CN102432007A - Method for preparing activated carbon by physically activating excess sludge - Google Patents
Method for preparing activated carbon by physically activating excess sludge Download PDFInfo
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- CN102432007A CN102432007A CN2011102858954A CN201110285895A CN102432007A CN 102432007 A CN102432007 A CN 102432007A CN 2011102858954 A CN2011102858954 A CN 2011102858954A CN 201110285895 A CN201110285895 A CN 201110285895A CN 102432007 A CN102432007 A CN 102432007A
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- excess sludge
- activated carbon
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- 239000010802 sludge Substances 0.000 title claims abstract description 32
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000003213 activating effect Effects 0.000 title abstract 2
- 230000004913 activation Effects 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000002360 preparation method Methods 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 13
- 238000003763 carbonization Methods 0.000 claims description 8
- 239000011280 coal tar Substances 0.000 claims description 8
- 230000018044 dehydration Effects 0.000 claims description 8
- 238000006297 dehydration reaction Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 239000002918 waste heat Substances 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 6
- 238000012216 screening Methods 0.000 claims description 5
- 239000003610 charcoal Substances 0.000 claims description 4
- 239000002817 coal dust Substances 0.000 claims description 4
- 239000002023 wood Substances 0.000 claims description 3
- 239000005539 carbonized material Substances 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 239000010865 sewage Substances 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000002351 wastewater Substances 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract 1
- 239000002910 solid waste Substances 0.000 abstract 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 229910052740 iodine Inorganic materials 0.000 description 4
- 239000011630 iodine Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000012778 molding material Substances 0.000 description 4
- 239000010801 sewage sludge Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 208000036829 Device dislocation Diseases 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- -1 biogas Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 235000019645 odor Nutrition 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 244000045947 parasite Species 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
Classifications
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Carbon And Carbon Compounds (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention relates to resource treatment of industrial solid waste, in particular to a method for preparing activated carbon by physically activating excess sludge. The sludge activated carbon is prepared by taking excess sludge generated by sewage treatment as a raw material and using water vapor as activated gas through a physical activation method. According to the invention, a large amount of excess sludge generated by sewage treatment is used as a raw material to prepare the activated carbon, and the high-efficiency utilization of energy is realized through recycling of various residual heats, so that the energy consumption for producing ton activated carbon products is low; compared with chemical activation, physical activation is adopted, no large amount of waste water is generated in the preparation process, and the production process is clean and environment-friendly. The invention has good economic benefit, ecological benefit and social benefit.
Description
Technical field
The present invention relates to a kind of disposal of resources of industrial solid castoff, specifically is the physically activated preparation process of active carbon of a kind of excess sludge.
Background technology
Mud is meant the sewage sludge that in sewage work's sewage treatment process, produces, and mainly comprises the excess sludge that produces in the preliminary sedimentation tank primary sludge that produces and the structures of carrying out a biological disposal upon.
Because moisture percentage in sewage sludge is high, volume is big, not only in the process of disposing, takies a large amount of land resources, and in the process of transhipment, very easily takes place to leak and pollute surrounding enviroment; Simultaneously, contain the great number of organic matters material in the mud, run into anaerobic environment corruption can take place, and produce unpleasant odors such as hydrogen sulfide, thiomethyl alcohol.In addition, also contain hazardous and noxious substances and pathogenic bacteria, parasite and hard-degraded substances such as heavy metal in the mud, the safety of human and ecotope in serious threat.If mud can not get scientific and reasonable treatment and disposal, be easy to cause secondary pollution.In addition, most objectionable impuritiess all are by shifting in the sewage in the mud.Can not get scientific and reasonable treatment and disposal if mud arbitrarily throws aside, the WWT work in early stage is equivalent to that all that has been achieved is spoiled so.Therefore, sludge treatment is disposed has become wastewater treatment in China industry and the fast-developing bottleneck of Development of China's Urbanization.At present, improper by sewage sludge disposal and social concern that cause makes first appearance.For example, Xiamen City 7 tame sewage works increase more than 500 ton of mud average every day, and these mud are had nowhere to go, and heap is many more more.Owing to be difficult to find interim landfill place, part of contaminated water treatment plant even face the crisis that shuts down.Also having the mud of " first major case is polluted in the capital " discussed warmly by the insider to steal row's incident makes the mud problem become the focus that various circles of society pay close attention to once more.
To the raising of environmental standard requirement and appearing gradually of mud traditional treatment method drawback, press for a kind of resource technology along with in recent years with the thorough treatment and disposal of mud.
