CN102557768A - Circularly-deodorizing granulated conditioner and application thereof in sludge compost - Google Patents
Circularly-deodorizing granulated conditioner and application thereof in sludge compost Download PDFInfo
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- CN102557768A CN102557768A CN2011104359128A CN201110435912A CN102557768A CN 102557768 A CN102557768 A CN 102557768A CN 2011104359128 A CN2011104359128 A CN 2011104359128A CN 201110435912 A CN201110435912 A CN 201110435912A CN 102557768 A CN102557768 A CN 102557768A
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- deodorizing
- amendment
- circulation
- prilling
- conditioner
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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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- 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
Abstract
The invention belongs to the field of resource recovery of solid waste, relates to a circularly-deodorizing granulated conditioner and the application thereof in sludge compost, solves the problems that nitrogen in the sludge compost is lost, ammonia gas and hydrogen sulfide volatilize to produce odor and the nutrient content of a finished product is relatively low, and also solves the problem that the conventional deodorant is greatly consumed and difficult to be recycled. The circularly-deodorizing granulated conditioner is provided with a wood-based homogeneous body with a particle size of 0.5 to 10bcm, which is adhered with aromatic organic acid such as lactic acid, malic acid, tartaric acid, and the like. The application of the circularly-deodorizing granulated conditioner comprises the steps that (1) sludge is mixed with the conditioner to obtain a mixed material; (2) the mixed material is fermented at a high temperature; and (3) the mixed material is discharged after being fermented and the conditioner is screened out; the screening rate is above 98 percent, the nitrogen loss is reduced by above 65 percent and the nitrogen nutrient content of the finished product is increased by above 25 percent. The circularly-deodorizing granulated conditioner achieves high nitrogen protection efficiency, can circularly deodorize the sludge compost, can be degraded, can regulate the carbon-nitrogen ratio (C/N) of the material and can be applied to the treatment of the sludge compost, and the product quality cannot be reduced by residues.
Description
Technical field
The present invention relates to a kind of deodorizing prilling amendment capable of circulation and the application in sludge composting thereof.
Background technology
In recent years, along with The development in society and economy, industry and sewage quantity discharged are increasing, and it is imperative to build more sewage works.Activated sludge process is present most widely used sewage disposal technology, but its maximum drawback is to produce a large amount of excess sludges.By the end of the year 2010; China's urban wastewater treatment firm has built up more than 2500; Sewage treatment capacity reaches 1.22 billion cubic meter/skies, and excess sludge production accounts for 0.05～0.07% (in the water ratio 80% wet mud) of handling the water yield, makes the sludge yield of China be about 3,000 ten thousand tons/year.Contain trace elements such as required nutritive element of plants such as abundant N, P, K and the requisite boron of plant-growth, manganese, aluminium, copper, zinc in the excess sludge; Contain hazardous and noxious substances such as a large amount of pathogenic bacterias, parasite (ovum), heavy metal simultaneously; If do not deal carefully with and dispose, discard in environment severe contamination water, atmosphere, soil; Endanger ecotope and human health, cause the significant wastage of resource simultaneously.
At present, the sludge treatment method of disposal mainly contains sanitary landfill, compost, burning etc.Wherein sanitary landfill need take a large amount of soils trucking costs a large amount of with cost; Need further dehydration structural to increase it; And the mud landfill produce ooze draining, foul smell and also can worsen the environment around the landfill yard, it is more and more littler that proportion is disposed in mud sanitary landfill in recent years.Burn because moisture percentage in sewage sludge is high, the moisture vaporization needs to consume a large amount of heat energy, causes energy consumption high, and treatment facility investment and running cost are high, but also have the smoke pollution problem, are difficult to apply.And compost is that organic matter degradation is the process of the stable matter of becoming thoroughly decomposed in the artificial promotion refuse of mikrobes such as the bacterium that utilizes occurring in nature extensively to exist, actinomycetes.The compost finished product can extensively be applied to farmland, nursery, improves soil nutrient.Compost has the pathogenic bacteria of killing because of its processing cost is cheap, degradable organic pollutant; Heavy metal-passivated activity is produced effects such as fertilizer, has good social benefit and economic benefit; One of effective way that has become that recycling sludge handles is used widely in the whole nation.
