CN101913743B - Agent special for bioleaching municipal sludge and production process thereof - Google Patents
Agent special for bioleaching municipal sludge and production process thereof Download PDFInfo
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- CN101913743B CN101913743B CN 201010221264 CN201010221264A CN101913743B CN 101913743 B CN101913743 B CN 101913743B CN 201010221264 CN201010221264 CN 201010221264 CN 201010221264 A CN201010221264 A CN 201010221264A CN 101913743 B CN101913743 B CN 101913743B
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Abstract
The invention provides an agent special for bioleaching municipal sludge, which belongs to the technical field of engineering technology. The agent for bioleaching the municipal sludge contains a carbon source and nutrient substances, which are needed by the growth of thiobacillus and acid-resistant heterotrophic bacteria, including ammonium sulfate, potassium chloride, dipotassium phosphate, calcium nitrate, magnesium sulfate, vitamins, trace elements, carbon source substances, sodium thiosulfate, sulphur powder, finished pyrite or ferrous sulfate heptahydrate, surfactant, dressing and the like. The production process comprises the following steps of: adsorbing a liquid material on diatomite serving as the dressing; and fully mixing the liquid material, other solid materials and the diatomite serving as the dressing to obtain the agent. The agent can meet the growth demands of various microorganisms in a bioleaching composite microorganism at the same time and greatly improve sludge bioleaching efficiency.
Description
One, technical field
The present invention relates to a kind of special agent for the processing of municipal sludge bioleaching, belong to field of environment engineering technology.
Two, background technology
By the end of the year 2009, China municipal sewage plant has reached 1993, and day disposes of sewage and exceedes 100,000,000 M
3, year generation dewatered sludge (moisture 80-85%) nearly 4,000 ten thousand tons.Because China's municipal sludge mainly is the excess sludge of discharging after sewage work's secondary biochemical treatment or the mixing sludge that mixes with a heavy pond, the organic content height, wetting ability is strong, carry out all adopting polyacrylamide (PAM) flocculation before the mechanical dehydration in addition, therefore dewatered sludge water ratio height (80%-85%) has increased very big difficulty for follow-up disposal.On the other hand, some municipal sewage plants of China particularly the sewage work of some industrial parks cause existing in the mud more toxic heavy metal because the receiving portion industrial sewage.Sludge moisture content is high to be the two big bottlenecks that restrict sludge disposal and recycling at present with there being heavy metal.
In order to reduce sewage sludge viscosity, to improve dewatering performance of sludge, aspect the preconditioning technique of mud, carried out big quantity research both at home and abroad, as the hydrothermal treatment consists technology of employing High Temperature High Pressure or by adding coagulating agent iron(ic) chloride (FeCl
36H
2O) and coagulant aids lime, diatomite, flyash etc. and then filter-press dehydration, the dewatered sludge water ratio is reached below 60%.Yet last pretreatment process relates to high investment and energy consumption cost, but also the difficult organic waste water problem that has potential safety hazard and produce the high COD of high ammonia nitrogen, back one method is then owing to need attach a large amount of inorganic coagulants and coagulant aids, mud amount of dry matter after causing dewatering increases considerably, organic content then descends significantly, has a strong impact on the recycling of mud.At the problem of heavy metal in the mud, Macchi etc. (1998) and Panswad (1995) just once attempted adopting mineral acid such as sulfuric acid extraction to remove the scheme of leather-making mud chromium.But this method acid consumption is very big, environment is dangerous (directly adding mineral acid also can cause a large amount of toxic gas hydrogen sulfide to leak), the operation that exerts an influence of a large amount of foams is arranged.These shortcomings make the chemical detoxication method of mud there is no actual application value.In recent years, have the investigator to adopt microwave method, supersonic method is carried out broken ablation process to the mud cell and is beneficial to dehydration, but this method can not make in the mud heavy metal deviate from.
