CN106116083A - The compounding method of municipal sludge - Google Patents
The compounding method of municipal sludge Download PDFInfo
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- CN106116083A CN106116083A CN201610514389.0A CN201610514389A CN106116083A CN 106116083 A CN106116083 A CN 106116083A CN 201610514389 A CN201610514389 A CN 201610514389A CN 106116083 A CN106116083 A CN 106116083A
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- municipal sludge
- compounding method
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- moisture content
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- 239000010802 sludge Substances 0.000 title claims abstract description 54
- 239000011265 semifinished product Substances 0.000 claims abstract description 17
- 241000894006 Bacteria Species 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims abstract description 13
- 240000007582 Corylus avellana Species 0.000 claims abstract description 12
- 235000007466 Corylus avellana Nutrition 0.000 claims abstract description 12
- 241000209149 Zea Species 0.000 claims abstract description 12
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims abstract description 12
- 235000005822 corn Nutrition 0.000 claims abstract description 12
- 235000005824 corn Nutrition 0.000 claims abstract description 12
- 239000002689 soil Substances 0.000 claims abstract description 12
- 102000004190 Enzymes Human genes 0.000 claims abstract description 11
- 108090000790 Enzymes Proteins 0.000 claims abstract description 11
- 239000003337 fertilizer Substances 0.000 claims abstract description 9
- 244000052616 bacterial pathogens Species 0.000 claims abstract description 7
- 238000010564 aerobic fermentation Methods 0.000 claims abstract description 4
- 230000002159 abnormal effect Effects 0.000 claims abstract 2
- 239000000796 flavoring agent Substances 0.000 claims abstract 2
- 235000019634 flavors Nutrition 0.000 claims abstract 2
- 238000007792 addition Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 230000003389 potentiating Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 14
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 abstract description 2
- 244000005700 microbiome Species 0.000 abstract description 2
- 241000196324 Embryophyta Species 0.000 description 6
- 239000011651 chromium Substances 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 231100000614 Poison Toxicity 0.000 description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000009408 flooring Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000003895 organic fertilizer Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 239000010801 sewage sludge Substances 0.000 description 2
- 240000001200 Eucalyptus globulus Species 0.000 description 1
- 235000004694 Eucalyptus leucoxylon Nutrition 0.000 description 1
- 235000010705 Eucalyptus maculata Nutrition 0.000 description 1
- 235000009683 Eucalyptus polybractea Nutrition 0.000 description 1
- 235000009687 Eucalyptus sargentii Nutrition 0.000 description 1
- 210000004681 Ovum Anatomy 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 230000000240 adjuvant Effects 0.000 description 1
- 230000001580 bacterial Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000001419 dependent Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000020673 eicosapentaenoic acid Nutrition 0.000 description 1
- 235000001612 eucalyptus Nutrition 0.000 description 1
- 235000001617 eucalyptus Nutrition 0.000 description 1
- 235000001621 eucalyptus Nutrition 0.000 description 1
- 235000006356 eucalyptus Nutrition 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000813 microbial Effects 0.000 description 1
- 239000010841 municipal wastewater Substances 0.000 description 1
- 230000003071 parasitic Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 235000005227 red mallee Nutrition 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003019 stabilising Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F7/00—Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses
-
- 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
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/20—Sludge processing
-
- 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
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
-
- 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 compounding method of municipal sludge, relates to municipal sludge and processes.One is provided to process technique simple, it is easy to control and the compounding method of the municipal sludge optimized.Comprise the following steps: 1) in municipal sludge, add commercial microbe bacterium enzyme, remove the abnormal flavour that mud itself produces because of anaerobic-aerobic fermentation；2) by step 1) the municipal sludge dry in the sun that obtains does, and obtains the semi-finished product that moisture content is 35%～40%；3) by step 2) semi-finished product that obtain carry out batch mixing, and batch mixing adds mushroom soil or corn cob, then the revolving drum drier of band reducing mechanism is pulverized and is dried, and obtains the moisture content fertilizer less than 15%.Have employed trapezoid platform+microorganism+mud and do the integrated composite treatment technology of solarization+mixing charging, optimize processing step and parameter, low cost, solve the series of environmental problems that current municipal sludge is difficult and processing cost is high very well.
Description
Technical field
The present invention relates to municipal sludge process, especially relate to the compounding method of a kind of municipal sludge.
