CN202379830U - Treatment device for coking wastewater - Google Patents

Treatment device for coking wastewater Download PDF

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Publication number
CN202379830U
CN202379830U CN201120549633XU CN201120549633U CN202379830U CN 202379830 U CN202379830 U CN 202379830U CN 201120549633X U CN201120549633X U CN 201120549633XU CN 201120549633 U CN201120549633 U CN 201120549633U CN 202379830 U CN202379830 U CN 202379830U
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China
Prior art keywords
outlet
water
pond
chemical waste
coking chemical
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Expired - Fee Related
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CN201120549633XU
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Chinese (zh)
Inventor
许钢平
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许钢平
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Priority to CN201120549633XU priority Critical patent/CN202379830U/en
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Publication of CN202379830U publication Critical patent/CN202379830U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model relates to a treatment device for wastewater, in particular relates to a device for treating coking wastewater. According to the utility model, a coking wastewater input pipe is connected with an inlet of an oxidizing-flocculating pool; an outlet of the oxidizing-flocculating pool is connected with an inlet of an efficient air floating pool; an outlet of the efficient air floating pool is connected with an inlet of a degassing pool; an outlet of the degassing pool is connected with an inlet of a mixed ions filter; an outlet of the mixed ions filter is connected with a high-pressure pump; an outlet of the high-pressure pump is connected with a reverse osmosis film device; and two outlets of the reverse osmosis film device respectively discharge fresh water and thick water. The treatment device for wastewater related by the utility model has the advantages that zero discharge of coking wastewater is wholly realized, pollutant emission amounts are greatly reduced; production water is saved; the problem of coking wastewater pollution is thoroughly solved; and the operations are simple. The treatment device for wastewater can be used in a large number of domestic coking plants for effectively controlling pollution problems.