For solving the sludge heavy-metal problem, if some patent (ZL02137921.1 of the bioleaching technology (English name is Bioleaching, also claims " bioleaching " in the past) that the effect that utilizes microbial host acidophilia thiobacillus removes heavy metal in the mud had once invented in this seminar; ZL02112924.X; ZL200410014801.X; ZL200410044843.8; ZL200520072316.8).Discover that subsequently this technology not only has the effect of removing heavy metal, but also have synchronous deodorization, kill pathogen and promote the mud efficient flocculating and the effect of high mass dryness fraction dehydration.Application number is 200810242584.8 patent disclosure a kind ofly can improve dewatering performance of sludge simultaneously and promote sludge heavy-metal to deviate from, and realizes the bioleaching method that continuous pulling flow type is handled.Mud can make the dewatered sludge water ratio be reduced to 50%-60% by filter-press dehydration after bioleaching is handled again, and extrusion rate of heavy metals is greater than 80%.
Yet medicament kind and the quantity of adding in the quality of bioleaching effect and the bioleaching process are closely bound up.This medicament mainly is to comprise the medicament that offers bioleaching complex microorganism (composite flora of being made up of thiobacillus and the acid resistance heterotrophic bacterium) energy and nutrition, is a kind of compound, and often effect is relatively poor for the bioleaching medicament that single material constitutes.
Three, summary of the invention
Technical problem
The object of the present invention is to provide a kind of special agent for the processing of municipal sludge bioleaching.This medicament mainly contains energy substance (comprising the carbon source material that is supplied to the acid resistance heterotrophic bacterium), nutritive substance and the surfactant-based material for microorganism growth, and it is can be very fast miscible and do not precipitate with mud that medicament is entered behind the liquid sludge.
Technical scheme
Be used for the special agent that the municipal sludge bioleaching is handled, contain: ammonium sulfate, 2000-4000mg/kg; Repone K, 100-200mg/kg; Dipotassium hydrogen phosphate, 1000-3000mg/kg; Nitrocalcite, 200-500mg/kg; Magnesium sulfate heptahydrate, 300-600mg/kg; VITAMIN, 2000-3000mg/kg; Trace element, 3000-3500mg/kg; Carbon source material, 5000-8000mg/kg; Five water Sulfothiorine, 200g/kg; The modified sulphur powder, 200g/kg; Smart pyrite (the FeS of 100 orders
2) or iron vitriol, 100g/kg; Bio-surfactant sandlwood sugar ester, 500-1000mg/kg; Dressing adds to 100 parts.
Trace element consists of: seven water manganous sulfates, 1 part; Zinc Sulphate Heptahydrate, 5 parts; Boric acid, 1 part; Sodium orthomolybdate, 1 part.
VITAMIN consists of: vitamins B, 1 part; Vitamins C, 1 part.
Carbon source material comprises: starch, 3 parts; Formic acid, 2 parts (weight).
Dressing: greater than 80 purpose diatomite.
Produce the technology of above-mentioned municipal sludge bioleaching special agent, comprising:
1) takes by weighing ammonium sulfate, Repone K, dipotassium hydrogen phosphate, nitrocalcite, magnesium sulfate heptahydrate, VITAMIN, trace element, carbon source material, five water Sulfothiorine, modified sulphur powder, smart pyrite (FeS respectively
2) or iron vitriol, bio-surfactant sandlwood sugar ester;
2) formic acid is adsorbed in the dressing, ammonium sulfate, Repone K, dipotassium hydrogen phosphate, nitrocalcite, magnesium sulfate heptahydrate, VITAMIN, trace element, starch, five water Sulfothiorine, modified sulphur powder, the smart pyrite (FeS of 100 orders
2) or iron vitriol, bio-surfactant sandlwood sugar ester mix mixed respectively with dressing;
3) with behind all kinds of materials adding mixing tanks, add dressing and fully mix, stir for 100 parts;
4) packing.
Beneficial effect
The present invention compared with prior art has following advantage:
This medicament can satisfy all kinds of microorganism growth needs in the bioleaching complex microorganism simultaneously.
Carbon source material can promote the growth of acid resistance heterotrophic microorganism well, is conducive to heterotrophic microorganism promotes thiobacillus by the commensalism relation breeding and metabolism.
Can in 2-3 days, by stimulating microorganism growth sludge pH be descended after this medicament joins in the bioleaching reactor, improve flocculation dewatering and the heavy metal removing rate of mud.
Four, embodiment
Optimum implementation of the present invention.
