CN102183027A - Treatment method of high calorific value excess sludge - Google Patents
Treatment method of high calorific value excess sludge Download PDFInfo
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- CN102183027A CN102183027A CN 201110057325 CN201110057325A CN102183027A CN 102183027 A CN102183027 A CN 102183027A CN 201110057325 CN201110057325 CN 201110057325 CN 201110057325 A CN201110057325 A CN 201110057325A CN 102183027 A CN102183027 A CN 102183027A
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- 239000010802 sludge Substances 0.000 title claims abstract description 91
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000008187 granular material Substances 0.000 claims abstract description 37
- 239000000843 powder Substances 0.000 claims abstract description 30
- 238000001035 drying Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 230000018044 dehydration Effects 0.000 claims abstract description 5
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 5
- 239000000446 fuel Substances 0.000 claims abstract description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 30
- 239000003546 flue gas Substances 0.000 claims description 30
- 230000008676 import Effects 0.000 claims description 17
- 239000002351 wastewater Substances 0.000 claims description 9
- 238000004065 wastewater treatment Methods 0.000 claims description 7
- 238000005056 compaction Methods 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000010801 sewage sludge Substances 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 239000003517 fume Substances 0.000 abstract 1
- 238000005469 granulation Methods 0.000 abstract 1
- 230000003179 granulation Effects 0.000 abstract 1
- 238000000227 grinding Methods 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- 239000002918 waste heat Substances 0.000 abstract 1
- 239000010865 sewage Substances 0.000 description 20
- 229910001385 heavy metal Inorganic materials 0.000 description 7
- 239000002689 soil Substances 0.000 description 6
- 235000015097 nutrients Nutrition 0.000 description 4
- 239000000706 filtrate Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 244000052769 pathogen Species 0.000 description 2
- 230000001717 pathogenic effect Effects 0.000 description 2
- FRXSZNDVFUDTIR-UHFFFAOYSA-N 6-methoxy-1,2,3,4-tetrahydroquinoline Chemical compound N1CCCC2=CC(OC)=CC=C21 FRXSZNDVFUDTIR-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000008485 antagonism Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 231100000734 genotoxic potential Toxicity 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 244000045947 parasite Species 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
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- 239000007787 solid Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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- Treatment Of Sludge (AREA)
Abstract
The invention provides a treatment method of high calorific value excess sludge. The method comprises the following steps of: feeding the excess sludge to be treated with moisture content of 80 to 90 percent into a plate-and-frame water filter press for dehydration to obtain a filter-pressing dehydrated sludge cake; feeding the obtained sludge cake into a sludge granulation device; crushing the sludge cake into coarse granules at normal temperature; further drying the sludge granules in a heat energy drying room; feeding the dried sludge granules into sludge powdering equipment for further treatment, wherein the grain diameter of the treated sludge powder is 150 to 300 meshes, and the water ratio is 5 to 15 percent; storing sludge dried powder into a sludge dried powder warehouse, and spraying the sludge powder having small grain diameter and having a calorific value of 2,000 to 4,000 kilocalories into a sludge burning furnace to completely burn with a small amount of fuels or without the fuels, wherein the interior temperature of the burning furnace is 800 to 1,000 DEG C, and secondary pollution is avoided; and then conducting high-temperature fume which is generated by burning into a waste heat drying device, and drying the sludge. By the process, the burning treatment of the sludge can be performed conveniently, the energy consumption of sludge drying is reduced, the excess sludge is treated properly, and the secondary environmental pollution is avoided.
Description
Technical field
The present invention relates to excess sludge and handle and the disposal field, particularly have the method for disposal of the excess sludge of higher calorific value.