But in the sludge composting process, produce the stench gaseous pollutant toward the contact meeting, like ammonia, hydrogen sulfide etc., severe contamination plant area and surrounding enviroment.And because the nitrogen in the mud organic matter is converted into the ammonia volatilization through ammonification; Cause the loss of nitrogen nutrient in the composting process; Reduce the fertilizer efficiency of compost finished product, directly have influence on the competitive power of compost finished product on fertilizer market, become the important factor of restriction sludge composting industry development.So ammonia release is stink control and the key that improves the nitrogen retention rate in the control sludge composting process.
Summary of the invention
The object of the present invention is to provide a kind of deodorizing prilling amendment capable of circulation and the application in sludge composting thereof.With loss, the stink that reduces ammonia and hydrogen sulfide volatilization generation that reduces nitrogen in the sludge high temperature aerobic fermenting process, the available nutrient content that increases the compost finished product; Solved simultaneously existing reodorant consumption big, be difficult to recycle, increase the problem of sludge composting cost.
Deodorizing prilling amendment capable of circulation provided by the present invention is that to be attached with organic acid particle diameters such as lactic acid, oxysuccinic acid, tartrate be the wooden homogeneous body of 0.5～10cm.
Said deodorizing prilling amendment capable of circulation prepares as follows: exsiccant timber is processed through mechanical means such as crusher, shapers; Obtaining particle diameter is the wooden homogeneous body (spheroid or square) of 0.5～10cm; Then wooden homogeneous body being put into concentration is the organic acid soln that 10～60% lactic acid, oxysuccinic acid, tartrate etc. have fragrance; Soak after 5～20 hours and take out, airing or oven dry promptly obtain deodorizing prilling amendment capable of circulation to anhydrous.This amendment has that particle diameter is identical with shape, light weight, good fluidity, be prone to screening, can be recycled; Good water absorption, adjustable moisture; Be easy to microorganic adhesion, inoculation capable of circulation; Deodorizing and nitrogen protecting efficient is high, nothing is adsorbed saturability, deodorizing capable of circulation, degradability, the residual advantage that does not reduce quality product.
The applying step of deodorizing prilling amendment capable of circulation in sludge composting is: mass ratio 1 is pressed in (1): mix mud (0.35～1.35) with amendment, gets mixture, and the mixture water ratio is 55～65%; (2) mixture is put into the fermentation installation high-temperature aerobic fermentation, and rate of venting is 0.05～6m
3/ (minm
3), keep the mixture temperature at more than 55 ℃ at least 5 days; (3) fermentation discharging after 9～20 days is sieved out amendment through trommel screen then, and screen rate is more than 98%, and the mud nitrogen loss reduces more than 65%, and nitrogen nutrient content improves more than 25% in the compost finished product, promptly accomplishes the application of amendment in sludge composting.Wherein the water ratio of mud is 75～85% in the step (1), and organic content is 40～85%.
Deodorizing prilling amendment capable of circulation can be applied to separately in the sludge composting among the present invention; Because of wooden homogeneous body has bigger voidage and loading capacity, utilize the absorption and the quick neutralization reaction of organic acid of wooden homogeneous body, through the synergistic effect of physical adsorption and chemical absorption; Making fixedly, the effect of ammonia improves greatly; Reduced the stink that the volatilization of ammonia and hydrogen sulfide produces, nitrogen loss reduces more than 65% in the composting process, and nitrogen nutrient content improves more than 25% in the compost finished product.Simultaneously, organic acid is introduced, and can regulate the C/N of compost material, and for the sludge high temperature aerobic fermentation provides the carbon source that is lacked, the fixed ammonia can be used as nitrogenous source and is used effectively, and satisfies the needs of microorganism growth breeding.In addition, amendment material of the present invention is a natural organic, cellulose family content high (can be used as carbon source); Good water-absorbent is arranged, and microorganic adhesion property is good, and self is degraded slowly; Constantly discharge organic acid, when having guaranteed that the amendment that sieves out recycles, can continue to bring into play the fixedly effect of ammonia of quick neutralization; Do not need to soak with organic acid soln again, reduced the organic acid consumption, reduced the deodorizing and nitrogen protecting cost.
