CN105645710A - Method for sludge reduction by using compound microbial preparation - Google Patents
Method for sludge reduction by using compound microbial preparation Download PDFInfo
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- CN105645710A CN105645710A CN201410667690.6A CN201410667690A CN105645710A CN 105645710 A CN105645710 A CN 105645710A CN 201410667690 A CN201410667690 A CN 201410667690A CN 105645710 A CN105645710 A CN 105645710A
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Abstract
The invention discloses a method for sludge reduction by using a compound microbial preparation; the compound microbial preparation with the initial concentration of 0.01-0.02% of the processing capacity of a biochemical pond is added in the biochemical pond. The method has the beneficial effects that the compound microbial preparation is directly added in the biochemical pond, sludge source reduction is performed by microorganisms, the microbial characteristics of high efficiency, low consumption, multiple functions and self reproduction are fully played, the processing effect is improved, the cost is lower, and sludge effective reduction can be realized.
Description
Technical field
The present invention relates to technical field of bioengineering, concrete relate to a kind of method of utilizing complex microorganism preparations to carry out mud decrement.
Background technology
City domestic sewage is administered has become the focus receiving much attention in environmental protection. Wherein activated sludge process is most widely used biologic treating technique in municipal sewage and industrial effluent treatment plant in the world at present, but its a maximum drawback is exactly that sludge yield is large. Owing to containing heavy metal and pathogen in mud, people and biological health are produced to danger evil, limited the soil utilization of mud, and usable land is also reducing gradually, the final disposal of mud is more and more difficult, and this makes people start to pay attention to reducing the treatment process of sludge yield. Optimal method is in sewage disposal process, can reduce the output of mud simultaneously, and don't affects the effect of technique.
The decrement research of the excess sludge that biological wastewater treatment produces mainly concentrates on 2 aspects: (1) processes (microwave treatment etc.) to the excess sludge having produced, after mud is liquefied, turn back to biochemistry pool again and further process, (2) reduce sludge yield (enhanced biological metabolism, uncoupling etc.) in biological wastewater treatment process. Current Sludge Reduction Technologies is mainly based on three class action principles, one class is the Sludge Reduction Technologies based on cytolysis (or decomposition) recessive growth, first wet mud is carried out to machinery, chemistry, a hot chemistry, biological oxidation, the broken mud flco that decomposes, promote microbial cell to dissolve, make organic carbon in organism as the substrate of microorganism and repeat metabolism, the recessive growth that utilizes cell lysates to carry out; Equations of The Second Kind principle is the quantity of bacterium predator in increase system, is the sludge reduction technology that the food chain principle in imitated natural ecosystem is carried out; Also having a class is to adopt chemistry or biological method to promote uncoupling metabolism, causes energy leakage, thereby makes biological growth decrease in efficiency.
Low etc. are reported in laboratory scale activated Sludge System, when the generation that adds people's p-nitrophenol (PNP) artifact amount can reduce 49%. The people such as Strand find mud through long-term domestication and adapt to, finally make uncoupler cannot reduce sludge yield. Abbassi etc. have carried out lab scale research to high concentration dissolved oxygen and sludge yield relation, result shows: the concentration that increases oxygen can improve the deep diffusion of oxygen, so that the expansion in the inner aerobic region of mud flco, unhydrolysed biomass can be by aerobic degradation in flco, thereby sludge quantity is reduced. CoPP and Dofd report, compared with aerobic condition, the mud rate of increase has under anaerobic reduced by 38%. Peng etc. have also reported in biosystem that, in the time there is anaerobic denitrifying, sludge yield reduces. People's reported first such as westggartll in high-efficiency activated mud technique, insert anaerobic digestion section and can reduce the excess sludge production of half. Mason and Hame adopt and mix thermophilic bacteria population, have studied the suitableeest digestion condition of cell lysates. The sludge yield scope of sludge aerobic thermophilic digestion is 0.05 one 0.13kgTs/kgCOD, but its investment and operating cost are high. The people such as Neis have compared the efficiency of ultrasonic wave lignin-sludge zoogloea destructing under different frequency. The propositions such as the H.Yasui of Japan utilize the strong