Summary of the invention
The objective of the invention is to deficiency, provide a kind of excess sludge physically activated preparation process of active carbon to prior art.
1. technical scheme of the present invention is: the physically activated preparation process of active carbon of a kind of excess sludge, and its concrete steps are following:
(1), will be behind mechanical dehydration the excess sludge of quality water ratio 75～85%; Be dried to quality water ratio 25～40% through 110～120 ℃ earlier; Add the quality percentage composition account for the over dry sludge quantity again and be 1～10% the quality percentage composition that increases the charcoal material, accounts for the over dry sludge quantity and be 1～5% coal tar sticker, stir; Or directly to the excess sludge of quality water ratio 75～85% behind mechanical dehydration, adding the quality percentage composition that accounts for the over dry sludge quantity and be 1～10% increase charcoal material and the quality percentage composition that accounts for the over dry sludge quantity is 1～5% coal tar sticker, stirs;
(2), under 50～150MPa pressure, extrusion molding;
(3), pressed active carbon under 110～120 ℃, dry 2～6h;
(4), at 300～500 ℃ of carbonization 0.5～2h in carbide furnace, obtain carbonized stock, the tail gas that carbonization produces feeds waste heat boiler and burns;
(5), in activation furnace, feed water vapour, carbonized material is at 700～950 ℃ of activation 1～3h, the activation furnace discharging promptly makes gac through screening.
Preferred described carburetting material is at least a kind of in wood chip, stalk, shell or the coal dust.
Tail gas in the carbide furnace described in the preferred steps (4) is sent in the waste heat boiler through induced draft fan and is burnt, and the heat water generates of generation is used for the water vapor of step (5).
Step (5) the activation furnace exhaust temperature of coming out of the stove is higher, can be used at least step (1) or (3) drying source.
When this device moved for the first time, thermal source provided through adding other fuel combustions, and extra fuel comprises: natural gas, biogas, diesel oil, oil or coal.
Beneficial effect:
1, with mud is the feedstock production gac, for the treatment and disposal of mud finds a way out, cheaply can gets for Activated Carbon Production has found simultaneously, the raw material of wide material sources, can alleviate China's timber, energy starved contradiction.
2, through multiple residual heat recovery, realized the efficient utilization of the energy, thereby the energy consumption of production ton activated carbon product is low.
3, compare with chemical activation, adopt physically activatedly, no a large amount of waste water produces in the process of preparation, the production process clean environment firendly.
Description of drawings
Fig. 1 is method technology of the present invention (enforcement 1 and enforcement a 2) schema;
Fig. 2 is method technology of the present invention (enforcement 3 and enforcement a 4) schema.
Embodiment
Embodiment 1:
As shown in Figure 1; After getting mechanical dehydration, certain petro-chemical corporation's excess sludge of quality water ratio 75% is dried to quality water ratio 25% through going out furnace exhaust gas with activation furnace in 110 ℃; The coal tar that adds the coal dust and 5% (mass percent) that accounts for over dry sludge quantity 5% (mass percent) again; Behind stirring, the mixing, under 50MPa pressure, extrusion molding; Molding materials is gone out furnace exhaust gas with activation furnace be delivered to 350 ℃ of carbonization 2h of carbide furnace in 110 ℃ of dry 6h, dried materials; Carbonized stock is delivered to the feeding water vapor, and (tail gas in the carbide furnace is sent in the waste heat boiler through induced draft fan and is burnt; The heat water generates that produces) 700 ℃ of activation 3h of activation furnace, the activation furnace discharging makes gac through screening.Through detecting its specific surface area: 287m
2/ g, iodine number: 362mg/g, intensity 93%.
Embodiment 2:
As shown in Figure 1, get mechanical dehydration after, certain medication chemistry factory sewage treatment plant residual mud of quality water ratio 85%; Water ratio is 85% after the belt press filtration; Be dried to quality water ratio 40% through go out furnace exhaust gas with activation furnace in 120 ℃, add the coal tar of the coal dust and 1% (mass percent) that accounts for over dry sludge quantity 10% (mass percent) again, stir, behind the mixing; Under 150MPa pressure, extrusion molding; Molding materials is gone out furnace exhaust gas with activation furnace be delivered to 500 ℃ of carbonization 0.5h of carbide furnace in 120 ℃ of dry 2h, dried materials; Carbonized stock is delivered to the feeding water vapor, and (tail gas in the carbide furnace is sent in the waste heat boiler through induced draft fan and is burnt; The heat water generates that produces) 850 ℃ of activation 1.5h of activation furnace, the activation furnace discharging makes gac through screening.Through detecting its specific surface area: 317m
2/ g, iodine number: 390mg/g, intensity 90%.