Municipal sludge bioleaching special agent contains: ammonium sulfate, 3000mg/kg; Repone K, 200mg/kg; Dipotassium hydrogen phosphate, 2000mg/kg; Nitrocalcite, 400mg/kg; Magnesium sulfate heptahydrate, 500mg/kg; Vitamins B, vitamins C, 3000mg/kg; Trace element seven water manganous sulfates, Zinc Sulphate Heptahydrate, boric acid, Sodium orthomolybdate, 3200mg/kg, carbon source material starch, formic acid, 6000mg/kg, five water Sulfothiorine, 200g/kg; The modified sulphur powder, 200g/kg; Smart pyrite (the FeS of 100 orders
2) or iron vitriol, 100g/kg; Bio-surfactant sandlwood sugar ester, 600mg/kg; Diatomite adds to 100 parts.The processing step of producing above-mentioned 1 ton of municipal sludge bioleaching special agent comprises:
1) difference weighing ammonium sulfate, 3 kilograms; Repone K, 0.2 kilogram; Dipotassium hydrogen phosphate, 2 kilograms; Nitrocalcite, 0.4 kilogram; Magnesium sulfate heptahydrate, 0.5 kilogram; Vitamins B, 1.5 kilograms; Vitamins C, 1.5 kilograms; Trace element seven water manganous sulfates, 0.4 kilogram; Zinc Sulphate Heptahydrate, 2 kilograms; Boric acid, 0.4 kilogram; Sodium orthomolybdate, 0.4 kilogram; Carbon source material starch, 3.6 kilograms; Formic acid, 2.4 kilograms; Five water Sulfothiorine, 200 kilograms; The modified sulphur powder, 200 kilograms; Smart pyrite (the FeS of 100 orders
2) or iron vitriol, double centner; Bio-surfactant sandlwood sugar ester, 0.6 kilogram;
2) formic acid is adsorbed on the diatomite, ammonium sulfate, Repone K, dipotassium hydrogen phosphate, nitrocalcite, magnesium sulfate heptahydrate, VITAMIN, trace element, starch, five water Sulfothiorine, modified sulphur powder, the smart pyrite (FeS of 100 orders
2) or iron vitriol, bio-surfactant sandlwood sugar ester mix mixed respectively with diatomite;
3) with behind above each material adding mixing vessel, add diatomite to 1 ton scale, fully mix then, stir;
4) packing.
Claims (2)
1. one kind is used for the special agent that the municipal sludge bioleaching is handled, and it is characterized in that containing in 1 ton of medicament: ammonium sulfate, 3 kilograms; Repone K, 0.2 kilogram; Dipotassium hydrogen phosphate, 2 kilograms; Nitrocalcite, 0.4 kilogram; Magnesium sulfate heptahydrate, 0.5 kilogram; Vitamins B, 1.5 kilograms; Vitamins C, 1.5 kilograms; Seven water manganous sulfates, 0.4 kilogram; Zinc Sulphate Heptahydrate, 2 kilograms; Boric acid, 0.4 kilogram; Sodium orthomolybdate, 0.4 kilogram; Starch, 3.6 kilograms; Formic acid, 2.4 kilograms; Five water Sulfothiorine, 200 kilograms; The modified sulphur powder, 200 kilograms; Smart pyrite (the FeS of 100 orders
2) or iron vitriol, double centner; Rhanolipid as biosurfactant, 0.6 kilogram; Filler diatomite adds to 1 ton.
2. the described a kind of special agent of handling for the municipal sludge bioleaching of claim 1 is to form by following explained hereafter:
1) takes by weighing ammonium sulfate, Repone K, dipotassium hydrogen phosphate, nitrocalcite, magnesium sulfate heptahydrate, vitamins B, vitamins C, seven water manganous sulfates, Zinc Sulphate Heptahydrate, boric acid, Sodium orthomolybdate, starch, formic acid, five water Sulfothiorine, modified sulphur powder, smart pyrite (FeS respectively
2) or iron vitriol, rhanolipid as biosurfactant;
2) formic acid is adsorbed on the diatomite, ammonium sulfate, Repone K, dipotassium hydrogen phosphate, nitrocalcite, magnesium sulfate heptahydrate, vitamins B, vitamins C, seven water manganous sulfates, Zinc Sulphate Heptahydrate, boric acid, Sodium orthomolybdate, starch, five water Sulfothiorine, modified sulphur powder, the smart pyrite (FeS of 100 orders
2) or iron vitriol, rhanolipid as biosurfactant mix mixed respectively with diatomite;
3) all kinds of materials are added mixing tanks after, add diatomite to 1 and ton fully mix, stir;
4) packing.
