CN102010243A - Method for preparing organic fertilizer with municipal sludge - Google Patents
Method for preparing organic fertilizer with municipal sludge Download PDFInfo
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- CN102010243A CN102010243A CN2010105316676A CN201010531667A CN102010243A CN 102010243 A CN102010243 A CN 102010243A CN 2010105316676 A CN2010105316676 A CN 2010105316676A CN 201010531667 A CN201010531667 A CN 201010531667A CN 102010243 A CN102010243 A CN 102010243A
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- fermentation
- organic fertilizer
- municipal sludge
- sludge
- fertilizer
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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
- 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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Abstract
The invention relates to a method for preparing an organic fertilizer with municipal sludge, which comprises the steps of: firstly mixing municipal sludge with 66%-74% water content and a Furde microbe starter fully in proportion by weight of 1000:5, then putting in a fermentation pool for natural fermentation after fully mixing with sheep manure and wheat grass in proportion, overturning in the fermentation process and stopping the fermentation until accumulated temperature reaches a rang between 1450 DEG C to 1700 DEG C. Designed according to cycle of ordinary inedible plant, the method can obtain the organic fertilizer by utilizing rich microbial population in the microbe starter, taking the sheep manure as microbe adhered reproduction carriers and high voidage of the wheat grass to decompose and ferment nutrient elements in the sludge, and the organic fertilizer can effectively improve the nutrient release efficiency of the sludge, prolong the nutrient release cycle, improve the utilization efficiency of the sludge, reduce the production cost of the fertilizer, effectively improve soil structure, and accelerate the soil-ripening for newly-assarted farmlands.
Description
Technical field
The invention belongs to the fertilizer production technology field, particularly relate to a kind of method of utilizing municipal sludge to prepare organic fertilizer.
Background technology
All the time, in gardens, greenery patches, the afforestation process use of fertilizer mainly based on fermentation animal excrement, stalk landfill, its have problems into: 1, increase production cost; 2, waste capital goods in the agricultural sector; 3, the fertilizer life cycle is shorter; 4, the contribution rate to environment is lower.
In recent years, along with putting into operation of putting into operation of many municipal sewage plants, particularly some big-and-middle-sized sewage works, China is when wastewater treatment rate improves constantly, sludge yield also increases sharply, and how to handle and dispose these mud is the problem that each side is paid close attention to always.Studies show that, the nutritive substance such as organism, nitrogen, phosphorus that contains a large amount of plant-growth needs in the municipal sludge, all the time, the municipal sludge major part all is directly to apply planting site, if still not carrying out necessary processing directly applies planting site, not only can not satisfy plant to nutrient demand, the validity of its fertilizer is low, executes the field without the effect of becoming thoroughly decomposed of microorganism, can continue to decompose heating, may cause burning seedling, the microorganism in the mud may fight for nutrient with farm crop.In addition, contain a large amount of foreign material in the mud, as gravelstone grain, plastics etc., enter planting site after, this also certainly will influence growth and the Soil structure of plant.Municipal sludge is through innoxious and beneficial microorganism effect or make fertilizer again after a series of processing such as nutrient adjustment, can not only remove the foreign material in the mud like this, can also improve its fertilizer efficiency, and wherein utilizing municipal sludge to produce microbial fertilizer is a new way.At present, the fermentation pattern that the municipal sludge fermentation fertilizer is mainly carried out is to carry out hyperthermia drying after mud is dewatered, and be equipped with the auxiliary material slag, animal excrement are produced, the problem that this kind sludge manure exists is: 1, sludge fermentation is not thorough, and nutritive ingredient can not effectively be decomposed in the mud; 2,, reduced the organic nutrient content of this kind fertilizer owing to the use of slag; 3,, cause that microbial population completely loses in the fertilizer because the high temperature dehydration process; 4, this kind fertilizer organic nutrient content is lower.
Summary of the invention
The objective of the invention is to overcome the defective of above-mentioned prior art, nutrient release efficiency in a kind of effective raising mud is provided, prolong nutrient deenergized period, improve the practical efficient of mud, reduce the municipal sludge that utilizes of fertiliser production cost and produce the method for organic fertilizer.
