CN102249730A - Method for preparing haydite from sludge incineration ash in chemical industry - Google Patents
Method for preparing haydite from sludge incineration ash in chemical industry Download PDFInfo
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- CN102249730A CN102249730A CN2011101500805A CN201110150080A CN102249730A CN 102249730 A CN102249730 A CN 102249730A CN 2011101500805 A CN2011101500805 A CN 2011101500805A CN 201110150080 A CN201110150080 A CN 201110150080A CN 102249730 A CN102249730 A CN 102249730A
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- sludge
- haydite
- drying
- dry blend
- dry
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- 239000010802 sludge Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000000126 substance Substances 0.000 title abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000002156 mixing Methods 0.000 claims abstract description 14
- 238000001035 drying Methods 0.000 claims abstract description 10
- 238000003889 chemical engineering Methods 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 12
- 239000002956 ash Substances 0.000 claims description 11
- 239000002994 raw material Substances 0.000 claims description 9
- 239000004411 aluminium Substances 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 7
- 238000005245 sintering Methods 0.000 claims description 6
- 239000004927 clay Substances 0.000 claims description 5
- 238000005469 granulation Methods 0.000 claims description 5
- 230000003179 granulation Effects 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000010881 fly ash Substances 0.000 claims description 4
- 230000018044 dehydration Effects 0.000 claims description 3
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 238000000227 grinding Methods 0.000 claims description 2
- 239000002699 waste material Substances 0.000 abstract description 8
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000002386 leaching Methods 0.000 abstract description 4
- 238000004064 recycling Methods 0.000 abstract description 4
- 230000001988 toxicity Effects 0.000 abstract description 3
- 231100000419 toxicity Toxicity 0.000 abstract description 3
- 239000002910 solid waste Substances 0.000 abstract description 2
- 239000008188 pellet Substances 0.000 abstract 2
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 238000007580 dry-mixing Methods 0.000 abstract 1
- 238000005265 energy consumption Methods 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000000605 extraction Methods 0.000 abstract 1
- 231100001261 hazardous Toxicity 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000010865 sewage Substances 0.000 description 5
- 239000002920 hazardous waste Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000002361 compost Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002574 poison Substances 0.000 description 3
- 231100000614 poison Toxicity 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 2
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 210000004681 ovum Anatomy 0.000 description 1
- 244000045947 parasite Species 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Abstract
The invention relates to recycling of industrial solid waste, and discloses a method for preparing haydite from sludge incineration ash in chemical industry. The method comprises the following steps: drying sludge subjected to mechanical dewatering, incinerating at high temperature, proportioning, carrying out dry mixing, adding water, evenly mixing, granulating to obtain fresh pellets, drying the fresh pellets, and roasting at 1050-1150 DEG C to form sludge haydite. The leaching concentration of heavy metals is far below GB 5085.3-2007 (Identification Standards for Hazardous Wastes-Identification for Extraction Toxicity). The method has the advantages of low energy consumption and low production cost, develops a new way for recycling sludge in the fields of waste treatment with waste and cyclic utilization of waste, and has obvious environmental benefit and economic benefit.
Description
Technical field
The present invention relates to a kind of disposal of resources of industrial solid castoff, be specifically related to a kind of method of utilizing the chemical engineering sludge incineration residue to prepare haydite.
Background technology
At present, all adopt Wastewater Treated by Activated Sludge Process sewage above 90% sewage disposal in the world, in treating processes, can produce the mud that accounts for sewage volume 0.5%～1.0%.The moisture percentage in sewage sludge height, volume is big, and is perishable, and complicated component contains organism, pathogenic bacteria parasite (ovum) and the heavy metal etc. of chemical industry residue, harmful, difficult degradation, and the processing cost height accounts for 40%～60% of entire sewage technology running cost.Traditional sludge is handled with disposal options such as landfill, Pai Hai, burning etc. and is all had separately pros and cons, all can cause in various degree influence to environment.Mud is carried out minimizing and resource utilization, can not only realize making full use of, turning waste into wealth of material, and can promote the foundation and the Sustainable development of recycling economy.Thereby, inquire into treating sludge, particularly belong to the minimizing of dangerous solid useless chemical engineering sludge, innoxious and resource utilization has important practical significance.
