CN104073312A - Composite sludge coal and preparation method thereof as well as fuel - Google Patents
Composite sludge coal and preparation method thereof as well as fuel Download PDFInfo
- Publication number
- CN104073312A CN104073312A CN201310108999.7A CN201310108999A CN104073312A CN 104073312 A CN104073312 A CN 104073312A CN 201310108999 A CN201310108999 A CN 201310108999A CN 104073312 A CN104073312 A CN 104073312A
- Authority
- CN
- China
- Prior art keywords
- coal
- weight
- content
- mud
- sludge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention discloses a composite sludge coal and a preparation method thereof as well as a fuel. The composite sludge coal contains sludge and pulverized coal. The sludge is prepared into the composite sludge coal, and the composite sludge coal is prepared into the fuel, therefore, the heat contained in organic matters in the sludge is utilized sufficiently and the after-treatment problem of the sludge is solved.
Description
Technical field
The present invention relates to a kind of composite sludge coal and preparation method thereof and a kind of fuel.
Background technology
At present, the mud that the biological sludge that sewage disposal produces, chemical engineering sludge (" three mud " producing in petrochemical industry oily(waste)water treating processes (being oil trap bed mud, flotation cell scum silica frost and biochemistry pool residual active sludge)) and oil refining produce, the greasy filth and the clear tank greasy filth that as oil trap, produce must carry out subsequent disposal usually used as high-risk refuse, thereby the quantity discharged that reduces mud is to prevent that generation is polluted to environment.But, above-mentioned mud is carried out to the somewhat expensive of subsequent disposal, and if process improperly, be easy to cause the secondary pollution to environment.
Summary of the invention
The aftertreatment that the object of the invention is to overcome the mud of prior art easily causes the secondary pollution of environment, and the problem that processing costs is high and provide a kind of and can effectively utilize and composite sludge coal of obtaining and preparation method thereof and a kind of fuel mud, the present invention is by being prepared into mud in composite sludge coal, and described composite sludge coal fuel made is made full use of the contained calorific value of the organism in mud, thereby solved the aftertreatment problem of mud.
To achieve these goals, the invention provides a kind of composite sludge coal, wherein, described composite sludge coal contains mud and coal dust.
The present invention also provides a kind of production method of composite sludge coal, and wherein, the method comprises mud and coal dust are mixed.
The present invention also provides a kind of fuel, and described fuel contains refinery coke, and wherein, described fuel also contains composite sludge coal of the present invention.
Under preferable case; in order further to reduce the activation energy of oxidation of coal reaction; improve the oxidation rate of coal; coal is fully burnt; and the objectionable impurities of discharge is become to innoxious substance by chemical reaction; reach the object of environment protection; the gross weight of described composite sludge coal of take is benchmark; the content of described mud is 1-10 % by weight; the content of described coal dust is 90-99 % by weight, and more preferably, the gross weight of described composite sludge coal of take is benchmark; the content of described mud is 2-8 % by weight, and the content of described coal dust is 92-98 % by weight.
Under preferable case, composite sludge coal of the present invention also contains the additive that can promote coal combustion, further to improve the oxidation rate of coal, coal is fully burnt.
The present invention is by mud being made to composite sludge coal, and composite sludge coal fuel made thoroughly solved to the problem of outlet of mud, realized the object that solid waste is not dispatched from the factory, do not shifted, and greatly reduced useless the using of aftertreatment of mud.
Other features and advantages of the present invention partly in detail are described the embodiment subsequently.
Embodiment
Below the specific embodiment of the present invention is elaborated.Should be understood that, embodiment described herein only, for description and interpretation the present invention, is not limited to the present invention.
According to the present invention, described composite sludge coal contains mud and coal dust.
Although as long as contain mud and coal dust in described composite sludge coal, but in order further to reduce the activation energy of oxidation of coal reaction, improve the oxidation rate of coal, coal is fully burnt, and the objectionable impurities of discharge is become to innoxious substance by chemical reaction, reach the object of environment protection, under preferable case, the gross weight of described composite sludge coal of take is benchmark, the content of described mud is 1-10 % by weight, the content of described coal dust is 90-99 % by weight, under preferable case, the gross weight of described composite sludge coal of take is benchmark, the content of described mud is 2-8 % by weight, the content of described coal dust is 92-98 % by weight.