Description of drawings
Fig. 1 is deodorizing prilling amendment preparation capable of circulation and the applicating flow chart in sludge composting thereof.
Embodiment
Technical scheme of the present invention is not limited to following cited embodiment, also comprises the arbitrary combination between each embodiment.
Embodiment one: this embodiment deodorizing prilling capable of circulation amendment is that to be attached with organic acid particle diameters such as lactic acid, oxysuccinic acid, tartrate be the wooden homogeneous body of 0.5～10cm.
Deodorizing prilling amendment capable of circulation prepares process and is in this embodiment: exsiccant timber is processed through mechanical means such as crusher, shapers; Obtaining particle diameter is the wooden homogeneous body (spheroid or square) of 0.5～10cm; Then wooden homogeneous body being put into concentration is the organic acid soln that 10～60% lactic acid, oxysuccinic acid, tartrate etc. have fragrance; Soak after 5～20 hours and take out, airing or oven dry promptly obtain deodorizing prilling amendment capable of circulation to anhydrous.This amendment has that particle diameter is identical with shape, light weight, good fluidity, be prone to screening, can be recycled; Good water absorption, adjustable moisture; Be easy to microorganic adhesion, inoculation capable of circulation; Deodorizing and nitrogen protecting efficient is high, nothing is adsorbed saturability, deodorizing capable of circulation, degradability, the residual advantage that does not reduce quality product.
Embodiment two: this embodiment deodorizing prilling capable of circulation amendment being applied as in sludge composting: mass ratio 1 is pressed in (1): mix mud (0.35～1.35) with amendment, gets mixture, and the mixture water ratio is 55～65%; (2) mixture is put into the fermentation installation high-temperature aerobic fermentation, and rate of venting is 0.05～6m
3/ (minm
3), keep the mixture temperature at more than 55 ℃ at least 5 days; (3) fermentation discharging after 9～20 days is sieved out amendment through trommel screen then, and screen rate is more than 98%, and the mud nitrogen loss reduces more than 65%, and nitrogen nutrient content improves more than 25% in the compost finished product, promptly accomplishes the application of amendment in sludge composting.Wherein the water ratio of mud is 75～85% in the step (1), and organic content is 40～85%.
If adopt intermittently dynamic zymotechnique in this embodiment, can carry out regular turning and mix, the turning frequency is 1～4 day.
To be caused with the material that becomes thoroughly decomposed by blower fan be the deodorizing filter tank of main stuffing to thermophilic fermentation tail gas in this embodiment, utilizes the odorant pollutant in a large amount of microbiological degradation tail gas that exist in the material that becomes thoroughly decomposed.
The amendment that sieves out in this embodiment directly or through air-dry processing recycles after 0.5～2 day, can continue to bring into play the fixedly effect of ammonia of quick neutralization, and in the sludge composting process, play good microbe inoculation effect.
Embodiment three: what this embodiment and embodiment two were different is that the water ratio of mud is 80% in the step (1), and organic content is 60%.Other step and parameter are identical with embodiment two.
Embodiment four: this embodiment and embodiment two are different is to press mass ratio 1: 0.7 in the step (1) mud is mixed with amendment.Other step and parameter are identical with embodiment two.
Embodiment five: what this embodiment and embodiment two were different is that mixture is put into the fermentation installation high-temperature aerobic fermentation in the step (2), and rate of venting is 0.2m
3/ (minm
3), fermenting, to regulate rate of venting when the mixture temperature is higher than 60 ℃ be 1.5m
3/ (minm
3).Other step and parameter are identical with embodiment two.
Embodiment six: what this embodiment and embodiment two were different is fermentation discharging after 16 days in the step (3).Other step and parameter are identical with embodiment two.
Claims (7)
1. deodorizing prilling amendment capable of circulation is characterized in that deodorizing prilling amendment capable of circulation is that to be attached with organic acid particle diameters such as lactic acid, oxysuccinic acid, tartrate be the wooden homogeneous body of 0.5～10cm.