oxidizer of ozone, occur directly or indirectly to react with the compound in mud, destroy cell membrane, discharge cytoplasm, also become water-soluble little Molecular fragments to carry out mud decrement water-fast large molecular breakdown simultaneously. The robot systems such as Svensson have been studied the method for supercritical water oxidation mud, under the pressure of 374 DEG C of temperature and 22.IMPa, the all organic matters of composition evenly, in same nature mud are almost all degraded, and mud after treatment reuse again, reaches substantially without mud discharging. But supercritical water oxidation method needs high temperature, condition of high voltage, the anticorrosion of equipment is had relatively high expectations. The BIOCOPE of a u s company report utilizes the enzyme solutions of their exploitations, processed conventionally dissolved oxygen can be reduced to 0.8～1.2mg/l, and MLss is 4500-8500mg/l simultaneously, sludge age is 30-70d, there is no operation problem, reduce sludge yield 50%, cancelled sludge digestion equipment. The precious loyal submerged biofilm New Technology about Wastewater Treatment that waits exploitation of the king of HarBin Building University, adopt fixed carrier filler, increase protozoan and the metazoa quantity in aeration tank, effectively reduced the output of excess sludge, it is only 1,/10 one 1/5 of conventional activated sludge method that lab scale is determined its excess sludge production. The employing two-stage methods such as Ratsak have carried out the lab scale research of infusorian, predator bacteria, have found its organism generation than the minimizing that there is no an infusorian and prey on 12%～43%. A COHOHydrOCleanSA of basic environment microorganism company of Switzerland utilizes the outer dissimilar sewage of microbiological treatment of throwing, and its sewage treatment plant can reduce by 16% hyperplasia sludge quantity. A kind of complex microorganism preparations for materialized mud processing has been invented by Shijiazhuang Development Zone Desai Chemical Co., Ltd, preparation comprises the microorganism species such as photosynthetic bacteria group, lactobacillus, saccharomyces cerevisiae, Gram positive actinomycetes group, improve the physics and chemistry state of mud, and then impel materialized mud minimizing, stabilisation and innoxious. The PM-I mud decrement microorganism formulation of Shanghai Zhenwei Environment Engineering Co., Ltd.'s invention is a kind of complex microorganism preparations for city domestic sewage and Industrial Wastewater Treatment mud decrement, wherein contains photosynthetic bacteria group, yeast flora, lactobacillus, Propionibacterium group, fungi, actinomycete group etc. multiple to people, animal, the useful and harmless microorganism of plant. Current most mud source Decrement Technique imperfection and maturation technically, or accommodation is little, or do not possess economic serviceability, fail preferably in sewage treatment plant's application, in the urgent need to developing the new technology efficient, adaptability is good. Utilize microorganism to carry out mud source decrement; give full play to the characteristic of efficient, low consumption, multipotency and the self-reproduction of microorganism; develop a kind of efficient, low consumption, energy-saving sludge source Decrement Technique and realize commercial Application; to greatly promote that China's municipal sewage treatment realizes sustainable development, the saving of protection of the environment and water resource and utilization better.
Summary of the invention
The object of the invention is to effectively overcome the deficiency of above-mentioned technology, a kind of method of utilizing complex microorganism preparations to carry out mud decrement is provided, directly in biochemistry pool, add complex microorganism preparations, utilize microorganism to carry out mud source decrement, give full play to the characteristic of efficient, low consumption, multipotency and the self-reproduction of microorganism, improved treatment effect, and cost is lower, can realizes effectively subduing of mud.
Technical scheme of the present invention is achieved in that a kind of method of utilizing complex microorganism preparations to carry out mud decrement, and in biochemistry pool, adding initial concentration is the complex microorganism preparations of biochemistry pool processing volume 0.1-0.2 ‰.
In above-mentioned steps, described complex microorganism preparations percentage by weight is: saccharomycete 8%, actinomyces 7%, Bacillus acidi lactici 10%, Plesiomonas 2%, pseudomonas 3%, enterobacteria belongs to 2%, Bacillus cercus 5%, bacillus subtilis 8%, acinetobacter calcoaceticus 5%, brevibacterium 2%, Micrococcus 2%, Flavobacterium 3%, Plesiomonas 2%, streptococcus 3%, Klebsiella 3%, Arthrobacter 3%, bacillus 5%, streptococcus 3%, pseudomonas aeruginosa 2%, Pseudomonas fluorescens 5%, Nitrobacter 5%, Nitrosococcus 5%, Nitromonas 5%, Alcaligenes 2%.