The mud of chemical industry is not only bulky, and organic poison content height, and particle is thin, is cotton-shaped colloidal structure, has high-hydrophilic.Surplus the existing big or small chemical industrial park 1000 of China, have family surplus the big or small chemical enterprise 100,000.These chemical enterprises produce tens thousand of tons excess sludge every day, and the water ratio of mud is up to more than 95%, and contain various organic poisons.According to " national Hazardous wastes register " regulation of the up-to-date promulgation of China, the excess sludge that produces in the industry wastewater treatment process such as numerous petrochemical industry, medicine and agricultural chemicals is dangerous solid waste, must send the Hazardous wastes disposal center of qualification to focus on.
China's chemical engineering sludge generally adopts burning disposal, and burning expense height, many chemical enterprises transfer to adopt landfill or compost treatment excess sludge, owing to contain a large amount of organic poisons in the mud, landfill or compost easily produce serious secondary pollution, the harm ecotope, and compost need take a large amount of farmlands.Therefore, how more effectively to dispose chemical engineering sludge, how chemical engineering sludge being turned waste into wealth is the problem that presses for solution.At present, the mud that is used for the potting grain mainly is excess sludge and the municipal sludge that river bottom mud, sanitary sewage disposal produce, and rarely has report with the research that the chemical engineering sludge incineration residue that belongs to Hazardous wastes prepares haydite.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, a kind of method of utilizing the chemical engineering sludge incineration residue to prepare haydite is provided, realize the recycling sludge utilization.
Technical scheme of the present invention is: a kind of method of utilizing the chemical engineering sludge incineration residue to prepare haydite, and its concrete steps are as follows:
(1), dry chemical engineering sludge behind mechanical dehydration, obtain dewatered sludge;
(2), dewatered sludge is through 1200～1300 ℃ of high temperature incineration 10-30 minutes, obtains sludge burning ash residue;
(3), grind sludge burning ash residue, 30～100 mesh sieves excessively;
(4), in the mud lime-ash of above-mentioned grinding, add auxiliary material, stirring and evenly mixing obtains dry blend;
(5), to add water to water ratio in dry blend be 5～15%, the restir mixing;
(6), granulation makes raw material ball;
(7), dry raw material ball;
(8), with 10～30 ℃/min temperature rise rate, be under 1050～1150 ℃ in temperature, sintering 10～20min; After the cooling, promptly get haydite.
Quality water ratio through the chemical engineering sludge behind the mechanical dehydration is generally 70～85%.
Drying temperature in the preferred steps (1) is 105～120 ℃, and be 4～24h time of drying; The drying temperature of step (6) raw material ball is 80～105 ℃, and be 4～24h time of drying.
Preferred described auxiliary material is aluminium powder and a kind of mixture that is at least in flyash or the clay; Wherein auxiliary material accounts for 40～50% of dry blend total mass, and aluminium powder accounts for 0.1～2% of dry blend total mass ratio; The mud lime-ash accounts for 50～60% of dry blend total mass.
The haydite that the present invention makes has lightweight, high strength, has certain characteristics such as specific surface area concurrently, can be widely used in the Industrial Wastewater Treatment.
Beneficial effect:
Compare with the traditional sludge treatment process, have following advantage:
1, this technology has not only realized the minimizing of chemical industry excess sludge, and has thoroughly realized the resource utilization of chemical industry excess sludge, is easy to industrialization.
2, prepare haydite with mud and reached " turning waste into wealth ", " treatment of wastes with processes of wastes against one another " purpose, have good environment and social benefit.
3, behind the high temperature sintering, the organism in the mud can obtain permineralization, and the heavy metal of haydite leaches the leach liquor maximum permissible concentration of concentration far below regulation among the GB GB 5085.3-2007 (the Hazardous wastes judging standard leaches toxicity and differentiates).
Embodiment
Mud is all taken from the excess sludge of chemical industry garden, Jiangsu composite wastewater treatment plant after the belt press filtration, and the quality water ratio is 75～85%, and how tame chemical enterprises such as insecticide factory, petrochemical plant, medical factory are arranged in this chemical industrial park.
