CN202038946U - Wastewater treatment device in acrylic production process - Google Patents

Wastewater treatment device in acrylic production process Download PDF

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Publication number
CN202038946U
CN202038946U CN2011201136636U CN201120113663U CN202038946U CN 202038946 U CN202038946 U CN 202038946U CN 2011201136636 U CN2011201136636 U CN 2011201136636U CN 201120113663 U CN201120113663 U CN 201120113663U CN 202038946 U CN202038946 U CN 202038946U
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China
Prior art keywords
tank
pond
water
aerobic
water outlet
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Expired - Lifetime
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CN2011201136636U
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Chinese (zh)
Inventor
叶国祥
严月根
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Bored environmental group Limited by Share Ltd
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Nanjing Institute of Geography and Limnology of CAS
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Priority to CN2011201136636U priority Critical patent/CN202038946U/en
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Abstract

The utility model relates to a wastewater treatment device in the acrylic production process, which is characterized in that the wastewater treatment device mainly comprises a grate, an adjusting tank, a pre-oxidation tank, a hydrolysis tank, a denitrification tank, an aerobic tank and a sedimentation tank, wherein the grate is arranged at a wastewater inlet of the adjusting tank; a water outlet of the adjusting tank is connected with a water inlet of the pre-oxidation tank through a pump; a water outlet of the pre-oxidation tank is connected with a water inlet of the hydrolysis tank; an overflow water outlet is arranged at the upper part of the side surface of the hydrolysis tank and is connected with a water inlet of the denitrification tank; a water outlet of the denitrification tank is connected with a water inlet of the aerobic tank; and a water outlet of the aerobic tank is connected with a water inlet of the sedimentation tank. The wastewater in the high-concentration process reaches the nanotube discharge requirements after being treated by the wastewater treatment device. The wastewater treatment device works stably, and has high efficiency and low running cost, effectively solves the problem of biological wastewater toxicity in the traditional treatment method and is simultaneously suitable for biological treatment of similar high-sulfur and high-nitrogen organic wastewater.