According to the present invention, can promote the additive of coal combustion can play by the effects such as exchange between catalysis, oxidation, metal ion, reduce the activation energy of oxidation of coal reaction, improve the oxidation rate of coal, coal is fully burnt, therefore,, under preferable case, composite sludge coal of the present invention also contains the additive that can promote coal combustion.As long as the kind of described additive can realize above-mentioned effect, for example, can be selected from one or more in humic acids and xylogen.In order to be more convenient to burning, described additive is preferably paste or powder, and the particle diameter of powder is generally 5-10 millimeter.
Under preferable case, the gross weight of described composite sludge coal of take is benchmark, the content of described mud is 1-10 % by weight, the content of described coal dust is 89.9-98.9 % by weight, and the content of described additive is 0.1-1 % by weight, further under preferable case, the gross weight of described composite sludge coal of take is benchmark, the content of described mud is 2-8 % by weight, and the content of described coal dust is 91.5-97.5 % by weight, and the content of described additive is 0.3-0.8 % by weight.
According to the present invention, in order to make described composite sludge coal more be easy to burning, under preferable case, the water ratio of described mud is less than 40 % by weight, is more preferably less than 20 % by weight.The method that makes the water ratio of described mud reach the preferred water content requirement of the present invention sludge dewatering is conventionally known to one of skill in the art, in addition, those skilled in the art can select suitable dewatering according to the kind of mud, for example, press filtration, the method such as centrifugal, dry, described press filtration, centrifugal and dry method can be the whole bag of tricks of this area routine, for example, described press filtration can adopt vacuum filter, filter-press, vacuum-type drum filter, roll extrusion band filter etc. to carry out; Described being dried can adopt the methods such as vacuum-drying, seasoning, forced air drying, oven dry, described press filtration, centrifugal or dry temperature can be 30-50 ℃, press filtration, centrifugal or dry time determine according to moisture percentage in sewage sludge, as long as make it preferably meet the water content requirement of mud.
According to the present invention, in described composite sludge coal, mud used can be various mud known in those skilled in the art, for example, can be selected from one or more in biological sludge, chemical engineering sludge and the refinery sludge that sewage disposal produces.Wherein, described biological sludge refers to the mixture that contains organic suspended solid and water producing in sewage treatment process, generally includes Sludge from primary sedimentation tank (higher from preliminary sedimentation tank inorganic content), humus sludge (mud of processing from biomembrance process), excess sludge (processing the mud that second pond is discharged from Mars mud method), digested sludge (the mud mature sludge after anaerobic treatment is again discharged in biochemical treatment), chemical sludge (mud that coagulation, air supporting, chemical precipitation produce); Described chemical engineering sludge refers to " three mud " (being oil trap bed mud, flotation cell scum silica frost and biochemistry pool residual active sludge) producing in petrochemical industry oily(waste)water treating processes; Described refinery sludge refers to the mud of the Sewage treatment systems generation of petrochemical enterprise, mainly, from bed mud, flotation cell scum silica frost, the residual active sludge of oil trap, is referred to as " three mud ".
According to the present invention, described coal dust can be selected from the various coal dusts that can be used in burning, for example, can be bituminous coal.In order to be more convenient to burning, the particle diameter of described coal dust is preferably less than 30 millimeters, more preferably 10-20 millimeter.
According to the present invention, the production method of described composite sludge coal comprises mud and coal dust is mixed.
Although as long as mud and coal dust are mixed, but, under preferable case, it is benchmark that the consumption of each material makes to take the gross weight of composite sludge coal, and the content of mud is 1-10 % by weight, and the content of coal dust is 90-99 % by weight, more preferably, it is benchmark that the consumption of each material makes to take the gross weight of composite sludge coal, and the content of mud is 2-8 % by weight, and the content of coal dust is 92-98 % by weight.
According to the present invention, preferably, the method also comprises mud, coal dust mixes with promoting the additive of coal combustion, by promoting play by catalysis the adding of additive of coal combustion, oxidation, the effects such as the exchange between metal ion, reduce the activation energy of oxidation of coal reaction, improve the oxidation rate of coal, make the clean-burning effect of coal, it is benchmark that the consumption of each material makes to take the gross weight of composite sludge coal, the content of mud is 1-10 % by weight, the content of coal dust is 89.9-98.9 % by weight, the content of additive is 0.1-1 % by weight, more preferably, it is benchmark that the consumption of each material makes to take the gross weight of composite sludge coal, the content of mud is 2-8 % by weight, the content of coal dust is 91.5-97.5 % by weight, the content of additive is 0.3-0.8 % by weight.