Embodiment 1:
With the quality water ratio is this excess sludge of 75%, and 110 ℃ of dry 8h grind through 1200 ℃ of high temperature incinerations dewatered sludge after 30 minutes, crosses 30 mesh sieves; Get sieve back sludge burning ash residue 50g, clay 18g, flyash 30g, aluminium powder 2g respectively, drop into the batch mixing basin respectively, abundant stirring and evenly mixing, adding water management quality water ratio is 10%; Granulation behind the mixing gets raw material ball; Behind 80 ℃ of dry 12h, 15 ℃/min of control temperature rise rate at 1050 ℃ of sintering 15min, promptly gets haydite.After tested, its tap density is 0.65g/cm
3, cylindrical compress strength is 3.1MPa, its heavy metal leaching test the results are shown in Table 1.
Embodiment 2:
With the quality water ratio is this excess sludge of 85%,, 120 ℃ of dry 6h grind at 1250 ℃ of high temperature incinerations dewatered sludge after 10 minutes, cross 60 mesh sieves; Get sieve back sludge burning ash residue 60g, clay 39g, aluminium powder 1g respectively, drop into the batch mixing basin respectively, abundant stirring, mixing, adding water management quality water ratio is 15%, granulation behind the mixing gets raw material ball; Behind 100 ℃ of dry 6h, 25 ℃/min of control temperature rise rate at 1100 ℃ of sintering 12min, promptly gets haydite.After tested, its tap density is 0.73g/cm
3, cylindrical compress strength is 3.5MPa, its heavy metal leaching test the results are shown in Table 1.
Embodiment 3:
With the quality water ratio is this excess sludge of 85%, and 105 ℃ of dry 24h grind at 1250 ℃ of high temperature incinerations dewatered sludge after 20 minutes, crosses 100 mesh sieves; Get sieve back sludge burning ash residue 55g, clay 19.5g, flyash 25g respectively, aluminium powder 0.5g drops into the batch mixing basin respectively, abundant stirring and evenly mixing, and adding the water management water ratio is 8%; Granulation behind the mixing gets raw material ball; Behind 105 ℃ of dry 4h, 30 ℃/min of control temperature rise rate at 1150 ℃ of sintering 10min, promptly gets haydite.After tested, its tap density is 0.8g/cm
3, cylindrical compress strength is 4.0MPa, its heavy metal leaching test the results are shown in Table 1.
Table 1 haydite leaches heavy metal content analysis in the toxicity telling test leach liquor
Claims (3)
1. method of utilizing the chemical engineering sludge incineration residue to prepare haydite, its concrete steps are as follows:
(1), dry chemical engineering sludge behind mechanical dehydration, obtain dewatered sludge;
(2), dewatered sludge is through 1200～1300 ℃ of high temperature incineration 10-30 minutes, obtains sludge burning ash residue;
(3), grind sludge burning ash residue, 30～100 mesh sieves excessively;
(4), in the mud lime-ash of above-mentioned grinding, add auxiliary material, stirring and evenly mixing obtains dry blend;
(5), to add water to water ratio in dry blend be 5～15%, the restir mixing;
(6), granulation makes raw material ball;
(7), dry raw material ball;
(8), with 10～30 ℃/min temperature rise rate, be under 1050～1150 ℃ in temperature, sintering 10～20min; After the cooling, promptly get haydite.
2. method according to claim 1 is characterized in that the drying temperature in the step (1) is 105～120 ℃, and be 4～24h time of drying; The drying temperature of step (6) raw material ball is 80～105 ℃, and be 4～24h time of drying.
