CN1397519A - Process for preparing organic fertilizer from sewage and sludge - Google Patents
Process for preparing organic fertilizer from sewage and sludge Download PDFInfo
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- CN1397519A CN1397519A CN02138952A CN02138952A CN1397519A CN 1397519 A CN1397519 A CN 1397519A CN 02138952 A CN02138952 A CN 02138952A CN 02138952 A CN02138952 A CN 02138952A CN 1397519 A CN1397519 A CN 1397519A
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- Prior art keywords
- fertilizer
- fermentation
- sewage sludge
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- sewage
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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
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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- Fertilizers (AREA)
Abstract
A process for preparing organic fertilizer from sewage and sludge includes collecting sludge generated by anaeratic-aeratic treating of sewage, pugging while adding alkaline regulator and swelling agent, stacking, oxygen-enriched fermenting, drying, breaking, stirring and granulating. Its advantages are broad spectrum and improving acidic soil.
Description
Technical field:
The present invention relates to the method for sewage sludge harmlessness regeneration, specifically is the industrialization technology method that city sludge is produced fertilizer.
Background technology:
The processing of sewage sludge is global big problem, and the existing decades of research of developed country is used course.China starting evening, but along with the raising of the industrial development and the level of urbanization, the treatment capacity of sewage sludge and processing rate are progressively improving, and existing total amount has reached millions of tons.
At present, there are landfill, burning, throwing sea and agricultural in countries in the world to the main mode of sludge disposal.Because landfill need take a large amount of soils, easily cause secondary pollution, and transportation and place cost of erection are high, so drawback is many.Can reach the minimizing processing though burn, secondary pollution is serious, and same investment and the high problem of process cost of existing.The sea processing is the simplest, expense is also economized though throw, and is big to environmental destruction, and various countries forbid one after another, just promise to undertake at the beginning of the Chinese government 1994, not the disposal of industrial wastes at sea, sewage and mud.Therefore, the agricultural use of sewage sludge is the processing mode that development potentiality is arranged most.
Summary of the invention:
The purpose of this invention is to provide a kind of high-level efficiency, easy to operate, the technological method of producing organic fertilizer from sludge cheaply.
Technology of the present invention is achieved in that a kind of method of sewage sludge production fertilizer, it is characterized in that method flow comprises:
1) mud system derives from the sewage of various industry and life discharging, through narrow oxygen---and the filter residue after aerobic method is handled;
2) mud adds an amount of alkaline amendment and swelling agent through the pre-treatment of biological organic fertilizer mixing roll at mixing process, quickens fermentation; The alkalescence amendment is the tankage in chlor-alkali production workshop a---salt slurry, makes full use of industrial waste, reduces the pressure to environment; Described swelling agent adopts fiber-enriched matter plant wastes such as husk, straw, waste mushroom stick, Pericarppium arachidis hypogaeae, tobacco rod, and is evenly mixing with mud after crushed, and the air content that increases mud helps aerobic fermentation, and cellulosic also participates in fermentation simultaneously.
3) carry out the fermentation of stacking oxygen enrichment again through mixing pretreated mud;
4) mud after the oxygen enrichment fermentative processing enters industrialization interlock Production Flow Chart, comprises dry materials, pulverizing, mixing stirring and granulation, and this flow process needs the supporting equipment such as drying machine, pulverizer, mixing and blending machine, tablets press that have;
5) quantitative package product.
Above-mentioned mentioned oxygen enrichment fermentation is meant the fermentation of layering stacking, needs to be furnished with vent-pipe at three positions, upper, middle and lower of buttress heap, provides the oxygen supply by supporting portable oxygen enrichment fermentation unit, to quicken fermentation maturity.Stacking fermentation, its buttress stack temperature keep 2-3 days greater than 70 ℃, and to close down various pathogenic bacterias, objectionable impuritiess such as parasitic ovum, weed seed reach sewage sludge harmlessness and handle.
The present invention is superior, and part is:
(1), turns waste into wealth elimination secondary environmental pollution, the utilization of realization recycling sludge;
(2), be rich in organic matter (organic content 〉=30%) and a certain amount of N.P.K available nutrient;
(3), produce fertilizer, not only Production Flow Chart is simple, and production cost reduces significantly, makes the more competitive and commercialization of product compared with fowl poultry movement;
(4), the fertilizer wide adaptability, remove farm crop (food crop, cash crop, fruit tree etc.) in addition, forest land, greenery patches, gardens, flowers etc. are used this product, can promote the speed of growth and improve its ornamental quality and be difficult for constituting the pollution hazard of food chain;
(5), has the effect of the structure of obviously improving the soil to sand loam soil and acid soil;
(6), owing to adopt chlor-alkali workshop tankage---the salt slurry of alkaline amendment and the two unification of binding agent, not only with low cost and can passivation mud in the activity of some heavy metal element that may exist, and do not absorbed by farm crop, solve agriculture self-pollution problem.
In addition, carry forward vigorously the development of pollution-free food for cooperating country, adopting this product is base-material, behind be mixed a spot of inorganic N, P, the K nutrient, can produce the very large capital goods in the agricultural sector of this market capacity of mixed organic manure.
By above-mentioned industrialization interlock Production Flow Chart, the fertilizer leading indicator of its production is: organic content＞30%, N+P
2O
5+ K
2O 〉=6%, PH=7-8, moisture content (free-water) 10-20%, the granular or powdery of mode of appearance.Below be two groups of different cash crop use-cases.
Embodiment:
Embodiment 1:
At sand ground plantation peanut, use this product 150-200kg/ mu, comparable routine is handled volume increase 5-10% to fertilize, but fertilizer cost only reaches the latter's 40-50%, and play the effect of improving the soil.