2. the preparation of deodorizing prilling amendment capable of circulation as claimed in claim 1; The preparation process that it is characterized in that amendment is: exsiccant timber is processed through mechanical means such as crusher, shapers; Obtaining particle diameter is the wooden homogeneous body (spheroid or square) of 0.5～10cm; Then wooden homogeneous body being put into concentration is the organic acid soln that 10～60% lactic acid, oxysuccinic acid, tartrate etc. have fragrance; Soak after 5～20 hours and take out, airing or oven dry promptly obtain deodorizing prilling amendment capable of circulation to anhydrous.This amendment has that particle diameter is identical with shape, light weight, good fluidity, be prone to screening, can be recycled; Good water absorption, adjustable moisture; Be easy to microorganic adhesion, inoculation capable of circulation; Deodorizing and nitrogen protecting efficient is high, nothing is adsorbed saturability, deodorizing capable of circulation, degradability, the residual advantage that does not reduce quality product.
3. the application of deodorizing prilling amendment capable of circulation as claimed in claim 1 in sludge composting; It is characterized in that the applying step of amendment in sludge composting is: mass ratio 1 is pressed in (1): mix mud (0.35～1.35) with amendment; Get mixture, the mixture water ratio is 55～65%; (2) mixture is put into the fermentation installation high-temperature aerobic fermentation, and rate of venting is 0.05～6m
3/ (minm
3), keep the mixture temperature at more than 55 ℃ at least 5 days; (3) fermentation discharging after 9～20 days is sieved out amendment through trommel screen then, and screen rate is more than 98%, and the mud nitrogen loss reduces more than 65%, and nitrogen nutrient content improves more than 25% in the compost finished product, promptly accomplishes the application of amendment in sludge composting.Wherein the water ratio of mud is 75～85% in the step (1), and organic content is 40～85%; The amendment that sieves out in the step (3) directly or through air-dry processing recycles after 0.5～2 day, can continue to bring into play the fixedly effect of ammonia of quick neutralization, and in the sludge composting process, play good microbe inoculation effect.
4. the application of deodorizing prilling amendment capable of circulation according to claim 3 in sludge composting is characterized in that the water ratio of mud in the step (1) is 80%, and organic content is 60%.
5. the application of deodorizing prilling amendment capable of circulation according to claim 3 in sludge composting is characterized in that pressing in the step (1) mass ratio 1: 0.7 mud mixed with amendment.
6. the application of deodorizing prilling amendment capable of circulation according to claim 3 in sludge composting is characterized in that mixture is put into the fermentation unit high-temperature aerobic fermentation in the step (2), and rate of venting is 0.2m
3/ (minm
3), fermenting, to regulate rate of venting when the mixture temperature is higher than 60 ℃ be 1.5m
3/ (minm
3).
7. the application of deodorizing prilling amendment capable of circulation according to claim 3 in sludge composting is characterized in that step (3) fermentation discharging after 16 days.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110435912.8A CN102557768B (en) | 2011-12-23 | 2011-12-23 | Circularly-deodorizing granulated conditioner and application thereof in sludge compost |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110435912.8A CN102557768B (en) | 2011-12-23 | 2011-12-23 | Circularly-deodorizing granulated conditioner and application thereof in sludge compost |
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| CN102557768A true CN102557768A (en) | 2012-07-11 |
| CN102557768B CN102557768B (en) | 2014-03-26 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103910541A (en) * | 2014-04-11 | 2014-07-09 | 河南工业大学 | Method of surface carbonization of wooden conditioner for sludge composting |
