CN102701550B - Sludge treatment method - Google Patents
Sludge treatment method Download PDFInfo
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- CN102701550B CN102701550B CN201210193100.1A CN201210193100A CN102701550B CN 102701550 B CN102701550 B CN 102701550B CN 201210193100 A CN201210193100 A CN 201210193100A CN 102701550 B CN102701550 B CN 102701550B
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- mud
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- 238000000034 method Methods 0.000 title claims abstract description 57
- 239000010802 sludge Substances 0.000 title abstract description 23
- 230000008569 process Effects 0.000 claims abstract description 46
- 239000000463 material Substances 0.000 claims abstract description 32
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 27
- 239000011707 mineral Substances 0.000 claims abstract description 27
- 238000003756 stirring Methods 0.000 claims abstract description 21
- 239000002245 particle Substances 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 235000010755 mineral Nutrition 0.000 claims description 26
- 230000001954 sterilising effect Effects 0.000 claims description 14
- 239000002689 soil Substances 0.000 claims description 13
- 238000010298 pulverizing process Methods 0.000 claims description 10
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 8
- 239000008187 granular material Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000003337 fertilizer Substances 0.000 claims description 6
- 229910052902 vermiculite Inorganic materials 0.000 claims description 6
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- 235000019354 vermiculite Nutrition 0.000 claims description 6
- 239000000292 calcium oxide Substances 0.000 claims description 4
- 235000012255 calcium oxide Nutrition 0.000 claims description 4
- 230000000050 nutritive effect Effects 0.000 claims description 4
- 239000004113 Sepiolite Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910021536 Zeolite Inorganic materials 0.000 claims description 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 3
- 230000018044 dehydration Effects 0.000 claims description 3
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 3
- 230000000361 pesticidal effect Effects 0.000 claims description 3
- 229910052624 sepiolite Inorganic materials 0.000 claims description 3
- 235000019355 sepiolite Nutrition 0.000 claims description 3
- 239000010457 zeolite Substances 0.000 claims description 3
- 229960000892 attapulgite Drugs 0.000 claims description 2
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 2
- 229910052900 illite Inorganic materials 0.000 claims description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052622 kaolinite Inorganic materials 0.000 claims description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Inorganic materials O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 2
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 2
- VGIBGUSAECPPNB-UHFFFAOYSA-L nonaaluminum;magnesium;tripotassium;1,3-dioxido-2,4,5-trioxa-1,3-disilabicyclo[1.1.1]pentane;iron(2+);oxygen(2-);fluoride;hydroxide Chemical compound [OH-].[O-2].[O-2].[O-2].[O-2].[O-2].[F-].[Mg+2].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[K+].[K+].[K+].[Fe+2].O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2 VGIBGUSAECPPNB-UHFFFAOYSA-L 0.000 claims description 2
- 239000011022 opal Substances 0.000 claims description 2
- 229910052625 palygorskite Inorganic materials 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 238000007599 discharging Methods 0.000 abstract description 13
- 230000009286 beneficial effect Effects 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000010008 shearing Methods 0.000 abstract description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 8
- 238000004332 deodorization Methods 0.000 description 7
- 238000001125 extrusion Methods 0.000 description 7
- 239000004615 ingredient Substances 0.000 description 6
- 239000000654 additive Substances 0.000 description 5
- 230000000996 additive effect Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
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- 239000002253 acid Substances 0.000 description 1
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- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
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- 239000002361 compost Substances 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- SHFGJEQAOUMGJM-UHFFFAOYSA-N dialuminum dipotassium disodium dioxosilane iron(3+) oxocalcium oxomagnesium oxygen(2-) Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Na+].[Na+].[Al+3].[Al+3].[K+].[K+].[Fe+3].[Fe+3].O=[Mg].O=[Ca].O=[Si]=O SHFGJEQAOUMGJM-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
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- 238000003379 elimination reaction Methods 0.000 description 1
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- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
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- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
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- 230000001473 noxious effect Effects 0.000 description 1
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- 238000000746 purification Methods 0.000 description 1
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- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Mixers Of The Rotary Stirring Type (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention relates to a sludge treatment method and a treatment device thereof. The sludge treatment method solves the technical shortcomings of the traditional sludge treatment method that the character of sludge is unchanged and land is difficult to use. The sludge treatment method comprises the following steps of: shearing and crushing sludge after dewatering the sludge, extruding and pelleting the sheared and crushed sludge, stirring an environmental mineral material and sludge particles to obtain a mixture. The treatment device comprises a spiral feed bin, a screw feeder, a comprehensive treatment kettle, a proportioning bin, a spiral discharging machine and a grinder; the spiral feed bin is provided with a spiral auger; the spiral feed bin is connected with the grinder which corresponds to the screw feeder; the screw feeder is connected with the top of the comprehensive treatment kettle; the comprehensive treatment kettle is divided into a squeezing cavity, a proportioning bin and an agitating cavity by pelleting plates with meshes; a squeezing and pelleting auger is arranged in the squeezing cavity; an agitating shaft with agitating blades is arranged in the agitating cavity; the proportioning bin is connected with a proportioning port of the comprehensive treatment kettle; and a discharging port of the comprehensive treatment kettle corresponds to a charging port of the spiral discharging machine. The sludge treatment method has the beneficial effects that the method is simple, the technological process is short, and the cost is low. The treatment device is compact, good in operational stability and reliability and pollution-free in the treating process.
