CN1562904A - Method for changing sludge to organic fertilizer - Google Patents
Method for changing sludge to organic fertilizer Download PDFInfo
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- CN1562904A CN1562904A CNA2004100303458A CN200410030345A CN1562904A CN 1562904 A CN1562904 A CN 1562904A CN A2004100303458 A CNA2004100303458 A CN A2004100303458A CN 200410030345 A CN200410030345 A CN 200410030345A CN 1562904 A CN1562904 A CN 1562904A
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- mud
- fertilizer
- dirty 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
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Abstract
The invention relates to a mud treatment technology, particularly to method transforming mud into organic fertilizer. In the invention, mud is stirred to pulp, then is screened, feces of birds and beasts is dried and fine grinder, then to be mixed and smelted with mud, cut and prilled, the grains are dried by drying machine, then to be packed.
Description
Technical field
The present invention relates to a kind of dirty sludge treatment technology, particularly dirty mud transfers the method for fertilizer to.
Background technology
Current, along with the construction development of industrial production and urban facilities, the precipitation bed mud of the mud of municipal sewage system alluvial and the sewage sludge of some organism factory and river, river, lake, storehouse, the pool, ditch, canal is more and more.Usually these dirty mud contain a large amount of foreign material, and industry and domestic sludge also contain heavy metal, harmful viral bacterium.At present, the processing of dirty mud is to handle by modes such as burning, landfill, biological decrement and compost, and these treatment processs need very high facility investment and processing cost, and can be difficult to because of the venomous injurant in the mud handle and cause secondary pollution.
Usually be rich in organic matter, nitrogen, phosphorus, potassium in the dirty mud, the physics clay of doing dirty mud can improve soil aggregate, and therefore, people become a kind of traditional treatment process to dirty mud as improving the soil, increase soil fertility.But this process for treating sludge is too simple, lack purification sterilization to harmful bacterium in the dirty mud, in the course of time, the accumulation of harmful viral bacterium can cause water pollution in the soil, and then influences crop growth, growth or and make harmful content of agricultural-food surpass hygienic standard.
The patent of invention of CN1393427 " production line for preparing compound fertilizer from sludge " discloses mud has been removed poison purification oven dry to losing 90% left and right sides moisture, is broken into the method that grain makes the mud compound organic fertilizer then.Drying and dewatering method and required equipment that this patented method adopts are not suitable for the dirty mud that weave construction is thin, performance is tough, water content is high, and dirty mud is dried 10% water content, need to consume a large amount of energy, lack using value.
Summary of the invention
Purpose of the present invention just provides a kind ofly can rationally utilize dirty mud, realizes the benign cycle of matter and energy, dirty mud is converted into the method for fertilizer.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of dirty mud transfers the method for fertilizer to, the steps include:
(1). dirty mud is through the broken pulping of breakage pump, and slurry sieves;
(2). brid guano drying, fine grinding;
(3). dry fine grinding brid guano and dirty mud is mixing;
(4). cut mechanically granulation, 100 ℃～120 ℃ oven dry of drying machine, packing.
Wherein, 1: 1 weight of dry fine grinding brid guano and dirty mud (in dewatered sludge) is mixed in the step (3).
In mixture, can also add the urea (N46%) of nitrogen content 46% or nitrogenous phosphorus potassium total amount and be 45% composite fertilizer (NPK45%).Addition is 4.0%～5.0% of a dried mud.
Dig dirty mud clearly and pack the mud shipping into to agitated pool, with the breakage pump fragmentation, the scalping of dirty mud suction agitated pool, foreign material are transported outward landfill with the non blocking type sludge pump; Dirty mud is after dusting cover, and impurity can be used as the capital construction backfill.
After dirty mud sieved, add equiponderant dry fine grinding brid guano (chicken, duck, goose excrement) in dried mud, add 4.0%～5.0% urea N46% or NPK45% again, above-mentioned material thorough mixing in mixing roll is even.Extrude by the outlet opening place then, and be cut into the about 2mm～8mm of diameter by cutting machine, length is the particle of 4mm～10mm, after conveying belt is sent into drying machine drying, the temperature of dryer discharge port is controlled to be 100 ℃～120 ℃, with kill harmful virus and bacterium, ensure the safe in utilization of fertilizer.
