CN103435107A - Method for producing sludge conditioner by recycling wastes - Google Patents
Method for producing sludge conditioner by recycling wastes Download PDFInfo
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- CN103435107A CN103435107A CN2013103803816A CN201310380381A CN103435107A CN 103435107 A CN103435107 A CN 103435107A CN 2013103803816 A CN2013103803816 A CN 2013103803816A CN 201310380381 A CN201310380381 A CN 201310380381A CN 103435107 A CN103435107 A CN 103435107A
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- reaction
- sludge conditioner
- factory
- sulfuric acid
- aluminum material
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Abstract
The invention discloses a method for producing a sludge conditioner by recycling wastes. The method comprises the following steps of: (1) acid soluble reaction: carrying out sufficient mixing reaction on aluminum material factory alkali residues, steel material factory pickle liquor and inorganic waste sulfuric acid in a reaction kettle; (2) oxidation-reduction reaction: continuously stirring, and adding an oxidizing agent to a mixed solution for carrying out the oxidation-reduction reaction; (3) hydrolytic-polymeric reaction: stopping stirring, naturally cooling for carrying out the hydrolytic-polymeric reaction, and carrying out solid-liquid separation on undissolved substances after the undissolved substances are naturally deposited in a reaction system, wherein an obtained supernatant is a finished product. According to the invention, all used raw materials are wastes, so that the purpose of treating wastes with wastes and the purpose of integrated utilization are completely achieved.
Description
Technical field
The present invention relates to a kind of recycling refuse and produce the method for sludge conditioner.
Background technology
Along with industrial development, Development of China's Urbanization is further accelerated, the sludge quantity that trade effluent and sanitary sewage disposal produce increases day by day, the situation that the accumulation of a large amount of mud not only makes rubbish surround the city anxiety makes the matter worse, and the various pollutents such as the sewage in mud, heavy metal, pathogenic bacteria, foul smell have caused for the second time and have polluted environment, the sludge treatment expense accounts for 40% ~ 50% of Sewage Plant overall running cost according to incompletely statistics, therefore the useful mud of recycling, at utmost reduce the important component part that moisture percentage in sewage sludge becomes sustainable development of China.
The method of current sludge treatment has a variety of, but, in order to guarantee the sewage qualified discharge and to reduce moisture percentage in sewage sludge, mud is nursed one's health and dewatered becomes the indispensable integral part of sludge handling process.According to the kind of mud and the difference of character, and the difference that sludge treatment is mastered a skill, different experts has different selection to sludge conditioner.
Patent publication No. is CN102358679A, and name is called a kind of sludge conditioner and uses the deep dehydration method of sludge conditioner.The Wingdale that the magnesia that the method is 40 ~ 70% by weight percent is 30 ~ 40% with weight percent mixes after pulverizing, and sends in retort furnace 900 ~ 1000 ℃ of calcinations 1 ~ 2 hour, and sludge conditioner is made in cooling.Although the raw material that this invention is used is more cheap, the preparation method is not only complicated but also power consumption is quite large, so the sludge conditioner cost of this invention is higher, and the mud increase-volume is also larger.
Patent publication No. is CN103011548A, name is called a kind of conditioning of built-up type conditioning mud and carries out mud dewatering method, after this invention is used traditional chemical sludge conditioner (cationic polyacrylamide and polymerize aluminum chloride) modified, then it is modified to carry out mud with wood chip.Although this invention is used wood chip to carry out that mud is modified has certain novelty, the modified process cost of whole mud is very high, and the mud increase-volume is also larger.
Patent publication No. is CN101851054A, name is called sludge dewatering conditioning and its preparation method and application, utilize polyacrylamide, carboxymethyl cellulose, xylogen to be made into sludge conditioner, this invention collocation method is loaded down with trivial details not easy to operate, raw material sources are limited, and expensive and product shelf life is short etc., and shortcoming is not suitable for extensive sludge treatment, market utilizes limited space.
Patent publication No. is CN101851053A, name is called a kind of inorganic composite sludge dehydration conditioner and application thereof, utilize that Sodium dodecylbenzene sulfonate and sodium hydroxide are composite to be formed, although this invention production technique is simple, but the sodium hydroxide usage quantity is larger, the equipment alkali resistance is had to very high requirement, use in addition Sodium dodecylbenzene sulfonate more expensive, the supernatant liquor SS after press filtration is higher.Due to its higher cost and limited flocculating property, can only be for the specific sludge conditioning of smaller portions.