Description
Technical field
The present invention relates to the sludge treatment category of field of Environment Protection, particularly a kind of method for sludge treatment and treatment unit thereof.
Technical background
In the waste water producing in human lives and various rubbish thereof, produce a large amount of mud; this mud has become a difficult problem for environment protection; how this mud of processing of science environmental protection makes it reduce pollution and the utilization of resources or the back to nature of environment, will become industry technical problem urgently to be resolved hurrily.
In prior art, to the processing of mud, be main employing: landfill mud---be actually passively " escape " mud, waste resource, land occupation, and become source of pollution.Burning sludge---be extreme " elimination " mud in essence, with expensive fuel energy, eliminated non-renewable loam resource, and secondary pollution; Mud is for building materials filler, compost---and be unscientific passive " utilization " mud.
At present, the soil utilization of sludge resource is also only only limited to compost method, the sludge quantity huge with China, needs treatment capacity, utilization ratio to compare, and land resources utilization technology and equipment still has very large gap.And have that treatment technology level is low, industrialization degree is not high, unstable product quality, the treatment time is long, landed property is many, treatment capacity is little and processing after product still to environment with make the problems such as deposits yields harm.Therefore sludge composting technology and product, be difficult to the whole land resources utilizations of mud.There is no both at home and abroad the treatment technology of the whole soil of mud, treatment unit and final product at present.
Summary of the invention
Utilize nuisanceless, free of contamination mineral material, mud is improved, made its performance complement, comprehensive, with the mode lignin-sludge that physics and chemistry is worked in coordination with, organic-inorganic merges, environment mineral material and sludge resource fusion are used for improveing soil, make fertilizer, are starting point of the present invention and object.
The present invention overcomes that prior art does not change the proterties of mud to the processing of mud and the technical deficiency cannot soil utilized, the present invention discloses a kind of method for sludge treatment and treatment unit thereof, by to the processing of mud with add environment mineral material, because environment mineral material is to the interaction between mud, realize the soil utilization of mud, reach the recycle of environmental protection.
The goal of the invention for the treatment of process of the present invention is achieved in that this treatment process has following steps to realize:
(1), mud is carried out to processed, make water ratio in mud be less than 85%;
(2), the mud after dehydration is sheared to pulverizing;
(3), the mud after shear pulverizing is carried out to extruder grain, the particle diameter of the mud after extruder grain is less than 8mm;
(4) by water ratio, be, to be less than 30% environment mineral material, crush and screen particle diameter for being less than 10mm, by weight, the mud granule 95-60% that (3) 10-50% environment mineral material and step obtain carries out uniform stirring, obtains mud and the environment mineral material mixture of soil.
The goal of the invention for the treatment of unit of the present invention is achieved in that this treatment unit comprises: spiral feeding warehouse, screw feeder, comprehensive treating process still, batch bin, spiral discharging machine and pulverizer, in described spiral feeding warehouse, be provided with band screw auger, the outlet of spiral feeding warehouse is connected with the feeding mouth of pulverizer, the discharge port of pulverizer is corresponding with screw feeder feeding mouth, and screw feeder discharge port is connected with the feeding mouth on comprehensive treating process still top.
Described comprehensive treating process still comprises: extruder grain auger, with the marume plate of mesh, with the stir shaft of agitating vane, marume plate with mesh is divided into extrusion chamber, batching chamber and stir chamber by comprehensive treating process still, extruder grain auger is arranged in extrusion chamber, stir shaft with agitating vane is arranged in stir chamber, comprehensive treating process still is provided with ingredients mouth on the sidewall in batching chamber, and the bottom of stir chamber is provided with comprehensive treating process still discharge port.
