CN102976485B - Method and device for fast cultivation of anaerobic granular sludge for treating swine wastewater - Google Patents
Method and device for fast cultivation of anaerobic granular sludge for treating swine wastewater Download PDFInfo
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Abstract
The invention discloses a method and device for fast cultivation of anaerobic granular sludge for treating swine wastewater. The method is characterized by comprising the steps of: firstly, completely soaking deactivated cation exchange resin by using a sodium hydroxide solution with the mass concentration of 3-5% for 5-6h, washing the soaked cation exchange resin to be neutral by using water, and then, completely soaking the neutral cation exchange resin for 5-6h by using hydrochloric acid with the mass concentration of 5% to complete the regeneration of the strong-acid type cation exchange resin. Before the diluted swine wastewater is added into an anaerobic cultivation device, the regenerated strong-acid type cation exchange resin is put in the anaerobic cultivation device, and by means of controlling the temperature, alkalinity, pH value and the like inside the anaerobic cultivation device to gradually increase influent concentration, reduce hydraulic retention time and the like, the anaerobic granular sludge with good settling property is obtained when the chemical oxygen demand (COD) removal rate of effluent of the anaerobic cultivation device is 80-90%. Cultivated strains are stable in property, and the anaerobic granular sludge is quick in maturity, high in activity and short in cultivation period. The device is reasonable in structure and convenient to operate.
Description
Technical field
The invention belongs to the biological wastewater treatment technology field, is raise pigs anaerobic grain sludge fast culture process and the device thereof of waste water of a kind of processing.
Background technology
The anaerobism wastewater treatment can be used as the core technology of environment protection, energy recovery and the system ensemble that well ecological circulation combines; but in anaerobic reactor, microorganism is comparatively responsive to toxic substance; reactor endoparticle sludge activity is vulnerable to ectocine and loses activity, and causes reactor for treatment waste water effect to descend.Therefore, turning out anaerobic grain sludge preferably is the key that improves the anaerobic reactor treatment effect.The microorganism species that can participate in anaerobic grain sludge decomposing complicated organism, generating methane comprises hydrolysed ferment bacterium, hydrogen-producing acetogens and methanogen.These functional floras are grown, are bred in anaerobic grain sludge, various bacterium syntrophism alternates, and mycelia is staggered to mutually combine, and forms complicated flora structure, has also increased the complicacy that the composition of the microorganism is identified simultaneously.China disclosure of the invention (bulletin) number: CN102557248A discloses " a kind of method of anaerobic grain sludge fast culture ", it can make broken granule sludge again form fast anaerobic grain sludge by add cationic polyacrylamide in anaerobic reactor, the weak point of the method is, need in anaerobic reactor, add microbial flocculant, external environment is large on the granule sludge activity impact, and technical requirements is higher, be not easy to operation.
Summary of the invention
The objective of the invention is, overcome the deficiency of prior art, the anaerobic grain sludge fast culture process that provides a kind of processing to raise pigs waste water, the bacterial classification stable performance that it is turned out, anaerobic grain sludge is ripe fast, active high, and culture cycle is short.And provide rational in infrastructure, the raise pigs anaerobic grain sludge fast culture device of waste water of convenient operation, wield processing.
The raise pigs anaerobic grain sludge fast culture process of waste water of a kind of processing, is characterized in that, it comprises the following steps:
(1) strongly acidic cation-exchange regeneration
Get the Zeo-karb of inactivation, be fully immersed in sodium hydroxide solution 5 ~ 6 hours, the Zeo-karb volume of described inactivation and sodium hydroxide solution volume ratio are 1 ~ 1.3:100, the sodium hydroxide solution mass concentration is 3% ~ 5%, the Zeo-karb of inactivation is after soaking with sodium hydroxide, being deposited to bottom in the sodium hydroxide solution storage tank separates and enters in the distilled water storage tank, distilled water is washed till neutrality by the Zeo-karb after sodium hydroxide solution soaks, and described neutral ion exchange resin volume and distilled water volume ratio are 1 ~ 1.3:100; During the neutral ion exchange resin is deposited to the bottom separation and enters hydrochloric acid tank in the distillation water pot, with hydrochloric acid by neutral ion exchange resin submergence 5 ~ 6 hours, the neutral ion exchange resin is made the transition into to strongly acidic cation-exchange, complete the regenerative process of the Zeo-karb of inactivation to strongly acidic cation-exchange, described strongly acidic cation-exchange volume is 1 ~ 1.3:100 with the ratio of hydrochloric acid volume, and the hydrochloric acid mass concentration is 5%; Complete the strongly acidic cation-exchange of regenerative process in the hydrochloric acid tank bottom is separated and entered the ion exchange resin storage tank of regeneration, by regulating the tank bottom by-pass valve control, to complete the strongly acidic cation-exchange input anaerobic culture device bottom of regeneration, described strongly acidic cation-exchange and the anaerobic culture device volume ratio that completes regeneration is 0.125 ~ 0.25:100;