Wherein, before the method is also included in mud and coal dust or mud, coal dust are mixed with additive, by sludge dewatering, make the water ratio of described mud be less than 40 % by weight, be more preferably less than 20 % by weight.
Wherein, the kind of the kind of the method for described sludge dewatering, mud and described coal dust, particle diameter size and the kind of described additive and the selection of particle diameter size are described in detail hereinbefore, do not repeated them here.
Described fuel provided by the invention contains refinery coke, and wherein, described fuel also contains composite sludge coal provided by the invention.By described composite sludge coal fuel made, not only can provide certain calorific value, and, objectionable constituent in mud in composite sludge coal in described fuel can fully be burnt, reach atmospheric emission standard, realize the innoxious comprehensive utilization of harmful mud, realize the recycle of refining and petrochemical processing units, guarantee the object that solid waste does not dispatch from the factory, do not shift.Being widely used of described fuel, for example, can be for the burning of circular fluid bed.
According to the present invention, although as long as contain composite sludge coal of the present invention in described fuel, but, under preferable case, in order to make composite sludge coal, be fully used, and can meet certain calorific value requirement, the gross weight of described fuel of take is benchmark, the content of described refinery coke is not less than 60 % by weight, in order to make full use of described composite sludge coal, the content of described composite sludge coal is not less than 5 % by weight, more preferably, the gross weight of described fuel of take is benchmark, the content of described refinery coke is 60-90 % by weight, the content of described composite sludge coal is 10-40 % by weight, further preferably, the content of described refinery coke is 65-75 % by weight, and the content of described composite sludge coal is 25-35 % by weight.In addition,, in order to improve the calorific value of fuel, in described fuel, can also contain coal, the adjustable extent of the content of coal is wider, for example, at the content of refinery coke, be not less than under the prerequisite of fuel gross weight 60 % by weight, the weight ratio of coal and composite sludge coal of the present invention can be 0.1-7:1.The selectable range of the coal in described fuel and the kind of refinery coke is wider, and wherein, described coal can be bituminous coal; Described refinery coke can be selected from one or more in oil refining coke chemicals.
Generally, for the ease of the burning of fuel, preferably the fuel making being crushed to particle diameter is 1-50mm, preferably 5-30mm.
More than describe the preferred embodiment of the present invention in detail; but the present invention is not limited to the detail in above-mentioned embodiment, within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characterictic described in above-mentioned embodiment, in reconcilable situation, can combine by any suitable mode, for fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible array modes.
In addition, between various embodiment of the present invention, also can carry out arbitrary combination, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Below will describe the present invention by embodiment.
In following examples, chemical engineering sludge comprises two portions: Yi Shi Yanshan Petrochemical company West refining sewage treatment device Hazardous wastes, the mud that a part of water treatment produces in addition comes from workshop, Niu Kou valley oxidation ditch.Described coal dust is that the particle diameter by coal (purchased from the bituminous coal of Datong Coal Group Company) is obtained through pulverizing is the coal dust of 10-20 millimeter.Described refinery coke is purchased from Yanshan Petrochemical company.
In embodiment 4, the additive that can promote coal combustion used is humic acids, and purchased from Lvliang City grand Biological Development company limited, in embodiment 5, the additive that can promote coal combustion used is xylogen, purchased from Langfang Sheng Xianglong energy-saving material company limited.
Embodiment 1
The present embodiment is for illustrating the preparation of composite sludge coal and the preparation of fuel.
At 40 ℃, mud is dried 5 hours, obtain the dewatered sludge that water ratio is 30 % by weight.
By above-mentioned, through mud and the coal dust of drying, mix, obtain composite sludge coal, the gross weight of described composite sludge coal of take is benchmark, and the content of described mud is 8 % by weight, and the content of described coal dust is 92 % by weight.
Above-mentioned composite sludge coal and refinery coke are mixed, and be crushed to 30 millimeters, obtain fuel, the gross weight of described fuel of take is benchmark, and the content of described composite sludge coal is 35 % by weight, and the content of described refinery coke is 65 % by weight.
