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Concentrating and recovering device for copolymerization resin waste water and recovery method thereof

A wastewater concentration and recovery device technology, applied in chemical instruments and methods, osmotic/dialysis water/sewage treatment, semi-permeable membrane separation, etc. Clean production and other issues, to achieve the effect of reducing adhesion, small footprint, and reduced probability

Active Publication Date: 2014-04-16
江苏双净净化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantages of this treatment method are: the treatment cost is high, and the harmful substances in the solid and liquid are transferred, which is not good for the environment, which increases the production cost and fails to meet the requirements of clean production.
[0005] (2) The "Copolymerization Resin Wastewater Concentration and Recovery Device" announced by the utility patent CN 201678490 U is used for the recovery of resin mother liquor, which can improve the shortcomings of method (1). The operation of the waste liquid is not stable enough, and there is no air scrubbing process, so it is easy to be fouled and blocked, and the goal of mother liquor reuse cannot be truly realized

Method used

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  • Concentrating and recovering device for copolymerization resin waste water and recovery method thereof
  • Concentrating and recovering device for copolymerization resin waste water and recovery method thereof
  • Concentrating and recovering device for copolymerization resin waste water and recovery method thereof

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Experimental program
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Effect test

Embodiment 1

[0036] Such as Figure 1-2 As shown, the copolymer resin wastewater concentration and recovery device includes a membrane shell 1, and a permeation cavity 2 is arranged in the membrane shell 1, and a plurality of hollow tubular hollow fibers 3 are arranged in the permeation cavity;

[0037] The bottom end of the membrane shell 1 is provided with an A interface, the top end is provided with a D interface, the upper end of the side is provided with a C interface, and the lower end of the side is provided with a B interface.

[0038] The number of the hollow tubular hollow fibers 3 ranges from hundreds to tens of thousands, and the outer diameter thereof is 1-2 mm. The top end of the hollow tubular hollow fiber 3 is fixed on the permeation cavity, and the other end is blocked and not fixed. The hollow tubular hollow fiber can only pass through small molecular particles but not large molecular particles; the small molecular particles are substances with a molecular weight of thousa...

Embodiment 2

[0042] The method for reclaiming waste water by the copolymer resin waste water concentration recovery device, the steps are as follows:

[0043] (1) Operation: A port enters waste water with a flow rate of 100-300L / m 2 · h, pressure 0. 02-0. 15MPa; B port into the compressed air, the flow rate is 0.05-0.15Nm 3 / h, pressure 0. 1-0. 12MPa; C port is the concentrated water outlet; D port is the permeate outlet, the flow rate is 10-25L / m 2 h;

[0044] Backwashing: After running for 1 hour, the backwashing water enters the D port with a flow rate of 100-300L / m 2 h, pressure 0. 02-0. 15MPa; C port is the compressed air inlet, the flow rate is 0.05-0.15Nm 3 / h, pressure 0. 1-0. 12MPa; A port is the washing water outlet; backwash 60s;

[0045] Positive flushing: After backwashing, flushing water enters the A port with a flow rate of 100-300L / m 2 h, pressure 0. 02-0. 15MPa; B port is the compressed air inlet, the flow rate is 0.05-0.15Nm 3 / h, pressure 0. 1-0. 12MPa; C interf...

Embodiment 3

[0055] Embodiment 3 overall system technological process

[0056] Such as image 3 As shown, the wastewater to be treated is located in the raw material pool a, and the raw material pool a is connected to the raw material pump b, and the raw material pump b extracts the raw material wastewater from the raw material pool a, and passes through the first filter c, the second filter d and the third filter in sequence device e, and then enter a group of copolymer resin waste water concentration recovery device f, the copolymer resin waste water concentration recovery device f is connected with the permeate liquid pool g, and the permeate liquid pool g is connected with a backwash pump h, and the permeate liquid pool g is also connected with Medicine washing tank i connection;

[0057] The raw material pump b is also connected to the medicine washing filter j; the copolymer resin wastewater concentration and recovery device f is fed into the compressed air h.

[0058] When the who...

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Abstract

The invention relates to a concentrating and recovering device for copolymerization resin waste water and a recovery method thereof, and belongs to the technical field of recovery. The device comprises a film shell, wherein a permeation cavity is formed in the film shell; a plurality of hollow tube-shaped hollow fibers are arranged inside the permeation cavity; an A interface is formed in the bottom end of the film shell; a D interface is formed in the top end of the film shell; a C interface is formed in the upper end of the side face of the film shell; a B interface is formed in the lower end of the side face of the film shell. The operation manner of the device is the continuation of operation, back washing and front washing; the operation manner of gas-water mixing of 'high cross flow full-time aeration, polluting while washing' is adopted; the operation is stable, the possibility of blockage caused by dirt is low, and the technological process is short; after the waste water enters the device, separation and reusing are conducted simultaneously, and 95% of the waste water is recycled, so that the manufacturing cost is saved, and zero emission is achieved; therefore, green manufacturing is really achieved; the device is less, the size is small, and the occupied area is small; the operation is full-automatic, the power consumption is saved, the total operation cost is low, and the treatment cost is low.

Description

technical field [0001] The invention relates to a device for concentrating and recovering copolymerized resin waste water and a recovery method thereof, in particular to a device for concentrating and filtering the mother liquor of copolymerized resin used for copolymerization of vinyl chloride and vinyl acetate and a recovery method thereof, and belongs to the technical field of recovery. Background technique [0002] In the prior art, the mother liquor wastewater treatment produced in the production process of vinyl chloride and vinyl acetate copolymer resin usually adopts the following method: [0003] (1) Add a special precipitant to the wastewater to separate the solid and liquid in the emulsion, take the upper clarified liquid and then undergo biochemical treatment, and the treated clarified liquid is directly discharged, and the solid sediment is exported to other units deal with. [0004] The disadvantages of this treatment method are: the treatment cost is high, an...

Claims

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Application Information

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IPC IPC(8): C02F1/44B01D63/02
Inventor 翁林兴
Owner 江苏双净净化科技有限公司
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