CN204097280U - A kind of Sewage treatment systems - Google Patents
A kind of Sewage treatment systems Download PDFInfo
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- CN204097280U CN204097280U CN201420479067.3U CN201420479067U CN204097280U CN 204097280 U CN204097280 U CN 204097280U CN 201420479067 U CN201420479067 U CN 201420479067U CN 204097280 U CN204097280 U CN 204097280U
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Abstract
The utility model discloses a kind of Sewage treatment systems, comprise and connect pretreatment system and biochemical treatment system successively, described pretreatment system is made up of for the process pipeline of alkali decrement waste water, desized wastewater and dyeing waste-water respectively three tunnels, wherein alkali decrement waste water is connected with the first equalizing tank and acid out pond in turn, desized wastewater is connected with the second equalizing tank and Fenton oxidation pond in turn, and dyeing waste-water is connected with the 3rd equalizing tank and decolouring pond in turn; Described biochemical treatment system comprises the coagulative precipitation tank, hydrolysis acidification pool, anaerobic biofilter, aerobic biofilter and the settling tank that connect successively.The beneficial effects of the utility model are: by by the separately pre-treatment by alkali decrement waste water, desized wastewater and dyeing waste-water, avoid interacting of harmful toxic matter; Anaerobic biofilter and aerobic biofilter is adopted then to improve COD in waste water in addition
crclearance, ensure the COD of final outflow water
crmeet discharging standards.
Description
Technical field
The utility model relates to a kind of Sewage treatment systems, especially one can make COD
crthe Sewage treatment systems that content efficiently reduces.
Background technology
Along with the development of society; the environmental consciousness of people is more and more higher; the eternal lasting enterprise affecting descendants of environment protection; therefore sewage disposal has become the industrial most important thing; especially traditional printing and dyeing mill of heavy polluter, dyeing and weaving mill, cloth factory etc., shouldn't be careless especially to the process of this kind of enterprise sewage.
The waste water of the enterprise of the band dyeing and printing process such as printing and dyeing mill, dyeing and weaving mill, cloth factory generally comprises alkali decrement waste water, desized wastewater and dyeing waste-water, wherein main containing terylene hydrolyzate terephthalic acid, ethylene glycol etc. in alkali decrement waste water, wherein terephthaldehyde's acid content is up to 75%, alkali decrement waste water is pH value high (being greater than 12) not only, and organic concentration is high, its COD
crcan up to 90000mg/L, macromolecule organic and some dyes are difficult to directly biochemical and materializing strategy, and cause contaminated wastewater serious after mixing with other dyeing waste water, intractability strengthens.The water yield of desized wastewater is less, but Pollutant levels are high, wherein containing various slurry.Slurry degradation thing, fiber flock, starch alkali and various auxiliary agent, waste water is in alkalescence, and pH value is about 12, COD
cr, BOD
5be worth all very high.The water yield of dyeing waste-water is comparatively large, and water quality is different with fuel used difference, and wherein contain slurry, dyestuff, auxiliary agent, surface or meet an urgent need, generally in strong basicity, colourity is higher, COD
crcomparatively BOD
5much higher.Therefore cause the sewage of above-mentioned enterprise to form complicated and changeable, pollution level is high, and colourity and turbidity are all larger, and dissolved oxygen content is very low, COD
cr, BOD
5all very high, hazardness is very large, and process acquires a certain degree of difficulty.
This kind of enterprise brings a lot of inconvenience to treatment center of sewage.
Summary of the invention
Goal of the invention of the present utility model is: provide a kind of COD made in printing and dyeing mill's sewage
crcontent efficiently reduces, thus reaches the Sewage treatment systems of emission standard.