Embodiment 2
The present embodiment is for illustrating the preparation of composite sludge coal and the preparation of fuel.
At 40 ℃, mud is dried 5 hours, obtain the dewatered sludge that water ratio is 30 % by weight.
By above-mentioned, through mud and the coal dust of drying, mix, obtain composite sludge coal, the gross weight of described composite sludge coal of take is benchmark, and the content of described mud is 2 % by weight, and the content of described coal dust is 98 % by weight.
Above-mentioned composite sludge coal, coal and refinery coke are mixed, and be crushed to and be less than 30 millimeters, obtain fuel, the gross weight of described fuel of take is benchmark, and the content of described composite sludge coal is 30 % by weight, and the content of described refinery coke is 70 % by weight.
Embodiment 3
The present embodiment is for illustrating the preparation of composite sludge coal and the preparation of fuel.
At 40 ℃, mud is dried 5 hours, obtain the dewatered sludge that water ratio is 30 % by weight.
By above-mentioned, through mud and the coal dust of drying, mix, obtain composite sludge coal, the gross weight of described composite sludge coal of take is benchmark, and the content of described mud is 5 % by weight, and the content of described coal dust is 95 % by weight.
Above-mentioned composite sludge coal, coal and refinery coke are mixed, and be crushed to 20 millimeters, obtain fuel, the gross weight of described fuel of take is benchmark, and the content of described composite sludge coal is 25 % by weight, and the content of described refinery coke is 75 % by weight.
Embodiment 4
The present embodiment is for the preparation of composite sludge coal and the preparation of fuel.
At 40 ℃, mud is dried 5 hours, obtain the dewatered sludge that water ratio is 30 % by weight.
By above-mentioned, through mud, coal dust and the additive humic acids of drying, mix, obtain composite sludge coal, the gross weight of described composite sludge coal of take is benchmark, and the content of described mud is 1.2 % by weight, the content of described coal dust is 98 % by weight, and the content of described additive is 0.8 % by weight.
Above-mentioned composite sludge coal, coal and refinery coke are mixed, and be crushed to 30 millimeters, obtain fuel, the gross weight of described fuel of take is benchmark, the content of described composite sludge coal is 10 % by weight, and the content of described coal is 15 % by weight, and the content of described refinery coke is 75 % by weight.
Embodiment 5
The present embodiment is for the preparation of composite sludge coal and the preparation of fuel.
At 40 ℃, mud is dried 5 hours, obtain the dewatered sludge that water ratio is 30 % by weight.
By above-mentioned, through mud, coal dust and the additive xylogen of drying, mix, obtain composite sludge coal, the gross weight of described composite sludge coal of take is benchmark, and the content of described mud is 8 % by weight, the content of described coal dust is 91.7 % by weight, and the content 0.3 of described additive is % by weight.
Above-mentioned composite sludge coal and refinery coke are mixed, and be crushed to 30 millimeters, obtain fuel, the gross weight of described fuel of take is benchmark, and the content of described composite sludge coal is 35 % by weight, and the content of described refinery coke is 65 % by weight.
Embodiment 6-10
The present embodiment is for illustrating the performance test of composite sludge coal and fuel.
The fuel that following embodiment explanation makes embodiment 1-5 carries out the test of combustionproperty.
Net calorific value is measured by the heat output determining method of GB/T213 coal, and ash content, volatile matter are measured by the Industry Analysis Method of GB/T212 coal, and sulphur content is measured by the Industry Analysis Method of GB/T214 coal.
Table 1
Data from upper table 1, the combustionproperty of the fuel being prepared by composite sludge coal of the present invention is good, by described composite sludge coal fuel made is made full use of the contained calorific value of the organism in mud, and solved the aftertreatment problem of mud.
Claims (12)
1. a composite sludge coal, is characterized in that, described composite sludge coal contains mud and coal dust.
2. composite sludge coal according to claim 1, wherein, the gross weight of described composite sludge coal of take is benchmark, the content of described mud is 1-10 % by weight, the content of described coal dust is 90-99 % by weight, and preferably, the gross weight of described composite sludge coal of take is benchmark, the content of described mud is 2-8 % by weight, and the content of described coal dust is 92-98 % by weight.
3. composite sludge coal according to claim 1, wherein, described composite sludge coal also contains the additive that can promote coal combustion.