The present invention also can adopt following steps to transfer dirty mud to fertilizer:
After dirty mud sieves, deliver to sludge sump, add dried brid guano, addition is dried mud amount 20%, and is mixing after pressure filter press filtration to water ratio is 55%～65% mud cake, so that transportation.
When adding for the first time dried brid guano, can also add in right amount by stalk and loose pulverizing material such as rice chaff or rapeseed cake quality, to increase voidage.
To press filterable mud cake to pulverize, and be added into dry fine grinding brid guano for the second time, addition is 80% of press filtration mixture (in a dried mud amount) weight.At this moment, add urea N46% or NPK45%, even above-mentioned material thorough mixing in mixing roll then.Material after mixing is extruded from outlet opening, is cut into the about 2mm～8mm of diameter through cutting machine, and length is the cylindrical particle of 4mm～10mm, and after conveying belt is sent into drier, the temperature of dryer discharge port is controlled at 100 ℃～120 ℃.
Usually, dirty mud is after sieving, and the voidage of table mud is low, viscosity is high, if directly the pressure filter interior conduit is stopped up in the press filtration meeting, and very easily sticks together filter cloth.So a certain amount of dried brid guano of fusion of the present invention or plant straw powder particle, the physical property that this helps improving dirty mud makes press filtration comparatively smooth and easy.
The fertilizer of the inventive method preparation inserts various elements and is mixed with various organic compound mixing fertilizers or fertilizer special for vegetable applicable to the floods and droughts crop, also can add sesame residues, pig manure, dish cake, dregs of fat tankage etc., with adapted soil and plant requirement preferably.
The present invention transforms the fertilizer method with original dirty mud and compares, and beneficial effect is embodied in following:
1, overcome the big shortcoming of energy expenditure of drying dirty mud in original treatment technology separately.
The present invention is directed to mud and have that weave construction is thin, performance is tough, water ratio is high, the characteristic of bulk specific gravity, has the characteristic that weave construction is thick, performance is loose, water ratio is low, volume ratio is light with dried brid guano (abrasive dust), both are one to one mixing, produce neutral value, make like this material in processing such as press filtration, mixing, granulations than being easier to, thereby processing cost is reduced.
2, dried brid guano adds in the dirty mud, can prevent the loss of brid guano fertility, reaches the slowly-releasing of fertilizer efficiency, satisfies the needs of plant-growth.
3, dirty mud can make dirty amount of sludge reduce through sieving and mechanism filter-pressing, reduces the place and takies, and simultaneously dirty mud press filtration is become cake, is convenient to transportation.
Embodiment
Below in conjunction with to the west of lake silt be treated to example, the present invention is further described.
Mud mud containing rate 12.02%, water ratio 87.98%, West Lake mud and dried poultrymanure organic matter, full nitrogen, full phosphorus, full potassium content see the following form:
The full potassium % of the organic full phosphorus % of the full nitrogen % of % of raw material total void rate %
Dirty mud 32.6 25.3 1.17 0.08 0.02
Dried poultrymanure 67.3 58 2.8 2.3 2.5
Rice chaff ash 85.9 0.75 0.003 0.002 0.015
Embodiment 1
(1) broken pulping sieves: bucker-type (grab type) snagboat is removed bed mud, finishes the removing of table mud again with suction-cutter dredger, transports to agitated pool; The breakage pump fragmentation does not have the sludge pump of obstruction mud suction agitated pool is crossed scalping, after the scalping, stirs, and suction second agitated pool is crossed dusting cover again.
The foreign material of scalping are transported to refuse landfill, and the impurity of dusting cover can be as the capital construction backfill.
(2) brid guano and mud are mixing: get mud 2.58M
2, water ratio is 75%, includes 1000 kilograms in dried mud; Add 1000 kilograms of dry chicken manures, water ratio is 5.5%; Urea NPK45%43.5kg, above three is even at the mixing roll thorough mixing.
