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Macroporous adsorption resin regenerated waste liquid alkali recovery process device and method

A technology for resin regeneration and regeneration of waste liquid, which is applied in the field of water treatment and can solve the problems of high cost of treatment process and so on.

Active Publication Date: 2020-07-07
艾西姆(辽宁)环境技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems of high alkali concentration and organic matter concentration in regeneration waste liquid of macroporous adsorption resin and high cost of traditional treatment process, the present invention proposes a process device and method for recovering alkali from regeneration waste liquid of macroporous adsorption resin

Method used

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  • Macroporous adsorption resin regenerated waste liquid alkali recovery process device and method

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Experimental program
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Effect test

Embodiment 1

[0057] A macroporous adsorption resin regenerated waste liquid alkali recovery process device, its structure schematic diagram is shown in figure 1 . The device is a recovery process device for bypass regeneration waste liquid alkali on the macroporous adsorption resin-lye regeneration system, and separates alkali and organic matter from the regeneration waste liquid alkali, and the separated alkali liquor is reused for macroporous adsorption resin to regenerate alkali Liquid preparation, the regenerated waste liquid alkali recovery process device described in it includes a homogeneous ion exchange membrane electrodialysis device, a raw water circulation pool 3, an extreme water circulation pool 5, a recycled lye circulation pool 4, a raw water circulation pump 8, and an extreme water circulation pump 10. Recover the lye circulation pump 9.

[0058] The homogeneous ion exchange membrane electrodialysis device includes a DC power supply 2 and a homogeneous ion exchange membran...

Embodiment 2

[0091] A macroporous adsorption resin regenerated waste liquid alkali recovery process device, the same as that described in Example 1.

[0092] The process of realizing recycling of the regenerated waste liquid alkali recovery process device includes:

[0093] The macroporous adsorption resin regenerated waste liquid alkali a enters the raw water circulation pool 3, is lifted by the raw water circulation pump 8 and processed by the homogeneous ion exchange membrane stack 1, and the generated raw water from which the lye is removed returns to the raw water circulation pool 3 to form Separate closed loop.

[0094] The low-concentration lye with a mass concentration of 0.05% is pre-prepared in the reclaimed lye circulation pool 4 as the initial reclaimed lye, which is lifted to the homogeneous ion-exchange membrane stack 1 by the reclaimed liquid circulation pump 9 for processing, and the recovered lye produced is The b outlet water returns to recovery lye circulation pool 4 ag...

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Abstract

The invention discloses a macroporous adsorption resin regenerative waste liquid alkali recovery process device and method and belongs to the field of water treatment. For the device, a macroporous adsorption resin-alkali liquid regeneration system is provided with a bypass regenerative waste liquid alkali recovery process device to perform separation of alkali and organic matters on regenerativewaste liquid alkali; the separated alkali liquid is reused for preparation of macroporous adsorption resin regenerative alkali liquid; the regenerative waste liquid alkali recovery process device comprises a homogenous phase ion exchange membrane electrodialysis device, a raw water circulation pool, an electrode rinse circulation pool, a recovered alkali liquid circulation pool, a raw water circulation pump, an electrode rinse circulation pump and a recovered alkali liquid circulation pump. The method comprises the following steps of preparing electrode rinse and alkali recovery liquid; ensuring each waterway to be clear; turning on a direct-current power supply to enable equipment to normally run; periodically detecting the mass concentration of alkali in the recovered alkali liquid; closing the raw water circulation pump, the recovered alkali liquid circulation pump and the electrode rinse circulation pump. By adopting the method, alkali consumption in the resin regeneration processand neutralization acid consumption in regenerative waste liquid treatment can be lowered, and the treatment cost of resin regenerative waste liquid treatment can be greatly lowered.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to a process device and method for recovering alkali from regeneration waste liquid of macroporous adsorption resin. Background technique [0002] Biochemical tail water in coking, coal chemical, pharmaceutical, chemical, petrochemical and other industries usually contains polycyclic aromatic hydrocarbons, halogenated hydrocarbons, heterocyclic compounds, organic cyanides, organophosphorus pesticides, surfactants, organic dyes and other refractory organic pollutants things. These organic substances are decomposed slowly or cannot be completely decomposed by microorganisms, and are easy to accumulate in organisms and become potential sources of water pollution. If such substances are discharged to the environment without treatment, they will seriously pollute the environment and threaten human health. The treatment of refractory organic matter is a hot and difficult point in the rese...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/469C02F101/10C02F101/30
CPCC02F1/4693C02F2101/10C02F2101/30
Inventor 王惠丰史克威谷岩邢海营
Owner 艾西姆(辽宁)环境技术有限公司
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