CN100551880C - Sewage factory sludge produced organic acid fertilizer and product - Google Patents
Sewage factory sludge produced organic acid fertilizer and product Download PDFInfo
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- CN100551880C CN100551880C CNB2006101471144A CN200610147114A CN100551880C CN 100551880 C CN100551880 C CN 100551880C CN B2006101471144 A CNB2006101471144 A CN B2006101471144A CN 200610147114 A CN200610147114 A CN 200610147114A CN 100551880 C CN100551880 C CN 100551880C
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- fertilizer
- organic acid
- product
- mud
- organic
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
Abstract
The invention discloses a kind of with sewage factory sludge produced organic acid fertilizer and product, product composition and content (being converted into butt) are: organic acid and humic acid salt 18～35%, nitrogen 8～20%, Vanadium Pentoxide in FLAKES 3～10%, potassium oxide 4～15%, surplus are other organic and inorganic substance; The soil ulmin complex compound that heavy metal generates forms harmless silicate and removes behind liquid-solid separating high-temp sintering.With low temperature liquid polymerization process production high-quality organic acid fertilizer; problems such as mud sterilization, sterilization, deodorizing, removing heavy metals and three-waste pollution have been solved; have and exempt fermentation, equipment and technology is simple and easy, product fertilizer efficiency height, be beneficial to advantage such as environment protection, the present invention is widely used in using in the innoxious comprehensive utilization of sewage plant sludge.
Description
The present invention relates to a kind of sewage factory sludge produced organic acid fertilizer and product, more particularly, relate to a kind of low temperature liquid polymerization process processing active sludge and make the organic acid fertilizer of high fertilizer efficiency, and the liquid-solid separation of solid phase heavy metal complex is sintered into the method and the above-mentioned product that obtains of harmless silicate.
In the prior art, along with the development that deepens constantly of environment protection cause, municipal sewage treatment factory builds throughout the country in a large number, its by product---the processing of a large amount of active sludge and utilize problem then outstanding further.In the sewage plant sludge, contain 4/5ths water and 1/5th suspension organic substance; Both contain nitrogen, phosphorus, potassium beneficial element and can contain heavy metal chromium compounds such as harmful microorganism (pathogenic bacterium, virus, parasitic ovum) and chromium, cadmium, lead, arsenic, mercury again for the organic-biological thalline that utilizes in a large number.Because the complicated ingredient and the thickness state of mud make its disposal utilization become a difficult problem, up to the present, also do not have mature technology that active sludge is effectively handled and made full use of.Existing activated sludge treatment method has: (1) mud landfill: land occupation not only, and also can the polluted underground water source; (2) mud is poured into marine: can pollute the marine site, destroy the eubiosis; (3) mud mud burns: mud is moisture more than 80%, and not only process cost is big, and wastes organic resource, and waste gas also can atmosphere pollution; (4) making fertilizer after sludge fermentation is become thoroughly decomposed, comparatively speaking, be a kind of method preferably, but fermentation time is long, and floor space is big, and production efficiency is low, waste time and energy, and has heavy metal accumulation pollution problem; (5) make fertilizer behind the wet drying sludge: because mud is the thickness state, particularly endobacillary cell combination water, dehydrating effect is very poor, is difficult to carry out drying, wastes time and energy, and heavy metal pollution problem is arranged equally; (6) other method for sludge treatment: still be in conceptual phase at present.All there are serious problems in the whole bag of tricks of above-described processing mud, and therefore, the simple method of essential employing is carried out innoxious high-efficiency comprehensive utilization to mud.
The present invention aims to provide a kind of with sewage factory sludge produced organic acid fertilizer and the product that obtained thereof, promptly adopt low temperature liquid polymerization process, microorganism and somatic cells wall in the mud are cracked, protein, fat, xylogen etc. are by decomposition reaction, generate components such as organic acid, reach sterilization, sterilization, deodorizing purpose simultaneously, and with the Solid complexing thing of sludge heavy-metal with the soil ulmin generation, after liquid-solid separation, sinter harmless silicate into and remove; The present invention exempts zymotechnique, makes full use of mud and makes good water solubility, compound manure that fertilizer efficiency is high.