(3) extrude cutting: mixing cutting machine is cut into the about 6mm of diameter after the outlet opening place extrudes, and length is the cylindrical particle of 10mm;
(4) drying and packaging: cylindrical particle is sent into drying machine drying through conveying belt, and the temperature of dryer discharge port is 120 ℃.Oven dry back packing.
After testing: the fertilizer total void rate that obtains is 69.8%, and water ratio is less than 6%; Organic matter is 40%; Nitrogenous: 2%; Phosphorous: 0.9%; Contain potassium: 1.25%.
Embodiment 2:
(1) dig mud clearly, pulping sieves: bucker-type (grab type) snagboat is removed bed mud, finishes the removing of table mud again with suction-cutter dredger, transports to agitated pool; The breakage pump fragmentation does not have the sludge pump of obstruction mud suction agitated pool is crossed scalping, stirs after the scalping, and suction second agitated pool is crossed dusting cover.
The foreign material of scalping are transported to refuse landfill, and the impurity of dusting cover can be as the capital construction backfill.
(2) mixing press filtration for the first time: with mud suction capacity is 200～250M
2Sludge sump adds dried poultrymanure abrasive dust and an amount of straw powder material, rice chaff ash.The add-on of dried poultrymanure is 20% of the contained dried mud weight of dirty mud, mud 5.3674M
2, contain 1000 kilograms in dried mud, 200 kilograms of dried poultrymanures, about 0.24M
2, be 62% with the mud press filtration to water ratio after mixing.
(3) for the second time mixing: mud 2.32895M after the press filtration
2, water ratio is 62%, contains 200 kilograms of 1000 kilograms in dried mud and dried poultrymanures; Add 800 kilograms of dry chicken manures, about 0.96M
2, water ratio is 5.5%; Add urea N46%43.5kg; Even through the mixing roll thorough mixing;
(4) extrude cutting: mixing after portal and extrude, cutting machine is cut into and is the about 4mm of diameter, and length is the particle of 8mm;
(5) granulation oven dry: the cylindrical particle after will cutting is sent into drying machine drying through conveying belt, and the temperature of dryer discharge port is 110 ℃.
After testing: the fertilizer total void rate that obtains is 69.8%, and organic matter is 40%; Nitrogenous: 2%; Phosphorous: 0.9%; Contain potassium: 1.25% pH value: 7;
Claims (5)
1, a kind of dirty mud transfers the method for fertilizer to, it is characterized in that step is:
(1). the broken pulping of dirty mud, slurry sieves;
(2). brid guano drying, fine grinding;
(3). dry fine grinding brid guano and dirty mud are mixing;
(4). cutting granulation, the oven dry of pellet drying machine, packing.
2, mud according to claim 1 transfers the method for fertilizer to, it is characterized in that dry brid guano add-on equates with the butt amount of dirty mud in the step (3).
3, dirty mud according to claim 1 transfers the method for fertilizer to, can add urea or nitrogen-phosphorus-potassium compound fertilizer in mixing, and addition is 4.0%～5.0% of a dried mud.
4, dirty mud according to claim 1 and 2 transfers the method for fertilizer to, it is characterized in that step (3) can mix at twice, and dry brid guano add-on is the 20% mixing of dirty mud butt amount for the first time, and press filtration becomes cake; Dry brid guano add-on is 80% of a dirty mud butt amount for the second time, through mixing, and the cut mechanically granulation.
