CN101148346A - A method for preparing ceramsite from urban sewage plant sludge - Google Patents
A method for preparing ceramsite from urban sewage plant sludge Download PDFInfo
- Publication number
- CN101148346A CN101148346A CNA2007100171274A CN200710017127A CN101148346A CN 101148346 A CN101148346 A CN 101148346A CN A2007100171274 A CNA2007100171274 A CN A2007100171274A CN 200710017127 A CN200710017127 A CN 200710017127A CN 101148346 A CN101148346 A CN 101148346A
- Authority
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- China
- Prior art keywords
- less
- ceramsite
- urban sewage
- clay
- 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.)
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Links
- 239000010802 sludge Substances 0.000 title claims abstract description 18
- 239000010865 sewage Substances 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 15
- 239000004927 clay Substances 0.000 claims abstract description 10
- 239000010881 fly ash Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000010792 warming Methods 0.000 claims description 6
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 4
- 238000005485 electric heating Methods 0.000 claims description 3
- 238000010298 pulverizing process Methods 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 239000010841 municipal wastewater Substances 0.000 claims description 2
- 238000004065 wastewater treatment Methods 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract description 3
- 238000005272 metallurgy Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 2
- 239000003208 petroleum Substances 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010454 slate Substances 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Landscapes
- Treatment Of Sludge (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
本发明公开了一种以城市污水厂脱水污泥、粉煤灰、粘土为原料制备的陶粒及其制备方法，属环境技术领域。以城市污水厂脱水污泥、粉煤灰、粘土为原料，按比例混合，逐步升温烧结即制得陶粒。该陶粒为黄色或褐色的球状固体，松散容重为650－750kg/m3，颗粒容重为1050－1150kg/m3，吸水率为5.80－10.8％，比表面积为2.29－5.56m2/g。本发明方法具有工艺简捷、成本低、经济适用等优点，制得的陶粒具有具有轻质、高强、吸水率小比表面积大等特点，在建筑、环保、冶金、化工、石油、农业等部门具有广泛的用途。The invention discloses a ceramsite prepared by using dewatered sludge of urban sewage plant, fly ash and clay as raw materials and a preparation method thereof, belonging to the technical field of environment. The dewatered sludge, fly ash, and clay from urban sewage plants are used as raw materials, mixed in proportion, gradually heated and sintered to produce ceramsite. The ceramsite is a yellow or brown spherical solid, with a loose bulk density of 650-750kg/m 3 , a particle bulk density of 1050-1150kg/m 3 , a water absorption rate of 5.80-10.8%, and a specific surface area of 2.29-5.56m 2 /g. The method of the present invention has the advantages of simple process, low cost, economical applicability, etc. The prepared ceramsite has the characteristics of light weight, high strength, small water absorption rate and large specific surface area, and is widely used in construction, environmental protection, metallurgy, chemical industry, petroleum, agriculture and other departments. Has a wide range of uses.
Description
(1) technical field
The present invention relates to a kind of method, belong to the environmental technology field with preparing haydite from urban sewage plant sludge.
(2) background technology
Sewage plant sludge is meant the flock that produces in the water treatment procedure, it contains nutritive elements such as large quantity of moisture, abundant organism and N, P, K, also contain objectionable impuritiess such as heavy metal and pathogenic bacteria simultaneously, if discharging does not add processing arbitrarily, not only environment being polluted, also is simultaneously the serious waste to resource.According to incompletely statistics, national quantity of wastewater effluent is 4.474 * 107m
3/ d, the sewage work of different scales, different treatment degree has more than 100.The sludge quantity that produced every day is about the 0.5%-1.0% of sewage load, in the mud except that containing nutrition such as abundant nitrogen, phosphorus, also contain a large amount of organism, heavy metal and various pathogenic microorganism, big, easy corrupt, unstable, the foul smelling of its capacity, if handle badly, will cause large-scale secondary pollution; Therefore simultaneously, the investment and the working cost of sludge treatment huge (accounting for the 12%-30% and the 20%-50% of full factory of sewage work expense respectively) sought cost-effective minimizing, pollution processing and utilizing technology innoxious and resource utilization is significant.