Patent publication No. is CN102452782A, and name is called the inorganic composite conditioner of high-effective sludge dehydration.Patent publication No. is CN1986788A, and name is called chemical amendment and the dewatering thereof of sludge dewatering.Patent publication No. is CN101633549A, and name is called a kind of sludge conditioner and mud dewatering method thereof etc., all needs to add the calcium salt conditioning of mud pH such as Wingdale.The sludge conditioner of these inventions not only cost is all higher, and is also a kind of consumption to natural resourcess such as limestone.Totally ten eight fundamental state policies of promoting a conservation culture greatly in not meeting.
Summary of the invention
The object of the present invention is to provide a kind of recycling refuse to produce the method for sludge conditioner.
The technical solution used in the present invention is:
A kind of recycling refuse is produced the method for sludge conditioner, comprises the following steps:
1) sour molten reaction: in reactor, aluminum material factory's alkaline residue, steel factory spent pickle liquor, mineral waste sulfuric acid are uniformly mixed to reaction fully;
2) redox reaction: continue to stir, in mixed solution, add oxygenant to carry out redox reaction;
3) hydrolytic-polymeric reaction: stop stirring, the polyreaction that is hydrolyzed of naturally lowering the temperature, carry out solid-liquid separation after the insolubles natural sedimentation in reaction system, and the gained supernatant liquor is finished product.
In step 1), aluminum material factory's alkaline residue, the spent pickle liquor mass ratio m of steel factory
1: m
2=C
1a
2: A
1, the quality m of Waste Sulfuric Acid
3=C
2(m
1+ m
2)/A
3, m
1, m
2, m
3be respectively the quality of aluminum material factory's alkaline residue, steel factory spent pickle liquor, Waste Sulfuric Acid, A
1for Al in aluminum material factory's alkaline residue
2o
3mass percent, A
2for mass percent ferrous in steel factory spent pickle liquor, A
3for H in Waste Sulfuric Acid
2sO
4mass percent, C
1be 0.1 ~ 0.25, C
2be 0.05 ~ 0.25.
The time of the reaction of step 1) is 0.5-4h.
Step 2), in, described oxygenant is at least one in sodium chlorate, hydrogen peroxide, chlorine, oxygen, clorox.
Step 2), in, the time of redox reaction is 30min-1h.
In step 3), the time of hydrolytic-polymeric reaction is 1-24h.
The invention has the beneficial effects as follows: the present invention is with aluminum material factory's alkaline residue, steel factory spent pickle liquor, the waste resources such as mineral waste sulfuric acid are raw material, produce conditioning mud effective, the poly-ferric sulfate chloride aluminium that cost is extremely low, realized the treatment of wastes with processes of wastes against one another, and resource has been carried out to sufficient recycling, meet sustainable development idea, good Social benefit and economic benefit is arranged.
The all raw material used in the present invention is waste, has reached the treatment of wastes with processes of wastes against one another fully, the purpose of comprehensive utilization.
Embodiment
Below in conjunction with specific embodiment, the present invention is described further:
embodiment 1:
(1) detect Al in aluminum material factory's alkaline residue
2o
3mass percent be 10%, ferrous (with FeCl in steel factory acid waste water
2meter) mass percent is that 25%(detects total Fe in steel factory acid waste water
2+mass percent is a, is scaled FeCl
2, a * M(FeCl
2)/M(Fe
2+)=25wt%), H in Waste Sulfuric Acid
2sO
4in mass percent be 80%;
(2) start the stirrer on reactor, under the condition stirred, first add steel factory spent pickle liquor, then add the alkaline residue of aluminum material factory on one side, drip mineral waste sulfuric acid on one side, wherein steel factory spent pickle liquor is 20 tons, and aluminum material factory's alkaline residue weight is 8 tons, mineral waste sulfuric acid weight is 4.8 tons, drips rear stirring reaction 30 minutes.
(3) continue to stir, in mixed solution, add 0.7 ton of sodium chlorate to carry out redox reaction, react standing after 30 minutes, solid-liquid separation is carried out in natural sedimentation in 1 hour; The gained supernatant liquor is liquid polymeric chloro sulphuric acid iron aluminium; The Al of liquid polymeric chloro sulphuric acid iron aluminium after testing
2o
3mass percent is 2.35wt%, Fe
3+(with FeCl
3meter) mass percent is that 19.05wt%(is detected total Fe
3+mass percent is b, is scaled FeCl
3, b * M(FeCl
3)/M(Fe
3+)=19.05wt%), the polymerization degree is 8%.
embodiment 2:
(1) detect Al in aluminum material factory's alkaline residue
2o
3mass percent be 15%, ferrous (with FeCl in steel factory acid waste water
2meter) mass percent is 28%, H in Waste Sulfuric Acid
2sO
4in mass percent be 80%;
(2) start the stirrer on reactor, under the condition stirred, first add steel factory spent pickle liquor, then add the alkaline residue of aluminum material factory on one side, drip mineral waste sulfuric acid on one side, wherein steel factory spent pickle liquor is 20 tons, and aluminum material factory's alkaline residue weight is 6.8 tons, mineral waste sulfuric acid weight is 5.85 tons, drips rear stirring reaction 30 minutes.