Background technology
Excess sludge is the solid sediment matter that produces in the sewage disposal process, contains large quantity of moisture, inorganic ash content and organic volatile.Along with Chinese society economy and development of urbanization, the generation of municipal sewage and quantity thereof are in continuous growth.At present seat surplus the municipal sewage plant about 500 of running has been built up in the whole nation, and a year disposal ability is 113.6 hundred million m
3According to relevant prediction, China's municipal sewage amount also had than leap ahead in next two decades, 2010 the end of the year quantity of wastewater effluent will reach 440 * 108 m
3/ d; The year two thousand twenty quantity of wastewater effluent reaches 536 * 108 m
3/ d.The raising of sewage treating efficiency must cause the increase of excess sludge quantity.According to the national environmental protection department statistics, to the end of the year 2010, China's town sewage handling rate will reach 60%, and annual when the time comes national excess sludge generation will reach 3,000 ten thousand t(moisture content 80%).Excess sludge in the sewage disposal is handled and disposal technology also is in the starting stage in China, the whole nation have now have in the sewage treatment facility that excess sludge stablizes treatment facility be less than 1/4, what treatment process and corollary equipment were comparatively perfect is less than 1/10.Investment and operating cost that excess sludge is handled are huge, can account for 25% ~ 65% of investment of entire sewage factory and operating cost, the heavy burden that has become the municipal sewage plant and faced.
Excess sludge is the accessory after the sewage disposal, is a kind of extremely complicated heterogeneous body of being made up of organic relic, bacterium thalline, inorganic particle, colloid etc.The excess sludge salt content is higher, can obviously improve soil conductivity, destroy the plant nutrient balance, suppress plant to nutrient absorbing, even root system of plant is caused direct injury, and interionic antagonism can be quickened the leaching loss of available nutrient.Pathogen in the sewage (pathogenic microorganism and parasite) can enter in the mud through processing, detects the pathogen that obtains in the fresh sludge and reaches thousand kinds.In sewage disposal process, 70%～90% heavy metal element is transferred in the excess sludge by absorption or precipitation.Some heavy metal elements are mainly derived from the waste water of industrial discharge such as cadmium, chromium; Some heavy metals derive from the pipe-line system such as the heavy metals such as copper, zinc of family life.Heavy metal is the key factor that the extensive soil of restriction excess sludge utilizes, because after excess sludge is applied to soil, heavy metal will accumulate in surface layer.The general solubility of heavy metal is very little in addition, and character is stable, difficult to be removed, so its genotoxic potential is easy to accumulate in crop and the animal and the mankind.After on the soil is porous in rainfall larger area soil, using the excess sludge that is rich in N, P etc. in a large number, when the organic matter decomposition rate greater than plant during to the infiltration rate of N, P, nutrient such as N, P just might lose with current and enter the eutrophication that surface water body causes water body, enters the underground phreatic pollution that causes.
Along with social economy and fast development of urbanization, China's municipal sewage treatment ability constantly strengthens, and the surplus sludge volume of generation sharply increases.Dispose if excess sludge can not get appropriate processing, not only will take a large amount of soils, and will cause secondary pollution, become big public hazards that influence urban environmental hygiene environment.How science, appropriate processing excess sludge have become the key issue that urban development must solve.
Summary of the invention
The objective of the invention is to propose a kind of excess sludge method of disposal of high heating value.Reach with lower energy consumption that excess sludge is innoxious, the minimizing target, and can not produce secondary pollution.
The high heating value excess sludge method of disposal that proposes among the present invention is at the excess sludge of mummification dehydration back calorific value greater than 2000 kilocalories, carries out burning disposal after this class excess sludge mummification, does not need or only need add a small amount of combustion-supporting auxiliary material and just can keep burning.The heat that sludge incineration produces can use the thermal source as the excess sludge mummification again, has reduced the energy consumption of sludge drying.