Scheme of the present utility model is:
A kind of Sewage treatment systems, comprise and connect pretreatment system and biochemical treatment system successively, it is characterized in that: described pretreatment system is made up of for the process pipeline of alkali decrement waste water, desized wastewater and dyeing waste-water respectively three tunnels, wherein alkali decrement waste water is connected with the first equalizing tank and acid out pond in turn, desized wastewater is connected with the second equalizing tank and Fenton oxidation pond in turn, and dyeing waste-water is connected with the 3rd equalizing tank and decolouring pond in turn; Described biochemical treatment system comprises the coagulative precipitation tank, hydrolysis acidification pool, anaerobic biofilter, aerobic biofilter and the settling tank that connect successively, be provided with aerating apparatus in above-mentioned aerobic biofilter, in anaerobic biofilter and aerobic biofilter, multiporous biological filler be all housed simultaneously; Described acid out pond, Fenton oxidation pond, decolouring pond are all connected with coagulative precipitation tank.
Above-mentioned Sewage treatment systems, the effect of three equalizing tanks in described pretreatment system is all control waste water being carried out to water quality and flow, the Pollutant levels in waste water reduced, and carry out certain adjustment to the pH value of waste water by adding dilution water.In in alkali decrement waste water, contain terephthalic acid, its band is toxic, therefore needs first to be separated out with acid out pond.Desized wastewater then adopts Fenton oxidation pond to be removed by harmful toxic matter wherein, can be beneficial to follow-up biochemical treatment.Dyeing waste-water is few because poisoning thing, as long as then first sloughed by the pigment in waste water.Three strands of waste water after pretreatment system process mix in coagulative precipitation tank, and coagulating agent is polymerize aluminum chloride.The macromolecular substance of difficult for biological degradation is then converted into the small-molecule substance of readily biodegradable by hydrolysis acidification pool, and changes into various organic acid, the biodegradability of increasing water quality.Anaerobic biofilter and aerobic biofilter then remove most COD in waste water
crwith a part of organism, the wherein HRT(hydraulic detention time of two biological filters) be 6h.
The beneficial effects of the utility model are:
By by the separately pre-treatment by alkali decrement waste water, desized wastewater and dyeing waste-water, avoid interacting of harmful toxic matter; Anaerobic biofilter and aerobic biofilter is adopted then to improve COD in waste water in addition
crclearance, ensure the COD of final outflow water
crmeet discharging standards.Sewage treatment systems designed by the utility model, is not only adapted at printing and dyeing mill of heavy polluter, dyeing and weaving mill, the use of Bu Changdeng enterprise, is also adapted at treatment center of sewage and uses.
Be also comprise a Pre-coagulation pond as the further improved plan of such scheme, this Pre-coagulation pond has three imports and connects described acid out pond, Fenton oxidation pond and decolouring pond respectively, has an outlet and be connected described coagulative precipitation tank.
Above-mentioned improvement project comprises one has Pre-coagulation step to the waste water after acid out pond, Fenton oxidation pond and the process of decolouring pond; the arranging of Pre-coagulation pond can make three strands of waste water form a preliminary mixing wherein; and then enter coagulative precipitation tank and process by original technique; pre-mixing, Pre-coagulation are not only played in Pre-coagulation pond; and can shock absorption be played; prevent from three strands of waste water from producing coagulative precipitation tank to impact, thus guarantee the coagulating sedimentation efficiency of coagulative precipitation tank.
Accompanying drawing explanation
Fig. 1 is the system construction drawing of the utility model wherein a kind of embodiment.