Background technology
Existing method for sludge treatment has landfill, agricultural and burning etc., but all of processing method should meet stabilisation, nothing
Evilization, minimizing and strive the principle of resource.Mud is a kind of by groups such as organic relic, bacterial body, inorganic particle and colloids
The heterogeneous body become, it is difficult to carry out solid-liquid separation thoroughly by sedimentation.The mud that sewage disposal produces is the most organic
Mud, its characteristic is content of organics high (60%～80%), and granule is thin (0.02～0.2mm), density little (1002～
1006Kg/m3), in colloform texture, it is a kind of hydrophilic mud, easy pipeline carries, but dewatering is poor.Along with sludge water content
Minimizing, mud from pure aqueous flow to viscous, plasticity shape, half-dried solid, shaped until this process of pure solid, shaped become
Change.Generally concentrate and moisture content can be dropped to 85% (saturation state)；Moisture content is when 70%～75%, and mud is soft condition,
It is difficult to flowing；The most general dehydration drops to 60%～65% only, now, almost becomes solid；Moisture content low to 35%～
When 40%, become poly-bulk state (being above semi-oriented state)；The lowest powdered to 10%～15%.Treatment of Sludge
General objective is to ensure that the poisonous and harmful substance in mud, either now can not or all will not cause the mankind and environment in the future
The harm accepted.
The U.S. processes the method for mud and mainly recycles, and the ratio of Sludge landfill the most progressively declines, and the U.S. is many
Mud landfill has been forbidden in area.Estimating according to EPA, in decades from now on, 6500 landfill yards of the U.S. will
5000 are had to be closed.Agricultural sludge and land landfill were once two kinds of main method of most countries sludge treatment.Agricultural and
The selection of land landfill scheme is heavily dependent on the relevant law of national governments, regulation and Environmental capacity situation, simultaneously
Also relevant with the size of country and agricultural development situation.In recent years, along with agricultural sludge standard is (such as synthesis of organic substance and heavy metal
Content) trend of increasingly stringent, many countries, the ratio of agricultural sludge constantly reduces.The ratio that now environmental protection work is done at present
Relatively put in place, the standard that municipal wastewater treatment plant content of beary metal is typically fertile not over afforestation.Sludge landfill characteristics is mainly used
In turf plant, plants such as eucalyptus.Growth for plants such as nursery stock, flowers, lawns has important facilitation, can conduct
Urban afforestation effective fertility resource；In mud, poisonous and harmful substance does not enter food chain, and that is caused human health is potential
Threaten little, it both can have been made to get utilization, chemical fertilizer and usage amount humous can be reduced again, there is good economic benefit
And environmental benefit.
Chinese patent CN01115480.2 provides a kind of quick, economic sludge treatment technique, it is characterized in that: at sewage
Dewatered sludge and the partially dried mud of reason factory and a certain amount of inorganic fertilizer and adjuvant (when producing compound fertilizer with mud) exist
In mixer after Mixed adjustment moisture content, it is continuously added to special screw rod (can be single screw rod or twin screw) extruder grain (bar)
In machine (can be vertical or horizontal)；When mud not adhesion (moisture content is relatively low) mutually of extrusion, screw extruding can be used to make
Grain machine, when mud mutual adhesion (moisture content is higher) of extrusion, can use screw extruding strip making machine (only need to be exported by comminutor
Revolving scraper unloads)；The outlet of screw extruding pelletize (bar) machine is joined directly together, by turning circle with the entrance of revolving drum drier
The mud import of drum drier is suitably increased, and makes a part of high-temperature flue gas in the place exported close to screw extruding pelletize (bar) machine
Import wherein, and have certain time of contact in vertical direction with mud；The outlet of screw extruding strip making machine is the most downward；
When mud bar is freshly extruded, i.e. contacting with high-temperature flue gas, surface moisture evaporates rapidly, makes the adhesion no longer mutually of mud bar, favorably
In drying and dehydrating；From revolving drum drier out after, a part of dewatered sludge mixes with wet mud as returning charge, another part do
Mud is as drying the fuel of mud or selling as fertilizer；Through being dried, mud becomes odorless, tasteless, the micro-life of cause of disease therein
Thing and parasitic ovum are also killed, it is achieved that innoxious.These processes the most just can complete.
Summary of the invention
Present invention aims to that existing mud is difficult, high in cost of production problem, it is provided that a kind of process technique letter
Single, it is easy to control and the compounding method of the municipal sludge optimized.
The present invention comprises the following steps:
1) adding commercial microbe bacterium enzyme in municipal sludge, removal mud itself is different because of anaerobic-aerobic fermentation generation
Taste；
2) by step 1) the municipal sludge dry in the sun that obtains does, and obtains the semi-finished product that moisture content is 35%～40%；
3) by step 2) semi-finished product that obtain carry out batch mixing, and batch mixing adds mushroom soil or corn cob, then band is pulverized
The revolving drum drier of device is pulverized and is dried, and obtains the moisture content fertilizer less than 15%.