Described batch bin is connected with the ingredients mouth of comprehensive treating process still, and comprehensive treating process still discharge port is corresponding with spiral discharging machine feeding mouth.
The invention has the beneficial effects as follows, treatment process is simple, and technical process is short, and processing cost is low.Treatment unit compact construction, operation stability and good reliability, treating processes is pollution-free.
Below in conjunction with accompanying drawing, describe the present invention.
Accompanying drawing explanation
Accompanying drawing is treatment unit structural representation of the present invention.
In accompanying drawing, 1 spiral feeding warehouse, 1-1 screw auger; 2 screw feeders; 3 comprehensive treating process stills, 3-1 feeding mouth, 3-2 extruder grain auger, 3-3 is with the marume plate of mesh, 3-4 is with the stir shaft of agitating vane, 3-5 extrusion chamber, the 3-6 chamber of preparing burden, 3-7 stir chamber, 3-8 ingredients mouth, 3-9 comprehensive treating process still discharge port, 3-10 heating duct, 3-11 calorifier; 4 batch bins; 5 spiral discharging machines; 6 pulverizers; 7 auxiliary material storehouses, 7-1 auxiliary material discharge port; 8 sterilization and deodorization batch cans; 9 microwave generators; 10 additive storage bin; 11 sterilizing lamps; 12 discharge ports.Embodiment
A treatment process for mud, this treatment process has following steps to realize:
(1), mud is carried out to processed, make water ratio in mud be less than 85%;
(2), the mud after dehydration is sheared to pulverizing;
(3), the mud after shear pulverizing is carried out to extruder grain, the particle diameter of the mud after extruder grain is less than 8mm:
, environment mineral material that water ratio is less than to 30%, crush and screen particle diameter and be less than 10mm, by weight, the mud granule 95-60% that (3) 10-50% environment mineral material and step obtain carries out uniform stirring, obtains mud and the environment mineral material mixture of soil.
The object that mud is sheared pulverization process is, can be by particle pulverizing, liquid grain and cell wall breaking, molecular rupture, cut-out mycelia and macrofiber shape material in mud, reduce the viscosity of mud, change mud colloid character structure, after shearing-crushing modification, homogenization treatment, guarantee that the treatment process such as downstream extruder grain are smooth, do not stop up, be beneficial to deodoring and disinfecting and process, be beneficial to sludge modification and be beneficial to utilization.
The object of adding environment mineral material is, because environment mineral material has purification function and the repairing effect of good chemically reactive, physical influence, biotic interactions, ion-exchange performance, strong absorption property, strong dispersing property (agglomeration resistance) and adjustment microenvironment, the viscosity that can improve mud is large, particle is thin, density is little, than great, characteristic, the structures such as ventilation property is poor, improve ventilation property and the aquosity of mud, make acid sludge become neutral mud, also can play shock absorption, hinder the rapid variation of pH value, the nutritive ingredient in mud is slowly discharged; Also can increase the content of the elements such as Mn, Cu, Zn of K in mud, Mg, Ca, Fe and trace.Environment mineral material is free from environmental pollution, also can improve soil with the mixture of mud, make fertilizer, there is fertilizer conservation, water conservation, water storage, loose ventilative, mineral manure and prevention is inorganic or the multiple action such as the migration of organic noxious pollutant, stable curing heavy metal, be beneficial to soil utilization.
In the embodiment of the present invention, step (4) in, environment mineral material and mud granule carry out, in whipping process, passing into hot blast in stirred vessel, its mixture is carried out to mummification and Pesticidal and sterilizing and process.
In the embodiment of the present invention, for the mud as fertilizer sources after making to process is used, step (4) in, environment mineral material and mud granule carry out in whipping process, add nutritive element, reodorant to obtain soil and fertilizer.
In the embodiment of the present invention, the environment mineral material of step described in is (4) the one or more combination in zeolite, sepiolite, wilkinite, diatomite, perlite, attapulgite, unslaked lime, kaolinite, montmorillonite, illite, polygorskite, light-weighted opal, medical stone, pyrolusite, vermiculite etc., preferred zeolite, sepiolite, wilkinite, unslaked lime, diatomite or vermiculite, all can realize goal of the invention.