(2) anaerobic grain sludge is cultivated
The water inlet radiator valve is controlled the interior temperature of anaerobic culture device at 30 ~ 35 ℃, the pH value is 7, influent alkalinity is 1000 milligrams every liter, measure COD based on potassium dichromate process in standard GB/T 11914-89, measuring the initial COD concentration of the waste water of raising pigs is 5000 ~ 6000 milligrams every liter, by initial wastewater dilution to the COD value of raising pigs, be 500 ~ 1200 milligrams every liter, the waste water of raising pigs of described dilution is by initially raise pigs waste water and distilled water volume ratio 1:4 ~ 9 dilutions, the waste water of raising pigs after dilution is injected to anaerobic culture device, seed sludge in anaerobic culture device is carried out to the static domestication of initial stage that hydraulic detention time is 12 ~ 14 hours, make it better to adapt to the waste water quality of raising pigs, when in anaerobic culture device, pig waste water COD clearance reaches 80% ~ 90%, the seed sludge domestication finishes, and described seed sludge volume and anaerobic culture device volume ratio are 1:10 ~ 12, in the anaerobic grain sludge forming process, anaerobic culture device bottom mud engenders the granular sludge that particle diameter is less, the mud bed formed accounts for 1/4th of culture apparatus volume, the Granular sludge formation stage adopts shunting, gradient improves influent concentration, the anaerobic culture device inlet COD concentration is controlled between 700 ~ 1700 milligrams every liter, progressively improve hydraulic load, reduce hydraulic detention time and remain on 6 ~ 8 hours, when mensuration anaerobic culture device effluent COD concentration is reduced between 70 ~ 340 milligrams every liter, be that water outlet COD clearance is while reaching 80% ~ 90%, the anaerobic grain sludge formation stages finishes, in the anaerobic grain sludge ripening process, in anaerobic culture device in the mud bed, large particulate state mud has appearred, granularity is between 3 ~ 5 millimeters, mud bed thickening, account for culture apparatus volume 1/3rd, the anaerobic grain sludge stage of maturity is raised pigs influent waste water COD value stabilization at 900 ~ 2200 milligrams every liter, and when in anaerobic culture device, water outlet COD clearance reaches 80% ~ 90%, anaerobic grain sludge has been cultivated, three processes of described cultivation anaerobic grain sludge, be static domestication process of mud initial stage, anaerobic grain sludge forming process and anaerobic grain sludge ripening process, all, to the strong acid ion exchange resin that has added regeneration in anaerobic culture device, the strongly acidic cation-exchange volume and the anaerobic culture device volume ratio that have added regeneration are 0.125 ~ 0.25:100.
The strongly acidic cation-exchange particle diameter that completes regeneration of described step (1) is 0.315 ~ 1.250 millimeter.
The strongly acidic cation-exchange that completes regeneration of described step (1) and anaerobic culture device volume ratio are 0.2:100.
The Zeo-karb volume of the inactivation of described step (1) is 1:100 with the ratio of sodium hydroxide volume.
The neutral ion exchange resin volume of described step (1) is 1:100 with the ratio of distilled water.
The strongly acidic cation-exchange volume of described step (1) is 1:100 with the ratio of hydrochloric acid volume.
The hydraulic detention time of described step (2) is 7 hours.
The influent waste water concentration of raising pigs of described step (2) improves gradient by formula C=1.35
nCs, wherein n means in culturing process that influent concentration improves number of times, every liter of Cs(milligram) mean after dilution to raise pigs waste strength, every liter of C(milligram) mean influent concentration in culturing process.
The seed sludge volume of described step (2) and anaerobic culture device volume ratio are 1:10.
The raise pigs anaerobic grain sludge fast culture device of waste water of a kind of processing, it is characterized in that, it comprises: the sodium hydroxide tank bottom is connected by pipeline with the distilled water tank top, the distilled water tank bottom is connected by pipeline with the hydrochloric acid tank top, the hydrochloric acid tank bottom is connected by pipeline with the strongly acidic cation-exchange tank top that completes regeneration, the strongly acidic cation-exchange tank bottom that completes regeneration is connected by pipeline with the anaerobic culture device top, be equipped with seperating vale on pipeline, complete the strongly acidic cation-exchange tank bottom export pipeline access anaerobic culture device bottom of regeneration, contain the waste water of raising pigs in the function water tank, the submersible pump arranged in the function water tank is communicated with water tank inlet by pipeline, and the function water tank is outside to be connected with thermostatically-controlled equipment, upper and lower end at the water tank inlet sidewall is provided with the pipeline that makes the water cycle in water tank inlet, be provided with bottom control valve and top control valve on pipeline, be provided with impeller pump on the pipeline between bottom control valve and top control valve, water tank inlet is outside to be connected with thermostatically-controlled equipment, the outlet pipeline of water tank inlet bottom is connected with the suction culvert of several anaerobic culture devices bottom, and the anaerobic culture device top is provided with outlet pipeline.