5, dirty mud according to claim 1 transfers the method for fertilizer to, and the temperature that it is characterized in that the dryer discharge port is 100 ℃～120 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100303458A CN1332912C (en) | 2004-03-21 | 2004-03-21 | Method for changing sludge to organic fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100303458A CN1332912C (en) | 2004-03-21 | 2004-03-21 | Method for changing sludge to organic fertilizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1562904A true CN1562904A (en) | 2005-01-12 |
| CN1332912C CN1332912C (en) | 2007-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100303458A Expired - Fee Related CN1332912C (en) | 2004-03-21 | 2004-03-21 | Method for changing sludge to organic fertilizer |
Country Status (1)
| Country | Link |
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| CN (1) | CN1332912C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101531554A (en) * | 2009-04-10 | 2009-09-16 | 陈亮远 | Novel granulation method for producing fertilizers |
| CN102603424A (en) * | 2012-04-17 | 2012-07-25 | 江苏花海农业科技有限公司 | Method for producing ecological environment-protecting particle nutritive soil by utilizing lake sludge |
| CN102603423A (en) * | 2012-04-17 | 2012-07-25 | 江苏花海农业科技有限公司 | Method for producing ecological environment-protecting nutritive soil by utilizing dry-basis lake sludge |
| CN102617237A (en) * | 2012-04-05 | 2012-08-01 | 江苏花海农业科技有限公司 | Method for producing ecological environment-friendly nutrition soil by using lake sludge |
| CN102627500A (en) * | 2012-04-17 | 2012-08-08 | 江苏花海农业科技有限公司 | Method for producing ecological environment protection water retention nutrient soil by using lake silt |
| CN102786340A (en) * | 2012-04-26 | 2012-11-21 | 江苏花海农业科技有限公司 | Method for producing nursery with characteristics of ecology and environmental protection by using lake sludge |
| CN102786341A (en) * | 2012-04-26 | 2012-11-21 | 江苏花海农业科技有限公司 | Method for producing nursery with characteristics of ecology, environmental protection and water retention by using lake sludge |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2339585A1 (en) * | 1976-01-27 | 1977-08-26 | Genoud Elise | Fertiliser for regenerating humic material in the soil - contains cattle- and poultry droppings and organic sludge from water treatment |
| RU2086521C1 (en) * | 1993-07-28 | 1997-08-10 | Лимнологический институт СО РАН | Method of organomineral fertilizer producing |
| CN1097724A (en) * | 1994-06-08 | 1995-01-25 | 姚广忠 | The method of utilizing municipal sludge, ight soil to produce highly efficient granular organic fertilizer |
| CN1142121C (en) * | 2001-09-20 | 2004-03-17 | 郭高友 | Technological process of producing high-quality organic fertilizer with domestic garbage |
| CN1243693C (en) * | 2002-12-20 | 2006-03-01 | 李彦峰 | Organic compound fertilizer for flowers and plants |
-
2004
- 2004-03-21 CN CNB2004100303458A patent/CN1332912C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101531554A (en) * | 2009-04-10 | 2009-09-16 | 陈亮远 | Novel granulation method for producing fertilizers |
| CN102617237A (en) * | 2012-04-05 | 2012-08-01 | 江苏花海农业科技有限公司 | Method for producing ecological environment-friendly nutrition soil by using lake sludge |
| CN102617237B (en) * | 2012-04-05 | 2013-10-09 | 江苏花海农业科技有限公司 | Method for producing ecological environment-friendly nutrition soil by using lake sludge |
| CN102603424A (en) * | 2012-04-17 | 2012-07-25 | 江苏花海农业科技有限公司 | Method for producing ecological environment-protecting particle nutritive soil by utilizing lake sludge |
| CN102603423A (en) * | 2012-04-17 | 2012-07-25 | 江苏花海农业科技有限公司 | Method for producing ecological environment-protecting nutritive soil by utilizing dry-basis lake sludge |
| CN102627500A (en) * | 2012-04-17 | 2012-08-08 | 江苏花海农业科技有限公司 | Method for producing ecological environment protection water retention nutrient soil by using lake silt |
| CN102603423B (en) * | 2012-04-17 | 2013-10-09 | 江苏花海农业科技有限公司 | Method for producing ecological environment-protecting nutritive soil by utilizing dry-basis lake sludge |
| CN102786340A (en) * | 2012-04-26 | 2012-11-21 | 江苏花海农业科技有限公司 | Method for producing nursery with characteristics of ecology and environmental protection by using lake sludge |
| CN102786341A (en) * | 2012-04-26 | 2012-11-21 | 江苏花海农业科技有限公司 | Method for producing nursery with characteristics of ecology, environmental protection and water retention by using lake sludge |
| CN102786340B (en) * | 2012-04-26 | 2014-07-23 | 江苏农盛废弃物循环再利用有限公司 | Method for producing nursery with characteristics of ecology and environmental protection by using lake sludge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1332912C (en) | 2007-08-22 |
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Granted publication date: 20070822 Termination date: 20100321 |