(3) continue to stir, in mixed solution, add 0.785 ton of sodium chlorate to carry out redox reaction, react standing after 30 minutes, solid-liquid separation is carried out in natural sedimentation in 1 hour; The gained supernatant liquor is liquid polymeric chloro sulphuric acid iron aluminium; The Al of liquid polymeric chloro sulphuric acid iron aluminium after testing
2o
3mass percent is 3.02wt%, Fe
3+(with FeCl
3meter) mass percent is 21.4wt%, and the polymerization degree is 8.2%.
the contrast test example:
Using capillary water absorbing time (CST) as reacting sludge conditioner to the sludge conditioning performance index, with the liquid polymeric chloro sulphuric acid iron aluminium of implementing 2 preparations, commercially available liquid ferrous trichloride (FeCl
3: 24.4 wt%)+two kinds, lime sludge conditioner scheme is carried out simultaneous test to municipal sewage plant, Foshan concentration basin mud, and concrete steps are as follows:
(1) get the coagulation jar of 6 1000ml, pour municipal sewage plant, 1000ml Foshan concentration basin mud into;
(2) add respectively the liquid polymeric chloro sulphuric acid iron aluminium (Al of 5000ppm, 8000 ppm, 10000 ppm embodiment 2 in each beaker
2o
3: 3.02wt%, Fe
3+(with FeCl
3meter): 21.4 wt%), 5000ppm, 8000 ppm, the commercially available liquid ferrous trichloride (FeCl of 10000 ppm
3: 24.4 wt%);
(3) after adding sludge conditioner, start the coagulation stirrer and stir, after stirring 30s with 300r/min, added in upper step that in the beaker of commercially available liquid ferrous trichloride, to add appropriate lime to continue to stir 30s to be measured;
(4) after sludge agitation, add immediately in the CST circular groove, open the CST determinator, start timing, after timing stops, the time shown on the CST instrument is the CST of mud;
(5) repeating step 3,4 until six groups of experiments all complete.
The CST testing data is in Table 1, and testing data shows, relatively traditional sludge conditioner (iron trichloride), and liquid polymeric chloro sulphuric acid iron aluminium of the present invention, conditioning mud effect is more obvious, to sludge pH, changes less.
table 1: two kinds of sludge conditioner lignin-sludge effect data contrast tables
Claims (6)
1. a recycling refuse is produced the method for sludge conditioner, it is characterized in that: comprise the following steps:
1) sour molten reaction: in reactor, aluminum material factory's alkaline residue, steel factory spent pickle liquor, mineral waste sulfuric acid are uniformly mixed to reaction fully;
2) redox reaction: continue to stir, in mixed solution, add oxygenant to carry out redox reaction;
3) hydrolytic-polymeric reaction: stop stirring, the polyreaction that is hydrolyzed of naturally lowering the temperature, carry out solid-liquid separation after the insolubles natural sedimentation in reaction system, and the gained supernatant liquor is finished product.
2. the method that a kind of recycling refuse according to claim 1 is produced sludge conditioner is characterized in that: in step 1), and aluminum material factory's alkaline residue, the spent pickle liquor mass ratio m of steel factory
1: m
2=C
1a
2: A
1, the quality m of Waste Sulfuric Acid
3=C
2(m
1+ m
2)/A
3, m
1, m
2, m
3be respectively the quality of aluminum material factory's alkaline residue, steel factory spent pickle liquor, Waste Sulfuric Acid, A
1for Al in aluminum material factory's alkaline residue
2o
3mass percent, A
2for mass percent ferrous in steel factory spent pickle liquor, A
3for H in Waste Sulfuric Acid
2sO
4mass percent, C
1be 0.1 ~ 0.25, C
2be 0.05 ~ 0.25.
3. the method that a kind of recycling refuse according to claim 1 is produced sludge conditioner, it is characterized in that: the time of the reaction of step 1) is 0.5-4h.
4. the method that a kind of recycling refuse according to claim 1 is produced sludge conditioner, is characterized in that: step 2) in, described oxygenant is at least one in sodium chlorate, hydrogen peroxide, chlorine, oxygen, clorox.
5. the method that a kind of recycling refuse according to claim 1 is produced sludge conditioner, is characterized in that: step 2) in, the time of redox reaction is 30min-1h.