In above-mentioned steps, described complex microorganism preparations is that above-mentioned each bacterial classification is inoculated in the fermentation tank that fermentation medium 1L is housed according to percentage after liquid spreads cultivation, and inoculum concentration is 5%-20%, and cultivation temperature is 30 DEG C, adopt to stir to ensure dissolved oxygen, when viable count reaches 109When above, obtain this complex microorganism preparations.
In above-mentioned steps, described fermentation medium 1L comprises corn flour 2.0%, brown sugar 0.5%, beancake powder or fish meal 0.5%, CaCO30.5%, (NH4) 2SO40.1%, K2HPO40.03%, MgSO4.7H2O0.02% and MnSO4.H2O0.02%.
In above-mentioned steps, the dosage of described complex microorganism preparations is: in biochemistry pool, adding initial concentration is the complex microorganism preparations of biochemistry pool processing volume 0.1-0.2 ‰.
Beneficial effect of the present invention is: a kind of method of utilizing complex microorganism preparations to carry out mud decrement provided by the invention, directly in biochemistry pool, add complex microorganism preparations, this complex microorganism preparations is the complex micro organism fungicide through special screening and cultivation, after adding, in itself and sewage disposal system between original microbial population by selective and competitive growth and reproduction, realize the rearrangement of kind of group relation, form new dominant microflora, thereby increase kind and the concentration of high-effective microorganism in sewage disposal system, suppress the growth of unfavorable bacterium and " useless bacterium ", Sludge Property and metabolic activity are improved, promote organic pollution decompose and dead microbial cells is constantly decomposed again, the generation of excess sludge is significantly reduced, reduce follow-up excess sludge processing, realize and control sewage treatment plant residual sludge creation amount from source. and the strengthening process of complex micro organism fungicide only changes the constitute and function of the microorganism of activated sludge, do not change technique and the service condition of sewage treatment plant, there is good adaptive capacity, be the developing direction of excess sludge source Decrement Technique. the present invention has simplified the change to treatment process, has not only improved treatment effect, and cost is lower, can realize effectively subduing of mud.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described.
This example carries out by the following method.
Sewage treatment plant of Fushun City, this factory's overall design scale is 250000m3/d, adopts SBR method DAT-IAT (DemandAerationTank-Inter-mittentAerationTank) secondary biochemical treatment technique. Main Fushun City's city domestic sewage and the trade effluent except 20 large enterprises such as second branch factory of oil, ethylene plant, Acrylic Fibers Plant received, sanitary sewage accounts for 70%, and trade effluent accounts for 30%.
The water quality index that enters biochemical system is as follows:
CODcr：290mg/L
BOD5：75mg/L
Ammonia nitrogen: 20mg/L
SS：60mg/L
The dosage of complex microorganism preparations: the 0.1-0.2 ‰ that accounts for biochemistry pool volume.
In biochemistry pool, adding initial concentration is the complex microorganism preparations of biochemistry pool processing volume 0.1-0.2 ‰.
Complex microorganism preparations percentage by weight is: saccharomycete 8%, actinomyces 7%, Bacillus acidi lactici 10%, Plesiomonas 2%, pseudomonas 3%, enterobacteria belongs to 2%, Bacillus cercus 5%, bacillus subtilis 8%, acinetobacter calcoaceticus 5%, brevibacterium 2%, Micrococcus 2%, Flavobacterium 3%, Plesiomonas 2%, streptococcus 3%, Klebsiella 3%, Arthrobacter 3%, bacillus 5%, streptococcus 3%, pseudomonas aeruginosa 2%, Pseudomonas fluorescens 5%, Nitrobacter 5%, Nitrosococcus 5%, Nitromonas 5%, Alcaligenes 2%.