Description

A kind of treatment unit of coking chemical waste water
Technical field
The utility model relates to a kind of treatment unit of waste water, refers in particular to a kind of treatment unit that coking chemical waste water is carried out zero release.
Technical background
Coking chemical waste water mainly contains heterogeneous ring compound of phenols, polycyclc aromatic compound and nitrogenous, oxygen, sulphur etc., is a kind of typical refractory organic industrial sewage.In recent decades; China has carried out a large amount of research to coking chemical waste water and has explored and developed some improvement technology, also has some problems simultaneously, like two sections biochemistry, add growth hormone and back coagulation technology etc. the COD in the reduction water has all been obtained certain effect; But the COD in the water after handling is generally about 300mg/l; Can only reach secondary discharge standard, bio-denitrification technology greatly reduces ammonia-nitrogen content in the water, but wants up to standard still very difficult; A lot of coke-oven plants have also considered comprehensive utilization; The portion water reuse is done quenching, dedusting make up water, coal works watering etc. reducing total amount of sewage discharge to greatest extent, but the water yield of reuse is limited by each side, account for the proportion of Total Water and little.
The utility model content
The utility model proposes a kind of treatment unit of effective realization Zero-discharge coked wastewater to the problem that exists in the prior art.
The present invention is achieved through following technical proposals:
A kind of treatment unit of coking chemical waste water; It is characterized in that: the coking chemical waste water input tube is connected with the import of oxidizing, flocculating pond, and the outlet in oxidizing, flocculating pond is connected with the import in efficient air-floating pond, and the outlet in efficient air-floating pond is connected with the import in degassing pond; The outlet in degassing pond is connected with the import of hybrid ionic strainer; The outlet of hybrid ionic strainer is connected with HPP, the high pressure pump outlet with reverse osmosis membrane apparatus be connected, the outlet of reverse osmosis membrane apparatus is divided into two; One is to connect the fresh water interface that sees through film to feed low pure water pond, and another is that concentrated solution outlet is connected with afterbay as coke quenching water.
As preferably, be connected with flocculation agent adding apparatus, coagulant aids adding apparatus in the treatment unit of above-mentioned a kind of coking chemical waste water on the inlet pipe in oxidizing, flocculating pond.Can better guarantee be provided to the thorough processing in the wastewater treatment process,, realize combining of objectionable impurities and chemical agent in the waste water, finally can dispose fully, and become possibility for the load reduction of ensuing device through the interpolation of chemical agent.
As preferably, be connected with an intermediate water tank in the middle of the treatment unit middle filtrator of above-mentioned a kind of coking chemical waste water and the HPP, intermediate water tank also is connected with a water quality stabilizer supplemental tank.Can protect the work-ing life of HPP like this,, can protect HPP when sucking water, can not cause cavitation erosion through the buffering of intermediate water tank.
As preferably, reverse osmosis membrane apparatus is greater than 97% device to the clearance of ammonia nitrogen and salt in the treatment unit of above-mentioned a kind of coking chemical waste water.
The device of the utility model is on former biochemical processing basis, coking chemical waste water to be done advanced treatment, behind employing oxidisability active flocculant coagulation air-float and the hybrid ionic strainer, reduces COD and SS; Reduce the probability that film pollutes to greatest extent, and adopt advanced ammonia nitrogen removal membrane technique, can realize separating of ammonia nitrogen and water; The fresh water part of handling caudacoria can reach the cycle water requirement; Circulating condensing water is made in reuse, and condensed water partly can be used as coke quenching water, realizes the zero release of coking chemical waste water.
Beneficial effect of the present invention: through the use of the utility model, can realize Zero-discharge coked wastewater, significantly reduce the disposal of pollutants total amount; Practiced thrift water of productive use; Thoroughly solve the coking chemical waste water pollution problem, reclaimed precious water resource, belonged to the recycling economy category.
Description of drawings
Each member connection structure synoptic diagram of Fig. 1 the utility model
1, oxidizing, flocculating pond 2, efficient air-floating pond 3, degassing pond 4, hybrid ionic strainer 5, intermediate water tank 6, HPP 7, reverse osmosis membrane apparatus 8, low pure water pond 9, afterbay 10, flocculation agent adding apparatus 11, coagulant aids adding apparatus 12, water quality stabilizer supplemental tank
Embodiment
Below in conjunction with accompanying drawing, the enforcement of the utility model is specified:
Embodiment 1
At first, according to structure shown in the accompanying drawing 1, the treatment unit of a coking chemical waste water is installed; Wherein the coking chemical waste water input tube is connected with 1 import of oxidizing, flocculating pond, and the outlet in oxidizing, flocculating pond 1 is connected with the import in efficient air-floating pond 2, and the outlet in efficient air-floating pond 2 is connected with the import in degassing pond 3; The outlet in degassing pond 3 is connected with the import of hybrid ionic strainer 4; The outlet of hybrid ionic strainer 4 is connected with HPP 6, the outlet of HPP 6 with reverse osmosis membrane apparatus 7 be connected, the outlet of reverse osmosis membrane apparatus 7 is divided into two; One is to connect the fresh water interface that sees through film to feed low pure water pond 8, and another is that concentrated solution outlet is connected with afterbay 9 as coke quenching water; On the inlet pipe in oxidizing, flocculating pond 1, be connected with flocculation agent adding apparatus 10, coagulant aids adding apparatus 11; In the middle of strainer 4 and HPP 6, be connected with an intermediate water tank 5, intermediate water tank 5 also is connected with a water quality stabilizer supplemental tank 12; Wherein employed reverse osmosis membrane apparatus 7 is greater than 97% device to the clearance of ammonia nitrogen and salt.
In the utility model, be COD the coking chemical waste water of 350mg/l, place oxidizing, flocculating pond 1, add iron(ic)chloride 0.9g/L, add coagulant aids 11 SEPIGEL 305s again, its content is 8mg/L, mixes 20min; Get into efficient air-floating pond 2 to mixed coking chemical waste water more then, gas vol: amount of liquid=13: 100, remove the SS in the coking chemical waste water; The coking chemical waste water that has gone out efficient air-floating pond 2 gets into degassing pond 3, leaves standstill 15min; The coking chemical waste water that comes out from degassing pond pumps into negative and positive mixed ion exchanger 4 by topping-up pump, and mixed ion exchanger 4 is the mixed beds that are filled with the yin, yang resin, and WP is 0.3Mpa, and exchange velocity is 15m/h; The coking chemical waste water that goes out negative and positive mixed ion exchanger 4 gets into intermediate water tank 5, and is for use, and adds water quality stabilizer 12, specifically is ammonia nitrogen complexing agent HCL, and content is 3mg/L, in the general water quality stabilizer supplemental tank 12 corresponding stablizer arranged; The coking chemical waste water that goes out intermediate water tank 5 is under the condition of 1.8Mpa at working pressure by HPP 6; Pump into reverse osmosis membrane apparatus 7; Wherein reverse osmosis membrane is 98% to the clearance of ammonia nitrogen and salt, and the processing that goes out behind the reverse osmosis membrane apparatus 7 is divided into two strands, and one is that the fresh water that sees through film gets into low pure water pond 8 as circulation; Another strand is that liquid concentrator gets into tail water also in 9, and is subsequent use as coke quenching water.The water quality that gets in the low pure water pond 8 meets as other process waters such as water of condensation fully.