At first the present invention soaks the Zeo-karb of inactivation 5 ~ 6 hours with sodium hydroxide solution fully, and the Zeo-karb volume of described inactivation and sodium hydroxide solution volume ratio are 1 ~ 1.3:100, and the sodium hydroxide solution mass concentration is 3% ~ 5%; The Zeo-karb of inactivation is after soaking with sodium hydroxide, be deposited to bottom and separate in the sodium hydroxide solution storage tank and enter in the distilled water storage tank, distilled water is washed till neutrality by the Zeo-karb after soaking with sodium hydroxide, and described neutral ion exchange resin volume and distilled water volume ratio are 1 ~ 1.3:100; The neutral ion exchange resin is in distillation is deposited to bottom in water pot and separates and enter hydrochloric acid tank, hydrochloric acid was by neutral ion exchange resin submergence 5 ~ 6 hours, the neutral ion exchange resin is made the transition into to strongly acidic cation-exchange, complete the regenerative process of the Zeo-karb of inactivation to strongly acidic cation-exchange, described strongly acidic cation-exchange volume is 1 ~ 1.3:100 with the ratio of hydrochloric acid volume, and the hydrochloric acid mass concentration is 5%; The strongly acidic cation-exchange that completes regeneration is in the hydrochloric acid tank bottom and in separating and entering the ion exchange resin storage tank of having preserved regeneration, preserved the resin storage tank bottom by-pass valve control of regeneration by adjusting, the ion exchange resin that completes regeneration has been delivered to the anaerobic culture device bottom; In the domestication stage at mud initial stage, the waste strength of raising pigs in anaerobic culture device is controlled at 500 ~ 1200 milligrams every liter, temperature remains on 30 ~ 35 ℃, cultivate three processes of anaerobic grain sludge by improving gradually influent concentration, reduce the means such as hydraulic detention time to 6 ~ 8 hour, make anaerobic grain sludge ripening process influent COD value stabilization at 900 ~ 2200 milligrams every liter, when culture apparatus water outlet COD clearance reaches 80% ~ 90%, show that anaerobic grain sludge cultivates successfully; Need to have the kernel adhered in the anaerobic grain sludge forming process, the present invention adds strongly acidic cation-exchange wherein, and its inner macroporous type reticulated structure can effectively be assembled mud, makes it form fast particulate state and shortens culture cycle simultaneously; Adopt the gradient water intake mode, tame process, Granular sludge formation process and granule sludge ripening process according to formula C=1.35 at the mud initial stage respectively
nThe change in concentration rule of Cs improves the influent waste water concentration of raising pigs, and wherein n means that in culturing process, water inlet improves number of times, every liter of Cs(milligram) mean after dilution to raise pigs waste strength, every liter of C(milligram) mean influent concentration in culturing process; The waste water of raising pigs in the function water tank pumps in water tank inlet by submersible pump, and impeller pump is established in the water tank inlet left side, by the control valve of regulating the impeller pump two ends, makes the waste water of raising pigs that enters water tank inlet keep water quality even; Adopt the gradient water intake mode effectively to activate and cultivate the interior microorganism active of culture apparatus in three processes, play the purpose that shortens the anaerobic grain sludge incubation time; The present invention adopts the waste water of raising pigs to be cultivated anaerobic grain sludge, contrasts by experiment the known waste water of raising pigs and is more suitable for anaerobic grain sludge formation; In the anaerobic grain sludge culturing process, the domestication of mud initial stage completed at 7 days stages, had reached the purpose that floc sludge adapts to the waste water quality of raising pigs.Granular sludge formation stage and granule sludge stage of maturity are by improving influent concentration, increase the means such as hydraulic load, Granular sludge formation and maturation time have greatly been shortened, cultivation through 35 ~ 40 days, in anaerobic culture device, there is obvious macrobead to occur, measure by experiment and find that wherein ripe Activity of Anaerobic Granular Sludges is very large; By in anaerobic culture device, adding strongly acidic cation-exchange, ion exchange principle rationally effectively is applied in the anaerobic grain sludge cultivation, reduced the incubation time of anaerobic grain sludge, improved the activity of Mature anaerobic granular sludge.