Technical scheme of the present invention is: a kind of high heating value excess sludge method of disposal specifically may further comprise the steps:
1. the excess sludge that with pending moisture content is 80%-90% is sent into plate compression water machine, under the compaction pressure of 23MPa-45MPa, dewater, the filter-press dehydration sludge cake that obtains, moisture percentage in sewage sludge is reduced to 45%-55%, and the waste water of generation imports wastewater treatment equipment and handles;
2. the mud cake that above-mentioned steps is made is sent into the mud granulizing device, is broken into the coarse granule that particle diameter is about 3-5mm at normal temperatures, and is standby;
3. mud granule further mummification between the heat energy mummification, with the temperature of discharging in the sludge incinerator is that 300-600 ℃ high-temperature flue gas imports the used heat desiccation apparatus, utilize the entrained a large amount of heat energy of high-temperature flue gas that mud granule is carried out mummification, drying time is 2-10min, the mud granule moisture content is reduced to 20%-40% after the mummification, and the flue gas of discharge imports flue gas processing device and handles;
4. sending into mud through the mud granule after the mummification makes powder equipment and further handles, adopt air-flow high velocity impact technology, make with sludge dewatering that a large amount of natural airs of inspiration are medium in the powder equipment, from mud, dissociate a large amount of gaps water, appearance water, impel mud powder internal moisture to ooze out fast, handling back mud powder directly is 150 orders ~ 300 orders, and moisture content is 5%-15%;
5. sludge dry powder is stored in the sludge dry powder warehouse, mud powder footpath is little, calorific value does not need in the sludge incinerator or only needs small amount of fuel for the 2000-4000 kilocalorie sprays into is incendivity, and burning fully, interior temperature 800-1000 ℃ of incinerator, do not produce secondary pollution, the high-temperature flue gas that burns generation imports the used heat desiccation apparatus again mud is carried out mummification.
Beneficial effect of the present invention is: owing to adopt technique scheme, the high-temperature flue gas of a large amount of heat energy that carry that technology utilization sludge incineration of the present invention produces and the step that plate compression, mud granulizing, mud are made powder are reduced to very low degree with moisture percentage in sewage sludge, the burning disposal that helps mud, save the energy consumption of sludge drying simultaneously, the processing that excess sludge is appropriate is avoided environment is caused secondary pollution.
Description of drawings
Fig. 1 is a principle of the invention schematic diagram.
The specific embodiment
As shown in Figure 1, the excess sludge disposal plant that technical scheme the comprised combination that the present invention proposes, comprising: sheet frame dewaterer, mud granulizing device, used heat desiccation apparatus, mud are made powder device, sludge dry powder warehouse, sludge incinerator, wastewater treatment equipment, incineration flue gas treating apparatus.Technological process comprises:
The excess sludge of the about 80%-90% of moisture content is stored in the mud storage pool, enter by the mud conveyer and to carry out filter-press dehydration in the filter press and handle, free moisture in the mud is pushed out, make the half-driedization sludge cake of moisture content 45%-55%, the waste water of generation imports wastewater treatment equipment and handles.Half-driedization sludge cake enters the mud granulizing device by the mud cake conveyer, makes the mud granule of particle diameter 3-5mm, and mud granule has bigger specific area with respect to sludge cake, for next step heat energy mummification creates favorable conditions.Mud granule is further mummification between the heat energy mummification, the high-temperature flue gas that discharges in the sludge incinerator is imported the used heat desiccation apparatus, flue-gas temperature 300-600 ℃ even higher, utilize the entrained a large amount of heat energy of high-temperature flue gas that mud granule is carried out mummification, the mud granule moisture content is reduced to 20%-40% after the mummification, and the flue gas of discharge imports flue gas processing device and handles.Send into mud through the mud granule after the mummification and make powder equipment and handle, moisture percentage in sewage sludge further is reduced to 5%-15%.The sludge dry powder of making is stored in the sludge dry powder warehouse, finally enters sludge incinerator and burns, and the high-temperature flue gas that burns generation imports the used heat desiccation apparatus again mud is carried out mummification.