In order to achieve the above object, the present invention has adopted following technical scheme:
(1) in mud, adds sodium sulphite and dithiocarbonic anhydride (wherein, dithiocarbonic anhydride must be stored in spirituous solution), solution is alkalescence, PH=8～10, pH value can not add adjusting, and adds trisodium phosphate dispersion agent and four fourth fat defoamers, heat up 80～85 ℃, normal pressure is incubated 1 hour, makes microorganism and somatic cells wall in the mud crack reaction; Microorganism and thalline resolve into itrogenous organic substance (major constituent is a protein) and non-itrogenous organic substance (major constituent is a glucose), and the organic substance in the solution is made up of protein, fat, xylogen, Mierocrystalline cellulose, carbohydrate and soil ulmin at this moment.Heat up 90～95 ℃ again, normal pressure is incubated 1～2 hour again, and following decomposition reaction takes place:
I, proteolysis generates organic acid:
Protein+H
2O → RCHNH
2COOH
II, cellulose hydrolysis generates glucose:
(C
6H
10O
5)n+nH
2O→nC
6H
12O
6
III, breakdown of glucose generates oxalic acid:
C
6H
12O
6→3C
2H
2O
4+3H
2O
In addition, also have xylogen to decompose and generate phenol, aldehyde and acid etc.
(2) in the mud than the humic acid of small molecular weight, with potassium, sodium, ammonia (K
+, Na
+, NH3
+) the plasma combination, generate the humic acid salt and be dissolved in the solution;
(3) soil ulmin of larger molecular weight relatively is difficult to decompose in the mud, originally the insoluble in water that formed with regard to already present soil ulmin and heavy metal [chromium (Cr), cadmium (Cd), plumbous (Pb), mercury (Hg), arsenic (As) etc.] in the mud in chromium complex, still be retained in the solution with solid phase form.
(4) solution filters, and filter residue is added water glass carry out high temperature sintering, makes heavy metal generate harmless silicate and removes.
(5) by aforementioned decomposition reaction, reached sterilization, sterilization, de-odorised purpose, component and humic acid salt solution such as gained organic acid, phenol, aldehyde can further concentrate and make the rare fertilizer of dashing of high fertilizer efficiency, or granulation again, drying, make the particulate state compoiste fertilizer.
The manufacture method of organic acid fertilizer of the present invention comprises batch mixing, cracks, decomposes, filters, concentrates, packs, and the heavy metal sintering.Its concrete manufacturing processed is: (1) stirs with band and the uncovered equipment of stack gas passageway heating is made batch mixing, cracks and decompose jar, elder generation adds moisture 80%～85% wet mud, in mud, add 2.5～4.5% (mud butt weight ratios, as follows) sodium sulphite, 0.2～0.6% dithiocarbonic anhydride, 1.5～2.0% trisodium phosphates, add 3～5% tap water, (adding the four fourth fat defoamers that account for water weight 10～20% in the tap water in advance), above-mentioned material is heated to 80～85 ℃ while stirring, normal pressure, be incubated 1 hour, microorganism wall is cracked; Be heated to 90～95 ℃ more while stirring, normal pressure is incubated 1.5～2 hours, makes organic substance generation decomposition reaction; (2) solution filters, and filtrate is concentrated, and adds nitrogen, phosphorus, potassium auxiliary material, pack liquid towards rare fertilizer; (3) also can pass through granulation, drying, make the particulate state organic composite fertilizer; (4) add in the filter residue that to account for the filter residue weight percent be to send in the process furnace behind 10% the liquid sodium silicate, through 1100 ℃ of sintering half an hour, innoxious heavy metal silicate material, can be for brickmaking or cement mill use.
Prepared organic acids fertilizer, product composition and content (being converted into butt) are: organic acid and humic acid salt 18～35%, nitrogen 8～20%, Vanadium Pentoxide in FLAKES 3～10%, potassium oxide 4～15%, surplus is other organic and inorganic substance.
In implementing process of the present invention, adding sodium sulphite in mud is technical grade " salable product " quality, sodium sulphite (Na
2S) content 〉=60.0%; Add dithiocarbonic anhydride (CS
2), being technical grade " regular grade " quality, outward appearance is a colourless transparent liquid, 45.6～46.6 ℃ of boiling ranges (during 1.0Mpa), relative density (D
4 20) be 1.262～1.267, in spirituous solution, store just stable, the synergy fit applications of it and sodium sulphite, the low temperature of realization microorganism wall (phospholipid bilayer) cracks, and is one of characteristics of the present invention; Adding trisodium phosphate (being tetrasodium phosphate) is technical grade " salable product ", contains Na
4P
2O
4〉=95.0%, water insoluble matter content≤0.20%, it plays dissemination; Add four fourth fat technical grade product defoamers, can effectively eliminate the foam that reaction generates; Add liquid sodium silicate (Na
2OnSiO
2) be technical grade " five classes " product, contain silicon-dioxide 〉=29.2%, can make heavy metal be easy to sinter into the silicates material.