The technical scheme of being taked is for achieving the above object:
A kind of method of utilizing municipal sludge to prepare organic fertilizer, its processing step is: the weight ratio thorough mixing of the municipal sludge of water content 66%-74% at first being pressed 1000:5 with the Fu Erde microbial starter culture, and then with putting into fermentation vat behind the ratio thorough mixing of 74%-80%:16%-18%:4%-6%, Mai Wen carries out spontaneous fermentation with the sheep excrement, carry out overturning operation in the fermenting process, when fermented product accumulated temperature value reaches 1450-1700 and spends, finish fermentation;
Above-mentioned sheep excrement will be pulverized earlier before mixing, and grinding particle size is that the largest particle diameter is less than 0.5cm;
Control bulk diameter of movement is below 1.5cm in the above-mentioned overturning process.
The present invention is according to the normal crop cycle design of non-edible plant, with the municipal sludge of water content 66%-74% at first with the Fu Erde microbial starter culture by the weight ratio thorough mixing of 1000:5 and then put into fermentation vat with sheep excrement and wheat Wen and carry out spontaneous fermentation, utilize microbial population abundant in the microbial starter culture, with the sheep excrement is microorganic adhesion breeding carrier, thereby Yi Mai Wen provides high-voidage that nutritive element in the mud is carried out decomposing and fermenting and obtains organic fertilizer again, this organic fertilizer can effectively improve Soil structure, for the farmland of the new reclamation of wasteland, the effect of accelerating soil-ripening is arranged.Organic fertilizer of the present invention from the fertilizer efficiency aspect, belongs to a kind of slow and discharges fertilizer, and the duration of validity is long, is suitable for planting the long season plant, can be such plant lasting keeping ability is provided; This fertilizer is used in the area, Ningxia, compare with conventional domestic animal fertilizer, plant early growth gesture is lower than the domestic animal fertilizer, and enter the middle and later periods, the phenomenal growth of sludge fermentation fertilizer fertilizer efficiency, the overall growth gesture is higher than domestic animal fertilizer plantation plant about 2.5%, and total plant-growth amount is higher than the 6.3%-17.2% of domestic animal fertilizer plantation plant.Sludge fermentation technology of the present invention can reduce and use fertilizer cost more than 54%, and prolongs fertilizer nutrient and reach about 120% deenergized period, and the fertilizer that uses this technology to produce can reduce the environmental stress that mud causes environment, improves the environment contribution rate.
Embodiment
At first the sheep excrement is crushed to the largest particle diameter less than 0.5cm, the municipal sludge of water content 66%-74% is at first pressed the weight ratio thorough mixing of 1000:5 with the Fu Erde microbial starter culture, and then with putting into fermentation vat behind the ratio thorough mixing of 74%-80%:16%-18%:4%-6%, Mai Wen carries out spontaneous fermentation with the sheep excrement, semi-enclosed environment is adopted in fermentation, need during the fermentation to cover with overcover, overcover is selected, take summer water-proof material to get final product, three seasons of winter in spring and autumn need take dark coverture to cover.At any time carry out the overturning operation in the fermenting process, the main purpose of overturning is further to reduce block of mud, reduce water content in the mud, making the mud granule minimize the back fully mixes with the fermentation auxiliary material, increase the overall voidage of fermented product, increase microbial population quantity as early as possible, shorten fermentation time.Amount hour can be taked manually to translate into, and measures need carry out machinery when big and translate into, and translates into and must thoroughly top and the bottom, inside and outside fully be translated into 3 times/time.
Fermentation time and overturning number of times are to determine according to the temperature of physical environment:
Summer (the 5-9 month)
| Total fate: 34 days |
| Fermentation tipping fate ratio: 1:1:1:1:1:1:1:3:3:5:5:7 |
Spring and autumn (2,3,4,10, November)
| Total fate: 57 days |
| Fermentation tipping fate ratio: 3:3:3:6:6:6:10:10:10 |
Winter (1,2, December)
| Total fate: 78 days |
| Fermentation tipping fate ratio: 3:3:3:3:8:8:8:12:12:18 |
Fermented product accumulated temperature value in each fermenting process: 1450-1700 degree in season.