In the embodiment of the present invention, the environment mineral material of step described in is (4) that vermiculite is most preferred embodiment.It is low that vermiculite has cost, and resource extensively has modified function to mud, and soil is had to enhanced property.
A kind for the treatment of unit of mud, this treatment unit comprises: spiral feeding warehouse 1, screw feeder 2, comprehensive treating process still 3, batch bin 4, spiral discharging machine 5 and pulverizer 6, in described spiral feeding warehouse 1, be provided with screw auger 1-1,1 outlet of spiral feeding warehouse is connected with the feeding mouth of pulverizer 6, the discharge port of pulverizer 6 is corresponding with screw feeder 2 feeding mouths, and screw feeder 2 discharge ports are connected with the feeding mouth 3-1 on comprehensive treating process still 3 tops.
Described comprehensive treating process still 3 comprises: feeding mouth 3-1, extruder grain auger 3-2, with the marume plate 3-3 of mesh, with the stir shaft 3-4 of agitating vane, marume plate 3-3 with mesh is divided into extrusion chamber 3-5, batching chamber 3-6 and stir chamber 3-7 by comprehensive treating process still 3, extruder grain auger 3-2 is arranged in extrusion chamber 3-5, stir shaft 3-4 with agitating vane is arranged in stir chamber 3-7, comprehensive treating process still 3 is provided with ingredients mouth 3-8 on the sidewall of batching chamber 3-6, and the bottom of stir chamber 3-7 is provided with comprehensive treating process bin discharge port external 3-9.
Described batch bin 4 is connected with the ingredients mouth 3-8 of comprehensive treating process still 3, and comprehensive treating process still discharge port 3-9 is corresponding with spiral discharging machine 5 feeding mouths.
During use, mud after processed enters spiral feeding warehouse 1, under screw auger effect, enter pulverizer 6 and shear pulverizing, after shearing pulverizing, send into screw feeder 2, mud after screw feeder 2 is pulverized shearing is sent into the extrusion chamber 3-5 of comprehensive treating process still 3, mud is under screw extrusion auger 3-2 effect, after the mesh of mud by the marume plate 3-3 with mesh, form strip, because sludge intensity is poor and gravity, strip mud breaks to form particulate state, fall into batching chamber 3-6, environment mineral material in batch bin 4 sprays into batching chamber 3-6 to be mixed with mud granule, under stir shaft 3-4 effect, stir and be mixed, after being mixed, stirring sends into spiral discharging machine 5 outputs.
In the embodiment of the present invention, for mud being added to auxiliary material and sterilization and deodorization, described screw feeder 2 and spiral discharging machine 5 are hollow ribbon auger structure for conveying, along on the axis of screw feeder 2, be provided with auxiliary material storehouse 7 and sterilization and deodorization batch can 8, the auxiliary material discharge port 7-1 of 7 bottoms, auxiliary material storehouse is corresponding with the ribbon auger of screw feeder 2, and the sterilization and deodorization medicament mouth spray of sterilization and deodorization batch can 8 bottoms is corresponding with the ribbon auger of screw feeder 2.Auxiliary material and sterilization and deodorization medicament in auxiliary material storehouse 7 and sterilization and deodorization batch can 8 directly join in the mud in screw feeder 2.
In the embodiment of the present invention, for mud is implemented to mummification, described comprehensive treating process still 3, on the sidewall of stir chamber 3-7, is provided with heating duct 3-10, has heating duct 3-10 to be communicated with stir chamber 3-7, and heating duct 3-10 one end is connected with calorifier 3-11.Calorifier 3-11 carries out drying and other treatment to comprehensive treating process still 3 blowing hot-airs to the mixture in comprehensive treating process still 3 through heating duct 3-10, and has Pesticidal and sterilizing synergy.
In the embodiment of the present invention, for mud being implemented to nutritive element additive, further mummification and sterilization, along on the axis of spiral discharging machine 5, be provided with microwave generator 9, additive storage bin 10 and sterilizing lamp 11, microwave generator 9 and sterilizing lamp 11 are corresponding with the ribbon auger of spiral discharging machine 5 respectively, the additive discharge port of additive storage bin 10 is corresponding with the ribbon auger of spiral discharging machine 5, and 12 is discharge port.