In step 1) in, described municipal sludge can use the municipal sludge that moisture content is not less than 80%, the micro-life of described commercialization
Thing bacterium enzyme can use Shangrao City sunlight biological Engineering Co., Ltd of Jiangxi Province SHH potent biological live bacteria agent (http: //
china.makepolo.com/product-detail/100174717035.html)；The addition of described commercial microbe bacterium enzyme
Amount can be 1: 2000 with the mass ratio of municipal sludge.
In step 2) in, described dry in the sun is dry can use outdoor threshing ground or indoor to dry field；It is laid in outdoor threshing ground or indoor
The municipal sludge thickness drying field can be 4～5cm；Described outdoor threshing ground can use trapezoid platform threshing ground, adjacent trapezoidal platform
Difference in height can be 2～4.5m；Field is dried in described indoor can use cement flooring and plane skylight roof.
In step 3) in, the addition of described mushroom soil can be the 30%～60% of semi-finished product mud by mass percentage,
Preferably 50%；The addition of described corn cob can be the 30%～60% of semi-finished product mud by mass percentage, preferably 50%；Institute
Stating mushroom soil's water content can be 20%～30%；The moisture content of described corn cob can be 30%～45%.
Present invention employs trapezoid platform+microorganism+mud and do the integrated composite treatment technology of solarization+mixing charging, optimize
Processing step and parameter, low cost, solve a series of environment that current municipal sludge is difficult and processing cost is high very well
Problem.
Detailed description of the invention
The present invention is further illustrated for following example.
The present invention comprises the following steps:
1) adding commercial microbe bacterium enzyme in municipal sludge, removal mud itself is different because of anaerobic-aerobic fermentation generation
Taste；Described municipal sludge can use the municipal sludge that moisture content is not less than 80%, described commercial microbe bacterium enzyme can use Jiangxi
SHH potent biological live bacteria agent (the http://china.makepolo.com/ of Shangrao City sunlight biological Engineering Co., Ltd of province
product-detail/100174717035.html)；The addition of described commercial microbe bacterium enzyme and the quality of municipal sludge
Ratio can be 1: 2000.
2) by step 1) the municipal sludge dry in the sun that obtains does, and obtains the semi-finished product that moisture content is 35%～40%；Described dry in the air
Dry and outdoor threshing ground or indoor can be used to dry field；It is laid in outdoor threshing ground or to dry the municipal sludge thickness of field can be 4 in indoor
～5cm；Described outdoor threshing ground can use trapezoid platform threshing ground, and the difference in height of adjacent trapezoidal platform can be 2～4.5m；Described indoor
Dry field and can use cement flooring and plane skylight roof.
3) by step 2) semi-finished product that obtain carry out batch mixing, and batch mixing adds mushroom soil or corn cob, then band is pulverized
The revolving drum drier of device is pulverized and is dried, and obtains the moisture content fertilizer less than 15%.The addition of described mushroom soil is by quality
Percentage ratio can be the 30%～60% of semi-finished product mud, preferably 50%；The addition of described corn cob can be by mass percentage
The 30%～60% of semi-finished product mud, preferably 50%；Described mushroom soil's water content can be 20%～30%；Described corn cob
Moisture content can be 30%～45%.
The municipal sludge more than used is provided by certain Sewage Plant, and the urban domestic sewage sludge data of certain Sewage Plant output are such as
Table 1.
Table 1
| Test event | Measured result |
| Organic (in terms of butt) (%) | 8 |
| Nitrogen (N) (mg/kg) | 16100 |
| Phosphorus (P) (mg/kg) | 9060 |
| Potassium (K) (mg/kg) | 599 |
| Moisture (%) | 80 |
| Arsenic (As) (mg/kg) | 6.15 |
| Hydrargyrum (Hg) (mg/kg) | 0.288 |
| Cadmium (Cd) (mg/kg) | 1.8 |
| Lead (Pb) (mg/kg) | 2.36 |
| Chromium (Cr) (mg/kg) | 38.85 |
Through multistep treatment, in the open and Indoor Dry threshing ground is done after shining 3～5 days, and its moisture percentage in sewage sludge is down to 35%～40% and is shown
Bulk, pushes, through buck raker, mushroom soil (moisture content 25%) or corn cob (moisture content 40%) entrance that material mixing workshop adds 50%
With the revolving drum drier of reducing mechanism, trapezoidal threshing ground and workshop that this invention is formed by hillside fields complete, each process
Region height difference 4m.
In the present embodiment, conventional NY 525-2011 " organic fertilizer " organic fertilizer index determining experimental result has been carried out
As shown in table 2.Test result indicate that this enforcement processes thorough, environmental ecological benefit height, can effectively process municipal sludge.
