CN101891359A - Medicament for tannery sludge bioleaching treatment - Google Patents
Medicament for tannery sludge bioleaching treatment Download PDFInfo
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- CN101891359A CN101891359A CN 201010221259 CN201010221259A CN101891359A CN 101891359 A CN101891359 A CN 101891359A CN 201010221259 CN201010221259 CN 201010221259 CN 201010221259 A CN201010221259 A CN 201010221259A CN 101891359 A CN101891359 A CN 101891359A
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- medicament
- bioleaching
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- sludge bioleaching
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Abstract
The invention provides a medicament for tannery sludge bioleaching treatment and belongs to the technical field of environmental engineering. The tannery sludge bioleaching medicament contains a carbon source and nutrient substances needed by the growth of thiobacillus and acid resistant heterotroph, and comprises ammonium sulfate, dipotassium phosphate, calcium nitrate, magnesium sulfate, vitamins, trace elements, carbon source substances, sulfur powder, refined pyrite or ferrous sulfate heptahydrate, a surfactant, dressing, and the like. The production technology comprises the following steps of: adsorbing liquid-state materials on dressing kieselguhr; and fully mixing the dressing kieselguhr and other solid materials. The medicament can rapidly reduce the pH value of the sludge and stimulate the rapid propagation of bioleaching microbes.
Description
One, technical field
The present invention relates to a kind of medicament that tannery sludge bioleaching is handled that is used for, belong to field of environment engineering technology.
Two, background technology
Curriery is the foreign-exchange earning industry of China's important export, also is an industry that environmental pollution is comparatively serious simultaneously.According to incompletely statistics, China's raw hide processing at present is about 100,000,000 marks opens, and leather industry year, sewage effluent was more than 100,000,000 t.Leather-making technology comprises: preparation, tanning and three workshop sections of ornamenting, and prepare workshop section raw hide is carried out roughing, comprise operations such as immersion, liming, depilation, deliming, softening, pickling, the preparatory stage is mainly discharged sulfur-containing waste water.Tanning workshop section generally uses the chromic salts tanning, mainly discharges chromate waste water.Finishing workshop section mainly discharges the wash-down water of ornamenting developing agent storage apparatus.The product of leather-making enterprises is all kinds of leathers, and wherein bulk raw material is pigskin, sheepskin and ox-hide, and these several leather comprehensive wastewater COD also have than big-difference, and wherein pigskin, sheepskin COD are 2000-4000mg/L, and ox-hide can reach 5000-8000mg/L; In addition, S in the sulfur-containing waste water
2-Can reach 4000mg/L, Cr can reach 4000mg/L in the chromate waste water.These waste water produce leather-making mud after entering sewage work's biochemical treatment.
It is worthy of note that leather-making mud and municipal sludge have many obvious differences in nature, for example, (1) leather-making mud organic matter is higher than municipal sludge usually; (2) toxic heavy metal concentration is also much higher than municipal sludge in the leather-making mud, but kind is single, mainly is trivalent chromium, and its concentration can reach 8000-40000mg/kg; (3) leather-making mud contains a large amount of sulfide.But as municipal sludge, leather-making mud also is difficult to dehydration, and its dewatered sludge is moisture also many, and stench is obvious at 80-85%, and is easy to be corrupt, is difficult to dispose and utilization.But contain abundant organic matter and nutritive elements such as N, P too, its fertilizer efficiency is equivalent to the fine chicken manure, is better than farm manures such as pig cow dung.Its calorific value of leather-making mud after the mummification then is equivalent to brown coal inferior, and therefore the potentiality of recycling are arranged.But directly utilize leather-making mud or the way that is used for farmland behind the leather-making mud compost can be constituted potentially dangerous to ecotope and food safety.Because the MnO that exists in the soil
2Cr (III) can be oxidized to Cr (VI), and solvability, transport property and the toxicity of Cr (VI) are all far above Cr (III).Farm crop also can accumulate the chromium in the mud in a large number simultaneously.Obviously, the difficult dehydration of leather-making mud exists this two large problems of deleterious chromium to restrict its disposal and utilization to a great extent.
Sludge bioleaching is handled (Bioleaching) and a kind ofly can be improved dewatering performance of sludge simultaneously and promote the biological treatment novel method (ZL02137921.1 that sludge heavy-metal is deviate from; ZL02112924.X; ZL200410014801.X; ZL200410044843.8; ZL200520072316.8).But the medicament kind and the quantity of adding in the quality of this bioleaching effect and the bioleaching process are closely bound up.Past often adds the bioleaching medicament that is made of single or simple several materials, often effect is relatively poor maybe can not keep permanent operation for the result, because the existing autotrophic bacteria of bioleaching microorganism also has many acid resistance heterotrophic bacteriums, these simple materials can not guarantee the demand of different microorganisms.In addition, containing a large amount of sulfide in the leather-making mud, is the best energy substance of autotrophic bacteria in the bioleaching microorganism, and therefore, tannery sludge bioleaching medicament also has obviously different with municipal sludge bioleaching medicament.
Three, summary of the invention
Technical problem
The object of the present invention is to provide a kind of special agent that tannery sludge bioleaching is handled that is used for.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.
Technical scheme
Be used for the special agent that tannery sludge bioleaching is handled, contain: ammonium sulfate, 2000-3000mg/kg; Dipotassium hydrogen phosphate, 3000-5000mg/kg; Nitrocalcite, 500-1000mg/kg; Magnesium sulfate heptahydrate, 300-600mg/kg; VITAMIN, 3000-4000mg/kg; Trace element, 3000-3500mg/kg; Carbon source material, 5000-8000mg/kg; The modified sulphur powder, 100g/kg; Smart pyrite (the FeS of 100 orders
2) or iron vitriol, 400g/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, 2 parts; Boric acid, 1 part; Sodium orthomolybdate, 1 part.
VITAMIN consists of: vitamins C, 1 part; Niacinamide, 1 part.
Carbon source material comprises: starch, 1 part; Formic acid or acetate, 3 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, dipotassium hydrogen phosphate, nitrocalcite, magnesium sulfate heptahydrate, VITAMIN, trace element, carbon source material, modified sulphur powder, smart pyrite (FeS respectively
2) or iron vitriol, bio-surfactant sandlwood sugar ester;
2) acetate is adsorbed in the dressing, and ammonium sulfate, dipotassium hydrogen phosphate, nitrocalcite, magnesium sulfate heptahydrate, VITAMIN, trace element, starch, modified sulphur powder, the smart pyrite (FeS2) of 100 orders or iron vitriol, bio-surfactant sandlwood sugar ester are mixed mixed respectively with dressing;
3) with behind all kinds of materials adding mixing tanks, add 100 parts of thorough mixing of dressing, stir;
4) packing.
Beneficial effect
The present invention compared with prior art has following advantage:
Because leather-making mud contains abundant sulfide, therefore in prescription, exempt the consumption of thiosulphate and minimizing sulphur powder, help to reduce reagent cost, this medicament can finely satisfy all kinds of microorganism growth needs in the bioleaching complex microorganism simultaneously.
Carbon source material adopts starch and acetate or formic acid, its objective is that the stimulating organism drop soaks breeding and the metabolism of the multiple acid resistance heterotrophic bacterium in the microorganism, because acetate or formic acid are best carbon source of this quasi-microorganism and energy substance.The growth of acid resistance heterotrophic bacterium helps the raising of bioleaching efficient.
Cause sludge pH to descend after this medicament joins in the bioleaching reactor quickly, help work microorganism such as thiobacillus to grow surely fast and play a role, can obviously improve the 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; Dipotassium hydrogen phosphate, 4000mg/kg; Nitrocalcite, 800mg/kg; Magnesium sulfate heptahydrate, 500mg/kg; Vitamins C, niacinamide, 4000mg/kg; Trace element seven water manganous sulfates, Zinc Sulphate Heptahydrate, boric acid, Sodium orthomolybdate, 3000mg/kg; Carbon source material starch, formic acid or acetate, 6000mg/kg; The modified sulphur powder, 100g/kg; Smart pyrite (the FeS of 100 orders
2) or iron vitriol, 400g/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; Dipotassium hydrogen phosphate, 4 kilograms; Nitrocalcite, 0.8 kilogram; Magnesium sulfate heptahydrate, 0.5 kilogram; Vitamins C, 2 kilograms; Niacinamide, 2 kilograms; Trace element seven water manganous sulfates, 0.6 kilogram; Zinc Sulphate Heptahydrate, 1.2 kilograms; Boric acid, 0.6 kilogram; Sodium orthomolybdate, 0.6 kilogram; Carbon source material starch, 1.5 kilograms; Formic acid or acetate, 4.5 kilograms; The modified sulphur powder, double centner; Smart pyrite (the FeS of 100 orders
2) or iron vitriol, 400 kilograms; Bio-surfactant sandlwood sugar ester, 0.6 kilogram;
2) formic acid or acetate are adsorbed on the diatomite, ammonium sulfate, dipotassium hydrogen phosphate, nitrocalcite, magnesium sulfate heptahydrate, VITAMIN, trace element, starch, 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) above each material is added mixing vessel after, add diatomite to 1 ton scale, then thorough mixing, stir;
4) packing.
Claims (4)
1. one kind is used for the medicament that tannery sludge bioleaching is handled, and it is characterized in that containing: ammonium sulfate, 2000-3000mg/kg; Dipotassium hydrogen phosphate, 3000-5000mg/kg; Nitrocalcite, 500-1000mg/kg; Magnesium sulfate heptahydrate, 300-600mg/kg; VITAMIN, 3000-4000mg/kg; Trace element, 3000-3500mg/kg; Carbon source material, 5000-8000mg/kg; The modified sulphur powder, 100g/kg; Smart pyrite (the FeS of 100 orders
2) or iron vitriol, 400g/kg; Bio-surfactant sandlwood sugar ester, 500-1000mg/kg; Dressing adds to 100 parts.
2. a kind of medicament that tannery sludge bioleaching is handled that is used for according to claim 1 is characterized in that: VITAMIN is meant 1 part of vitamins C and 1 part of mixture that niacinamide is formed.
3. a kind of medicament that tannery sludge bioleaching is handled that is used for according to claim 1 is characterized in that: carbon source material is the mixture that 1 part of starch and 3 parts of acetate or formic acid are formed.
4. a kind of medicament that the municipal sludge bioleaching is handled that is used for according to claim 1, it is characterized in that: trace element is meant by 1 part of seven water manganous sulfate, 2 parts of Zinc Sulphate Heptahydrates, 1 part of boric acid and 1 part of mixture that Sodium orthomolybdate is formed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010221259 CN101891359B (en) | 2010-07-08 | 2010-07-08 | Medicament for tannery sludge bioleaching treatment |
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| CN 201010221259 CN101891359B (en) | 2010-07-08 | 2010-07-08 | Medicament for tannery sludge bioleaching treatment |
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| CN101891359A true CN101891359A (en) | 2010-11-24 |
| CN101891359B CN101891359B (en) | 2013-12-25 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103936246A (en) * | 2014-03-27 | 2014-07-23 | 南京农业大学 | New method for deeply dewatering sludge through bio-leaching process rapid conditioning |
| CN104496140A (en) * | 2014-11-11 | 2015-04-08 | 北京中科国通环保工程技术有限公司 | Municipal sludge bioleaching method |
| CN105859081A (en) * | 2016-05-31 | 2016-08-17 | 河南工程学院 | Dedicated nutritional agent for biological treatment of sludge and production method thereof |
| CN106587368A (en) * | 2015-10-15 | 2017-04-26 | 国科蓝天清洁能源技术有限公司 | Biological cooling-efficiency-increasing detergent and use thereof |
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 |
-
2010
- 2010-07-08 CN CN 201010221259 patent/CN101891359B/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 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103936246A (en) * | 2014-03-27 | 2014-07-23 | 南京农业大学 | New method for deeply dewatering sludge through bio-leaching process rapid conditioning |
| 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 |
| CN104496140A (en) * | 2014-11-11 | 2015-04-08 | 北京中科国通环保工程技术有限公司 | Municipal sludge bioleaching method |
| CN106587368A (en) * | 2015-10-15 | 2017-04-26 | 国科蓝天清洁能源技术有限公司 | Biological cooling-efficiency-increasing detergent and use thereof |
| CN105859081A (en) * | 2016-05-31 | 2016-08-17 | 河南工程学院 | Dedicated nutritional agent for biological treatment of sludge and production method 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 |
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| Publication number | Publication date |
|---|---|
| CN101891359B (en) | 2013-12-25 |
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Assignee: GENERAL TREATMENT ENVIRONMENT (BEIJING) LTD. Assignor: Nanjing Agricultural University Contract record no.: 2011110000043 Denomination of invention: Medicament for tannery sludge bioleaching treatment License type: Exclusive License Open date: 20101124 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: 20101124 Assignee: Beijing Zhongke national environmental protection engineering technology Limited by Share Ltd Assignor: Nanjing Agricultural University Contract record no.: 2015990000952 Denomination of invention: Medicament for tannery sludge bioleaching treatment Granted publication date: 20131225 License type: Exclusive License Record date: 20151116 |
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