4. composite sludge coal according to claim 3, wherein, the gross weight of described composite sludge coal of take is benchmark, and the content of described mud is 1-10 % by weight, and the content of described coal dust is 89.9-98.9 % by weight, the content of described additive is 0.1-1 % by weight, preferably, the gross weight of described composite sludge coal of take is benchmark, and the content of described mud is 2-8 % by weight, the content of described coal dust is 91.5-97.5 % by weight, and the content of described additive is 0.3-0.8 % by weight.
5. according to the composite sludge coal described in claim 3 or 4, wherein, described additive is selected from one or more in humic acids and xylogen.
6. according to the composite sludge coal described in any one in claim 1-4, wherein, described mud is selected from one or more in biological sludge, chemical engineering sludge and the refinery sludge that sewage disposal produces, and preferably, the water ratio of described mud is less than 40 % by weight.
7. according to the composite sludge coal described in any one in claim 1-4, wherein, the particle diameter of described coal dust is less than 30 millimeters, and described coal dust is bituminous coal.
8. the production method of composite sludge coal described in claim 1, is characterized in that, the method comprises mud and coal dust are mixed.
9. method according to claim 8, wherein, it is benchmark that the consumption of each material makes to take the gross weight of composite sludge coal, the content of mud is 1-10 % by weight, the content of coal dust is 90-99 % by weight, and preferably, it is benchmark that the consumption of each material makes to take the gross weight of composite sludge coal, the content of mud is 2-8 % by weight, and the content of coal dust is 92-98 % by weight.
10. method according to claim 8, wherein, the method also comprises mud, coal dust and can promote the additive of coal combustion to mix, it is benchmark that the consumption of each material makes to take the gross weight of composite sludge coal, the content of mud is 1-10 % by weight, the content of coal dust is 89.9-98.9 % by weight, the content of additive is 0.1-1 % by weight, preferably, it is benchmark that the consumption of each material makes to take the gross weight of composite sludge coal, the content of mud is 2-8 % by weight, and the content of coal dust is 91.5-97.5 % by weight, and the content of additive is 0.3-0.8 % by weight.
Method in 11. according to Claim 8-10 described in any one, wherein, before the method is also included in mud and coal dust or mud, coal dust is mixed with additive by sludge dewatering, make the water ratio of described mud be less than 40 % by weight, described mud is selected from one or more in biological sludge, chemical engineering sludge and the refinery sludge that sewage disposal produces; The particle diameter of described coal dust is less than 30 millimeters, and described coal dust is bituminous coal; Described additive is selected from one or more in humic acids and xylogen.
12. 1 kinds of fuel, described fuel contains refinery coke, it is characterized in that, and described fuel also contains the composite sludge coal described in any one in claim 1-7 or the method described in any one prepares in claim 8-11 composite sludge coal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310108999.7A CN104073312A (en) | 2013-03-29 | 2013-03-29 | Composite sludge coal and preparation method thereof as well as fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310108999.7A CN104073312A (en) | 2013-03-29 | 2013-03-29 | Composite sludge coal and preparation method thereof as well as fuel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104073312A true CN104073312A (en) | 2014-10-01 |
Family
ID=51594924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310108999.7A Pending CN104073312A (en) | 2013-03-29 | 2013-03-29 | Composite sludge coal and preparation method thereof as well as fuel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104073312A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106367152A (en) * | 2016-11-22 | 2017-02-01 | 山东科技大学 | Environmental protection type coal produced from sludge and fatlute and manufacturing method thereof |
| CN109385321A (en) * | 2018-12-07 | 2019-02-26 | 马钢集团设计研究院有限责任公司 | A kind of waste emulsified mixture oil-sludge treatment method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59170197A (en) * | 1983-03-18 | 1984-09-26 | Hitachi Plant Eng & Constr Co Ltd | Synthetic sludge fuel and its preparation |