Table 2
| Test event | Measured result |
| Organic (in terms of butt) (%) | 31.0 |
| Nitrogen content (in terms of butt) (%) | 2.19 |
| Phosphorus content (in terms of butt) (%) | 2.73 |
| Potassium content (in terms of butt) (%) | 1.06 |
| Moisture (%) | 12.3 |
| Arsenic (As) (mg/kg) | 5.6 |
| Hydrargyrum (Hg) (mg/kg) | 1.1 |
| Cadmium (Cd) (mg/kg) | 1.8 |
| Lead (Pb) (mg/kg) | 51.9 |
| Chromium (Cr) (mg/kg) | 85.9 |
The mud that summer will often process on concrete floor day by day, mud the most per ton adds the commercialization of 1: 2000 ratio
Microbial bacteria enzyme.And it is laid into dry solarization 3～5 days during the thickness fine day of 4～5cm, semi-finished product mud can be completed.
Winter, under the effect of indoor lighting plate, indoor temperature controlled at 35 DEG C of mud under conditions of there is daylighting indoor
It is laid into the thickness of 4～5cm, dry solarization more than 3～5 days, semi-finished product mud can be completed.
Semi-finished product mud being carried out batch mixing, adds dry mushroom soil or the corn cob of 50% in batch mixing, band pulverizes dress
The revolving drum drier put, the moisture content being dried to 15% can become afforestation fertilizer.
Claims (10)
1. the compounding method of municipal sludge, it is characterised in that comprise the following steps:
1) in municipal sludge, add commercial microbe bacterium enzyme, remove the abnormal flavour that mud itself produces because of anaerobic-aerobic fermentation；
2) by step 1) the municipal sludge dry in the sun that obtains does, and obtains the semi-finished product that moisture content is 35%～40%；
3) by step 2) semi-finished product that obtain carry out batch mixing, add mushroom soil or corn cob, then band reducing mechanism in batch mixing
Revolving drum drier pulverize be dried, obtain moisture content less than 15% fertilizer.
2. the compounding method of municipal sludge as claimed in claim 1, it is characterised in that in step 1) in, described municipal sludge
Use the moisture content municipal sludge not less than 80%.
3. the compounding method of municipal sludge as claimed in claim 1, it is characterised in that in step 1) in, the micro-life of described commercialization
Thing bacterium enzyme uses the SHH potent biological live bacteria agent of Shangrao City sunlight biological Engineering Co., Ltd of Jiangxi Province.
4. the compounding method of municipal sludge as claimed in claim 1, it is characterised in that in step 1) in, the micro-life of described commercialization
The addition of thing bacterium enzyme and the mass ratio of municipal sludge are 1: 2000.
5. the compounding method of municipal sludge as claimed in claim 1, it is characterised in that in step 2) in, described dry in the sun is dry adopts
Field is dried with outdoor threshing ground or indoor.
6. the compounding method of municipal sludge as claimed in claim 5, it is characterised in that described outdoor threshing ground or indoor are dried
On field, the municipal sludge thickness of tiling is 4～5cm.
7. the compounding method of municipal sludge as claimed in claim 5, it is characterised in that described outdoor threshing ground uses trapezoidal flat
Platform threshing ground, the difference in height of adjacent trapezoidal platform is 2～4.5m.
8. the compounding method of municipal sludge as claimed in claim 5, it is characterised in that described indoor are dried field and used cement
Ground and plane skylight roof.
9. the compounding method of municipal sludge as claimed in claim 1, it is characterised in that in step 3) in, described mushroom soil
Addition is the 30%～60% of semi-finished product mud by mass percentage, preferably 50%；Described mushroom soil's water content can be
20%～30%.
10. the compounding method of municipal sludge as claimed in claim 1, it is characterised in that in step 3) in, described corn cob
Addition be the 30%～60% of semi-finished product mud by mass percentage, preferably 50%；The moisture content of described corn cob can be
30%～45%.
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| CN201610514389.0A CN106116083A (en) | 2016-07-03 | 2016-07-03 | The compounding method of municipal sludge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110117198A (en) * | 2018-02-05 | 2019-08-13 | 上海清驰环保工程技术有限公司 | Sludge deodorization is dehydrated into the new method of microbial organic bacterial manure |
| CN114804956A (en) * | 2022-05-11 | 2022-07-29 | 厦门旺鑫淼资源化利用有限公司 | Method for producing forestry controlled release fertilizer by using sludge of municipal sewage plant |
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| CN105110833A (en) * | 2015-09-22 | 2015-12-02 | 宋春刚 | Harm-less fast fermented bio-organic fertilizer and preparation method thereof |
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