3. method according to claim 1 is characterized in that described auxiliary material is aluminium powder and a kind of mixture that is at least in flyash or the clay; Wherein auxiliary material accounts for 40～50% of dry blend total mass, and wherein aluminium powder accounts for 0.1～2% of dry blend total mass ratio; The mud lime-ash accounts for 50～60% of dry blend total mass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201110150080 CN102249730B (en) | 2011-06-03 | 2011-06-03 | Method for preparing haydite from sludge incineration ash in chemical industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110150080 CN102249730B (en) | 2011-06-03 | 2011-06-03 | Method for preparing haydite from sludge incineration ash in chemical industry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102249730A true CN102249730A (en) | 2011-11-23 |
| CN102249730B CN102249730B (en) | 2013-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110150080 Active CN102249730B (en) | 2011-06-03 | 2011-06-03 | Method for preparing haydite from sludge incineration ash in chemical industry |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103145442A (en) * | 2013-03-28 | 2013-06-12 | 南京工业大学 | Method for preparing non-sintered ceramisites by using chemical sludge |
| CN103145403A (en) * | 2013-03-19 | 2013-06-12 | 南京工业大学 | Heavy metal stabilizing method in process of preparing filler by chemical sludge burning ash |
| CN103224385A (en) * | 2013-03-19 | 2013-07-31 | 南京工业大学 | Technology for preparing filler through blending chemical sludge burning ash with inorganic heavy metal stabilizer |
| CN103274670A (en) * | 2013-06-09 | 2013-09-04 | 南京工业大学 | Method for preparing light porous low-toxicity chemical sludge-based filler |
| CN104973739A (en) * | 2015-06-18 | 2015-10-14 | 南京工业大学 | Surface-coated modification method for chemical sludge-based filler |
| CN105601313A (en) * | 2014-11-24 | 2016-05-25 | 南京工大环境科技有限公司 | Method for preparing baking-free ecological bricks from chemical and residual sludge as well as prepared product |
| CN105819642A (en) * | 2016-05-03 | 2016-08-03 | 娈疯 | Sludge crystallization solidification treatment technology |
| CN105924220A (en) * | 2016-04-12 | 2016-09-07 | 南京工业大学 | Technology for preparing filler by adding compound stabilizer into chemical sludge incineration ash |
| CN106220012A (en) * | 2016-07-06 | 2016-12-14 | 南京工业大学 | A kind of fluorine-containing sludge prepares the method for light-weight aggregate |
| CN109052894A (en) * | 2018-08-01 | 2018-12-21 | 宁波亚菲科技有限公司 | Sludge carbonization treatment comprehensive utilization process |
| CN111517820A (en) * | 2020-05-25 | 2020-08-11 | 天津水泥工业设计研究院有限公司 | High-strength ceramsite containing sludge ash and preparation method thereof |
| CN111574193A (en) * | 2020-05-25 | 2020-08-25 | 天津水泥工业设计研究院有限公司 | Sludge ash ceramsite filter material and preparation method thereof |
| CN112624735A (en) * | 2020-12-18 | 2021-04-09 | 刘海洋 | Resource utilization method of surface treatment waste |
| CN113337251A (en) * | 2021-05-31 | 2021-09-03 | 北京建筑大学 | Preparation system and method of sludge-based shaped phase-change heat storage material |
| CN114213143A (en) * | 2022-02-21 | 2022-03-22 | 山东恒远利废技术股份有限公司 | Method for harmless treatment of municipal sludge and preparation of ceramsite |
| CN114605163A (en) * | 2022-03-01 | 2022-06-10 | 同济大学 | Ceramic particle based on sludge incineration ash and preparation method and application thereof |
| CN114835470A (en) * | 2022-04-08 | 2022-08-02 | 广州市净水有限公司 | Method for preparing ceramic artware by utilizing dried sludge |
| CN115337922A (en) * | 2022-08-01 | 2022-11-15 | 浙江大学 | Ceramsite catalyst based on activated sludge biomass fuel ash, and preparation method and application thereof |
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Cited By (24)
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| CN103145403B (en) * | 2013-03-19 | 2015-02-18 | 南京工业大学 | Heavy metal stabilizing method in process of preparing filler by chemical sludge burning ash |