Experiment showed, in the anaerobic grain sludge that the present invention cultivates that methanogen is mainly Pasteur produces sarcina methanica, belongs to archeobacteria, the size outward appearance is similar to common bacteria, but cellular constituent is special, particularly the structure on cell walls is comparatively special, is strict anaerobic bacterium.Find that through scanning electron microscopic observation the anaerobic grain sludge that the present invention cultivates relies on ion exchange resin as the nucleation body, the surface porosity porous, on the one hand this porosity characteristic is convenient to methane and is carried in duct, with common anaerobic grain sludge, compares, methane production is large, has improved energy utilization rate; This loose characteristic has guaranteed the activity of anaerobion on the other hand, has improved the shock resistance of anaerobic grain sludge, has greatly shortened the anaerobic grain sludge culture cycle.The present invention is cultivated in the anaerobic biological reactor that ripe anaerobic grain sludge is applied in operation, through operation test in 1 ~ 2 month, find that water outlet COD clearance remains on more than 88.8%, anaerobic reactor is stable, acidifying and the phenomenon such as poisoning do not occur.
Ionizing event occurs by many active groups and forms in the exchangable ion on the ion exchange resin that the present invention adopts in water, the tendency spread in the oriented water of exchangable ion when ion exchange resin is met water, under the effect of concentration diffusion and two kinds of opposing forces of electrostatic attraction, form electrostatic double layer formula structure.Contain a large amount of strong acid groups in storng-acid cation exchange resin, easily in solution, dissociate H
+, the contained negative electricity group of the rear body that dissociates can adsorb other positively charged ions in binding soln, and the macropore resin reticulated structure of ion exchange resin inside has guaranteed cross-linkage of resin intensity.The present invention cultivates strongly acidic cation-exchange regeneration to combine with anaerobic grain sludge, take strongly acidic cation-exchange as carrier, turns out the bacterial classification stable performance, active high Mature anaerobic granular sludge; The bacterial classification stable performance that it is turned out, anaerobic grain sludge is ripe fast, active high, and culture cycle is short.
Raise pigs anaerobic grain sludge fast culture device rational in infrastructure of waste water of processing of the present invention, convenient operation, easily grasp.
The accompanying drawing explanation
Fig. 1 is the raise pigs anaerobic grain sludge fast culture device schematic diagram of waste water of processing of the present invention.
Fig. 2 is anaerobic culture device structural representation in Fig. 1.
In figure: 1 function water tank, 2 water inlet radiator valves, 3 submersible pumps, 4 water tank bearings, 5 first anaerobic culture devices, 6 complete the strongly acidic cation-exchange of regeneration, 7 seed sludges, 8 waste water of raising pigs, 9 second anaerobic culture devices, 11 the 3rd anaerobic culture devices, 12 tap water, 13 the 4th anaerobic culture devices, 15 the 5th anaerobic culture devices, 17 tank brackets, 18 water inlet constant speed control valves, 19 water tank inlets, 20 top control valves, 21 impeller pumps, 22 lower curtate control valves, 23 sodium hydroxide solutions, 24 sodium hydroxide storage tanks, the Zeo-karb of 25 inactivations, 26 distilled water, 27 neutral ion exchange resins, 28 hydrochloric acid, 29 strongly acidic cation-exchange storage tanks, 30 first seperating vales, 31 second seperating vales, 33 the 3rd seperating vales, 35 the 4th seperating vales, 32 hydrochloric acid tanks, 34 distilled water storage tanks, 36 gas extractors.
Embodiment
The invention will be further described below to utilize drawings and Examples.
With reference to Fig. 1 and 2, the raise pigs volume of anaerobic grain sludge fast culture device of waste water of processing of the present invention is 20 liters, seed sludge 7 volumes are 2 liters, the sludge acclimatization stage, Granular sludge formation stage and granule sludge stage of maturity have added strong acid ion exchange resin 6 volumes of regeneration to be 40 milliliters, in 4 liters of sodium hydroxide solutions 23 that the Zeo-karb 25 of the inactivation that is 0.612 millimeter by particle diameter is 3.5% in mass concentration, soak fully 6 hours, by after regulating the 4th seperating vale 35 and soaking in the inactivation Zeo-karb 25 of sodium hydroxide storage tank 24 bottoms is separated to distilled water storage tank 34, with 4 liters of distilled water 26, ion exchange resin is washed till to neutrality, by regulating the 3rd seperating vale 33, the neutral ion exchange resin 27 of distilled water storage tank 34 bottoms is separated in hydrochloric acid tank 32,4 liters of hydrochloric acid 28 that mass concentration is 5% soak neutral ion exchange resin 27 fully, time is 6 hours, obtained the strongly acidic cation-exchange 6 of regeneration and will complete the strongly acidic cation-exchange 6 of regeneration in resin storage tank 29 by regulating the second seperating vale 31, the strongly acidic cation-exchange 6 that will complete regeneration by regulating the first seperating vale 30 is transported to the bottom of anaerobic culture device.