Description

Acrylic fiber production process processing wastewater treatment unit
Technical field
The present invention relates to a kind of acrylic fiber production process processing wastewater treatment unit, comprise grid filtration, equalizing tank, preaeration, acidication, hold concurrently oxygen denitrification and biological treatment device such as aerobic, belong to field of environment engineering.
Technical background
There are biological difficult price reduction materials such as organic sulfonate in acrylic fiber production process processing wastewater pollutent composition complexity, toxicity height, also have Biostatic components such as sulfate radical and inferior sulfate radical in addition in the waste water.In the prior art, the method for handling acrylic fiber chemical waste water mainly contains: coagulation-precipitation, coagulation-air supporting, suspension active sludge, A/O biomembrance process, biological filtering tower combined working, electrolytic process etc.The system device of these technologies, complex structure are unfavorable for operation and management, and the acrylic fibers processing wastewater is difficult to reach emission request.
The utility model content
For overcoming the defective of prior art, technical purpose of the present utility model has been to provide a kind of new acrylic fiber production process processing wastewater treatment unit, make that this device operability and security of system are good, solve the acrylic fibers processing wastewater problem completely that is difficult to carry out a biological disposal upon, reduced cost for wastewater treatment again.
The technical solution of the utility model is:
A kind of acrylic fiber production process processing wastewater treatment unit is characterized in that mainly being made up of grid, equalizing tank, preoxidation pond, hydrolytic tank, denitrification pond, Aerobic Pond, settling tank; Wherein, grid is arranged on the water intake place of equalizing tank, and the equalizing tank water outlet is by the water-in in pump connection preoxidation pond, and the water outlet in preoxidation pond connects the water-in of hydrolytic tank; The top, side of hydrolytic tank is provided with and overflows the mouth of a river, overflows the mouth of a river and is connected with denitrification pond water-in; Denitrification pond water outlet is connected with the Aerobic Pond water-in, and the Aerobic Pond water outlet is connected with the settling tank water-in.
Wherein, described preoxidation pond also is provided with settling tank mud refluxing opening; Described settling tank go out the mud mouth connects the preoxidation pond by pump settling tank mud refluxing opening.
The diving whipping appts is installed in described hydrolytic tank and bottom, denitrification pond.
Described denitrification pond also is provided with the nitrification liquid reflux inlet; Aerobic Pond also is provided with the nitrification liquid bypass outlet; The nitrification liquid bypass outlet of Aerobic Pond connects the nitrification liquid reflux inlet in denitrification pond by pump.
Described Aerobic Pond is divided into one section Aerobic Pond and two sections Aerobic Ponds, the Aerobic Pond water-in is one section Aerobic Pond water-in, one section Aerobic Pond water outlet is two sections Aerobic Pond water-ins, two sections Aerobic Pond water outlets are the Aerobic Pond water outlet, and wherein the water-in of one section Aerobic Pond and water outlet are provided with the isolation screen cloth.
Described settling tank water-in is provided with the inlet distribution device.
The beneficial effects of the utility model are:
This utility model has adopted grid, equalizing tank, preoxidation pond, hydrolysis acidification pool, hold concurrently oxygen denitrification pond and aerobic nitrification tank series connection processing waste water, S, C, N classification are removed, improved the biological treatment performance, water outlet COD and TN are lower, based on biotechnology, technical process is reasonable, and running cost is low.After double oxygen is handled two sections aerobic process are set, first section adds bio-carrier, improves activated sludge concentration, and waste water COD is effectively removed.System works is stable, and treatment effect is good.The utility model is equally applicable to the biological treatment of other high-sulfurs, high nitrogen organic waste water.
Description of drawings
Fig. 1 is the utility model synoptic diagram.
Embodiment
As shown in Figure 1, acrylic fiber production process processing wastewater treatment unit described in the utility model mainly is made up of grid, equalizing tank, preoxidation pond, hydrolytic tank, denitrification pond, Aerobic Pond, settling tank; Wherein, grid is arranged on the water intake place of equalizing tank, and the equalizing tank water outlet is by the water-in in pump connection preoxidation pond, and the water outlet in preoxidation pond connects the water-in of hydrolytic tank; The top, side of hydrolytic tank is provided with and overflows the mouth of a river, overflows the mouth of a river and is connected with denitrification pond water-in; Denitrification pond water outlet is connected with the Aerobic Pond water-in, and the Aerobic Pond water outlet is connected with the settling tank water-in.
Wherein, described preoxidation pond also is provided with settling tank mud refluxing opening; Described settling tank go out the mud mouth connects the preoxidation pond by pump settling tank mud refluxing opening.
The diving whipping appts is installed in described hydrolytic tank and bottom, denitrification pond.
Described denitrification pond also is provided with the nitrification liquid reflux inlet; Aerobic Pond also is provided with the nitrification liquid bypass outlet; The nitrification liquid bypass outlet of Aerobic Pond connects the nitrification liquid reflux inlet in denitrification pond by pump.
Described Aerobic Pond is divided into one section Aerobic Pond and two sections Aerobic Ponds, the Aerobic Pond water-in is one section Aerobic Pond water-in, one section Aerobic Pond water outlet is two sections Aerobic Pond water-ins, two sections Aerobic Pond water outlets are the Aerobic Pond water outlet, wherein the water-in of one section Aerobic Pond and water outlet are provided with the isolation screen cloth, and add the carrier organism filler at one section Aerobic Pond.
Described settling tank water-in is provided with the inlet distribution device.
During operation, waste water is promoted to the preoxidation pond by lift pump inherent regulation pond, and the preoxidation pond also is provided with settling tank mud refluxing opening; When system moved, settling tank mud was through mud reflux input preoxidation pond, and returned sluge replenishes preoxidation pond sludge concentration.Hydrolytic tank is provided with the diving whipping appts and overflows the mouth of a river, overflows the mouth of a river and is connected with denitrification pond water-in.The macromole organic pollutant is broken down into small-molecule substance in hydrolytic tank.The denitrification pond is provided with diving whipping appts and water outlet, also is provided with one section aerobic nitrification liquid reflux, and double oxygen reaction takes place for acidication water outlet and aerobic nitrification liquid, removes the nitrogen in the waste water.The oxygen denitrification water outlet of holding concurrently is connected with one section aerobic nitrification pond water-in, and the centre is provided with the isolation screen cloth, and one section aerobic nitrification pond adds the carrier organism filler.One section aerobic nitrification pond water outlet is connected with two sections aerobic nitrification pond water-ins, and the centre is provided with the isolation screen cloth.Two sections aerobic nitrification pond water outlets are connected with the settling tank water-in, and the settling tank water-in is provided with the inlet distribution system.It is the loss that prevents the carrier organism filler that one section aerobic nitrification pond entery and delivery port is provided with the purpose of isolating screen cloth, and one section, two sections aerobic nitrification ponds are provided with blast aeration system simultaneously, and organism exists in the waste water.The oxygen denitrification water outlet of holding concurrently is progressively decomposed by microorganism in one section, two sections aerobic nitrification ponds, generates carbonic acid gas and water in microbial reproduction.Waste water after carrying out a biological disposal upon in settling tank solid-liquid separation, part mud is back to preaeration tank, replenishes the preaeration tank sludge concentration, excess sludge discharge is to sludge treating system, waste water is to discharging the pond.

