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Technology for pretreating wastewater containing phenols through resin adsorption method

A resin adsorption and pretreatment technology, applied in adsorption water/sewage treatment, filtration treatment, special treatment targets, etc., can solve the problems of non-compliance with discharge standards, long treatment time, short service cycle, etc., and achieve easy desorption and regeneration. , low cost and stable performance

Inactive Publication Date: 2018-05-18
NANTONG BOTAO CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, using the extraction treatment method, the phenol content of the extracted wastewater still does not meet the discharge standards, and there is a small amount of extractant in the wastewater, which may cause secondary pollution; the main problem of using anaerobic treatment of wastewater is: COD, TOC The removal rate is not high, generally around 70%, GAC saturation is fast, the service life is short, regeneration is also difficult, and the treatment time is relatively long

Method used

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  • Technology for pretreating wastewater containing phenols through resin adsorption method
  • Technology for pretreating wastewater containing phenols through resin adsorption method
  • Technology for pretreating wastewater containing phenols through resin adsorption method

Examples

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Effect test

Embodiment 1

[0024] In this embodiment, the resin adsorption method pretreatment process of phenol-containing wastewater includes the following steps:

[0025] (1) Send the wastewater with a pH value of 3.5, a COD content of 100,000 mg / L, and a phenol content of 15,000 mg / L to the pre-stage raw wastewater tank through the filter;

[0026] (2) The waste water entering the former waste water tank is continuously fed into the resin adsorption tower through the adsorption circulation pump, and the flow rate is controlled to 1m 3 / h; the phenol-containing wastewater entering the resin adsorption tower is continuously adsorbed by the XDM-1G resin column in the adsorption tower through two stages of continuous adsorption, and the phenol in the wastewater is adsorbed on it;

[0027] (3) After the resin is adsorbed, the pretreated wastewater passes through the wastewater pump at a rate of 1m 3 / h flow into the sewage treatment tank;

[0028] (4) After every 10 tons of wastewater is treated, the X...

Embodiment 2

[0035] In this embodiment, the resin adsorption method pretreatment process of phenol-containing wastewater includes the following steps:

[0036] (1) Send the wastewater with a pH value of 3.8, a COD content of 98000mg / L, and a phenol content of 15200mg / L to the pre-stage raw wastewater tank through the filter;

[0037] (2) The waste water entering the former waste water tank is continuously fed into the resin adsorption tower through the adsorption circulation pump, and the flow rate is controlled to 2m 3 / h; the phenol-containing wastewater entering the resin adsorption tower is continuously adsorbed by the XDM-1G resin column in the adsorption tower through two stages of continuous adsorption, and the phenol in the wastewater is adsorbed on it;

[0038] (3) After the resin is adsorbed, the pretreated wastewater passes through the wastewater pump at a distance of 3m 3 / h flow into the sewage treatment tank;

[0039] (4) After every 10 tons of wastewater is treated, the XD...

Embodiment 3

[0046] In this embodiment, the resin adsorption method pretreatment process of phenol-containing wastewater includes the following steps:

[0047] (1) Send the wastewater with a pH value of 3.6, a COD content of 99000mg / L, and a phenol content of 15100mg / L to the pre-stage raw wastewater tank through the filter;

[0048] (2) The waste water entering the former waste water tank is continuously fed into the resin adsorption tower through the adsorption circulation pump, and the flow rate is controlled to 2m 3 / h; the phenol-containing wastewater entering the resin adsorption tower is continuously adsorbed by the XDM-1G resin column in the adsorption tower through two stages of continuous adsorption, and the phenol in the wastewater is adsorbed on it;

[0049] (3) After the resin is adsorbed, the pretreated wastewater passes through the wastewater pump at a distance of 3m 3 / h flow into the sewage treatment tank;

[0050] (4) After every 10 tons of wastewater is treated, the XDM...

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Abstract

The invention relates to a technology for pretreating wastewater containing phenols through a resin adsorption method. The technology comprises the following steps that 1, wastewater containing phenols is fed into a pre-stage raw wastewater tank through a filter; 2, the wastewater entering the pre-stage raw wastewater tank then passes through an adsorption circulating pump to be sequentially and continuously fed into a resin adsorption tower, and the control flow is 1-2 m<3> / h; the wastewater containing phenols entering the resin adsorption tower is continuously adsorbed through two stages bya resin column in the adsorption tower, and the phenols in the wastewater are adsorbed to the resin column; 3, after resin adsorption, the pretreated wastewater passes through the wastewater pump to be fed into a sludge treatment tank at the flow rate being 1-3 m<3> / h; 4, the resin column in the resin adsorption tower needs to be activated every time 10 tons of wastewater is treated. The technology has the advantages that the phenols in the phenol wastewater is adsorbed through the resin adsorption method, and according to the treatment method, waste recycling can be achieved while the wastewater is effectively treated.

Description

technical field [0001] The invention relates to a waste water treatment process, in particular to a resin adsorption method for pretreatment of waste water containing benzene [0002] Amine Wastewater Process. Background technique [0003] The chemical name of bisphenol S is 4,4-dihydroxydiphenyl sulfone, which has excellent heat resistance, light resistance and oxidation resistance. Bisphenol S is similar to bisphenol A in properties, and many uses are also similar, especially in polymerization, it can replace bisphenol A, and the thermal stability of the replaced product is greatly improved, and the mechanical properties are better. Bisphenol S is widely used, and its application research is also very active. Bisphenol S production plants with an annual output of tens of thousands of tons have been built abroad, and it can be expected that bisphenol S will develop at a relatively rapid speed both at home and abroad. [0004] At present, phenol is synthesized by direct s...

Claims

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Application Information

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IPC IPC(8): C02F9/02C02F1/28B01J20/34C02F101/34
CPCC02F1/001B01J20/3425C02F1/285C02F2101/345C02F2301/08C02F2303/16
Inventor 黄海涛王宏李桂萍
Owner NANTONG BOTAO CHEM
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