CN103723814B - Strongly-acid chemical wastewater treatment device and technique - Google Patents
Strongly-acid chemical wastewater treatment device and technique Download PDFInfo
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- CN103723814B CN103723814B CN201310689586.2A CN201310689586A CN103723814B CN 103723814 B CN103723814 B CN 103723814B CN 201310689586 A CN201310689586 A CN 201310689586A CN 103723814 B CN103723814 B CN 103723814B
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Abstract
The present invention relates to a kind of strongly-acid chemical wastewater treatment device and technique, belong to techniques of Dyeing Wastewater Treatment field.Treatment unit comprises settling tank, four fistfights be combined in and parts, water inlet pipe, rising pipe and effluent trough, mutually be not communicated with between four fistfights, settling tank, fistfight and effluent trough are installed in turn, water inlet pipe is positioned at the position that four fistfights are intersected, effluent trough communicates with fistfight, and rising pipe is positioned at the side-walls of effluent trough.The present invention carries out the process of different acid number wastewater from chemical industry by mutual disconnected fistfight, after the quality of waste water reaches index of correlation all in the lump, be aggregated in effluent trough, rising pipe on effluent trough is discharged, present invention, avoiding different acid number waste water and process large, the inefficient defect of caused intractability together, the waste water of different acid number is processed respectively, farthest can save the usage quantity for the treatment of agent and neutralizing agent.
Description
Technical field
The present invention relates to a kind of strongly-acid chemical wastewater treatment device and technique, belong to techniques of Dyeing Wastewater Treatment field.
Background technology
Under normal circumstances, chemical enterprise is when carrying out product synthesis and producing, and by sulfuric acid or the more impact of hydrochloric acid usage quantity, the wastewater from chemical industry acidity of generation is extremely strong, pH mostly below 3, close to 1 or also very common lower than 1.This type of strongly-acid wastewater from chemical industry is acid by force, pH value is low, colourity is high, biodegradability is poor, can cause enormous impact to Sewage treatment systems, causes sewage disposal plant effluent water quality to be difficult to up to standard, and obviously increases cost of sewage disposal; If process separately, need to use the medicament of ferrous sulfate as pretreatment technology in treating processes, intractability is very large and cost is very high (be singly add alkali to carry out neutralizing treatment, processing cost is just very high).
Summary of the invention
In order to defects such as the acid number overcoming the acid waste water existed in prior art are strong, colourity is high, difficult, first the present invention provides a kind of strongly-acid chemical wastewater treatment device that can be used for the reduction neutralizing treatment of strong acid wastewater from chemical industry, adopt the present invention settling tank and sludge recirculation system all can be arranged in acidification pool, can effectively reduce floor space and investment, decrease waterhead, make the also corresponding reduction of the sludge reflux cost after mud-water separation.
For achieving the above object, the technical scheme taked of the present invention is as follows:
Strongly-acid chemical wastewater treatment device, comprise settling tank, four fistfights be combined in and parts, water inlet pipe, rising pipe and effluent trough, mutually be not communicated with between four fistfights, settling tank, fistfight and effluent trough are installed in turn, water inlet pipe is positioned at the position that four fistfights are intersected, and effluent trough communicates with fistfight, and rising pipe is positioned at the side-walls of effluent trough, fistfight is provided with perforated pipe in the one side of settling tank, stirs for airflow is fashionable.
Further, as preferably:
Between described settling tank and fistfight, the dividing plate with filtering function is installed.As preferably, described dividing plate is evenly provided with several filter openings.
Described settling tank is provided with triangle fixed block, makes settling tank structure more firm.As preferably, described triangle fixed block has two, is symmetricly set in the both sides of settling tank.
Described perforated pipe is provided with two, lays respectively at above and below water inlet pipe.
During described fistfight is combined into and parts be square, its length of side L
1for 4000mm; Distance L between two triangle fixed blocks
2for 3000mm, width H
1for 1500mm; Effluent trough is square, its length of side L
3for 4600mm.
Secondly the present invention provides a kind of technique adopting said apparatus to carry out strongly-acid chemical wastewater treatment, and concrete scheme is as follows:
Strongly-acid chemical wastewater treatment technique, is incorporated into the strongly-acid wastewater from chemical industry of different acid number respectively in different fistfights, and adds neutralizing agent in fistfight, after neutralizing treatment, waste water in fistfight enters effluent trough, after this leaves standstill balance, discharges and collect through water shoot.
Further, as preferably:
Described neutralizing agent is one or more the mixture in iron plate, iron wire, iron plane flower or iron powder foam.
Described strongly-acid refer to pH lower than 3 wastewater from chemical industry, the neutralizing treatment time is 2-3 hour, and the addition of neutralizing agent is 50-250mg/l.
Introduce in common dyeing waste water and sanitary wastewater treating pond, as the common dyeing waste water of chemicals treatment and sanitary wastewater after the wastewater collection that described water shoot is discharged.