Embodiment 1:
The excess sludge moisture content 86.2% of certain sewage treatment plant is sent in the plate and frame filter press, and Hydraulic Station provides the compaction pressure of 25MPa for plate and frame filter press.Mud granule is trapped within and forms half-driedization sludge cake in the filter chamber, and filtrate is collected by gathering-device and is recycled to sewage disposal system.Resulting half-driedization sludge cake moisture content 50.7%.Half-driedization sludge cake is gone into the mud granulizing device by the mud cake conveyor delivery, the mud granule that the specific area of making is bigger, mud granule average grain diameter 3.3mm.Mud granule is further mummification between the heat energy mummification, and the flue-gas temperature that is used for mummification is 550 ℃, and the mud granule moisture content reduces to 30.5% after the mummification.Mud granule is sent into mud and is made powder equipment and handle afterwards, and the mud powder moisture content of making further is reduced to 14.2%.Finally, finally enter sludge incinerator and burn, the high-temperature flue gas that burns generation imports the used heat desiccation apparatus again mud is carried out mummification.The wastewater collection that produces in the whole disposal process is sent into wastewater treatment equipment and is handled, and the flue gas of discharge imports flue gas processing device and handles.
Embodiment 2:
The excess sludge moisture content 84.3% of certain sewage treatment plant is sent in the plate and frame filter press, and Hydraulic Station provides the compaction pressure of 28MPa for plate and frame filter press.Mud granule is trapped within and forms half-driedization sludge cake in the filter chamber, and filtrate is collected by gathering-device and is recycled to sewage disposal system.Resulting half-driedization sludge cake moisture content 56.9%.Half-driedization sludge cake is gone into the mud granulizing device by the mud cake conveyor delivery, the mud granule that the specific area of making is bigger, mud granule average grain diameter 4.3mm.Mud granule is further mummification between the heat energy mummification, and the flue-gas temperature that is used for mummification is 465 ℃, and the mud granule moisture content reduces to 30.5% after the mummification.Mud granule is sent into mud and is made powder equipment and handle afterwards, and the mud powder moisture content of making further is reduced to 8.8%.Finally, finally enter sludge incinerator and burn, the high-temperature flue gas that burns generation imports the used heat desiccation apparatus again mud is carried out mummification.The wastewater collection that produces in the whole disposal process is sent into wastewater treatment equipment and is handled, and the flue gas of discharge imports flue gas processing device and handles.
Embodiment 3:
The excess sludge moisture content 80.6% of certain sewage treatment plant is sent in the plate and frame filter press, and Hydraulic Station provides the compaction pressure of 45MPa for plate and frame filter press.Mud granule is trapped within and forms half-driedization sludge cake in the filter chamber, and filtrate is collected by gathering-device and is recycled to sewage disposal system.Resulting half-driedization sludge cake moisture content 45.4%.Half-driedization sludge cake is gone into the mud granulizing device by the mud cake conveyor delivery, the mud granule that the specific area of making is bigger, mud granule average grain diameter 4.1mm.Mud granule is further mummification between the heat energy mummification, and the flue-gas temperature that is used for mummification is 600 ℃, and the mud granule moisture content reduces to 26.2% after the mummification.Mud granule is sent into mud and is made powder equipment and handle afterwards, and the mud powder moisture content of making further is reduced to 5.7%.Finally, finally enter sludge incinerator and burn, the high-temperature flue gas that burns generation imports the used heat desiccation apparatus again mud is carried out mummification.The wastewater collection that produces in the whole disposal process is sent into wastewater treatment equipment and is handled, and the flue gas of discharge imports flue gas processing device and handles.
