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Cleaning agent for treating oily waste water tubular ceramic membrane and cleaning method

A technology of ceramic membrane and cleaning agent, applied in special treatment targets, chemical instruments and methods, water/sludge/sewage treatment, etc. Effect

Inactive Publication Date: 2018-06-05
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a cleaning agent and a cleaning method for treating oily wastewater tubular ceramic membranes, so as to solve the problem of insufficient cleaning ability of cleaning agents in the prior art

Method used

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Examples

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Embodiment Construction

[0026] The technical solution of the present invention is described in detail below through specific examples. The following examples are only exemplary, and can only be used to explain and illustrate the technical solution of the present invention, but cannot be construed as a limitation to the technical solution of the present invention.

[0027] The tubular ceramic membrane to be treated in this application is a tubular ceramic membrane blocked by oily wastewater. And the technical solution of the present application is only applicable to the cleaning agent and cleaning method of the tubular ceramic membrane blocked by oily wastewater. In this application, the oily wastewater generally contains mineral oil, fatty acid, surfactant, microorganism, emulsifier and lubricating oil, etc. These pollutants are mainly organic components, which are characterized by large molecular weight, easy to block ceramic membrane pores, and difficult to dissolve. Difficult to clean.

[0028] T...

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PUM

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Abstract

The invention relates to a cleaning agent for treating an oily waste water tubular ceramic membrane and a cleaning method. The cleaning agent comprises an acidic cleaning agent and an alkaline cleaning agent, wherein the acidic cleaning agent is a strong acid solution; and the alkaline cleaning agent is composed of NaOH, EDTA and sodium dodecyl benzene sulfonate. The chemical cleaning agent is relatively poor in activity at low temperature, the activity of the chemical cleaning agent is not improved obviously as the temperature exceeds a certain degree, and the energy consumption of the equipment is too great. Experiments verify that the cleaning effect is relatively good when the alkaline washing temperature is about 60 DEG C and the pickling temperature is about 30 DEG C, and the energyconsumption is moderate. According to the technical scheme, blockage caused by oily substances of the ceramic membrane can be eliminated effectively through the formula and the cleaning method of thecleaning agent, and the using ability of the equipment is recovered.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, in particular to a cleaning agent and a cleaning method for a tubular ceramic membrane in the process of treating oily wastewater. Background technique [0002] Ceramic membrane is a kind of inorganic membrane, which belongs to the solid membrane material in membrane separation technology. Ceramic membrane is generally divided into two types: tubular ceramic membrane and flat ceramic membrane. [0003] The tube wall of the tubular ceramic membrane is densely covered with micropores, and a certain pressure is applied on both sides of the membrane. When water flows through the surface of the membrane, macromolecules such as suspended solids, colloids, and microorganisms in the water are intercepted, and only water, inorganic salts, and small molecules are allowed to pass through. Through the membrane to achieve the purpose of purification, separation and concentration of the soluti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D65/06B01D69/04B01D71/02C02F1/44C02F101/32
CPCB01D65/02B01D69/04B01D71/02B01D2321/16B01D2321/162B01D2321/164B01D2321/28C02F1/44C02F2101/32C02F2303/14
Inventor 施媛媛吴拓詹立新张富家魏洪亮马彬
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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