Embodiment 3:
As shown in Figure 2, get mechanical dehydration after, certain sanitary sewage disposal plant excess sludge of quality water ratio 85%; Add sawdust and 3% (mass percent) coal tar that accounts for over dry sludge quantity 4% (mass percent); Behind stirring, the mixing, under 100MPa pressure, extrusion molding; Molding materials is gone out furnace exhaust gas with activation furnace be delivered to 500 ℃ of carbonization 0.5h of carbide furnace in 110 ℃ of dry 4h, dried materials; Carbonized stock is delivered to the feeding water vapor, and (tail gas in the carbide furnace is sent in the waste heat boiler through induced draft fan and is burnt; The heat water generates that produces) 950 ℃ of activation 1h of activation furnace, the activation furnace discharging makes gac through screening.Through detecting its specific surface area: 336m
2/ g, iodine number: 422mg/g, intensity 91%.
Embodiment 4:
As shown in Figure 2, get mechanical dehydration after, certain insecticide factory's sewage treatment plant residual mud of quality water ratio 80%; Add wood chip that accounts for over dry sludge quantity 1% (mass percent) and the coal tar that accounts for over dry sludge quantity 1% (mass percent); Behind stirring, the mixing, under 150MPa pressure, extrusion molding; Molding materials is gone out furnace exhaust gas with activation furnace be delivered to 400 ℃ of carbonization 0.5h of carbide furnace, discharging entering activation furnace in 120 ℃ of dry 3h, dried materials; (tail gas in the carbide furnace is sent in the waste heat boiler through induced draft fan and is burnt to feed water vapor; The heat water generates that produces) 800 ℃ of activated carbon dissolve material 2h, make gac after the activation furnace discharging cooling.Record specific surface area: 313m
2/ g, iodine number: 405mg/g, intensity 90%.
Claims (4)
1. physically activated preparation process of active carbon of excess sludge, its concrete steps are following:
(1), will be behind mechanical dehydration the excess sludge of quality water ratio 75～85%; Be dried to quality water ratio 25～40% through 110～120 ℃ earlier; Add the quality percentage composition account for the over dry sludge quantity again and be 1～10% the quality percentage composition that increases the charcoal material, accounts for the over dry sludge quantity and be 1～5% coal tar sticker, stir; Or directly to the excess sludge of quality water ratio 75～85% behind mechanical dehydration, adding the quality percentage composition that accounts for the over dry sludge quantity and be 1～10% increase charcoal material and the quality percentage composition that accounts for the over dry sludge quantity is 1～5% coal tar sticker, stirs;
(2), under 50～150MPa pressure, extrusion molding;
(3), pressed active carbon under 110～120 ℃, dry 2～6h;
(4), at 300～500 ℃ of carbonization 0.5～2h in carbide furnace, obtain carbonized stock, the tail gas that carbonization produces feeds waste heat boiler and burns;
(5), in activation furnace, feed water vapour, carbonized material is at 700～950 ℃ of activation 1～3h, the activation furnace discharging promptly makes gac through screening.
2. method according to claim 1 is characterized in that described carburetting material is at least a kind of in wood chip, stalk, shell or the coal dust.
3. method according to claim 1, it is characterized in that tail gas in the carbide furnace described in the step (4) is sent in the waste heat boiler through induced draft fan burns, and the heat water generates of generation is used for the water vapor of step (5).