| CN107586155A (en) * | 2017-10-25 | 2018-01-16 | 湖北省农业科学院畜牧兽医研究所 | A kind of new and effective Chicken Manure Compost method |
| CN112705022A (en) * | 2020-12-14 | 2021-04-27 | 华南农业大学 | Open-loop deodorization control method based on livestock and poultry house environment control mechanism |
| CN113213722A (en) * | 2021-06-18 | 2021-08-06 | 赵誉 | Activating excitant for aerobic fermentation bacillus |
| CN113785751A (en) * | 2021-09-07 | 2021-12-14 | 广东百林生态科技股份有限公司 | Bougainvillea spectabilis culture medium and preparation method thereof |
| CN115093254A (en) * | 2022-07-12 | 2022-09-23 | 安徽国祯环卫科技有限公司 | Method for reducing ammonia volatilization and nitrogen loss in kitchen waste composting process by adding organic acid complexing agent |
| CN115259921A (en) * | 2022-07-21 | 2022-11-01 | 安徽国祯环卫科技有限公司 | Combined composting process of saturated deodorant material and kitchen garbage |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5314187A (en) * | 1976-07-24 | 1978-02-08 | Nitsutou Suishitsu Kaihatsu Ke | Method of treating nitrogenous stinking gases such as ammonia gas |
| CN1562912A (en) * | 2004-04-12 | 2005-01-12 | 中国农业大学 | Method for controlling nitrogen loss in procedure of making artificial manure, and dedicated fixing agent |
| CN101016216A (en) * | 2007-01-22 | 2007-08-15 | 桂林工学院 | Highly effective compost method for livestock and fowl breeding castoff using bamboo acetic acid |
| CN101696137A (en) * | 2009-11-05 | 2010-04-21 | 湖南农业大学 | Deodorant nitrogen-conserving conditioner of livestock manure compost and using method |
| CN102030587A (en) * | 2010-10-19 | 2011-04-27 | 中国农业大学 | Method and fixative for controlling nitrogen loss in composting process |
-
2011
- 2011-12-23 CN CN201110435912.8A patent/CN102557768B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5314187A (en) * | 1976-07-24 | 1978-02-08 | Nitsutou Suishitsu Kaihatsu Ke | Method of treating nitrogenous stinking gases such as ammonia gas |
| CN1562912A (en) * | 2004-04-12 | 2005-01-12 | 中国农业大学 | Method for controlling nitrogen loss in procedure of making artificial manure, and dedicated fixing agent |
| CN101016216A (en) * | 2007-01-22 | 2007-08-15 | 桂林工学院 | Highly effective compost method for livestock and fowl breeding castoff using bamboo acetic acid |
| CN101696137A (en) * | 2009-11-05 | 2010-04-21 | 湖南农业大学 | Deodorant nitrogen-conserving conditioner of livestock manure compost and using method |
| CN102030587A (en) * | 2010-10-19 | 2011-04-27 | 中国农业大学 | Method and fixative for controlling nitrogen loss in composting process |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103910541A (en) * | 2014-04-11 | 2014-07-09 | 河南工业大学 | Method of surface carbonization of wooden conditioner for sludge composting |
| CN103910541B (en) * | 2014-04-11 | 2016-08-17 | 河南工业大学 | A kind of method of sludge composting wooden conditioner surface carbonation |
| CN107586155A (en) * | 2017-10-25 | 2018-01-16 | 湖北省农业科学院畜牧兽医研究所 | A kind of new and effective Chicken Manure Compost method |
| CN112705022A (en) * | 2020-12-14 | 2021-04-27 | 华南农业大学 | Open-loop deodorization control method based on livestock and poultry house environment control mechanism |
| CN112705022B (en) * | 2020-12-14 | 2022-06-07 | 华南农业大学 | Open-loop deodorization control method based on livestock and poultry house environment control mechanism |
| CN113213722A (en) * | 2021-06-18 | 2021-08-06 | 赵誉 | Activating excitant for aerobic fermentation bacillus |
| CN113785751A (en) * | 2021-09-07 | 2021-12-14 | 广东百林生态科技股份有限公司 | Bougainvillea spectabilis culture medium and preparation method thereof |
| CN115093254A (en) * | 2022-07-12 | 2022-09-23 | 安徽国祯环卫科技有限公司 | Method for reducing ammonia volatilization and nitrogen loss in kitchen waste composting process by adding organic acid complexing agent |
| CN115259921A (en) * | 2022-07-21 | 2022-11-01 | 安徽国祯环卫科技有限公司 | Combined composting process of saturated deodorant material and kitchen garbage |
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| CN102557768B (en) | 2014-03-26 |
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