CN102476897A - Novel sludge treatment method - Google Patents
Novel sludge treatment method Download PDFInfo
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- CN102476897A CN102476897A CN2010105583126A CN201010558312A CN102476897A CN 102476897 A CN102476897 A CN 102476897A CN 2010105583126 A CN2010105583126 A CN 2010105583126A CN 201010558312 A CN201010558312 A CN 201010558312A CN 102476897 A CN102476897 A CN 102476897A
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- sludge
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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 relates to a novel sludge treatment method. The method includes: strain is prepared at first, then sludge, auxiliary materials, humic acid and the strain are uniformly blended and stacked, and are permitted to stand for 8 to 16 days at the temperature ranging from minus 15 DEG C to 30 DEG C, and stabilized sludge can be obtained. The novel sludge treatment method uses local materials and is low in cost, and the stabilized sludge can be used as quality raw materials for producing organic compound fertilizer, and also can be used as green fertilizer and agricultural fertilizer.
Description
Technical field
The present invention relates to the sludge treatment technology in the field of environment protection, relate in particular to a kind of novel method for sludge treatment.
Background technology
Along with the fast development of Chinese society economy and urbanization, town sewage treatment facility construction scale speed is constantly accelerated, and sludge yield is also more and more.Because wastewater treatment is focused in domestic existence; The tendency of light sludge treatment; The most of sewage work of China does not possess complete sludge treatment technique; Much having built the sludge treatment facility can not normally move, not perfect about the management policy and the standards system of sludge treatment disposal in addition, causes domestic sludge treatment intervention level very low.
After the thickening of mud through routine at present; Mainly be to fill up or direct agricultural use; But not stabilized municipal sludge is directly used in a large number, can work the mischief to plant, also can be to soil, underground water; Even atmosphere brings pollution, is difficult to reach the requirement of sludge reduction, stabilization, innoxious, resource utilization.Therefore " municipal sewage plant's pollutant emission standard " (GB18918-2002) in the mud of regulation urban wastewater treatment firm should carry out stabilization treatment; But go back the none process at present and be easy to control; Simple, and stabilization treatment method with low cost can be implemented.
Summary of the invention
Technical problem to be solved by this invention provides that a kind of process is easy to control, method for sludge treatment with low cost.
For addressing the above problem, a kind of novel method for sludge treatment of the present invention may further comprise the steps:
(1) strain preparation: dewatered sludge, wheat bran, crop material, humic acids were pressed 13: 1: 1: 0.1～10: 1.5: 0.3: 0.1 weight ratio got final product at 55～60 ℃ of temperature bottom fermentations after mixing in 10～15 days;
(2) mud and crop waste stalk are mixed into compound;
(3) mix and stir into after adding humic acid, bacterial classification successively in the compound in step (2) C/N ratio be 25: 1～13: 1, water ratio stomach 58%～70% mix and stir material; Wherein the add-on of humic acid, bacterial classification is respectively 0.01%～0.02% and 5%～40% of compound weight;
(4) the mixing and stirring material in the step (3) is mixed the back stacking, under-15～30 ℃, leave standstill and got final product in 8～16 days.
The present invention compared with prior art has the following advantages:
1, because the present invention adopts biological fermentation to handle, therefore can effectively remove the mud stink, reduce its water ratio, make mud reach stabilization; Moisture percentage in sewage sludge after the stabilized processing＜50%; Organic degradation rate＞50%; Worm egg mortality ratio＞95%, excrement colibacillus group value＞0.01 meets " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) sludge stabilizing controlling index requirement of middle regulation.Simultaneously because the organic substance in the mud changes into farm crop and the available nutritive substance of plant, so the mud after the stabilization both can be used as the high quality raw material of producing compoiste fertilizer, and also directly conduct is afforested and agricultural fertilizer.
2, added humic acid owing among the present invention, and contained active gene can combine or chelatropic reaction in the humic acid molecular structure with metals ion, therefore can effectively reduce heavy metal activity in the mud, reduce the harm of heavy metal.
3, the present invention can gather materials on the spot, and floor space is little, and less investment, cost are low.
Embodiment
1 one kinds of novel method for sludge treatment of embodiment may further comprise the steps:
(1) strain preparation: dewatered sludge, wheat bran, crop material, humic acids were pressed 13: 1: 1: 0.1 weight ratio is mixed; Place then in the 0.49m3 volumetrical heat-preservation fermentation bucket; Spontaneous fermentation, input air makes leavening temperature remain on 55～60 ℃ then, and 10～15 days time length got final product.
Wherein dewatered sludge is taken from Lanzhou Yan Erwan sewage work, and its water ratio is 75～80%; Wheat bran, crop material are taken from the rural area; Humic acid is the commercial industrial product of carbon containing more than 65%; The heat-preservation fermentation bucket is processed by the airtight bucket that is filled with lagging material between bilayer and the bilayer, and this bucket is provided with air intake, exhaust outlet.
(2) the crop waste stalk with mud 1200kg and 56kg is mixed into compound.
(3) add 0.012% humic acid of compound weight and 40% bacterial classification successively in the compound in step (2), mix and stir then and become to mix and stir material, the C/N ratio of mixing and stirring material this moment is that 25: 1, water ratio are 58%.
(4) material that mixes and stirs in the step (3) is mixed, all pile a buttress, under-15～10 ℃, leave standstill then, do not have turning in four days once, got final product in 16 days.