Fig. 2 is the system construction drawing of the another kind of embodiment of the utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 discloses a kind of Sewage treatment systems, comprise and connect pretreatment system and biochemical treatment system successively, described pretreatment system is made up of for the process pipeline of alkali decrement waste water, desized wastewater and dyeing waste-water respectively three tunnels, wherein alkali decrement waste water is connected with the first equalizing tank 1 and acid out pond 2 in turn, desized wastewater is connected with the second equalizing tank 3 and Fenton oxidation pond 4 in turn, and dyeing waste-water is connected with the 3rd equalizing tank 5 and decolouring pond 6 in turn; Described biochemical treatment system comprises the coagulative precipitation tank 7, hydrolysis acidification pool 8, anaerobic biofilter 9, aerobic biofilter 10 and the settling tank 11 that connect successively, be provided with aerating apparatus in above-mentioned aerobic biofilter, in anaerobic biofilter and aerobic biofilter, multiporous biological filler be all housed simultaneously.Described acid out pond 2, Fenton oxidation pond 4, decolouring pond 6 are all connected with coagulative precipitation tank 7.Wherein: described multiporous biological filler is spherical or oval, also can select other shapes of the prior art significantly, the basin's effective volume ratio of described anaerobic biofilter and aerobic biofilter is generally between 1:2 ~ 1:3.In concrete use procedure, alkali decrement waste water, desized wastewater and dyeing waste-water are carried out pre-treatment according to respective pre-treatment pipeline, then come together in coagulative precipitation tank 7, then composite waste is by after the process of hydrolysis acidification pool 8, anaerobic biofilter 9, aerobic biofilter 10 and settling tank 11, can ensure that the CODcr of water outlet meets discharging standards.
Fig. 2 discloses another kind of Sewage treatment systems, this Sewage treatment systems is on the basis of such scheme, added a Pre-coagulation pond 12, and this Pre-coagulation pond 12 has three imports and connects acid out pond 2, Fenton oxidation pond 4, decolouring pond 6 respectively, has a described coagulative precipitation tank 7 of outlet connection.The benefit of such setting comprises one has Pre-coagulation step to the waste water after acid out pond, Fenton oxidation pond and the process of decolouring pond; the arranging of Pre-coagulation pond can make three strands of waste water form a preliminary mixing wherein; and then enter coagulative precipitation tank and process by original technique; pre-mixing, Pre-coagulation are not only played in Pre-coagulation pond; and can shock absorption be played; prevent from three strands of waste water from producing coagulative precipitation tank to impact, thus guarantee the coagulating sedimentation efficiency of coagulative precipitation tank.Wherein: the volume in Pre-coagulation pond should be significantly less than coagulative precipitation tank, 1/10th of its volume desirable.
Above-described embodiment is only to design of the present utility model explanation for example, and significantly, the protection domain of this patent is not limited to above-described embodiment.
The various equivalent modifications or supplementary that those skilled in the art do above-described embodiment, all should fall into the protection domain of this patent.
Claims (2)
1. a Sewage treatment systems, comprise and connect pretreatment system and biochemical treatment system successively, it is characterized in that: described pretreatment system is made up of for the process pipeline of alkali decrement waste water, desized wastewater and dyeing waste-water respectively three tunnels, wherein alkali decrement waste water is connected with the first equalizing tank and acid out pond in turn, desized wastewater is connected with the second equalizing tank and Fenton oxidation pond in turn, and dyeing waste-water is connected with the 3rd equalizing tank and decolouring pond in turn; Described biochemical treatment system comprises the coagulative precipitation tank, hydrolysis acidification pool, anaerobic biofilter, aerobic biofilter and the settling tank that connect successively, be provided with aerating apparatus in above-mentioned aerobic biofilter, in anaerobic biofilter and aerobic biofilter, multiporous biological filler be all housed simultaneously; Described acid out pond, Fenton oxidation pond, decolouring pond are all connected with coagulative precipitation tank.