In implementing process of the present invention, must grasp the degree of depth that decomposition reaction is carried out, control three big factors are controlled reaction depth: (1) adds Na
2S and CS
2Quantity, (2) temperature, (3) time.Admixture is too much, temperature is too high, overlong time, all can make to react to make organic acid generation aminating reaction generate NH deeply
3, CO
2Deng material, both produced exhaust emission, reduce the organism fertilizer efficiency again; Under reverse situation, then can make reaction shallow excessively, make a part of mud organic substance qualitative response not exclusively influence fertilizer efficiency.
The control reaction depth also should be taken into account and heavy metal bonded soil ulmin complex compound, still is retained in the solution with solid phase form, makes heavy metal remove efficient and reaches more than 90%; The humic acid salt then exists in solution with dissolved state; After reaction finished, the mud flocs unit significantly reduced, and solution is easy to filter and concentrate.
Compared with prior art, the present invention has following tangible advantage: (1) the present invention adopts low temperature " liquid phase method " to handle mud, has avoided existing " solid phase method " to handle the various pendent difficult problem that mud exists; (2) effectively remove heavy metal in the mud, generate innoxious material; (3) mud sterilization, sterilization, de-odorised purpose have been realized; (4) there is not " three wastes " pollution problem; (5) organic acid fertilizer that makes is easy to ammonification in soil, be the high-efficiency organic fertilizer that farm crop absorb easily; (6) exempt zymotechnique, device simple, method is simple, and is easy to implement.The present invention had both paid for Sewage Plant and had produced the outlet that a large amount of active sludge provide a kind of innoxious comprehensive utilization; The organic fertilizer raw material of high fertilizer efficiency is provided for agriculture production again.Complex fertilizer product is through using proof in a large number: increasing both production and income, recovery crop natural flavor, the three big functions of improving the soil to farm crop all have significant effect.The present invention has remarkable economic efficiency, environmental benefit and social benefit.
Fig. 1 is a liquid phase method material flow synoptic diagram of the present invention; Fig. 2 is a process flow diagram of the present invention.Clearly represented the whole process to fertilizer product among the figure from active sludge treatment.
Below by specific embodiment the present invention is carried out more detailed description:
Embodiment 1:
200 kilograms in the wet mud of the weight in wet base 80% of discharging with Sewage Plant adds 1.2 kilograms in sodium sulphite, 0.2 kilogram of dithiocarbonic anhydride (being dissolved in the alcohol), 0.8 kilogram of trisodium phosphate, 2 kilograms in tap water (being added with the four fourth fat defoamers that account for water weight 20% in the water).Heat while stirring, be heated to 80 ℃, be incubated 1 hour, normal pressure heats while stirring again, is heated to 95 ℃, be incubated 1.5 hours, normal pressure, after send to filtration, filtrate is sent to concentrated, is concentrated into remaining 100 kilograms of solution, adds 20 kilograms in technical grade urea again, 10 kilograms of diammonium phosphate, pack into after 10 kilograms in Repone K mixes in the plastic tank, promptly get 140 kilograms of liquid high-qualitys towards rare fertilizer, the N of this product: P
2O
5: K
2O: organic ratio is 8: 3.5: 4.5: 18.(organic matter is organic acid and humic acid salt).Filter residue obtains 2 kilograms, adds 0.2 kilogram of liquid sodium silicate, sends to sintering oven, through 1100 ℃ of sintering half an hour, obtains nontoxic silicate, sends to brick field brickmaking and uses.
Embodiment 2:
Method, step, prescription, technology are with embodiment 1.