Embodiment 2:
On weakly alkaline cotton field, use about this product 200kg/ mu, but output gined cotton more than 130 kilograms/mu near the high yield level, handle than the chemical fertilizer of executing the equivalent nutrient, cost can reduce about 30%.
Annotate: the biological organic fertilizer mixing roll is the specific equipment that China Patent No.: ZL01 2 38800.9 is provided.
Claims (5)
1, a kind of sewage sludge is produced the method for fertilizer, it is characterized in that method flow comprises:
1) mud system derives from various industry and sanitary sewage through narrow oxygen---the filter residue after aerobic method is handled;
2) mud adds an amount of alkaline amendment and swelling agent through the pre-treatment of fertilizer mixing roll at mixing process, quickens
Fermentation;
3) carry out the fermentation of stacking oxygen enrichment again through mixing pretreated mud;
4) mud after the oxygen enrichment fermentative processing enters industrialization interlock Production Flow Chart, comprises dry materials, pulverizing, mixes
Close and stir and granulation, this flow process needs the supporting equipment such as drying machine, pulverizer, mixing and blending machine, tablets press that have;
5) quantitative package product.
2, sewage sludge according to claim 1 is produced the method for fertilizer, it is characterized in that the oxygen enrichment fermentation is meant the fermentation of layering stacking, need to be furnished with vent-pipe, provide the oxygen supply by supporting portable oxygen enrichment fermentation unit at three positions, upper, middle and lower of buttress heap.
3, sewage sludge according to claim 1 and 2 is produced the method for fertilizer, it is characterized in that the stacking fermentation, and its buttress stack temperature keeps 2-3 days greater than 70 ℃, to close down various pathogenic bacterias, objectionable impuritiess such as parasitic ovum, weed seed.
4, sewage sludge according to claim 1 is produced the method for fertilizer, it is characterized in that described alkaline amendment is the tankage in chlor-alkali production workshop a---salt slurry.
5, sewage sludge according to claim 1 is produced the method for fertilizer, it is characterized in that described swelling agent adopts fiber-enriched matter plant wastes such as husk, straw, waste mushroom stick, Pericarppium arachidis hypogaeae, tobacco rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02138952A CN1397519A (en) | 2002-08-16 | 2002-08-16 | Process for preparing organic fertilizer from sewage and sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02138952A CN1397519A (en) | 2002-08-16 | 2002-08-16 | Process for preparing organic fertilizer from sewage and sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1397519A true CN1397519A (en) | 2003-02-19 |
Family
ID=4749814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02138952A Pending CN1397519A (en) | 2002-08-16 | 2002-08-16 | Process for preparing organic fertilizer from sewage and sludge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1397519A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100434401C (en) * | 2004-08-04 | 2008-11-19 | 同济大学 | Method for sludge composting using new regulator |
| CN101823823A (en) * | 2010-03-10 | 2010-09-08 | 吕铁军 | Method for improving sludge of sewage treatment plant |
| CN101863692B (en) * | 2009-04-29 | 2013-01-02 | 岳寿松 | Method for preparing bioorganic fertilizer by using city life sludge |
| CN103183540A (en) * | 2011-12-31 | 2013-07-03 | 中粮集团有限公司 | Biological organic fertilizer and preparation method thereof |
| CN106316480A (en) * | 2016-03-12 | 2017-01-11 | 福建洋屿环保科技股份有限公司 | Method for preparing soil organic fertilizer by mixing salty mud and sludge |
| CN108476916A (en) * | 2018-04-02 | 2018-09-04 | 房海宏 | A kind of coastal sludge improvement recycling technique |
| CN108821532A (en) * | 2018-06-25 | 2018-11-16 | 钟桂冰 | Urban sludge treating method |
| CN108821543A (en) * | 2018-06-25 | 2018-11-16 | 钟桂冰 | Method for sludge treatment |
| CN108863015A (en) * | 2018-06-25 | 2018-11-23 | 钟桂冰 | The processing method of sludge containing heavy metal |
-
2002
- 2002-08-16 CN CN02138952A patent/CN1397519A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100434401C (en) * | 2004-08-04 | 2008-11-19 | 同济大学 | Method for sludge composting using new regulator |
| CN101863692B (en) * | 2009-04-29 | 2013-01-02 | 岳寿松 | Method for preparing bioorganic fertilizer by using city life sludge |
| CN101823823A (en) * | 2010-03-10 | 2010-09-08 | 吕铁军 | Method for improving sludge of sewage treatment plant |
| CN103183540A (en) * | 2011-12-31 | 2013-07-03 | 中粮集团有限公司 | Biological organic fertilizer and preparation method thereof |
| CN103183540B (en) * | 2011-12-31 | 2014-12-17 | 中粮集团有限公司 | Biological organic fertilizer and preparation method thereof |
| CN106316480A (en) * | 2016-03-12 | 2017-01-11 | 福建洋屿环保科技股份有限公司 | Method for preparing soil organic fertilizer by mixing salty mud and sludge |
| CN108476916A (en) * | 2018-04-02 | 2018-09-04 | 房海宏 | A kind of coastal sludge improvement recycling technique |
| CN108821532A (en) * | 2018-06-25 | 2018-11-16 | 钟桂冰 | Urban sludge treating method |
| CN108821543A (en) * | 2018-06-25 | 2018-11-16 | 钟桂冰 | Method for sludge treatment |
| CN108863015A (en) * | 2018-06-25 | 2018-11-23 | 钟桂冰 | The processing method of sludge containing heavy metal |
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