comprise following method:
(1) percolate of rubbish compression generation enters the water storage well, promotes through lift pump and enters equalizing tank;
(2) carry out aerobic reaction through entering one-level MBR after the anaerobic digestion, finish the degraded of organism and ammonia nitrogen.
The garbage transfer station percolate is effluent quality COD≤150mg/L after this combination process is handled, NH
3-N≤20mg/L, water quality can reach three grades of emission standards of GB18918-2002.
Wherein:
The anaerobic technique of described method (2) adopts anaerobic reactors such as upflow anaerobic sludge blanket reactor UASB, anaerobic reactor EGSB, acidication; The startup of reactor and domestication are carried out simultaneously, and the initial start stage flooding quantity is less, and flooding quantity increases gradually subsequently, until reaching the reactor design flooding quantity.
The above only is preferred embodiment of the present invention, and all equalizations of being done according to claim scope of the present invention change and modify, and all should belong to the covering scope of claim of the present invention.