To raise pigs in waste water 8 function of injecting water tanks 1, control the first anaerobic culture device 5, the second anaerobic culture device 9, the 3rd anaerobic culture device 11, the 4th anaerobic culture device 13, the interior pH value of the 5th anaerobic culture device 15 is 6-7, keep entering the first anaerobic culture device 5 by water inlet radiator valve 2, the second anaerobic culture device 9, the 4th anaerobic culture device 13, the 5th anaerobic culture device 15 wastewater temperatures are 32 ℃, being provided with power in function water tank 1 is 70 watts, the AC system submersible pump 3 that lift is 3 meters, the waste water 8 of raising pigs is transported in pipeline by submersible pump 3, the pipeline outlet is connected with water tank inlet 19 tops, water tank inlet 19 left sides are provided with the impeller pump 21 that power is 120 watts, by regulating impeller pump 21 top, two ends control valves 20 and lower curtate control valve 22, make the waste water 8 of raising pigs that enters water tank inlet 19 keep water quality even, maintain in function water tank 1 water temperature at 32 ℃ by water inlet radiator valve 2 simultaneously, water tank inlet 19 bottoms are connected with outlet pipeline, outlet pipeline adopts T-valve to be split into four branch roads, and enter respectively the first anaerobic culture device 5 in the anaerobic culture device bottom, the second anaerobic culture device 9, the 4th anaerobic culture device 13, in the 5th anaerobic culture device 15, the 3rd anaerobic culture device 11 bottoms are connected with running water pipe, installing the top water outlet via anaerobic culture device, the granule sludge waste water COD influent concentration of initially raising pigs after domestication stage dilution is 623 milligrams every liter.The first anaerobic culture device 5, the second anaerobic culture device 9, interior seed sludge 7 domestications of the 5th anaerobic culture device 15 are after 7 days, water outlet COD clearance reaches 87% at first, characterizes the first anaerobic culture device 5, the second anaerobic culture device 9, the interior mud of the 5th anaerobic culture device 15 and completes domestication.Interior seed sludge 7 domestications of the 3rd anaerobic culture device 11 are after 15 days, and water outlet COD clearance reaches 87% at first, characterizes the interior mud of the 3rd anaerobic culture device 11 and completes domestication.Interior seed sludge 7 domestications of the 4th anaerobic culture device 13 are after 20 days, and water outlet COD clearance reaches 87% at first, characterizes the interior mud of the 4th anaerobic culture device 13 and completes domestication; The first anaerobic culture device 5, the second anaerobic culture device 9, the 3rd anaerobic culture device 11, the 4th anaerobic culture device 13, the interior seed sludge 7 of the 5th anaerobic culture device 15 are respectively when the 7th day domestication stage, the 7th day, the 15th day, the 20th day and the 7th day, water outlet COD clearance 87% occurs, characterize sludge acclimatization in anaerobic culture device and complete.
Anaerobic grain sludge formation stages influent concentration is according to formula C=1.35
nCs calculates, 841.05 milligrams every liter of the first anaerobic culture device 5, the second anaerobic culture device 9, the 4th anaerobic culture device 13, the 5th anaerobic culture device 15 influent concentration, and volumetric loading is 4.2 kgCOD (m
3D)
-1, simultaneously to adding strongly acidic cation-exchange 5 in the first anaerobic culture device 5, the second anaerobic culture device 9, the 3rd anaerobic culture device 11, the 5th anaerobic culture device, be 40 milliliters.Reducing hydraulic detention time makes it remain 7 hours, until the first anaerobic culture device 5, the second anaerobic culture device 9, the 3rd anaerobic culture device 11, the 4th anaerobic culture device 13, the 5th anaerobic culture device 15 when stable, measure each anaerobic culture device water outlet COD changing conditions, and observe each anaerobic culture device endoparticle mud formation situation; This stage first anaerobic culture device 5, the second anaerobic culture device 9, the 5th anaerobic culture device 15 operations are after 10 days, water outlet COD clearance reaches 86%, the muddy water demixing phenomenon appears in anaerobic culture device, granule sludge accounts for culture apparatus volume 1/4th, grain color becomes brown by black, and characterizing particles mud formation stages finishes; When the 4th anaerobic culture device 13 moves the 70th day at the anaerobic grain sludge formation stages, water outlet COD clearance reaches 86%, the muddy water demixing phenomenon appears in anaerobic culture device, granule sludge accounts for culture apparatus volume 1/4th, grain color becomes brown by black, and characterizing particles mud formation stages finishes; When the 3rd anaerobic culture device 11 moves the 39th day at the anaerobic grain sludge formation stages, water outlet COD clearance reaches 86%, the muddy water demixing phenomenon appears in anaerobic culture device, granule sludge accounts for culture apparatus volume 1/4th, grain color becomes brown by black, and characterizing particles mud formation stages finishes; The first anaerobic culture device 5, the second anaerobic culture device 9, the 3rd anaerobic culture device 11, the 4th anaerobic culture device 13, the 5th anaerobic culture device 15 are respectively when Granular sludge formation stage running the 10th day, the 10th day, the 39th day, the 70th day and the 10th day, each anaerobic culture device water outlet COD clearance reaches 86%, the muddy water demixing phenomenon all appears in each anaerobic culture device, macrobead mud accounts for culture apparatus volume 1/4th, grain color becomes brown by black, and characterizing particles mud formation stages finishes.