The resource technology of current mud mainly contains: 1. the forest land, farmland utilizes, 2. digestion producing methane, and 3. turning sludge into fuel technology, cakingagent is 5. made in 4. building materials utilization, and 6. low temperature pyrogenation system oil is 7. produced gac or the like.These recycling modes mainly are to carry out at the organic composition in the mud, and utilize the firing sludge haydite can give full play to organic and inorganic two kinds of compositions in the mud.
Haydite is to be main raw material by clay, argillaceous rock (shale, slate etc.), industrial waste (flyash, coal gangue), mud etc., through the particulate state ceramic thing of processing, roasting forms, be characterized in having perfectly round shape profile, shell is hard and has the glaze layer parcel that one deck water proof is protected gas, inside has more hole, it is cellular to be grey black, and its loose volume weight is 200～1000kg/m
3, and have certain intensity.It is a kind of material of construction preferably and environment-friendly materials, can be used for the starting material of material of construction such as waterproof, fire prevention, insulation, sound insulation, sorbent material, and the filtrate of water treatment reaches the substratum of the soilless culture in agricultural, the gardens etc.Not only solve this environment difficult problem of treatment and disposal of mud with mud as the raw material baking ceramsite, also realized the resource utilization of mud, turned waste into wealth, had significant environmental benefit, social benefit and economic benefit.
(3) summary of the invention
The present invention is main raw material with the municipal sewage sludge, with flyash and clay is auxiliary material, best proportioning is screened, and investigated each principal element in the sintering procedure (time of drying, preheating temperature, warm up time, burning expand temperature and bloated time of burning) and, determined the optimum process condition of baking ceramsite the influence of product performance.
A kind of method with preparing haydite from urban sewage plant sludge, step is as follows:
(1) in weight part, take by weighing oven dry, municipal wastewater treatment plant sanitary sewage dewatered sludge, flyash, each 15-25 part of clay, 25-35 part, 10-15 part after pulverizing, place container, add water and stir, up to being thick, make raw material ball then;
(2) raw material ball is put into electric heating constant temperature air dry oven dry 1h under 105 ℃;
(3) again raw material ball is put into chamber type electric resistance furnace and is warming up to 200 ℃, warm up time 10min; Continuation is warming up to 1100 ℃ in chamber type electric resistance furnace, roasting 5min; Naturally cool to room temperature, make haydite.
Wherein, contain SiO in the above-mentioned described sanitary sewage dewatered sludge
2Be no less than 30%; Described flyash contains SiO
2Be no less than 50%, Al
2O
3Be no less than 20%; Clay contains SiO
2Be no less than 60%, Al
2O
3Be no less than 15%.
Haydite of the present invention, its outward appearance are the globular solids of yellow or brown, and loose volume weight is 650-750kg/m
3, particle unit weight is 1050-1150kg/m
3, water-intake rate is 5.80-10.8%, specific surface area is 2.29-5.56m
2/ g.
The haydite that the present invention makes has lightweight, high-strength, characteristics such as water-intake rate is little, specific surface area is big, has purposes widely in departments such as building, environmental protection, metallurgy, chemical industry, oil, agriculturals.
The main inorganic chemistry component list of table 1 raw material
| SiO 2 | Al 2O 3 | MgO | CaO | Full iron | |
| Mud flyash clay | 31.30 57.54 64.02 | 0.13 24.38 15.81 | 1.30 1.60 1.69 | 4.03 6.00 1.99 | Trace 7.12 2.47 |
(4) embodiment
Embodiment 1:
(1) take by weighing oven dry, dewatered sludge of urban sewage plant, flyash, each 20g of clay, 30g, 10g after pulverizing, place beaker, stirring adds water then and stirs, and up to being thick, makes raw material ball then;
(2) raw material ball is put into electric heating constant temperature air dry oven dry 1h under 105 ℃;
(3) again raw material ball is put into chamber type electric resistance furnace and is warming up to 200 ℃, warm up time 10min; Continuation is warming up to 1100 ℃ in chamber type electric resistance furnace, roasting 5min; Naturally cool to room temperature, make haydite.