500 kilograms in the wet mud of the weight in wet base 83% of discharging with Sewage Plant adds 3.0 kilograms in sodium sulphite, 0.4 kilogram of dithiocarbonic anhydride (being dissolved in the alcohol), 1.7 kilograms of trisodium phosphates, 2.5 kilograms in tap water (being added with the four fourth fat defoamers that account for water 20% in the water).Heat while stirring, be heated to 80 ℃, be incubated 1 hour; normal pressure heats while stirring again, is heated to 95 ℃; be incubated 1.5 hours, after send to filtration, filtrate is sent to concentrated; be concentrated into the strong solution of 120 kg; add 50 kilograms in urea then, 30 kilograms of diammonium phosphate, 30 kilograms in Repone K adopt " tablets press of band blade formula paddle " (patent No. ZL200520055043.6) to carry out granulation; dry then, promptly get 185 kilograms of organic-inorganic composite fertilizer roundlet particulate product.The N of this product: P
2O
5: K
2O: organic ratio is 17: 8: 11: 25 (organic is organic acid and humic acid salt).Filter residue obtains 5 kilograms, adds 0.5 kilogram of liquid sodium silicate, sends to sintering oven, through 1100 ℃ of sintering half an hour, obtains nontoxic silicate, sends to the use of cement mill system cement.
Claims (1)
1, the method for sewage factory sludge produced organic acid fertilizer comprises and cracks, decomposes, filters, concentrates and sintering, it is characterized in that manufacturing processed is:
(1) in the wet mud of weight in wet base 80～85%, the sodium sulphite, 0.2～0.6% dithiocarbonic anhydride, 1.5～2.0% trisodium phosphates, 3～5% tap water that add mud butt weight ratio 2.5～4.5% (as follows), add the four fourth fat defoamers that account for water weight 10～20% in the tap water in advance, above-mentioned material is heated to 80～85 ℃ while stirring, normal pressure, be incubated 1 hour, after be heated to 90～95 ℃ more while stirring, normal pressure is incubated 1.5～2 hours, then
(2) solution filters, and filtrate adds nitrogen, phosphorus, potassium auxiliary material, pack liquid towards rare fertilizer; Or through granulation, drying, make the particulate state organic composite fertilizer, then,
(3) adding the filter residue weight percent in the filter residue is 10% liquid sodium silicate, heat 1100 ℃, sintering half an hour, and must innoxious heavy metal silicate material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101471144A CN100551880C (en) | 2006-11-07 | 2006-11-07 | Sewage factory sludge produced organic acid fertilizer and product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101471144A CN100551880C (en) | 2006-11-07 | 2006-11-07 | Sewage factory sludge produced organic acid fertilizer and product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1966474A CN1966474A (en) | 2007-05-23 |
| CN100551880C true CN100551880C (en) | 2009-10-21 |
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ID=38075486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101471144A Expired - Fee Related CN100551880C (en) | 2006-11-07 | 2006-11-07 | Sewage factory sludge produced organic acid fertilizer and product |
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|---|---|
| CN (1) | CN100551880C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575229B (en) * | 2008-05-06 | 2014-07-16 | 刘德云 | Slow-control ecological compound fertilizer |
| RU2402511C1 (en) * | 2009-06-15 | 2010-10-27 | Закрытое Акционерное Общество "Твин Трейдинг Компани" | Method of preparing organomineral fertiliser mixture |
| CN104973995A (en) * | 2015-07-16 | 2015-10-14 | 华南理工大学 | Phosphate fertilizer taking waste as main raw material and preparation method of phosphate fertilizer |
| EP3458412A1 (en) * | 2016-05-18 | 2019-03-27 | Kemira OYJ | Production of a phosphate containing fertilizer |
| CN106588139A (en) * | 2016-11-14 | 2017-04-26 | 武汉兴天宇环境股份有限公司 | Riverway sludge treating and recycling equipment |
| CN107253883B (en) * | 2017-07-04 | 2020-12-15 | 黄酩皓 | Bullet fertilizer for catapult fertilization produced by using activated sludge |
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2006
- 2006-11-07 CN CNB2006101471144A patent/CN100551880C/en not_active Expired - Fee Related
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| CN1966474A (en) | 2007-05-23 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Green bestkind Puning City Forestry Development Co. Ltd. Assignor: Luo Jianquan Contract fulfillment period: 2010.1.6 to 2026.11.6 contract change Contract record no.: 2010440000119 Denomination of invention: Sewage factory sludge produced organic acid fertilizer and its product Granted publication date: 20091021 License type: Exclusive license Record date: 2010.1.11 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2010.1.6 TO 2026.11.6; CHANGE OF CONTRACT Name of requester: PUNING CITY LVBAOJIA FORESTRY DEVELOPMENT CO., LTD Effective date: 20100111 |
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| DD01 | Delivery of document by public notice |
Addressee: Luo Jianquan Document name: Notification to Pay the Fees |
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Granted publication date: 20091021 Termination date: 20101107 |