Claims (1)
1. a high heating value excess sludge method of disposal is characterized in that, specifically comprises the following steps:
With pending moisture content is that the excess sludge of 80%-90% is sent into plate compression water machine, under the compaction pressure of 23MPa-45MPa, dewater, and the filter-press dehydration sludge cake that obtains, moisture percentage in sewage sludge is reduced to 45%-55%, and the waste water of generation imports wastewater treatment equipment and handles;
The mud cake that above-mentioned steps makes is sent into the mud granulizing device, be broken into the coarse granule that particle diameter is about 3-5mm at normal temperatures, standby;
Mud granule is further mummification between the heat energy mummification, with the temperature of discharging in the sludge incinerator is that 300-600 ℃ high-temperature flue gas imports the used heat desiccation apparatus, utilize the entrained a large amount of heat energy of high-temperature flue gas that mud granule is carried out mummification, drying time is 2-10min, the mud granule moisture content is reduced to 20%-40% after the mummification, and the flue gas of discharge imports flue gas processing device and handles;
Sending into mud through the mud granule after the mummification makes powder equipment and further handles, adopt air-flow high velocity impact technology, make with sludge dewatering that a large amount of natural airs of inspiration are medium in the powder equipment, from mud, dissociate a large amount of gaps water, appearance water, impel mud powder internal moisture to ooze out fast, handling back mud powder directly is 150 orders ~ 300 orders, and moisture content is 5%-15%;
Sludge dry powder is stored in the sludge dry powder warehouse, mud powder footpath is little, calorific value does not need in the sludge incinerator or only needs small amount of fuel for the 2000-4000 kilocalorie sprays into is incendivity, and burning fully, interior temperature 800-1000 ℃ of incinerator, do not produce secondary pollution, the high-temperature flue gas that burns generation imports the used heat desiccation apparatus again mud is carried out mummification.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110057325XA CN102183027B (en) | 2011-03-10 | 2011-03-10 | Treatment method of high calorific value excess sludge |
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| CN201110057325XA CN102183027B (en) | 2011-03-10 | 2011-03-10 | Treatment method of high calorific value excess sludge |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102559327A (en) * | 2011-12-16 | 2012-07-11 | 苏韶华 | Sludge synthetic fuel |
| CN102927574A (en) * | 2012-11-16 | 2013-02-13 | 富阳春江污水回用处理有限公司 | Efficient and energy-saving type continuously-mechanized papermaking sludge incineration processing method |
| CN102964041A (en) * | 2012-12-03 | 2013-03-13 | 厦门荣惠盛新材料有限公司 | Sludge burning treatment device and burning treatment method using device |
| CN103374418A (en) * | 2012-04-27 | 2013-10-30 | 王庆 | Entrained-flow bed gasification method of sludge and pulverized coal |
| CN103693823A (en) * | 2012-09-28 | 2014-04-02 | 中国石油天然气股份有限公司 | Harmless treatment method for oily sludge |
| CN105800892A (en) * | 2016-05-13 | 2016-07-27 | 安徽金农惠民生物技术有限公司 | Blue-green algae and excess sludge resourceful treatment method |
| CN106396335A (en) * | 2016-11-28 | 2017-02-15 | 中冶华天工程技术有限公司 | Solar thermal drying and sintering combined municipal sludge disposal system |
| CN106915888A (en) * | 2017-04-01 | 2017-07-04 | 广东焕杰环保科技有限公司 | A kind of sludge treating system and its processing method |
| CN107366913A (en) * | 2017-07-07 | 2017-11-21 | 南京福昌环保有限公司 | A kind of compatibility processing method based on incineration of waste |