The anaerobic grain sludge stage of maturity is according to formula C=1.35
nCs calculates, continue to improve the first anaerobic culture device 5, the second anaerobic culture device 9, the 4th anaerobic culture device 13, the 5th anaerobic culture device 15 influent concentrations to 1135.41 milligram every liter, with anaerobic grain sludge formation stages operation steps, the first anaerobic culture device 5, the second anaerobic culture device 9, when the 5th anaerobic culture device 15 moves the 20th day in the anaerobic grain sludge stage of maturity, observe the first anaerobic culture device 5, the second anaerobic culture device 9, the 5th anaerobic culture device 15 endoparticle mud 7 forms and water outlet COD value changing conditions, find that three anaerobic culture device endoparticle mud 5 become Vandyke brown by brown, the macrobead mud 7 occurred accounts for 1/3rd of total mud bed, utilizing gas extractor 36 to measure granule sludge methane production in anaerobic culture device is 9.7 mLCH4(gVSSd)
-1, the COD clearance reaches 86%, the 3rd anaerobic culture device 11, the 4th anaerobic culture device 13 are respectively when the ripe cultivation stage of granule sludge the 45th day and the 80th day, occur that granule sludge 7 becomes Vandyke brown by brown, the macrobead mud occurred accounts for 1/3rd of total mud bed, utilizes gas extractor 36 to measure methane production and is respectively 6.4 mLCH4(gVSSd)
-1with 6.6 mLCH4(gVSSd)
-1, the COD clearance reaches 86%, the first anaerobic culture device 5, the second anaerobic culture device 9, the 3rd anaerobic culture device 11, the 4th anaerobic culture device 13, the 5th anaerobic culture device 15 are respectively when granule sludge stage of maturity operation the 20th day, the 20th day, the 45th day, the 80th day and the 20th day, the COD clearance reaches 86%, the muddy water demixing phenomenon all appears in each anaerobic culture device, macrobead mud accounts for culture apparatus volume 1/3rd, grain color becomes Vandyke brown by brown, and the characterizing particles mud stage of maturity finishes.
The first anaerobic culture device 5, the second anaerobic culture device 9, the 3rd anaerobic culture device 11, the 4th anaerobic culture device 13, the 5th anaerobic culture device 15 become Mature anaerobic granular sludge 7 required times by the seed sludge cultivation and are respectively 37 days, 37 days, 99 days, 170 days, 37 days, cultured anaerobic grain sludge 7 is added in the anaerobic biological reactor of operation, when the UASB reactor moves 1.5 months, measure UASB reactor water outlet COD clearance and reach 88.8%, acidifying and intoxicating phenomenon do not appear in anaerobic biological reactor, normal operation.