6. the method that a kind of recycling refuse according to claim 1 is produced sludge conditioner, it is characterized in that: in step 3), the time of hydrolytic-polymeric reaction is 1-24h.
Priority Applications (1)
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|---|---|---|---|
| CN201310380381.6A CN103435107B (en) | 2013-08-27 | 2013-08-27 | Method for producing sludge conditioner by recycling wastes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310380381.6A CN103435107B (en) | 2013-08-27 | 2013-08-27 | Method for producing sludge conditioner by recycling wastes |
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| Publication Number | Publication Date |
|---|---|
| CN103435107A true CN103435107A (en) | 2013-12-11 |
| CN103435107B CN103435107B (en) | 2015-04-29 |
Family
ID=49688860
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|---|---|---|---|
| CN201310380381.6A Active CN103435107B (en) | 2013-08-27 | 2013-08-27 | Method for producing sludge conditioner by recycling wastes |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104986805A (en) * | 2015-06-23 | 2015-10-21 | 河北冀泽生物科技有限公司 | Production method for polyferric chloride sulfate |
| CN110127774A (en) * | 2019-06-13 | 2019-08-16 | 常州润德石墨科技有限公司 | Utilize the method for preparing Polyferric Sulfate Flocculants with sludge in acid cleaning of steel tube |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1203194A (en) * | 1998-07-13 | 1998-12-30 | 彭继增 | Process for producing poly-aluminum chloride and compound poly-iron-aluminum chloride |
| CN101074128A (en) * | 2007-06-26 | 2007-11-21 | 上海大学 | Production of polymerized ferric-aluminum chloride composite coagulating agent |
| CN102515330A (en) * | 2012-01-13 | 2012-06-27 | 重庆大学 | Preparation method of polymeric aluminum ferric sulfate flocculating agent (liquid) |
-
2013
- 2013-08-27 CN CN201310380381.6A patent/CN103435107B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1203194A (en) * | 1998-07-13 | 1998-12-30 | 彭继增 | Process for producing poly-aluminum chloride and compound poly-iron-aluminum chloride |
| CN101074128A (en) * | 2007-06-26 | 2007-11-21 | 上海大学 | Production of polymerized ferric-aluminum chloride composite coagulating agent |
| CN102515330A (en) * | 2012-01-13 | 2012-06-27 | 重庆大学 | Preparation method of polymeric aluminum ferric sulfate flocculating agent (liquid) |
Non-Patent Citations (2)
| Title |
|---|
| 席改卿等: ""利用酸洗废液制备复合混凝剂及其应用实验研究"", 《河北大学学报(自然科学版)》 * |
| 王海峰等: ""工业废酸与高铁赤泥制取聚合氯化铝铁的实验研究"", 《贵州大学学报(自然科学版)》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104986805A (en) * | 2015-06-23 | 2015-10-21 | 河北冀泽生物科技有限公司 | Production method for polyferric chloride sulfate |
| CN110127774A (en) * | 2019-06-13 | 2019-08-16 | 常州润德石墨科技有限公司 | Utilize the method for preparing Polyferric Sulfate Flocculants with sludge in acid cleaning of steel tube |
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| Publication number | Publication date |
|---|---|
| CN103435107B (en) | 2015-04-29 |
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| CP01 | Change in the name or title of a patent holder |
Address after: 526238 Sha Lek Industrial Park, hi tech Development Zone, Guangdong, Zhaoqing Patentee after: ZHAOQING LINGYU ENVIRONMENTAL PROTECTION INDUSTRIAL CO.,LTD. Address before: 526238 Sha Lek Industrial Park, hi tech Development Zone, Guangdong, Zhaoqing Patentee before: ZHAOQING LINGYU ENVIRONMENTAL PROTECTION CO.,LTD. |
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Effective date of registration: 20180118 Address after: 511400 Guangzhou City, Guangzhou, Guangdong, Panyu District Panyu Avenue North 555 Tianan energy conservation science and Technology Park, one of the development building 919 Patentee after: GUANGZHOU BOFANG ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Address before: 526238 Sha Lek Industrial Park, hi tech Development Zone, Guangdong, Zhaoqing Patentee before: ZHAOQING LINGYU ENVIRONMENTAL PROTECTION INDUSTRIAL CO.,LTD. |
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Address after: 511400 one of 919 Tianan energy saving science and technology park development building, 555 North Panyu Avenue, Panyu District, Guangzhou City, Guangdong Province Patentee after: Guangdong Bofang Environmental Protection Technology Group Co.,Ltd. Address before: 511400 one of 919 Tianan energy saving science and technology park development building, 555 North Panyu Avenue, Panyu District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU BOFANG ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder |