CN101891359B - Medicament for tannery sludge bioleaching treatment - Google Patents
Medicament for tannery sludge bioleaching treatment Download PDFInfo
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- CN101891359B CN101891359B CN 201010221259 CN201010221259A CN101891359B CN 101891359 B CN101891359 B CN 101891359B CN 201010221259 CN201010221259 CN 201010221259 CN 201010221259 A CN201010221259 A CN 201010221259A CN 101891359 B CN101891359 B CN 101891359B
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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 of processing for tannery sludge bioleaching, belong to field of environment engineering technology.
Two, background technology
Curriery is the important export-oriented industry industry of China, is also 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, 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 to roughing, comprise the operations such as immersion, liming, depilation, deliming, softening, pickling, the preparatory stage is mainly discharged sulfur-containing waste water.Tanning process is generally used 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 larger difference, and wherein pigskin, sheepskin COD are 2000-4000mg/L, and ox-hide can reach 5000-8000mg/L; In addition, S in sulfur-containing waste water
2-can reach 4000mg/L, in chromate waste water, Cr can reach 4000mg/L.These waste water produce leather-making mud after entering sewage work's biochemical treatment.
It is worthy of note, leather-making mud and municipal sludge have many obvious differences in nature, and for example, (1) leather-making mud organic matter is usually higher than municipal sludge; (2) in leather-making mud, toxic heavy metal concentration is also much higher than municipal sludge, but kind is single, is mainly trivalent chromium, and its concentration can reach 8000-40000mg/kg; (3) leather-making mud is containing 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%, easily corrupt, is difficult to dispose and utilizes.But containing abundant organic matter and the nutritive elements such as N, P, its fertilizer efficiency is equivalent to the chicken manure of high-quality, is better than the farm manures such as pig cow dung too.Its calorific value of leather-making mud after mummification is equivalent to brown coal inferior, and therefore the potentiality of recycling are arranged.But directly utilize leather-making mud or the way for farmland after the leather-making mud compost can be formed to potentially dangerous to ecotope and food safety.Because the MnO existed in 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 mud in a large number simultaneously.Obviously, the difficult dehydration of leather-making mud, exist this two large problems of harmful chromium to restrict to a great extent its disposal and utilization.
Sludge bioleaching is processed (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 medicament kind and the quantity of in the quality of this bioleaching effect and bioleaching process, adding are closely bound up.Past often adds the bioleaching medicament consisted of single or simple several materials, often effect is poor maybe can not keep permanent operation for 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, in leather-making mud, containing a large amount of sulfide, be the best energy substance of autotrophic bacteria in the bioleaching microorganism, therefore, tannery sludge bioleaching medicament also has obviously different from 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 of processing for tannery 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.
Technical scheme
The special agent of processing for tannery sludge bioleaching, 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; 100 order essence pyrite (FeS
2) or iron vitriol, 400g/kg; The bio-surfactant rhamnolipid, 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 acetic acid, 3 parts (weight).
Dressing: be greater than 80 purpose diatomite.
Produce the technique of above-mentioned municipal sludge bioleaching special agent, comprising:
1) take respectively ammonium sulfate, dipotassium hydrogen phosphate, nitrocalcite, magnesium sulfate heptahydrate, VITAMIN, trace element, carbon source material, modified sulphur powder, smart pyrite (FeS
2) or iron vitriol, bio-surfactant rhamnolipid;
2) acetic acid is adsorbed in dressing, and ammonium sulfate, dipotassium hydrogen phosphate, nitrocalcite, magnesium sulfate heptahydrate, VITAMIN, trace element, starch, modified sulphur powder, 100 order essence pyrite (FeS2) or iron vitriol, bio-surfactant rhamnolipid are mixed respectively mixed with dressing;
3) after all kinds of materials are added to mixing tank, add 100 parts of dressing and fully mix, stir;
4) packing.
Beneficial effect
The present invention compared with prior art, has following advantage:
Because leather-making mud contains abundant sulfide, therefore in formula, exempt the consumption of thiosulphate and minimizing sulphur powder, contribute to reduce reagent cost, this medicament can finely meet all kinds of microorganism growth needs in the bioleaching complex microorganism simultaneously.
Carbon source material adopts starch and acetic acid or formic acid, its objective is that the stimulating organism drop soaks breeding and the metabolism of the multiple acid resistance heterotrophic bacterium in microorganism, because acetic acid or formic acid are the best carbon source of this quasi-microorganism and energy substance.The growth of acid resistance heterotrophic bacterium contributes to the raising of bioleaching efficiency.
This medicament causes sludge pH to descend quickly after joining in the bioleaching reactor, contribute to the work microorganism such as thiobacillus surely grow fast and play a role, and can obviously improve flocculation dewatering and the heavy metal removing rate of mud.
Four, embodiment
Optimum implementation of the present invention.
Municipal sludge bioleaching special agent, contain: 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 acetic acid, 6000mg/kg; The modified sulphur powder, 100g/kg; 100 order essence pyrite (FeS
2) or iron vitriol, 400g/kg; The bio-surfactant rhamnolipid, 600mg/kg; Diatomite, add 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 acetic acid, 4.5 kilograms; The modified sulphur powder, double centner; 100 order essence pyrite (FeS
2) or iron vitriol, 400 kilograms; The bio-surfactant rhamnolipid, 0.6 kilogram;
2) formic acid or acetic acid are adsorbed on diatomite, ammonium sulfate, dipotassium hydrogen phosphate, nitrocalcite, magnesium sulfate heptahydrate, VITAMIN, trace element, starch, modified sulphur powder, 100 order essence pyrite (FeS
2) or iron vitriol, bio-surfactant rhamnolipid with diatomite, mix respectively mixed;
3) after above each material is added to mixing vessel, add diatomite to 1 ton scale, then fully mix, stir;
4) packing.
Claims (1)
1. a medicament of processing for tannery sludge bioleaching, is characterized in that containing in 1 ton of medicament: 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; Seven water manganous sulfates, 0.6 kilogram; Zinc Sulphate Heptahydrate, 1.2 kilograms; Boric acid, 0.6 kilogram; Sodium orthomolybdate, 0.6 kilogram; Starch, 1.5 kilograms; Acetic acid or formic acid, 4.5 kilograms; The modified sulphur powder, double centner; 100 order essence pyrite (FeS
2) or iron vitriol, 400 kilograms; Rhanolipid as biosurfactant, 0.6 kilogram; Filler diatomite adds to 1 ton.
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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 CN101891359A (en) | 2010-11-24 |
| CN101891359B true CN101891359B (en) | 2013-12-25 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104496140B (en) * | 2014-11-11 | 2017-01-11 | 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 |
| 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 |
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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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: 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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