Apply the present invention to the pre-treatment of strongly-acid wastewater from chemical industry, strongly-acid wastewater from chemical industry is incorporated in the neutralizing agents such as scrap iron sheet, iron wire, iron plane flower and discarded iron powder foam are housed and in parts by water inlet pipe, strongly-acid wastewater from chemical industry and neutralizing agent carry out contact reacts, reaction times controls at 2 to 3 hours, 50 to 200mg/l ferrous ion can be generated in waste water, by reacted waste water, be pooled in effluent trough, the rising pipe arranged on effluent trough enters in follow-up wastewater treatment equipment.
In the present invention, the process of different acid number wastewater from chemical industry is carried out by mutual disconnected fistfight, after the quality of waste water reaches index of correlation all in the lump, be aggregated in effluent trough, rising pipe on effluent trough is discharged, present invention, avoiding different acid number waste water and process large, the inefficient defect of caused intractability together, the waste water of different acid number is processed respectively, farthest can save the usage quantity for the treatment of agent and neutralizing agent; Meanwhile, above and below water inlet pipe, be respectively arranged with perforated pipe gas distribution, stir when passing air into, the triangle fixed block that settling tank two ends are arranged, make settling tank structure more firm.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is A-A direction schematic diagram in Fig. 1;
Fig. 3 is B-B direction schematic diagram in Fig. 1;
Fig. 4 is the structural representation (in Fig. 1 C-C direction schematic diagram) of Fig. 1 median septum;
Fig. 5 is size marking figure of the present invention;
Fig. 6 is processing technological flow figure of the present invention.
Number in the figure: 1. water inlet pipe; 2a. perforated pipe one; 2b. perforated pipe two; 3. grapple; 4. dividing plate; 4a. filter opening; 5. settling tank; 6. rising pipe; 7. effluent trough; 8. triangle fixed block.
Embodiment
Embodiment 1
The present embodiment strongly-acid chemical wastewater treatment device, composition graphs 1, Fig. 2 and Fig. 3, comprise settling tank 5, four fistfight 3 be combined in and parts, water inlet pipe 1, rising pipe 6 and effluent trough 7, mutually be not communicated with between four fistfights 3, settling tank 5, in and parts and effluent trough 7 install in turn, water inlet pipe 1 is positioned at the position that four fistfights 3 are intersected, and effluent trough 7 communicates with fistfight 3, and rising pipe 6 is positioned at the side-walls of effluent trough 7.Wherein, grapple is provided with two perforated pipes in the one side of settling tank, and namely perforated pipe one 2a and perforated pipe two 2b, perforated pipe one 2a and perforated pipe two 2b lay respectively at above and below water inlet pipe 1, stir when passing air into; Composition graphs 5, fistfight 3 be combined in and parts be square, its length of side L
1for 4000mm, the distance L between two triangle fixed blocks 8
2for 3000mm, width H
1for 1500mm, effluent trough 7 is square, its length of side L
3for 4600mm.
Apply the present invention to the pre-treatment of strongly-acid wastewater from chemical industry, composition graphs 6, strongly-acid wastewater from chemical industry is incorporated in the neutralizing agents such as scrap iron sheet, iron wire, iron plane flower and discarded iron powder foam are housed and in parts by water inlet pipe 1, strongly-acid wastewater from chemical industry and neutralizing agent carry out contact reacts, reaction times controls at 2 to 3 hours, 50 to 200mg/l ferrous ion can be generated in waste water, by reacted waste water, be pooled in effluent trough 7, the rising pipe 6 arranged on effluent trough 7 enters in follow-up common printing and dyeing wastewater processing equipment.
In the present invention, by mutual disconnected fistfight 3 carry out acid number lower than 3 the process of different wastewater from chemical industry, the neutralizing treatment time is 2-3 hour, the addition of neutralizing agent is 50-250mg/l, after the quality of waste water reaches index of correlation all in the lump, be aggregated in effluent trough 7, rising pipe 6 on effluent trough 7 is discharged, present invention, avoiding different acid number waste water and process large, the inefficient defect of caused intractability together, the waste water of different acid number is processed respectively, farthest can save the usage quantity for the treatment of agent and neutralizing agent; Meanwhile, above and below water inlet pipe 1, be respectively arranged with perforated pipe one 2a and perforated pipe two 2b gas distribution, stir when passing air into.
Embodiment 2
The present embodiment is identical with principle of work with the setting of embodiment 1, and difference is: composition graphs 4, settling tank 5 and fistfight 3 formed in and be provided with dividing plate 4 between parts, this dividing plate 4 is evenly provided with several filter openings 4a.
Claims (4)
1. strongly-acid chemical wastewater treatment device, it is characterized in that: comprise settling tank, during four fistfights are combined into and parts, water inlet pipe, rising pipe and effluent trough, mutually be not communicated with between four fistfights, settling tank, fistfight and effluent trough are installed in turn, water inlet pipe is positioned at the position that four fistfights are intersected, effluent trough communicates with fistfight, rising pipe is positioned at the side-walls of effluent trough, fistfight is provided with perforated pipe in the one side of settling tank, perforated pipe is provided with two, lay respectively at above and below water inlet pipe, stir when passing air into, between settling tank and fistfight, the dividing plate with filtering function is installed, dividing plate is evenly provided with several filter openings, settling tank is provided with triangle fixed block, triangle fixed block has two, be symmetricly set in the both sides of settling tank, for fixing settling tank.