| CN103145403A (en) * | 2013-03-19 | 2013-06-12 | 南京工业大学 | Heavy metal stabilizing method in process of preparing filler by chemical sludge burning ash |
| CN103224385A (en) * | 2013-03-19 | 2013-07-31 | 南京工业大学 | Technology for preparing filler through blending chemical sludge burning ash with inorganic heavy metal stabilizer |
| CN103224385B (en) * | 2013-03-19 | 2014-10-29 | 南京工业大学 | Technology for preparing filler through blending chemical sludge burning ash with inorganic heavy metal stabilizer |
| CN103145442A (en) * | 2013-03-28 | 2013-06-12 | 南京工业大学 | Method for preparing non-sintered ceramisites by using chemical sludge |
| CN103145442B (en) * | 2013-03-28 | 2014-07-16 | 南京工业大学 | Method for preparing non-sintered ceramisites by using chemical sludge |
| CN103274670B (en) * | 2013-06-09 | 2014-11-12 | 南京工业大学 | Method for preparing light porous low-toxicity chemical sludge-based filler |
| CN103274670A (en) * | 2013-06-09 | 2013-09-04 | 南京工业大学 | Method for preparing light porous low-toxicity chemical sludge-based filler |
| CN105601313A (en) * | 2014-11-24 | 2016-05-25 | 南京工大环境科技有限公司 | Method for preparing baking-free ecological bricks from chemical and residual sludge as well as prepared product |
| CN104973739A (en) * | 2015-06-18 | 2015-10-14 | 南京工业大学 | Surface-coated modification method for chemical sludge-based filler |
| CN105924220B (en) * | 2016-04-12 | 2018-11-13 | 南京工业大学 | Chemical engineering sludge incineration residue adds the technique that compound stabilizer prepares filler |
| CN105924220A (en) * | 2016-04-12 | 2016-09-07 | 南京工业大学 | Technology for preparing filler by adding compound stabilizer into chemical sludge incineration ash |
| CN105819642A (en) * | 2016-05-03 | 2016-08-03 | 娈疯 | Sludge crystallization solidification treatment technology |
| CN106220012A (en) * | 2016-07-06 | 2016-12-14 | 南京工业大学 | A kind of fluorine-containing sludge prepares the method for light-weight aggregate |
| CN106220012B (en) * | 2016-07-06 | 2018-11-13 | 南京工业大学 | A kind of method that fluorine-containing sludge prepares light-weight aggregate |
| CN109052894A (en) * | 2018-08-01 | 2018-12-21 | 宁波亚菲科技有限公司 | Sludge carbonization treatment comprehensive utilization process |
| CN111517820A (en) * | 2020-05-25 | 2020-08-11 | 天津水泥工业设计研究院有限公司 | High-strength ceramsite containing sludge ash and preparation method thereof |
| CN111574193A (en) * | 2020-05-25 | 2020-08-25 | 天津水泥工业设计研究院有限公司 | Sludge ash ceramsite filter material and preparation method thereof |
| CN112624735A (en) * | 2020-12-18 | 2021-04-09 | 刘海洋 | Resource utilization method of surface treatment waste |
| CN113337251A (en) * | 2021-05-31 | 2021-09-03 | 北京建筑大学 | Preparation system and method of sludge-based shaped phase-change heat storage material |
| CN114213143A (en) * | 2022-02-21 | 2022-03-22 | 山东恒远利废技术股份有限公司 | Method for harmless treatment of municipal sludge and preparation of ceramsite |
| CN114605163A (en) * | 2022-03-01 | 2022-06-10 | 同济大学 | Ceramic particle based on sludge incineration ash and preparation method and application thereof |
| CN114835470A (en) * | 2022-04-08 | 2022-08-02 | 广州市净水有限公司 | Method for preparing ceramic artware by utilizing dried sludge |
| CN115337922A (en) * | 2022-08-01 | 2022-11-15 | 浙江大学 | Ceramsite catalyst based on activated sludge biomass fuel ash, and preparation method and application thereof |
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Assignee: JIANGSU T.Y. ENVIRONMENTAL ENERGY Co.,Ltd. Assignor: Nanjing University of Technology Contract record no.: 2012320000352 Denomination of invention: Method for preparing haydite from sludge incineration ash in chemical industry License type: Exclusive License Open date: 20111123 Record date: 20120330 |
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Assignee: JIANGSU T.Y. ENVIRONMENTAL ENERGY Co.,Ltd. Assignor: Nanjing University of Technology Contract record no.: 2012320000352 Date of cancellation: 20121205 |
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