CN101381249B - Method for preparing sludge frozen composite fertilizer and sludge frozen composite fertilizer - Google Patents
Method for preparing sludge frozen composite fertilizer and sludge frozen composite fertilizer Download PDFInfo
- Publication number
- CN101381249B CN101381249B CN2008102242349A CN200810224234A CN101381249B CN 101381249 B CN101381249 B CN 101381249B CN 2008102242349 A CN2008102242349 A CN 2008102242349A CN 200810224234 A CN200810224234 A CN 200810224234A CN 101381249 B CN101381249 B CN 101381249B
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- mud
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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 relates to a method for preparing a frozen sludge compound fertilizer. 1,000,000 parts of sludge by weight is added with 5 00 to 1,200 parts of a flocculating agent by weight and 5 to 10 parts of heavy metal chelon by weight; the sludge ingredient is positioned in a stirring device for stirring and is subjected to concentration/dehydration; the obtained dehydrated sludge is positioned in a drying device, dried and disinfected; a dry sludge material according to 1,000 parts by weight is added with 50 to 100 parts by weight of a water and moisture retention agent, 10 to 1,000 parts by weight of farmyard manure, humic acid, nitrogenous fertilizer, phosphate fertilizer or potash fertilizer, 50 to 100 parts by weight of bamboo vinegar liquid and 2 to 10 parts by weight of powderyactivated carbon (PAC); and the sludge ingredient is positioned in the stirring device for stirring to manufacture into the frozen sludge compound fertilizer. The aim of the invention is to provide the method for preparing the frozen sludge compound fertilizer which has the advantages of small investment, small occupied area, energy conservation, environmental pollution, safety, reliability and harmlessness, can effectively improve soil and increase the yield of agricultural and forestry crop and the frozen sludge compound fertilizer .
Description
Technical field
The present invention relates to a kind of sludge reduction with waterworks and/or Sewage Plant, safe and resource treatment technique, specifically a kind of mud with waterworks and/or Sewage Plant are processed into the preparation method and the complex fertilizer product of the composite fertilizer that farming, woods use.
Background technology
Contain a large amount of organism and abundant nutritive substances such as nitrogen phosphorus in the mud of water purification/sewage water treatment plant, but also may contain objectionable constituent such as heavy metal, malignant bacteria, virus and parasite simultaneously, if can not appropriate in addition processing, may cause environmental pollution.The processing mode of existing mud to water purification and/or sewage water treatment plant comprises: landfill, burn back landfill, compost etc.Compost wherein is to utilize to add a certain proportion of stalk, straw, wood chip etc., the process of utilizing the microorganism in the mud to ferment in mud.If but compost adopts static stacking technology, its production cycle is longer, and land occupation is a lot, and bigger to surrounding environment influence; If the investment construction fermentation cabin, then facility investment and production cost will increase considerably.
Summary of the invention
Purpose provided by the invention provides a kind of less investment, and land used is few, energy-conserving and environment-protective, and production cost of products is low, and its composition can effectively be improved the soil, and improves the preparation method and the sludge frozen composite fertilizer of the sludge frozen composite fertilizer of farming, woods crop yield.
The invention provides a kind of preparation method of sludge frozen composite fertilizer, comprise the steps:
(1) adds the flocculation agent PAM of 500-1200 weight part according to the mud of the water purification of 1000000 weight parts and/or sewage water treatment plant and the heavy metal chelant of 5-10 part weight is prepared burden;
(2) the mud batching that step (1) is obtained places whipping appts to carry out all mixing stirring, and then places concentrated-dewatering unit to dewater the mud batching;
(3) mud of the dehydration that step (2) is obtained places drying unit, dries and sterilizes with drying unit, and the temperature of oven dry is 90 ℃-120 ℃, and the water content that dried disinfecting is handled back mud batching is 30%-80%;
(4) dry the water conservation wetting Agent for Printing Inks that adds the 50-100 weight part in the material by 10000 weight parts at the mud that step (3) obtains, any one or its combination in 10-1000 weight part farm manure or humic acid or nitrogenous fertilizer or phosphate fertilizer or the potash fertilizer, and the bamboo vinegar liquid of adding 50-100 weight part and the powdered carbon (PAC) of 2～10 weight parts, place whipping appts to stir the mud batching, make sludge frozen composite fertilizer.