2. Sewage treatment systems according to claim 1, is characterized in that also comprising a Pre-coagulation pond, and this Pre-coagulation pond has three imports and connects described acid out pond, Fenton oxidation pond and decolouring pond respectively, has an outlet and be connected described coagulative precipitation tank.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420479067.3U CN204097280U (en) | 2014-08-23 | 2014-08-23 | A kind of Sewage treatment systems |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420479067.3U CN204097280U (en) | 2014-08-23 | 2014-08-23 | A kind of Sewage treatment systems |
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| Publication Number | Publication Date |
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| CN204097280U true CN204097280U (en) | 2015-01-14 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104710078A (en) * | 2015-03-12 | 2015-06-17 | 大连交通大学 | Underground integrated domestic sewage treatment device and method thereof |
| CN106336045A (en) * | 2016-11-17 | 2017-01-18 | 无锡明盛纺织机械有限公司 | Ozone oxidation-sedimentation-sand filtration-sulfonated coal filtering treatment process for alkali-decrement wastewater in printing and dyeing industry |
| CN106348550A (en) * | 2016-11-17 | 2017-01-25 | 无锡明盛纺织机械有限公司 | Anaerobic-aerobic-ozone oxidization-coal ash/furnace slag adsorption treatment process for alkali-minimization wastewater in printing and dyeing industry |
| CN106365359A (en) * | 2016-11-17 | 2017-02-01 | 无锡明盛纺织机械有限公司 | Ozonation-precipitation-sulfonated coal filtration-activated carbon filtration treating process for alkali amount-reduction wastewater in printing and dyeing industry |
| CN106430838A (en) * | 2016-11-17 | 2017-02-22 | 无锡明盛纺织机械有限公司 | Process for treatment of alkali-minimization wastewater in printing and dyeing industry |
| CN109019977A (en) * | 2018-08-31 | 2018-12-18 | 绍兴众聚环保科技有限公司 | A kind of dyeing alkali decrement waste water pretreating process |
-
2014
- 2014-08-23 CN CN201420479067.3U patent/CN204097280U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104710078A (en) * | 2015-03-12 | 2015-06-17 | 大连交通大学 | Underground integrated domestic sewage treatment device and method thereof |
| CN104710078B (en) * | 2015-03-12 | 2016-08-31 | 大连交通大学 | Underground integrated domestic sewage treatment device and method |
| CN106336045A (en) * | 2016-11-17 | 2017-01-18 | 无锡明盛纺织机械有限公司 | Ozone oxidation-sedimentation-sand filtration-sulfonated coal filtering treatment process for alkali-decrement wastewater in printing and dyeing industry |
| CN106348550A (en) * | 2016-11-17 | 2017-01-25 | 无锡明盛纺织机械有限公司 | Anaerobic-aerobic-ozone oxidization-coal ash/furnace slag adsorption treatment process for alkali-minimization wastewater in printing and dyeing industry |
| CN106365359A (en) * | 2016-11-17 | 2017-02-01 | 无锡明盛纺织机械有限公司 | Ozonation-precipitation-sulfonated coal filtration-activated carbon filtration treating process for alkali amount-reduction wastewater in printing and dyeing industry |
| CN106430838A (en) * | 2016-11-17 | 2017-02-22 | 无锡明盛纺织机械有限公司 | Process for treatment of alkali-minimization wastewater in printing and dyeing industry |
| CN109019977A (en) * | 2018-08-31 | 2018-12-18 | 绍兴众聚环保科技有限公司 | A kind of dyeing alkali decrement waste water pretreating process |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20151023 Address after: Hangzhou City, Zhejiang province 310011 Gongshu District Dengyun Road No. 518 West Building 2 times constant policy center room 415 Patentee after: HANGZHOU YOUCHUANG ENVIRONMENTAL ENGINEERING TECHNOLOGY CO., LTD. Address before: 202 room 2, unit 10, Fang Zhou garden, Xiacheng District, Zhejiang, Hangzhou, 310000 Patentee before: Gu Yunfeng |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Hangzhou City, Zhejiang province 310011 Gongshu District Dengyun Road No. 518 West Building 2 times constant policy center room 415 Patentee after: Zhejiang friend Environment Technology Co., Ltd. Address before: Hangzhou City, Zhejiang province 310011 Gongshu District Dengyun Road No. 518 West Building 2 times constant policy center room 415 Patentee before: HANGZHOU YOUCHUANG ENVIRONMENTAL ENGINEERING TECHNOLOGY CO., LTD. |