2. strongly-acid chemical wastewater treatment device as claimed in claim 1, is characterized in that: during described described fistfight is combined into and parts be square, its length of side L
1for 4000mm; Distance L between two triangle fixed blocks
2for 3000mm, width H
1for 1500mm; Effluent trough is square, its length of side L
3for 4600mm.
3. adopt the treatment unit described in any one of claim 1-2 to carry out the treatment process of strongly-acid wastewater from chemical industry, it is characterized in that: by pH lower than 3 different acid number wastewater from chemical industry be incorporated in different fistfights respectively, and neutralizing agent is added in fistfight, the neutralizing treatment time is 2-3 hour, the addition of neutralizing agent is 50-250mg/l, and after neutralizing treatment, the waste water in fistfight enters effluent trough, after this leaves standstill balance, discharge through water shoot and collect.
4. the treatment process of strongly-acid wastewater from chemical industry as claimed in claim 3, is characterized in that: described neutralizing agent is one or more the mixture in iron plate, iron wire, iron plane flower or iron powder foam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310689586.2A CN103723814B (en) | 2013-12-17 | 2013-12-17 | Strongly-acid chemical wastewater treatment device and technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310689586.2A CN103723814B (en) | 2013-12-17 | 2013-12-17 | Strongly-acid chemical wastewater treatment device and technique |
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| Publication Number | Publication Date |
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| CN103723814A CN103723814A (en) | 2014-04-16 |
| CN103723814B true CN103723814B (en) | 2015-07-29 |
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| CN201310689586.2A Expired - Fee Related CN103723814B (en) | 2013-12-17 | 2013-12-17 | Strongly-acid chemical wastewater treatment device and technique |
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| CN112777874A (en) * | 2021-01-20 | 2021-05-11 | 喻婕 | Method for treating acidic wastewater containing heavy metals |
Citations (7)
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|---|---|---|---|---|
| LV12521A (en) * | 2000-05-03 | 2000-08-20 | Auto Starts Sia | Neutralisation process of waste accumulators' acid |
| CN1590304A (en) * | 2003-09-05 | 2005-03-09 | 李景钞 | Comprehensive utilization method of ferrous sulfate waste water and waste iron scraps |
| CA2717088A1 (en) * | 2007-09-13 | 2009-03-26 | Rheinkalk Gmbh | Method of raising the ph of acidic bodies of water |
| CN201883002U (en) * | 2010-11-04 | 2011-06-29 | 美舒环保科技（北京）有限公司 | Air operated aeration cyclic neutralizing and settling device |
| CN202415304U (en) * | 2011-11-11 | 2012-09-05 | 青岛水清木华环境工程有限公司 | Wastewater treatment device for electroplating concentration area |
| CN203212375U (en) * | 2013-03-20 | 2013-09-25 | 河南顺圆水处理技术有限公司 | Neutralization reactor and neutralization reaction device using same |
| CN203683191U (en) * | 2013-12-17 | 2014-07-02 | 绍兴水处理发展有限公司 | Strongly acidic chemical wastewater treater |
-
2013
- 2013-12-17 CN CN201310689586.2A patent/CN103723814B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LV12521A (en) * | 2000-05-03 | 2000-08-20 | Auto Starts Sia | Neutralisation process of waste accumulators' acid |
| CN1590304A (en) * | 2003-09-05 | 2005-03-09 | 李景钞 | Comprehensive utilization method of ferrous sulfate waste water and waste iron scraps |
| CA2717088A1 (en) * | 2007-09-13 | 2009-03-26 | Rheinkalk Gmbh | Method of raising the ph of acidic bodies of water |
| CN201883002U (en) * | 2010-11-04 | 2011-06-29 | 美舒环保科技（北京）有限公司 | Air operated aeration cyclic neutralizing and settling device |
| CN202415304U (en) * | 2011-11-11 | 2012-09-05 | 青岛水清木华环境工程有限公司 | Wastewater treatment device for electroplating concentration area |
| CN203212375U (en) * | 2013-03-20 | 2013-09-25 | 河南顺圆水处理技术有限公司 | Neutralization reactor and neutralization reaction device using same |
| CN203683191U (en) * | 2013-12-17 | 2014-07-02 | 绍兴水处理发展有限公司 | Strongly acidic chemical wastewater treater |
Non-Patent Citations (1)
| Title |
|---|
| 催化铁内电解法处理酸性化工废水后混合印染废水进行混凝处理的研究;张俊琪等;《水处理技术》;20120930;第38卷(第9期);第1.1-1.3节、第2.1-2.2节，图1和3 * |
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| CN103723814A (en) | 2014-04-16 |
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