Claims (1)
1. the processing anaerobic grain sludge fast culture process of waste water of raising pigs, is characterized in that, it comprises the following steps:
(1) strongly acidic cation-exchange regeneration
Get the Zeo-karb of inactivation, be fully immersed in sodium hydroxide solution 5 ~ 6 hours, the Zeo-karb volume of described inactivation and sodium hydroxide solution volume ratio are 1 ~ 1.3:100, the sodium hydroxide solution mass concentration is 3% ~ 5%, the Zeo-karb of inactivation is after soaking with sodium hydroxide, being deposited to bottom in the sodium hydroxide solution storage tank separates and enters in the distilled water storage tank, distilled water is washed till neutrality by the Zeo-karb after sodium hydroxide solution soaks, and neutral ion exchange resin volume and distilled water volume ratio are 1 ~ 1.3:100; During the neutral ion exchange resin is deposited to the bottom separation and enters hydrochloric acid tank in the distilled water storage tank, with hydrochloric acid by neutral ion exchange resin submergence 5 ~ 6 hours, the neutral ion exchange resin is made the transition into to strongly acidic cation-exchange, complete the regenerative process of the Zeo-karb of inactivation to strongly acidic cation-exchange, described strongly acidic cation-exchange volume is 1 ~ 1.3:100 with the ratio of hydrochloric acid volume, and the hydrochloric acid mass concentration is 5%; Complete the strongly acidic cation-exchange of regenerative process in the hydrochloric acid tank bottom is separated and entered the ion exchange resin storage tank of regeneration, by regulating the tank bottom by-pass valve control, to complete the strongly acidic cation-exchange input anaerobic culture device bottom of regeneration, described strongly acidic cation-exchange and the anaerobic culture device volume ratio that completes regeneration is 0.125 ~ 0.25:100;
(2) anaerobic grain sludge is cultivated
The water inlet radiator valve is controlled the interior temperature of anaerobic culture device at 30 ~ 35 ℃, the pH value is 7, influent alkalinity is 1000 milligrams every liter, measure COD based on potassium dichromate process in standard GB/T 11914-89, measuring the initial COD concentration of the waste water of raising pigs is 5000 ~ 6000 milligrams every liter, by initial wastewater dilution to the COD value of raising pigs, be 500 ~ 1200 milligrams every liter, the waste water of raising pigs of dilution is by initially raise pigs waste water and distilled water volume ratio 1:4 ~ 9 dilutions, the waste water of raising pigs after dilution is injected to anaerobic culture device, seed sludge in anaerobic culture device is carried out to the static domestication of initial stage that hydraulic detention time is 12 ~ 14 hours, make it better to adapt to the waste water quality of raising pigs, when the waste water COD clearance of raising pigs in anaerobic culture device reaches 80% ~ 90%, the seed sludge domestication finishes, and described seed sludge volume and anaerobic culture device volume ratio are 1:10 ~ 12, in the anaerobic grain sludge forming process, anaerobic culture device bottom mud engenders the granular sludge that particle diameter is less, the mud bed formed accounts for 1/4th of culture apparatus volume, the Granular sludge formation stage adopts shunting, gradient improves influent concentration, the anaerobic culture device inlet COD concentration is controlled between 700 ~ 1700 milligrams every liter, progressively improve hydraulic load, reduce hydraulic detention time and remain on 6 ~ 8 hours, when mensuration anaerobic culture device effluent COD concentration is reduced between 70 ~ 340 milligrams every liter, be that water outlet COD clearance is while reaching 80% ~ 90%, the anaerobic grain sludge formation stages finishes, in the anaerobic grain sludge ripening process, in anaerobic culture device in the mud bed, large particulate state mud has appearred, granularity is between 3 ~ 5 millimeters, mud bed thickening, account for 1/3rd of culture apparatus volume, the anaerobic grain sludge stage of maturity is raised pigs influent waste water COD value stabilization at 900 ~ 2200 milligrams every liter, and when in anaerobic culture device, water outlet COD clearance reaches 80% ~ 90%, anaerobic grain sludge has been cultivated, three processes of described cultivation anaerobic grain sludge, be static domestication process of mud initial stage, anaerobic grain sludge forming process and anaerobic grain sludge ripening process, all, to the strongly acidic cation-exchange that has added regeneration in anaerobic culture device, the strongly acidic cation-exchange volume and the anaerobic culture device volume ratio that have added regeneration are 0.125 ~ 0.25:100.
2. the processing according to claim 1 anaerobic grain sludge fast culture process of waste water of raising pigs, is characterized in that, the strongly acidic cation-exchange particle diameter that completes regeneration of described step (1) is 0.315 ~ 1.250 millimeter.
3. the processing according to claim 1 anaerobic grain sludge fast culture process of waste water of raising pigs, is characterized in that, the strongly acidic cation-exchange volume that completes regeneration and the anaerobic culture device volume ratio of described step (1) are 0.2:100.
4. the processing according to claim 1 anaerobic grain sludge fast culture process of waste water of raising pigs, is characterized in that, the Zeo-karb volume of the inactivation of described step (1) is 1:100 with the ratio of sodium hydroxide volume.
5. the processing according to claim 1 anaerobic grain sludge fast culture process of waste water of raising pigs, is characterized in that, the neutral ion exchange resin volume of described step (1) is 1:100 with the ratio of distilled water volume.
6. the processing according to claim 1 anaerobic grain sludge fast culture process of waste water of raising pigs, is characterized in that, the strongly acidic cation-exchange volume of described step (1) is 1:100 with the ratio of hydrochloric acid volume.
7. the processing according to claim 1 anaerobic grain sludge fast culture process of waste water of raising pigs, is characterized in that, the hydraulic detention time of the anaerobic grain sludge forming process of described step (2) is 7 hours.