Claims (6)

1. an acrylic fiber production process processing wastewater treatment unit is characterized in that mainly being made up of grid, equalizing tank, preoxidation pond, hydrolytic tank, denitrification pond, Aerobic Pond, settling tank; Wherein, grid is arranged on the water intake place of equalizing tank, and the equalizing tank water outlet is by the water-in in pump connection preoxidation pond, and the water outlet in preoxidation pond connects the water-in of hydrolytic tank; The top, side of hydrolytic tank is provided with and overflows the mouth of a river, overflows the mouth of a river and is connected with denitrification pond water-in; Denitrification pond water outlet is connected with the Aerobic Pond water-in, and the Aerobic Pond water outlet is connected with the settling tank water-in.
2. acrylic fiber production process processing wastewater treatment unit according to claim 1 is characterized in that described preoxidation pond also is provided with settling tank mud refluxing opening; Described settling tank go out the mud mouth connects the preoxidation pond by pump settling tank mud refluxing opening.
3. acrylic fiber production process processing wastewater treatment unit according to claim 1 is characterized in that described hydrolytic tank and denitrification pond bottom installation diving whipping appts.
4. acrylic fiber production process processing wastewater treatment unit according to claim 1 is characterized in that described denitrification pond also is provided with the nitrification liquid reflux inlet; Aerobic Pond also is provided with the nitrification liquid bypass outlet; The nitrification liquid bypass outlet of Aerobic Pond connects the nitrification liquid reflux inlet in denitrification pond by pump.
5. acrylic fiber production process processing wastewater treatment unit according to claim 1, it is characterized in that described Aerobic Pond is divided into one section Aerobic Pond and two sections Aerobic Ponds, the Aerobic Pond water-in is one section Aerobic Pond water-in, one section Aerobic Pond water outlet is two sections Aerobic Pond water-ins, two sections Aerobic Pond water outlets are the Aerobic Pond water outlet, and wherein the water-in of one section Aerobic Pond and water outlet are provided with the isolation screen cloth.
6. acrylic fiber production process processing wastewater treatment unit according to claim 1 is characterized in that described settling tank water-in is provided with the inlet distribution device.
CN2011201136636U 2011-04-18 2011-04-18 Wastewater treatment device in acrylic production process Expired - Lifetime CN202038946U (en)

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CN2011201136636U CN202038946U (en) 2011-04-18 2011-04-18 Wastewater treatment device in acrylic production process

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Application Number Priority Date Filing Date Title
CN2011201136636U CN202038946U (en) 2011-04-18 2011-04-18 Wastewater treatment device in acrylic production process

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CN202038946U true CN202038946U (en) 2011-11-16

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102765857A (en) * 2012-08-06 2012-11-07 上海电力学院 Sewage treatment system and application thereof
CN103086576A (en) * 2013-02-28 2013-05-08 北京凯易信环境科技有限公司 Acrylonitrile/acrylon production comprehensive wastewater treatment technique
CN105242696A (en) * 2015-10-23 2016-01-13 蓝星石油有限公司济南分公司 Sewage treatment monitoring pond effluent control system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102765857A (en) * 2012-08-06 2012-11-07 上海电力学院 Sewage treatment system and application thereof
CN103086576A (en) * 2013-02-28 2013-05-08 北京凯易信环境科技有限公司 Acrylonitrile/acrylon production comprehensive wastewater treatment technique
CN105242696A (en) * 2015-10-23 2016-01-13 蓝星石油有限公司济南分公司 Sewage treatment monitoring pond effluent control system

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C14 Grant of patent or utility model
GR01 Patent grant
CP03 Change of name, title or address
CP03 Change of name, title or address

Address after: 210047, -155, No. 168, Tai Chi Road, Nanjing chemical industry park, Liuhe, Jiangsu

Patentee after: Bored environmental group Limited by Share Ltd

Address before: 210009 building four, industrial design garden, Nanjing University of Technology, Zhongshan North Road 200, Jiangsu, Nanjing 218, China

Patentee before: Nanjing Institute of Geography & Limnology

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20111116