| CN108692317A (en) * | 2018-07-09 | 2018-10-23 | 天津壹新环保工程有限公司 | Sludge incineration treatment method and device |
| CN109796119A (en) * | 2018-05-09 | 2019-05-24 | 成都元泽环境技术有限公司 | A kind of smoke backflow sludge dewatering technology |
| CN109928597A (en) * | 2019-03-28 | 2019-06-25 | 北京科技大学 | Excess sludge depth drying equipment system and method |
| CN109956642A (en) * | 2017-12-23 | 2019-07-02 | 安徽睿知信信息科技有限公司 | The processing method of activated sludge in a kind of sewage |
| CN110183076A (en) * | 2019-07-09 | 2019-08-30 | 孟龙 | The dehydration of electro-osmosis sludge high-drying and granulation pyrolytic gasification process and equipment |
| CN111156529A (en) * | 2019-12-30 | 2020-05-15 | 李泽明 | Method and system for preparing fuel incineration hazardous waste from domestic sludge |
| CN113429105A (en) * | 2021-05-31 | 2021-09-24 | 广州市土木金建筑工程有限公司 | Sludge constant-temperature drying harmless treatment method |
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102559327A (en) * | 2011-12-16 | 2012-07-11 | 苏韶华 | Sludge synthetic fuel |
| CN102559327B (en) * | 2011-12-16 | 2013-09-25 | 苏韶华 | Sludge synthetic fuel |
| CN103374418A (en) * | 2012-04-27 | 2013-10-30 | 王庆 | Entrained-flow bed gasification method of sludge and pulverized coal |
| CN103374418B (en) * | 2012-04-27 | 2017-05-17 | 任相坤 | Entrained-flow bed gasification method of sludge and pulverized coal |
| CN103693823A (en) * | 2012-09-28 | 2014-04-02 | 中国石油天然气股份有限公司 | Harmless treatment method for oily sludge |
| CN103693823B (en) * | 2012-09-28 | 2015-08-19 | 中国石油天然气股份有限公司 | Harmless treatment method for oily sludge |
| CN102927574B (en) * | 2012-11-16 | 2015-03-04 | 富阳春江污水回用处理有限公司 | Continuously-mechanized papermaking sludge incineration processing method |
| CN102927574A (en) * | 2012-11-16 | 2013-02-13 | 富阳春江污水回用处理有限公司 | Efficient and energy-saving type continuously-mechanized papermaking sludge incineration processing method |
| CN102964041A (en) * | 2012-12-03 | 2013-03-13 | 厦门荣惠盛新材料有限公司 | Sludge burning treatment device and burning treatment method using device |
| CN105800892A (en) * | 2016-05-13 | 2016-07-27 | 安徽金农惠民生物技术有限公司 | Blue-green algae and excess sludge resourceful treatment method |
| CN106396335A (en) * | 2016-11-28 | 2017-02-15 | 中冶华天工程技术有限公司 | Solar thermal drying and sintering combined municipal sludge disposal system |
| CN106915888A (en) * | 2017-04-01 | 2017-07-04 | 广东焕杰环保科技有限公司 | A kind of sludge treating system and its processing method |
| CN106915888B (en) * | 2017-04-01 | 2020-08-07 | 广东焕杰环保科技有限公司 | Sludge treatment system |
| CN107366913A (en) * | 2017-07-07 | 2017-11-21 | 南京福昌环保有限公司 | A kind of compatibility processing method based on incineration of waste |
| CN109956642A (en) * | 2017-12-23 | 2019-07-02 | 安徽睿知信信息科技有限公司 | The processing method of activated sludge in a kind of sewage |
| CN109796119A (en) * | 2018-05-09 | 2019-05-24 | 成都元泽环境技术有限公司 | A kind of smoke backflow sludge dewatering technology |
| CN108692317A (en) * | 2018-07-09 | 2018-10-23 | 天津壹新环保工程有限公司 | Sludge incineration treatment method and device |
| CN108692317B (en) * | 2018-07-09 | 2024-05-17 | 天津壹新环保工程有限公司 | Sludge incineration treatment method and device |
| CN109928597A (en) * | 2019-03-28 | 2019-06-25 | 北京科技大学 | Excess sludge depth drying equipment system and method |
| CN110183076A (en) * | 2019-07-09 | 2019-08-30 | 孟龙 | The dehydration of electro-osmosis sludge high-drying and granulation pyrolytic gasification process and equipment |
| CN111156529A (en) * | 2019-12-30 | 2020-05-15 | 李泽明 | Method and system for preparing fuel incineration hazardous waste from domestic sludge |
| CN113429105A (en) * | 2021-05-31 | 2021-09-24 | 广州市土木金建筑工程有限公司 | Sludge constant-temperature drying harmless treatment method |
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