Its outward appearance is the globular solids of yellow or brown, and loose volume weight is 650-750kg/m
3, particle unit weight is 1050-1150kg/m
3, water-intake rate is 5.80-10.8%, specific surface area is 2.29-5.56m
2/ g.
Claims (2)
1. method with preparing haydite from urban sewage plant sludge, step is as follows:
(1) in weight part, take by weighing oven dry, municipal wastewater treatment plant sanitary sewage dewatered sludge, flyash, each 15-25 part of clay, 25-35 part, 10-15 part after pulverizing, place container, add water and stir, up to being thick, make raw material ball then;
(2) raw material ball is put into electric heating constant temperature air dry oven dry 1h under 105 ℃;
(3) again raw material ball is put into chamber type electric resistance furnace and is warming up to 200 ℃, warm up time 10min; Continuation is warming up to 1100 ℃ in chamber type electric resistance furnace, roasting 5min; Naturally cool to room temperature, make haydite.
2. a kind of method with preparing haydite from urban sewage plant sludge as claimed in claim 1 is characterized in that, contains SiO in the described sanitary sewage dewatered sludge
2Be no less than 30%; Described flyash contains SiO
2Be no less than 50%, Al
2O
3Be no less than 20%; Clay contains SiO
2Be no less than 60%, Al
2O
3Be no less than 15%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100171274A CN101148346A (en) | 2007-09-04 | 2007-09-04 | A method for preparing ceramsite from urban sewage plant sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100171274A CN101148346A (en) | 2007-09-04 | 2007-09-04 | A method for preparing ceramsite from urban sewage plant sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101148346A true CN101148346A (en) | 2008-03-26 |
Family
ID=39249060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100171274A Pending CN101148346A (en) | 2007-09-04 | 2007-09-04 | A method for preparing ceramsite from urban sewage plant sludge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101148346A (en) |
Cited By (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830688A (en) * | 2010-04-02 | 2010-09-15 | 桑建中 | Method for comprehensively treating sludge and preparing ceramsite from same |
| CN101898899A (en) * | 2010-03-22 | 2010-12-01 | 深圳市兖能环保科技有限公司 | Method and process for producing swelling ceramsite from sludge generated in process of sewage treatment |
| CN102010225A (en) * | 2010-10-28 | 2011-04-13 | 山东大学 | Method for preparing ceramic granules with lake sediment |
| CN101475362B (en) * | 2008-12-15 | 2011-05-04 | 山东省农业科学院土壤肥料研究所 | Biochemical ceramic as well as preparation method and application thereof |
| CN101386524B (en) * | 2008-10-28 | 2011-05-04 | 安徽工业大学 | Method for preparing porcelain granule from waste paper-making sludge |
| CN102078795A (en) * | 2010-12-08 | 2011-06-01 | 上海电力学院 | Fly ash forming material for controlling growth of algae in landscape water and applications of fly ash forming material |
| CN102133576A (en) * | 2010-01-22 | 2011-07-27 | 株式会社关东管财 | Eco-resource slag effective utilization system |
| CN101607748B (en) * | 2009-07-16 | 2011-08-17 | 上海电力学院 | Purification treatment method of low concentration nitrogen containing waste water |
| CN101560008B (en) * | 2009-05-26 | 2011-08-17 | 上海电力学院 | Method for treating low-concentration phosphorus-containing wastewater |
| CN101327987B (en) * | 2008-07-08 | 2011-09-14 | 山东大学 | Use of sludge porcelain granule in sewage disposal |
| CN101565297B (en) * | 2009-06-04 | 2011-09-28 | 山东大学 | Sludge steel slag ultra light ceramsite and method for preparing same |
| CN102219418A (en) * | 2011-03-28 | 2011-10-19 | 重庆大学 | Resource utilization method for preparing synthetic lightweight aggregate by sludge |