8. the processing according to claim 1 anaerobic grain sludge fast culture process of waste water of raising pigs, is characterized in that, the influent waste water concentration of raising pigs of described step (2) improves gradient by formula C=1.35
nCs, wherein n means that in culturing process, influent concentration improves number of times, the waste strength Cs that raises pigs after meaning to dilute with every liter of milligram, mean influent concentration C in culturing process with every liter of milligram.
9. the processing according to claim 1 anaerobic grain sludge fast culture process of waste water of raising pigs, is characterized in that, the seed sludge volume of described step (2) and anaerobic culture device volume ratio are 1:10.
10. the processing anaerobic grain sludge fast culture device of waste water of raising pigs, it is characterized in that, it comprises: the sodium hydroxide tank bottom is connected by pipeline with the distilled water tank top, the distilled water tank bottom is connected by pipeline with the hydrochloric acid tank top, the hydrochloric acid tank bottom is connected by pipeline with the strongly acidic cation-exchange tank top that completes regeneration, the strongly acidic cation-exchange tank bottom that completes regeneration is connected by pipeline with the anaerobic culture device top, be equipped with seperating vale on pipeline, complete the strongly acidic cation-exchange tank bottom export pipeline access anaerobic culture device bottom of regeneration, contain the waste water of raising pigs in the function water tank, the submersible pump arranged in the function water tank is communicated with water tank inlet by pipeline, and the function water tank is outside to be connected with thermostatically-controlled equipment, upper and lower end at the water tank inlet sidewall is provided with the pipeline that makes the water cycle in water tank inlet, be provided with bottom control valve and top control valve on pipeline, be provided with impeller pump on the pipeline between bottom control valve and top control valve, water tank inlet is outside to be connected with thermostatically-controlled equipment, the outlet pipeline of water tank inlet bottom is connected with the suction culvert of several anaerobic culture devices bottom, and the anaerobic culture device top is provided with outlet pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105243265A CN102976485B (en) | 2012-12-10 | 2012-12-10 | Method and device for fast cultivation of anaerobic granular sludge for treating swine wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012105243265A CN102976485B (en) | 2012-12-10 | 2012-12-10 | Method and device for fast cultivation of anaerobic granular sludge for treating swine wastewater |
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| CA2957375A1 (en) * | 2017-02-08 | 2018-08-08 | Probiosphere Inc. | Additive for wastewater treatment |
| CN108996681B (en) * | 2018-09-30 | 2021-12-07 | 云南天朗环境科技有限公司 | Anaerobic granular sludge and culture method and application thereof |
| CN115385534A (en) * | 2022-09-05 | 2022-11-25 | 同济大学 | A method of using cation exchange resin to strengthen the anaerobic fermentation of excess sludge to produce hydrogen |
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| JP2592341B2 (en) * | 1990-03-20 | 1997-03-19 | 富士写真フイルム株式会社 | Wastewater treatment method |
| CN1583600A (en) * | 2004-05-28 | 2005-02-23 | 清华大学 | Method for preparing granular ammonia oxidative mud with anaerobic bacteria from mixed mud |
| CN1821122A (en) * | 2006-03-09 | 2006-08-23 | 南京大学 | Method for Cultivating Nitrification Granular Sludge Using Anaerobic Granular Sludge |
| CN102557248A (en) * | 2012-01-13 | 2012-07-11 | 西南化工研究设计院 | Method for fast culturing anaerobic granular sludge |
| CN102701445A (en) * | 2012-07-02 | 2012-10-03 | 哈尔滨工业大学 | Normal-temperature starting domestication method for anaerobic ammoxidation reactor with low-dissolved-oxygen inflow water |
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| JPH10180289A (en) * | 1996-12-25 | 1998-07-07 | Kurita Water Ind Ltd | Anaerobic treatment equipment |
| US7537693B2 (en) * | 2007-05-07 | 2009-05-26 | Zhao Joe R H | Up-flow multi-stage anaerobic reactor (UMAR) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2592341B2 (en) * | 1990-03-20 | 1997-03-19 | 富士写真フイルム株式会社 | Wastewater treatment method |
| CN1583600A (en) * | 2004-05-28 | 2005-02-23 | 清华大学 | Method for preparing granular ammonia oxidative mud with anaerobic bacteria from mixed mud |
| CN1821122A (en) * | 2006-03-09 | 2006-08-23 | 南京大学 | Method for Cultivating Nitrification Granular Sludge Using Anaerobic Granular Sludge |
| CN102557248A (en) * | 2012-01-13 | 2012-07-11 | 西南化工研究设计院 | Method for fast culturing anaerobic granular sludge |
| CN102701445A (en) * | 2012-07-02 | 2012-10-03 | 哈尔滨工业大学 | Normal-temperature starting domestication method for anaerobic ammoxidation reactor with low-dissolved-oxygen inflow water |
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