4. method according to claim 1, it is characterized in that institute's step (5) activation furnace go out furnace exhaust gas be used at least step (1) or (3) drying source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102858954A CN102432007A (en) | 2011-09-23 | 2011-09-23 | Method for preparing activated carbon by physically activating excess sludge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102858954A CN102432007A (en) | 2011-09-23 | 2011-09-23 | Method for preparing activated carbon by physically activating excess sludge |
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| CN102432007A true CN102432007A (en) | 2012-05-02 |
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| CN2011102858954A Pending CN102432007A (en) | 2011-09-23 | 2011-09-23 | Method for preparing activated carbon by physically activating excess sludge |
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Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701200A (en) * | 2012-05-14 | 2012-10-03 | 北京工业大学 | Method for preparing active carbon from municipal sludge by two-step thermal decomposition |
| CN102936012A (en) * | 2012-12-05 | 2013-02-20 | 东南大学 | Method for preparing activated carbon with sludge serving as raw material |
| CN103521179A (en) * | 2013-09-29 | 2014-01-22 | 福建工程学院 | One-step method for preparing sludge-based formed magnetic active carbon |
| CN103936005A (en) * | 2014-04-16 | 2014-07-23 | 邹炎 | System and method for recycling petrochemical industrial waste |
| CN104028221A (en) * | 2014-06-25 | 2014-09-10 | 无锡市崇安区科技创业服务中心 | Magnetic active carbon and preparation method thereof |
| CN104096541A (en) * | 2014-07-24 | 2014-10-15 | 扬州荣康空气净化设备有限公司 | Preparation method for regenerative active adsorbent through solid wastes and plants |
| CN104495841A (en) * | 2014-12-09 | 2015-04-08 | 西南石油大学 | Preparation method of walnut shell-doped sludge activated carbon |
| CN104789236A (en) * | 2015-04-30 | 2015-07-22 | 吴植仁 | Internal-combustion type biomass particle material drying, carbonizing and activating integrated furnace |
| CN104818036A (en) * | 2015-04-30 | 2015-08-05 | 吴植仁 | Method for using self-produced sludge carbon to perform sewage treatment and sludge carbonizing system |
| CN105170090A (en) * | 2015-10-13 | 2015-12-23 | 中国石油化工股份有限公司 | Method for preparing residual active sludge-based active carbon water treatment agent |
| CN105170089A (en) * | 2015-10-13 | 2015-12-23 | 中国石油化工股份有限公司 | Method for preparing chemical leakage accident adsorbents from excess activated sludge |
| CN105523555A (en) * | 2016-01-14 | 2016-04-27 | 上海交通大学 | Activated carbon preparation method of sludge type argillaceous biomass |
| CN106744952A (en) * | 2016-11-29 | 2017-05-31 | 中冶华天南京工程技术有限公司 | The method that sewage sludge prepares modified active coke |
| CN107188167A (en) * | 2017-05-24 | 2017-09-22 | 上海理工大学 | A kind of method that utilization activated by urine municipal sludge prepares active sludge carbon |
| CN107628619A (en) * | 2017-09-15 | 2018-01-26 | 深圳市水务(集团)有限公司 | A kind of preparation method of the rich nitrogen active sludge carbon of adulterated food leftover bits and pieces |
| CN107640771A (en) * | 2016-07-22 | 2018-01-30 | 中国科学院大学 | A kind of compound matrix activated carbon of sludge coal and preparation method thereof |
| CN107651684A (en) * | 2016-07-26 | 2018-02-02 | 广州城辉环保科技有限公司 | A kind of method that carbonization manufacture activated carbon is pyrolyzed with municipal sludge |
| CN109201000A (en) * | 2018-10-15 | 2019-01-15 | 成都恩承科技股份有限公司 | A kind of method of one step of oil gas field oil sludge manufacture acticarbon |
| CN110002444A (en) * | 2019-04-10 | 2019-07-12 | 浙江清风源环保科技有限公司 | The preparation method of active carbon and active carbon |
| CN110078074A (en) * | 2019-04-10 | 2019-08-02 | 浙江清风源环保科技有限公司 | A kind of preparation of high absorption property sludge base charcoal and activation method |
| CN110655076A (en) * | 2019-11-15 | 2020-01-07 | 山西新华化工有限责任公司 | Production process for preparing activated carbon from sludge |
| CN111392969A (en) * | 2020-04-01 | 2020-07-10 | 北京鼎勝投资管理有限公司 | Method for treating sewage thick matter |
| CN111453727A (en) * | 2020-05-26 | 2020-07-28 | 上海化工研究院有限公司 | Preparation method of sludge-straw composite biomass activated carbon |
| CN112279243A (en) * | 2020-10-21 | 2021-01-29 | 太原理工大学 | Coal gangue-sludge-based activated carbon, preparation method thereof and application thereof in mediating and strengthening anaerobic digestion of sewage |
| CN113003572A (en) * | 2021-04-16 | 2021-06-22 | 中晶城康资源再生利用技术有限公司 | Method for preparing activated carbon from sludge and activated carbon |