Complex microorganism preparations is that above-mentioned each bacterial classification is inoculated in the fermentation tank that fermentation medium 1L is housed according to percentage after liquid spreads cultivation, and inoculum concentration is 5%-20%, and cultivation temperature is 30 DEG C, adopts to stir to ensure dissolved oxygen, when viable count reaches 109When above, obtain this complex microorganism preparations. Wherein above-mentioned bacterial classification all can be buied from Chinese common micro-organisms culture presevation administrative center. Fermentation medium 1L comprises corn flour 2.0%, brown sugar 0.5%, beancake powder or fish meal 0.5%, CaCO30.5%, (NH4) 2SO40.1%, K2HPO40.03%, MgSO4.7H2O0.02% and MnSO4.H2O0.02%.
Disposable adding, after system stable operation, effluent quality index is:
CODcr：50mg/L
BOD5：15mg/L
Ammonia nitrogen: 5mg/L
SS：10mg/L
After adding for the first time two weeks, add once again according to 0.05 ‰ of biochemistry pool processing volume, monthly add according to 0.05 ‰ later, mud decrement is stabilized in 20%-30%. If calculated by 10,000 tons of water generates 5-8 ton mud of every processing, sewage treatment plant's every day, 200,000 tons of water, produced mud 100-160 ton, and disposal costs is with 300 yuan/ton of calculating, and daily rate is in 30000-48000 unit, 1,095 ten thousand yuan-1,752 ten thousand yuan/year. Can reduce excess sludge 30% with Sludge Reduction Technologies processing and calculate, can be enterprise and save ten thousand yuan/year of 329-526.
Described above is only preferred embodiment of the present invention, and above-mentioned specific embodiment is not limitation of the present invention. In technological thought category of the present invention, can there is various distortion and amendment, retouching that all those of ordinary skill in the art make according to above description, revise or be equal to replacement, all belong to the scope that the present invention protects.
Claims (5)
1. utilize complex microorganism preparations to carry out a method for mud decrement, it is characterized in that: at biochemistry poolIn add the complex microorganism preparations that initial concentration is biochemistry pool processing volume 0.1-0.2 ‰.
2. a kind of method of utilizing complex microorganism preparations to carry out mud decrement according to claim 1,It is characterized in that: described complex microorganism preparations percentage by weight is: saccharomycete 8%, actinomyces 7%, breastAcidfast bacilli 10%, Plesiomonas 2%, pseudomonas 3%, enterobacteria belong to 2%, Bacillus cercus 5%,Bacillus subtilis 8%, acinetobacter calcoaceticus 5%, brevibacterium 2%, Micrococcus 2%, Flavobacterium3%, Plesiomonas 2%, streptococcus 3%, Klebsiella 3%, Arthrobacter 3%, bacillus 5%,Streptococcus 3%, pseudomonas aeruginosa 2%, Pseudomonas fluorescens 5%, Nitrobacter 5%, Nitrosococcus5%, Nitromonas 5%, Alcaligenes 2%.
3. a kind of method of utilizing complex microorganism preparations to carry out mud decrement according to claim 2,It is characterized in that: described complex microorganism preparations be by above-mentioned each bacterial classification after liquid spreads cultivation according to percentageBe inoculated in the fermentation tank that fermentation medium 1L is housed, inoculum concentration is 5%-20%, and cultivation temperature is 30 DEG C,Adopt to stir to ensure dissolved oxygen, when viable count reaches 109When above, obtain this complex microorganism preparations.