Sludge frozen composite fertilizer of the present invention obtains described sludge frozen composite fertilizer according to the preparation method of described sludge frozen composite fertilizer.
The preparation method of sludge frozen composite fertilizer of the present invention, adopt the distinctive prescription of the present invention, useful, useful earth, nutrition and moisture content etc. in the mud with water purification and/or sewage water treatment plant are kept as far as possible, again through removing, kill and solidifying oxious component, pathogenic agent and heavy metal etc., resulting sludge frozen composite fertilizer of the present invention is particularly useful for flowers, lawn, forest land, and nutritive ingredient wherein can effectively promote the growth of plant, improve soil, reduce soil erosion.The preparation method of sludge frozen composite fertilizer of the present invention and sludge frozen composite fertilizer are that mud is considered as resource, make mud safety return the earth, recycle valuably.Compare with the compost production technique that adopts static stacking technology, the preparation method's of sludge frozen composite fertilizer of the present invention is with short production cycle, and land occupation is few, and environmental protection more; Compare with the compost production technique of investment construction fermentation cabin, the preparation method's of sludge frozen composite fertilizer of the present invention facility investment and production cost have minimizing significantly, and the also relatively low cost of the production of product is low.
Below the preparation method of sludge frozen composite fertilizer of the present invention and the embodiment of sludge frozen composite fertilizer are described in further detail.
Embodiment
Embodiment 1:
The preparation method of sludge frozen composite fertilizer of the present invention comprises the steps:
(1) adds the flocculation agent PAM (polyacrylamide) of other numerical value weight parts between 500 weight parts or 600 weight parts or 700 weight parts or 800 weight parts or 900 weight parts or 1000 weight parts or 1200 weight parts or the 500-1200 except above-mentioned numerical value according to the mud of the water purification of 1000000 weight parts and/or sewage water treatment plant and the heavy metal chelant of 5 or 6 or 7 or 8 or 9 or 10 parts of weight is prepared burden; Heavy metal chelant is used for the curing heavy metal pollutant component.
(2) mud of the dehydration that step (1) is obtained batching places whipping appts to carry out all mixing stirring, and then places concentrated-dewatering unit to dewater the mud batching;
(3) the sludge dewatering material that step (2) is obtained places drying unit, carry out dried disinfecting, oven dry and disinfectant temperature are other temperature between 90 ℃ or 100 ℃ or 110 ℃ or 120 ℃ or 90-120 ℃, and the water content of drying, disinfecting back mud batching is 30%-80%;
(4) dry the water conservation wetting Agent for Printing Inks that adds 50 or 60 or 80 or 100 weight parts in the material by 10000 weight parts at the mud that step (3) obtains, any one or its combination in 10 or 200 or 500 or 1000 weight part farm manures or humic acid or nitrogenous fertilizer or phosphate fertilizer or the potash fertilizer, and add the bamboo vinegar liquid of 50 or 60 or 80 or 100 weight parts and the powdered carbon (PAC) of 2 or 5 or 8 or 10 weight parts, place whipping appts to stir the mud batching, make sludge frozen composite fertilizer.
If more toxic heavy metal element is arranged in the mud, then prepared sludge frozen composite fertilizer can be used for flowers, lawn, forest land, avoid toxic heavy metal element to enter human food chain.
Above-mentioned heavy metal chelant comprises polyamines class heavy metal chelant and polyethyleneimine: amine heavy metal chelant, this heavy metal chelant has trap heavy metals ionic efficient when handling the heavy metal refuse high and kind is many, the type of handling the heavy metal refuse is extensive, and the stabilization product is not subjected to the advantages such as influence of refuse pH variation.
Heavy metal chelant can adopt different types of polyamines or polymine and dithiocarbonic anhydride reaction to obtain, heavy metal chelant and heavy metal ion reaction, generate high-molecule chelated thing, heavy metal chelant is to utilize the dithiocarboxy functional group on its polymer long-chain to capture heavy metal ion in the refuse with the form of ionic linkage and covalent linkage, and the stabilization product of generation is that a kind of sky is asked netted high-molecule chelated thing.
Heavy metal chelant specifically has EP 110, TMT-15 organosulfur etc.
Sludge frozen composite fertilizer of the present invention obtains described sludge frozen composite fertilizer according to the preparation method of above-mentioned sludge frozen composite fertilizer.