| CN113184844A (en) * | 2021-05-25 | 2021-07-30 | 马鞍山钢铁股份有限公司 | Method for preparing activated carbon by using carbon-containing dust and mud |
| CN114873594A (en) * | 2022-05-06 | 2022-08-09 | 山东海普欧环保设备科技有限公司 | Method for preparing activated carbon from sludge |
| CN115676823A (en) * | 2022-10-31 | 2023-02-03 | 城康材料技术有限公司 | Sludge-based activated carbon, preparation method thereof and application thereof in adsorption of organic matters in wastewater |
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| CN102701200A (en) * | 2012-05-14 | 2012-10-03 | 北京工业大学 | Method for preparing active carbon from municipal sludge by two-step thermal decomposition |
| CN102936012A (en) * | 2012-12-05 | 2013-02-20 | 东南大学 | Method for preparing activated carbon with sludge serving as raw material |
| CN103521179B (en) * | 2013-09-29 | 2015-08-19 | 福建工程学院 | One-step method prepares the method for sludge based forming magnetic active carbon |
| CN103521179A (en) * | 2013-09-29 | 2014-01-22 | 福建工程学院 | One-step method for preparing sludge-based formed magnetic active carbon |
| CN103936005A (en) * | 2014-04-16 | 2014-07-23 | 邹炎 | System and method for recycling petrochemical industrial waste |
| CN104028221A (en) * | 2014-06-25 | 2014-09-10 | 无锡市崇安区科技创业服务中心 | Magnetic active carbon and preparation method thereof |
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| CN104495841A (en) * | 2014-12-09 | 2015-04-08 | 西南石油大学 | Preparation method of walnut shell-doped sludge activated carbon |
| CN104789236A (en) * | 2015-04-30 | 2015-07-22 | 吴植仁 | Internal-combustion type biomass particle material drying, carbonizing and activating integrated furnace |
| CN104818036A (en) * | 2015-04-30 | 2015-08-05 | 吴植仁 | Method for using self-produced sludge carbon to perform sewage treatment and sludge carbonizing system |
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| CN105170089A (en) * | 2015-10-13 | 2015-12-23 | 中国石油化工股份有限公司 | Method for preparing chemical leakage accident adsorbents from excess activated sludge |
| CN105523555B (en) * | 2016-01-14 | 2017-10-03 | 上海交通大学 | A kind of activated carbon preparation method of sludge class shale biomass |
| CN105523555A (en) * | 2016-01-14 | 2016-04-27 | 上海交通大学 | Activated carbon preparation method of sludge type argillaceous biomass |
| CN107640771A (en) * | 2016-07-22 | 2018-01-30 | 中国科学院大学 | A kind of compound matrix activated carbon of sludge coal and preparation method thereof |
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| CN106744952A (en) * | 2016-11-29 | 2017-05-31 | 中冶华天南京工程技术有限公司 | The method that sewage sludge prepares modified active coke |
| CN107188167A (en) * | 2017-05-24 | 2017-09-22 | 上海理工大学 | A kind of method that utilization activated by urine municipal sludge prepares active sludge carbon |
| CN107188167B (en) * | 2017-05-24 | 2019-06-28 | 上海理工大学 | A method of active sludge carbon is prepared using activated by urine municipal sludge |
| CN107628619A (en) * | 2017-09-15 | 2018-01-26 | 深圳市水务(集团)有限公司 | A kind of preparation method of the rich nitrogen active sludge carbon of adulterated food leftover bits and pieces |
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| CN110002444A (en) * | 2019-04-10 | 2019-07-12 | 浙江清风源环保科技有限公司 | The preparation method of active carbon and active carbon |
| CN110655076A (en) * | 2019-11-15 | 2020-01-07 | 山西新华化工有限责任公司 | Production process for preparing activated carbon from sludge |
| CN111392969A (en) * | 2020-04-01 | 2020-07-10 | 北京鼎勝投资管理有限公司 | Method for treating sewage thick matter |
| CN111453727A (en) * | 2020-05-26 | 2020-07-28 | 上海化工研究院有限公司 | Preparation method of sludge-straw composite biomass activated carbon |
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| CN112279243B (en) * | 2020-10-21 | 2022-05-17 | 太原理工大学 | Coal gangue-sludge-based activated carbon, preparation method thereof and application thereof in mediating and strengthening anaerobic digestion of sewage |
| CN113003572A (en) * | 2021-04-16 | 2021-06-22 | 中晶城康资源再生利用技术有限公司 | Method for preparing activated carbon from sludge and activated carbon |
| CN113184844A (en) * | 2021-05-25 | 2021-07-30 | 马鞍山钢铁股份有限公司 | Method for preparing activated carbon by using carbon-containing dust and mud |
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| CN115676823A (en) * | 2022-10-31 | 2023-02-03 | 城康材料技术有限公司 | Sludge-based activated carbon, preparation method thereof and application thereof in adsorption of organic matters in wastewater |
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Application publication date: 20120502 |