4. a kind of method of utilizing complex microorganism preparations to carry out mud decrement according to claim 3,It is characterized in that: described fermentation medium 1L comprises corn flour 2.0%, brown sugar 0.5%, beancake powder or fishPowder 0.5%, CaCO30.5%, (NH4) 2SO40.1%, K2HPO40.03%, MgSO4.7H2O0.02% andMnSO4.H2O0.02％。
5. a kind of method of utilizing complex microorganism preparations to carry out mud decrement according to claim 1,It is characterized in that: the dosage of described complex microorganism preparations is: in biochemistry pool, adding initial concentration isThe complex microorganism preparations of biochemistry pool processing volume 0.1-0.2 ‰.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106082532A (en) * | 2016-06-22 | 2016-11-09 | 内蒙古阜丰生物科技有限公司 | For processing the preparation method of the biochemical preparation of Threonine Fermentation waste water |
| CN106145586A (en) * | 2016-08-02 | 2016-11-23 | 长兴瑷晟环保科技有限公司 | A kind of biological modified method of deeply dehydrating sludge |
| CN106520632A (en) * | 2016-12-14 | 2017-03-22 | 潍坊金原微生物肥料有限公司 | Production method of microorganism bacterium agent for waste purification |
| CN107759042A (en) * | 2016-08-19 | 2018-03-06 | 辽宁惠源生物环保科技有限公司 | A kind of complex micro organism fungicide for mud decrement and preparation method thereof |
| CN108585224A (en) * | 2018-05-21 | 2018-09-28 | 山东省农业科学院农业资源与环境研究所 | A method of using complex micro organism fungicide treated sewage and being reduced sludge generation |
| CN109321483A (en) * | 2017-07-31 | 2019-02-12 | 广东中微环保生物科技有限公司 | A kind of liquid high-density fermentation process of environmentally friendly complex micro organism fungicide |
| CN110144314A (en) * | 2019-05-30 | 2019-08-20 | 广东子辉生态环境科技有限公司 | It is a kind of for repairing the large-scale method for producing of the Tiny ecosystem flora of black and odorous water |
| CN110317737A (en) * | 2019-05-28 | 2019-10-11 | 广东子辉生态环境科技有限公司 | Compound EM microorganism formulation, preparation method and application method |
| CN110395862A (en) * | 2019-07-22 | 2019-11-01 | 常德职业技术学院 | A method of sludge is handled using complex micro organism fungicide |
| CN110467324A (en) * | 2019-05-29 | 2019-11-19 | 常州大学 | A kind of method of novel photosynthetic bacteria solid matrix heavy metal biological toxicity in reducing printing and dyeing sludge |
| CN111471595A (en) * | 2020-04-17 | 2020-07-31 | 北京志能祥赢节能环保科技股份有限公司 | Separation and screening method of sludge source decrement strain |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106082532A (en) * | 2016-06-22 | 2016-11-09 | 内蒙古阜丰生物科技有限公司 | For processing the preparation method of the biochemical preparation of Threonine Fermentation waste water |
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| CN106145586B (en) * | 2016-08-02 | 2019-03-01 | 长兴瑷晟环保科技有限公司 | A kind of biological modified method of deeply dehydrating sludge |
| CN107759042A (en) * | 2016-08-19 | 2018-03-06 | 辽宁惠源生物环保科技有限公司 | A kind of complex micro organism fungicide for mud decrement and preparation method thereof |
| CN106520632A (en) * | 2016-12-14 | 2017-03-22 | 潍坊金原微生物肥料有限公司 | Production method of microorganism bacterium agent for waste purification |
| CN109321483A (en) * | 2017-07-31 | 2019-02-12 | 广东中微环保生物科技有限公司 | A kind of liquid high-density fermentation process of environmentally friendly complex micro organism fungicide |
| CN109321483B (en) * | 2017-07-31 | 2021-06-22 | 广东中微环保生物科技有限公司 | Liquid high-density fermentation method of environment-friendly compound microbial agent |
| CN108585224A (en) * | 2018-05-21 | 2018-09-28 | 山东省农业科学院农业资源与环境研究所 | A method of using complex micro organism fungicide treated sewage and being reduced sludge generation |
| CN110317737A (en) * | 2019-05-28 | 2019-10-11 | 广东子辉生态环境科技有限公司 | Compound EM microorganism formulation, preparation method and application method |
| CN110467324A (en) * | 2019-05-29 | 2019-11-19 | 常州大学 | A kind of method of novel photosynthetic bacteria solid matrix heavy metal biological toxicity in reducing printing and dyeing sludge |
| CN110144314A (en) * | 2019-05-30 | 2019-08-20 | 广东子辉生态环境科技有限公司 | It is a kind of for repairing the large-scale method for producing of the Tiny ecosystem flora of black and odorous water |
| CN110395862A (en) * | 2019-07-22 | 2019-11-01 | 常德职业技术学院 | A method of sludge is handled using complex micro organism fungicide |
| CN111471595A (en) * | 2020-04-17 | 2020-07-31 | 北京志能祥赢节能环保科技股份有限公司 | Separation and screening method of sludge source decrement strain |
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