The content analysis of carbon and nitrogen adopts German elementar company to produce in the above-mentioned material Vario type elemental analyser, combustion analysis method record; The measurement of water-content coefficient method adopts GB7172-87 " determining soil moisture method " to record in the material.
2 one kinds of novel method for sludge treatment of embodiment may further comprise the steps:
(1) strain preparation is with embodiment 1: wherein dewatered sludge, wheat bran, crop material, humic acids were by 10: 1.5: 0.3: 0.1 weight ratio is mixed.
(2) the crop waste stalk with mud 1200kg and 34kg is mixed into compound.
(3) add 0.02% humic acid of compound weight and 25% bacterial classification successively in the compound in step (2), mix and stir then and become to mix and stir material, the C/N ratio of mixing and stirring material this moment is that 13: 1, water ratio are 70%.
(4) material that mixes and stirs in the step (3) is mixed, all pile a buttress, under 10～30 ℃, leave standstill then, turning in per 2 days once got final product in 8 days.
The content analysis of carbon and nitrogen and measurement of water-content coefficient method are with embodiment 1 in the above-mentioned material.
3 one kinds of novel method for sludge treatment of embodiment may further comprise the steps:
(1) strain preparation is with embodiment 1: wherein dewatered sludge, wheat bran, crop material, humic acids were by 11: 1.3: 0.6: 0.1 weight ratio is mixed.
(2) the crop waste stalk with mud 1200kg and 253kg is mixed into compound.
(3) add 0.01% humic acid of compound weight and 5% bacterial classification successively in the compound in step (2), mix and stir then and become to mix and stir material, the C/N ratio of mixing and stirring material this moment is that 20: 1, water ratio are 65.3%.
(4) material that mixes and stirs in the step (3) is mixed, all pile a buttress, under 10～30 ℃, leave standstill then, turning in per three days once got final product in 12 days.
Claims (1)
1. novel method for sludge treatment may further comprise the steps:
(1) strain preparation: dewatered sludge, wheat bran, crop material, humic acids were pressed 13: 1: 1: 0.1～10: 1.5: 0.3: 0.1 weight ratio got final product at 55～60 ℃ of temperature bottom fermentations after mixing in 10～15 days;
(2) mud and crop waste stalk are mixed into compound;
(3) mixing and stirring into C/N ratio after adding humic acid, bacterial classification successively in the compound in step (2) is that 25: 1～13: 1, water ratio are 58%～70% the material that mixes and stirs; Wherein the add-on of humic acid, bacterial classification is respectively 0.01%～0.02% and 5%～40% of compound weight;
(4) the mixing and stirring material in the step (3) is mixed the back stacking, under-15～30 ℃, leave standstill and got final product in 8～16 days.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105583126A CN102476897A (en) | 2010-11-24 | 2010-11-24 | Novel sludge treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105583126A CN102476897A (en) | 2010-11-24 | 2010-11-24 | Novel sludge treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102476897A true CN102476897A (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105583126A Pending CN102476897A (en) | 2010-11-24 | 2010-11-24 | Novel sludge treatment method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674648A (en) * | 2012-06-01 | 2012-09-19 | 中国石油天然气股份有限公司 | Method for treating oily sludge |
| CN102776240A (en) * | 2012-07-19 | 2012-11-14 | 同济大学 | Method for increasing sludge fermenting volatile acid output |
| CN104276858A (en) * | 2013-07-09 | 2015-01-14 | 山东原野农业科技有限公司 | Microbial fertilizer and preparation method thereof |
| CN105693302A (en) * | 2016-02-03 | 2016-06-22 | 云南福发生物科技有限公司 | Method for producing natural organic fertilizer from reconstituted tobacco wastewater sludge |
| CN109574435A (en) * | 2018-12-26 | 2019-04-05 | 广西绿城水务股份有限公司 | A kind of method of solidification sludge as landfill waste |
| CN110606775A (en) * | 2019-10-30 | 2019-12-24 | 中国地质大学（北京） | Method for preparing fertilizer by fermenting river sludge and waste garden biomass |
-
2010
- 2010-11-24 CN CN2010105583126A patent/CN102476897A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674648A (en) * | 2012-06-01 | 2012-09-19 | 中国石油天然气股份有限公司 | Method for treating oily sludge |
| CN102674648B (en) * | 2012-06-01 | 2013-09-04 | 中国石油天然气股份有限公司 | Method for treating oily sludge |
| CN102776240A (en) * | 2012-07-19 | 2012-11-14 | 同济大学 | Method for increasing sludge fermenting volatile acid output |
| CN104276858A (en) * | 2013-07-09 | 2015-01-14 | 山东原野农业科技有限公司 | Microbial fertilizer and preparation method thereof |
| CN105693302A (en) * | 2016-02-03 | 2016-06-22 | 云南福发生物科技有限公司 | Method for producing natural organic fertilizer from reconstituted tobacco wastewater sludge |
| CN109574435A (en) * | 2018-12-26 | 2019-04-05 | 广西绿城水务股份有限公司 | A kind of method of solidification sludge as landfill waste |
| CN109574435B (en) * | 2018-12-26 | 2021-07-16 | 广西绿城水务股份有限公司 | Method for using solidified sludge as landfill garbage |
| CN110606775A (en) * | 2019-10-30 | 2019-12-24 | 中国地质大学（北京） | Method for preparing fertilizer by fermenting river sludge and waste garden biomass |
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Application publication date: 20120530 |