Claims (5)
1. a treatment process for mud, is characterized in that: this treatment process realizes according to the following steps:
(1), mud is carried out to processed, make water ratio in mud be less than 85%;
(2), the mud after dehydration is sheared to pulverizing;
(3), the mud after shear pulverizing is carried out to extruder grain, the mud particle diameter after extruder grain is less than 8mm;
(4) by water ratio, be, to be less than 30% environment mineral material, crush and screen particle diameter and be less than 10mm, by weight, the 95-60% mud granule that (3) 10-50% environment mineral material and step obtained carries out uniform stirring, obtains mud and the environment mineral material mixture of soil.
2. the treatment process of a kind of mud according to claim 1, is characterized in that: step (4) in, environment mineral material and mud granule carry out, in whipping process, passing into hot blast in stirred vessel, and its mixture is carried out to mummification and Pesticidal and sterilizing is processed.
3. the treatment process of a kind of mud according to claim 1 and 2, is characterized in that: step (4) in, environment mineral material and mud granule carry out in whipping process, add nutritive element, reodorant to obtain soil and fertilizer.
4. the treatment process of a kind of mud according to claim 1 and 2, is characterized in that: the environment mineral material of step described in is (4) the one or more combination in zeolite, sepiolite, wilkinite, diatomite, attapulgite, unslaked lime, kaolinite, montmorillonite, illite, polygorskite, light-weighted opal, medical stone, pyrolusite, vermiculite.
5. the treatment process of a kind of mud according to claim 1 and 2, is characterized in that: the environment mineral material of step described in is (4) vermiculite, unslaked lime.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210193100.1A CN102701550B (en) | 2012-06-13 | 2012-06-13 | Sludge treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210193100.1A CN102701550B (en) | 2012-06-13 | 2012-06-13 | Sludge treatment method |
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| Publication Number | Publication Date |
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| CN102701550A CN102701550A (en) | 2012-10-03 |
| CN102701550B true CN102701550B (en) | 2014-04-09 |
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| CN201210193100.1A Expired - Fee Related CN102701550B (en) | 2012-06-13 | 2012-06-13 | Sludge treatment method |
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| CN102010108A (en) * | 2010-10-08 | 2011-04-13 | 聊城金太阳生物化工有限公司 | Industrial sludge treatment method and method for preparing various fertilizers by using treated industrial sludge |
| CN102173557A (en) * | 2011-03-10 | 2011-09-07 | 北京科技大学 | Method for treating low-heating value excess sludge |
| CN202671362U (en) * | 2012-06-13 | 2013-01-16 | 郑百祥 | Sludge treatment unit |
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2012
- 2012-06-13 CN CN201210193100.1A patent/CN102701550B/en not_active Expired - Fee Related
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5429750A (en) * | 1993-06-25 | 1995-07-04 | Hazen & Sawyer, P.C. | Method of treating wastewater sludges for pathogen removal and vector control |
| JP2001254391A (en) * | 2000-03-08 | 2001-09-21 | Hitachi Constr Mach Co Ltd | Sludge cake grain refining system, mobile granulating machine to be used for the same, and sludge cake grain refining method |
| CN1384081A (en) * | 2001-04-29 | 2002-12-11 | 河北建设集团有限公司 | System of producing organic fertilizer with sludge |
| CN1371877A (en) * | 2002-04-16 | 2002-10-02 | 陈子庭 | Method for preventing and controlling sand by utilizing urban organic wastes |
| CN1594225A (en) * | 2004-06-18 | 2005-03-16 | 李成义 | Series special fertilizer prepared by urban sludge and its preparation method |
| CN2880295Y (en) * | 2005-11-22 | 2007-03-21 | 吴桐 | Food and beverage refuse comprehensive treatment system |
| CN101618933A (en) * | 2009-05-26 | 2010-01-06 | 屈智和 | Method for treating sludge of urban sewage treatment plant |
| CN101671211A (en) * | 2009-09-16 | 2010-03-17 | 温奕区 | Method for producing insecticidal fertilizer by pesticide waste liquid processed by activated sludge bacteria particles |
| CN102010108A (en) * | 2010-10-08 | 2011-04-13 | 聊城金太阳生物化工有限公司 | Industrial sludge treatment method and method for preparing various fertilizers by using treated industrial sludge |
| CN102173557A (en) * | 2011-03-10 | 2011-09-07 | 北京科技大学 | Method for treating low-heating value excess sludge |
| CN202671362U (en) * | 2012-06-13 | 2013-01-16 | 郑百祥 | Sludge treatment unit |
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| CN102701550A (en) | 2012-10-03 |
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