Claims (4)

1. the treatment unit of a coking chemical waste water; It is characterized in that: the coking chemical waste water input tube is connected with oxidizing, flocculating pond (1) import; The outlet in oxidizing, flocculating pond (1) is connected with the import of efficient air-floating pond (2); The outlet in efficient air-floating pond (2) is connected with the import in degassing pond (3), and the outlet in degassing pond (3) is connected with the import of hybrid ionic strainer (4), and the outlet of hybrid ionic strainer (4) is connected with HPP (6); The outlet of HPP (6) with reverse osmosis membrane apparatus (7) be connected; The outlet of reverse osmosis membrane apparatus (7) is divided into two, and one is to connect the fresh water interface that sees through film to feed low pure water pond (8), and another is that concentrated solution outlet is connected with afterbay (9) as coke quenching water.
2. the treatment unit of a kind of coking chemical waste water according to claim 1 is characterized in that: on the inlet pipe of oxidizing, flocculating pond (1), be connected with flocculation agent adding apparatus (10), coagulant aids adding apparatus (11).
3. the treatment unit of a kind of coking chemical waste water according to claim 1 is characterized in that: in the middle of strainer (4) and HPP (6), be connected with an intermediate water tank (5), intermediate water tank (5) also is connected with a water quality stabilizer supplemental tank (12).
4. the treatment unit of a kind of coking chemical waste water according to claim 1 is characterized in that: reverse osmosis membrane apparatus (7) for to the clearance of ammonia nitrogen and salt greater than 97% device.
CN201120549633XU 2011-12-25 2011-12-25 Treatment device for coking wastewater Expired - Fee Related CN202379830U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120549633XU CN202379830U (en) 2011-12-25 2011-12-25 Treatment device for coking wastewater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201120549633XU CN202379830U (en) 2011-12-25 2011-12-25 Treatment device for coking wastewater

Publications (1)

Publication Number Publication Date
CN202379830U true CN202379830U (en) 2012-08-15

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ID=46628347

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201120549633XU Expired - Fee Related CN202379830U (en) 2011-12-25 2011-12-25 Treatment device for coking wastewater

Country Status (1)

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CN (1) CN202379830U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109052595A (en) * 2018-08-20 2018-12-21 上海优帛环境技术有限公司 A kind of compound coagulant quickly handled for quenching waste water and its application method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109052595A (en) * 2018-08-20 2018-12-21 上海优帛环境技术有限公司 A kind of compound coagulant quickly handled for quenching waste water and its application method

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120815

Termination date: 20121225