| CN1282781A (en) * | 1999-07-29 | 2001-02-07 | 中国科学院广州能源研究所 | Process for preparing briquettes with sludge |
| CN1680518A (en) * | 2004-04-09 | 2005-10-12 | 上海精微粉溶机械设备有限公司 | Extra fine mud fuel and production thereof |
| CN101191089A (en) * | 2006-11-22 | 2008-06-04 | 张大伟 | Sludge and coal mixing fuel and using method thereof |
| CN101712899A (en) * | 2009-11-24 | 2010-05-26 | 姜冬至 | Environment-friendly sludge briquette |
| CN102041126A (en) * | 2009-10-19 | 2011-05-04 | 韩京龙 | Sludge biofuel and preparation method thereof |
-
2013
- 2013-03-29 CN CN201310108999.7A patent/CN104073312A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59170197A (en) * | 1983-03-18 | 1984-09-26 | Hitachi Plant Eng & Constr Co Ltd | Synthetic sludge fuel and its preparation |
| CN1282781A (en) * | 1999-07-29 | 2001-02-07 | 中国科学院广州能源研究所 | Process for preparing briquettes with sludge |
| CN1680518A (en) * | 2004-04-09 | 2005-10-12 | 上海精微粉溶机械设备有限公司 | Extra fine mud fuel and production thereof |
| CN101191089A (en) * | 2006-11-22 | 2008-06-04 | 张大伟 | Sludge and coal mixing fuel and using method thereof |
| CN102041126A (en) * | 2009-10-19 | 2011-05-04 | 韩京龙 | Sludge biofuel and preparation method thereof |
| CN101712899A (en) * | 2009-11-24 | 2010-05-26 | 姜冬至 | Environment-friendly sludge briquette |
Non-Patent Citations (2)
| Title |
|---|
| 李彦林等: "炼化"三泥"在煤粉锅炉掺烧技术的应用研究", 《石油学报（石油加工）》 * |
| 楼波等: "煤粉炉内掺混废水污泥燃烧的数值模拟与分析", 《华南理工大学学报（自然科学版）》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106367152A (en) * | 2016-11-22 | 2017-02-01 | 山东科技大学 | Environmental protection type coal produced from sludge and fatlute and manufacturing method thereof |
| CN109385321A (en) * | 2018-12-07 | 2019-02-26 | 马钢集团设计研究院有限责任公司 | A kind of waste emulsified mixture oil-sludge treatment method |
| CN109385321B (en) * | 2018-12-07 | 2020-05-08 | 马钢集团设计研究院有限责任公司 | Method for treating waste emulsion oil sludge |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101823825B (en) | Sludge dehydrating and drying process method and device | |
| CN102875003B (en) | Integrated technology of thermal decomposing, dry distilling and gasifying sludge and preparing of ceramsite | |
| CN103359898B (en) | Method and apparatus for sludge deep treatment and resource utilization | |
| CN102432007A (en) | Method for preparing activated carbon by physical activation of excess sludge | |
| CN101993181B (en) | Method for dehydration and recycling of continuous dyeing sludge | |
| CN101962590B (en) | Regenerative coal produced by multiple kinds of oily sludge in oil refinery and preparation method thereof | |
| CN102161562B (en) | Process for treating excess sludge by utilizing fly ash | |
| CN102765866B (en) | Method for recycling urban sludge | |
| CN102070352A (en) | Method for recycling dewatered sludge, channel sediment and fly ash | |
| CN203513455U (en) | Sludge drying and incineration system | |
| CN103756697A (en) | Method and system for processing waste and sludge | |
| CN105733734A (en) | Method and device for preparing fuel by means of mixing coke powder with sludge from sewage plants | |
| CN102533381A (en) | Method for preparing fuel by using sludge | |
| CN105402740A (en) | Sludge high-pressure drying and incineration treatment system | |
| CN103524008B (en) | Automatic processing handling process for zero discharge of sludge for urban sewage plant | |
| CN210176701U (en) | System for municipal sludge deep reduction treatment | |
| CN101007975A (en) | Method for preparing clean coal from sludge | |
| CN101643305B (en) | Method for integrating sludge drying by using brickkiln fume afterheat and brick making by using sludge | |
| CN103013613B (en) | Clean fuelization system and fuelization method for urban sludge | |
| CN102701711A (en) | Sintered brick and manufacturing method thereof | |
| CN109264942A (en) | The low increasing of sludge is than solid biologic environment-friendlyconditioner conditioner | |
| CN211078842U (en) | Sludge recycling treatment system | |
| CN105417784A (en) | Method for curing solidification treatment of heavy metal-containing sour water | |
| CN104073312A (en) | Composite sludge coal and preparation method thereof as well as fuel | |
| CN102775034A (en) | Sludge incineration treatment method and sludge incineration treatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141001 |
|
| RJ01 | Rejection of invention patent application after publication |