| CN102285786A (en) * | 2011-06-03 | 2011-12-21 | 南京工业大学 | Process for preparing ceramsite by using chemical excess sludge |
| CN102285787A (en) * | 2011-06-03 | 2011-12-21 | 南京工业大学 | A method for preparing ceramsite from chemical sludge |
| WO2012055257A1 (en) * | 2010-10-28 | 2012-05-03 | 河南天源环保高科股份有限公司 | Bioceramic with selective adsorption and digestion effects and production method thereof |
| CN102515834A (en) * | 2011-11-11 | 2012-06-27 | 安徽工业大学 | Preparation method of waterworks sludge ceramsites for pretreating micro-polluted water |
| CN102826830A (en) * | 2012-09-06 | 2012-12-19 | 金立虎 | Stale refuse plastic sludge sand and fly ash ceramsite and manufacturing method thereof |
| CN102964113A (en) * | 2012-12-12 | 2013-03-13 | 郑州金土地能源科技有限公司 | Building ceramsite material made of sludge |
| CN103304217A (en) * | 2013-06-17 | 2013-09-18 | 江苏全能机械设备有限公司 | Method for preparing ceramsite by utilizing sludge subjected to anaerobic digestion |
| CN103723999A (en) * | 2013-12-09 | 2014-04-16 | 北京工业大学 | Method for preparing flower ceramic particles with urban water supply sludge |
| CN104163617A (en) * | 2014-07-14 | 2014-11-26 | 深圳市环境科学研究院 | Ceramsite preparation method, ceramsite and ceramsite application |
| CN105819891A (en) * | 2016-03-08 | 2016-08-03 | 武汉大学 | Preparation method of sludge ceramsite used for medium and low concentration ammonia nitrogen wastewater treatment |
| CN107445592A (en) * | 2017-09-14 | 2017-12-08 | 黄河三角洲京博化工研究院有限公司 | A kind of multi-functional haydite and its production method that fluxing agent is made using pickling sludge |
| CN108585933A (en) * | 2018-06-15 | 2018-09-28 | 徐州世润德环保科技有限公司 | Porous ceramic grain and preparation method thereof |
| CN108675815A (en) * | 2018-05-25 | 2018-10-19 | 南昌大学 | A kind of preparation method of flyash sludge ceramsite |
| CN108821780A (en) * | 2018-06-21 | 2018-11-16 | 湖南双晟科技信息咨询有限公司 | A method of haydite is prepared using activated sludge |
| CN109384405A (en) * | 2018-11-19 | 2019-02-26 | 西安建筑科技大学 | A kind of high-strength ceramic granule and the method and system that it is prepared using municipal sludge |
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- 2007-09-04 CN CNA2007100171274A patent/CN101148346A/en active Pending
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| CN103304217A (en) * | 2013-06-17 | 2013-09-18 | 江苏全能机械设备有限公司 | Method for preparing ceramsite by utilizing sludge subjected to anaerobic digestion |
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| CN104163617A (en) * | 2014-07-14 | 2014-11-26 | 深圳市环境科学研究院 | Ceramsite preparation method, ceramsite and ceramsite application |
| CN104163617B (en) * | 2014-07-14 | 2016-04-27 | 深圳市环境科学研究院 | The application of a kind of haydite production method and haydite and haydite |
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| CN108821780A (en) * | 2018-06-21 | 2018-11-16 | 湖南双晟科技信息咨询有限公司 | A method of haydite is prepared using activated sludge |
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| CN109437960B (en) * | 2018-12-26 | 2022-02-08 | 河南省福可思环保科技有限公司 | Method for preparing ceramsite by using waste residue of polyaluminium chloride of water treatment agent |
| CN109680015A (en) * | 2019-02-01 | 2019-04-26 | 内蒙古千华环保科技有限公司 | Fowl poultry kind cultivation is butchered and agricultural wastes harmless treatment process and production line |
| CN110229016A (en) * | 2019-07-19 | 2019-09-13 | 中原工学院 | A kind of sludge ceramsite and preparation method using city sewage and sludge firing |
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| CN115849943A (en) * | 2022-12-13 | 2023-03-28 | 昆明理工大学 | Method for synthesizing ceramsite |
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