Sludge frozen composite fertilizer of the present invention, be that soil in the mud and moisture etc. are considered as precious resources, a kind of less investment is provided, land used is few, energy-conserving and environment-protective, safe and reliable is innoxious, the low-cost comprehensive utilization technique of resource utilization, product can effectively be improved the soil, and improves the preparation method and the sludge frozen composite fertilizer of the sludge frozen composite fertilizer of farming, woods crop yield.
Claims (2)
1. the preparation method of sludge frozen composite fertilizer is characterized in that comprising the steps:
(1) adds the flocculation agent PAM of 500-1200 weight part according to the mud of the water purification of 1000000 weight parts and/or sewage water treatment plant and the heavy metal chelant of 5-10 part weight is prepared burden;
(2) the mud batching that step (1) is obtained places whipping appts to carry out all mixing stirring, and then places concentrated-dewatering unit to dewater the mud batching;
(3) mud of the dehydration that step (2) is obtained batching places drying unit to dry and sterilize, and the temperature of oven dry is 90 ℃-120 ℃, and the water content that dried disinfecting is handled back mud batching is 30%-80%;
(4) dry the water conservation wetting Agent for Printing Inks that adds the 50-100 weight part in the material by 10000 weight parts at the mud that step (3) obtains, any one or its combination in 10-1000 weight part farm manure or humic acid or nitrogenous fertilizer or phosphate fertilizer or the potash fertilizer, and the bamboo vinegar liquid of adding 50-100 weight part and the powdered carbon (PAC) of 2～10 weight parts, place whipping appts to stir the mud batching, make sludge frozen composite fertilizer.
2. the preparation method according to the described sludge frozen composite fertilizer of claim 1 obtains described sludge frozen composite fertilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102242349A CN101381249B (en) | 2008-10-14 | 2008-10-14 | Method for preparing sludge frozen composite fertilizer and sludge frozen composite fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102242349A CN101381249B (en) | 2008-10-14 | 2008-10-14 | Method for preparing sludge frozen composite fertilizer and sludge frozen composite fertilizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101381249A CN101381249A (en) | 2009-03-11 |
| CN101381249B true CN101381249B (en) | 2011-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102242349A Expired - Fee Related CN101381249B (en) | 2008-10-14 | 2008-10-14 | Method for preparing sludge frozen composite fertilizer and sludge frozen composite fertilizer |
Country Status (1)
| Country | Link |
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| CN (1) | CN101381249B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010108B (en) * | 2010-10-08 | 2012-04-18 | 聊城金太阳生物化工有限公司 | Industrial sludge treatment method and method for preparing various fertilizers by using treated industrial sludge |
| CN104529678B (en) * | 2015-02-01 | 2017-11-28 | 王崇高 | A kind of composite fertilizer that can administer soil pollution |
| CN106673399B (en) * | 2015-11-09 | 2019-06-14 | 四川环奥污泥处置技术有限公司 | Municipal sludge is mixed to adjust modification agent, sludge semi-dry method |
| CN107500963A (en) * | 2017-08-25 | 2017-12-22 | 洛阳茂生生物技术有限公司 | The sludge fertilizer and preparation method for calacareous soil based on plant refuse |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1266832A (en) * | 2000-03-16 | 2000-09-20 | 西北农林科技大学 | Process for preparing compound organic fertilizer from municipal sludge |
| CN1418854A (en) * | 2002-12-20 | 2003-05-21 | 李彦峰 | Organic compound fertilizer for flowers and plants |
| JP2004155609A (en) * | 2002-11-05 | 2004-06-03 | Kiyomotogumi:Kk | Sludge-mixed fertilizer and method of manufacturing the same |
-
2008
- 2008-10-14 CN CN2008102242349A patent/CN101381249B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1266832A (en) * | 2000-03-16 | 2000-09-20 | 西北农林科技大学 | Process for preparing compound organic fertilizer from municipal sludge |
| JP2004155609A (en) * | 2002-11-05 | 2004-06-03 | Kiyomotogumi:Kk | Sludge-mixed fertilizer and method of manufacturing the same |
| CN1418854A (en) * | 2002-12-20 | 2003-05-21 | 李彦峰 | Organic compound fertilizer for flowers and plants |
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| Publication number | Publication date |
|---|---|
| CN101381249A (en) | 2009-03-11 |
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Granted publication date: 20110720 Termination date: 20191014 |