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| CN 201010221264 CN101913743B (en) | 2010-07-08 | 2010-07-08 | Agent special for bioleaching municipal sludge and production process thereof |
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| CN 201010221264 CN101913743B (en) | 2010-07-08 | 2010-07-08 | Agent special for bioleaching municipal sludge and production process thereof |
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| CN101913743B true CN101913743B (en) | 2013-08-07 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103539286B (en) * | 2013-10-29 | 2015-01-28 | 江苏福瑞水产养殖有限公司 | Prevention and control method for blue-green algae in aquatic water |
| CN103936246B (en) * | 2014-03-27 | 2016-04-13 | 南京农业大学 | A kind of sludge bioleaching method nurses one's health the method for deep dehydration fast |
| CN105384321B (en) * | 2015-12-29 | 2018-03-16 | 哈尔滨工业大学 | A kind of bioleaching composite drug |
| CN105602868A (en) * | 2016-01-22 | 2016-05-25 | 南京贝克特环保科技有限公司 | Microbial nutritional agent for rapidly treating waste leachate of waste incineration plant and production process thereof |
| CN105859081B (en) * | 2016-05-31 | 2019-05-03 | 河南工程学院 | A kind of nutrient special and its production method for sludge organism processing |
| CN106186348A (en) * | 2016-07-13 | 2016-12-07 | 盐城工学院 | Improve microorganism to degrade in the liquid phase the bio-enhancer of m-dichlorobenzene efficiency and adding method thereof |
| 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 |
| CN107352657B (en) * | 2017-07-21 | 2023-09-19 | 北京市科学技术研究院资源环境研究所 | Zero-valent iron biological carbon source composite agent for in-situ remediation of chlorinated hydrocarbon polluted groundwater |
| CN108503181B (en) * | 2018-04-19 | 2020-02-07 | 江苏康泰环保股份有限公司 | Harmless integrated treatment method for oily sludge |
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| CN1389564A (en) * | 2002-07-09 | 2003-01-08 | 周立祥 | Thiobacillus thiooxidans and biological eliminating method of chromium in tanning sludge |
| CN1648077A (en) * | 2004-04-30 | 2005-08-03 | 南京农业大学 | Process and its device for biologically removing heavy metal in mud |
| CN101643243A (en) * | 2009-08-14 | 2010-02-10 | 扬州宁达贵金属有限公司 | Method for recovering copper, nickel, chromium, zinc and iron from electroplating sludge |
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2010
- 2010-07-08 CN CN 201010221264 patent/CN101913743B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1389564A (en) * | 2002-07-09 | 2003-01-08 | 周立祥 | Thiobacillus thiooxidans and biological eliminating method of chromium in tanning sludge |
| CN1648077A (en) * | 2004-04-30 | 2005-08-03 | 南京农业大学 | Process and its device for biologically removing heavy metal in mud |
| CN101643243A (en) * | 2009-08-14 | 2010-02-10 | 扬州宁达贵金属有限公司 | Method for recovering copper, nickel, chromium, zinc and iron from electroplating sludge |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: GENERAL TREATMENT ENVIRONMENT (BEIJING) LTD. Assignor: Nanjing Agricultural University Contract record no.: 2011110000043 Denomination of invention: Agent special for bioleaching municipal sludge and production process thereof License type: Exclusive License Open date: 20101215 Record date: 20110616 |
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Assignee: Beijing Zhongke national environmental protection engineering technology Limited by Share Ltd Assignor: Nanjing Agricultural University Contract record no.: 2011110000043 Date of cancellation: 20151110 |
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Change date: 20151110 Contract record no.: 2011110000043 Assignee after: Beijing Zhongke national environmental protection engineering technology Limited by Share Ltd Assignee before: GENERAL TREATMENT ENVIRONMENT (BEIJING) LTD. |
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Application publication date: 20101215 Assignee: Beijing Zhongke national environmental protection engineering technology Limited by Share Ltd Assignor: Nanjing Agricultural University Contract record no.: 2015990000952 Denomination of invention: Agent special for bioleaching municipal sludge and production process thereof Granted publication date: 20130807 License type: Exclusive License Record date: 20151116 |
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