Accumulated temperature method of calculation: the per day fermented product internal temperature * total fate=fermented product accumulated temperature that ferments
Fermentation ends fertilizer water content 34%-38%.
Claims (3)
1. method of utilizing municipal sludge to prepare organic fertilizer, its processing step is: the weight ratio thorough mixing of the municipal sludge of water content 66%-74% at first being pressed 1000:5 with the Fu Erde microbial starter culture, and then with putting into fermentation vat behind the ratio thorough mixing of 74%-80%:16%-18%:4%-6%, Mai Wen carries out spontaneous fermentation with the sheep excrement, carry out overturning operation in the fermenting process, when fermented product accumulated temperature value reaches 1450-1700 and spends, finish fermentation.
2. according to the described method of utilizing municipal sludge to prepare organic fertilizer of claim 1, it is characterized in that: above-mentioned sheep excrement will be pulverized earlier before mixing, and grinding particle size is that the largest particle diameter is less than 0.5cm.
3. according to the described method of utilizing municipal sludge to prepare organic fertilizer of claim 1, it is characterized in that: control bulk diameter of movement is below 1.5cm in the above-mentioned overturning process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105316676A CN102010243A (en) | 2010-11-04 | 2010-11-04 | Method for preparing organic fertilizer with municipal sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105316676A CN102010243A (en) | 2010-11-04 | 2010-11-04 | Method for preparing organic fertilizer with municipal sludge |
Publications (1)
| Publication Number | Publication Date |
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| CN102010243A true CN102010243A (en) | 2011-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2010105316676A Pending CN102010243A (en) | 2010-11-04 | 2010-11-04 | Method for preparing organic fertilizer with municipal sludge |
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| CN (1) | CN102010243A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109851405A (en) * | 2019-04-17 | 2019-06-07 | 宁夏农林科学院 | Utilize the gardens organic fertilizer and preparation method thereof of municipal sludge fermentation preparation |
| CN113016522A (en) * | 2021-03-24 | 2021-06-25 | 内蒙古蒙草生态环境（集团）股份有限公司 | Method for planting corn by partially replacing chemical fertilizer with organic fertilizer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323764A (en) * | 2000-05-15 | 2001-11-28 | 王听林 | Prepn. process and equipment for microbial and biochemical organic fertilizer |
| CN1785924A (en) * | 2005-11-04 | 2006-06-14 | 袁登辉 | Amino acid organic fertilizer, its preparation method and use |
| CN1793073A (en) * | 2005-11-15 | 2006-06-28 | 青岛地恩地生物科技有限公司 | Process for mfg. biological organic fertilizer by urban mud |
| CN101157587A (en) * | 2007-09-21 | 2008-04-09 | 天津市北方绿业生态科技有限公司 | Alkali soil modification fertility intensifying amendment and preparation method thereof |
| CN101215199A (en) * | 2008-01-15 | 2008-07-09 | 杭州师范大学 | Method for producing compost |
-
2010
- 2010-11-04 CN CN2010105316676A patent/CN102010243A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323764A (en) * | 2000-05-15 | 2001-11-28 | 王听林 | Prepn. process and equipment for microbial and biochemical organic fertilizer |
| CN1785924A (en) * | 2005-11-04 | 2006-06-14 | 袁登辉 | Amino acid organic fertilizer, its preparation method and use |
| CN1793073A (en) * | 2005-11-15 | 2006-06-28 | 青岛地恩地生物科技有限公司 | Process for mfg. biological organic fertilizer by urban mud |
| CN101157587A (en) * | 2007-09-21 | 2008-04-09 | 天津市北方绿业生态科技有限公司 | Alkali soil modification fertility intensifying amendment and preparation method thereof |
| CN101215199A (en) * | 2008-01-15 | 2008-07-09 | 杭州师范大学 | Method for producing compost |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109851405A (en) * | 2019-04-17 | 2019-06-07 | 宁夏农林科学院 | Utilize the gardens organic fertilizer and preparation method thereof of municipal sludge fermentation preparation |
| CN113016522A (en) * | 2021-03-24 | 2021-06-25 | 内蒙古蒙草生态环境（集团）股份有限公司 | Method for planting corn by partially replacing chemical fertilizer with organic fertilizer |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110413 |