Ceramic membrane cleaning agent

A ceramic membrane and cleaning agent technology, applied in the field of cleaning agents, can solve the problems of unfavorable environmental protection, low cleaning efficiency, and low cleaning efficiency, and achieve the effects of reducing chemical consumption, high cleaning efficiency, and shortening cleaning time

Active Publication Date: 2013-06-05
SHANGHAI MEISHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above-mentioned cleaning agents for ceramic membranes all have the following problems: using the above-mentioned cleaning agents to clean the ceramic membranes, the duration of each cleaning process is as little as 60 minutes, as many as several hours or even days, and the cleaning efficiency is indeed not high, and the consumption time is too long The above-mentioned cleaning agent contains components that cannot be recycled in subsequent processes, such as silicate, tetraborate, nitrate, etc., which are easy to cause pollution, are not conducive to environmental protection, and do not meet the requirements of green circular economy; in addition, due to cleaning efficiency Low, so that the consumption of chemicals is very large, and the cleaning cost remains high

Method used

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  • Ceramic membrane cleaning agent
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The cleaning agent for ceramic membrane of the present embodiment is formed by mixing the following components by weight percentage:

[0036]

[0037] It should be pointed out that the present invention mainly utilizes the emulsifying effect generally possessed by emulsifiers to ensure the cleaning effect, therefore, each embodiment of the present invention can use any emulsifier in the prior art. The applicant has found through research that when the emulsifier is at least one of sodium stearate and sodium lauryl sulfate, a better cleaning effect can be achieved, which can be used as a preferred technical means.

[0038] The cleaning agent of this embodiment is a powder easily soluble in water.

[0039] The preparation method of the cleaning agent of this embodiment comprises the following steps: adding 30% sodium hydroxide, 30% sodium bicarbonate, 18% pentasodium triphosphate, 9% dodecane in the corrosion-resistant reactor Sodium phenyl sulfonate, 7% diatomaceous ...

Embodiment 2

[0047] The cleaning agent for ceramic membrane of the present embodiment is formed by mixing the following components by weight percentage:

[0048]

[0049] The emulsifier is preferably at least one of sodium stearate and sodium lauryl sulfate.

[0050] The cleaning agent of this embodiment is a powder easily soluble in water.

[0051] The preparation method of the cleaning agent of the present embodiment comprises the following steps: adding 28.5% sodium hydroxide, 22% sodium bicarbonate, 14.5% pentasodium triphosphate, 8% dodecane in the corrosion-resistant reactor Sodium phenyl sulfonate, 10% diatomaceous earth, 7% emulsifier, 10% sodium percarbonate; grind evenly to obtain ceramic membrane cleaning agent.

[0052] The purposes of present embodiment cleaning agent are identical with embodiment 1.

[0053] The cleaning method of the ceramic membrane using the cleaning agent of this embodiment is the same as that of Embodiment 1.

[0054] The cleaning experiment data i...

Embodiment 3

[0057] The cleaning agent for ceramic membrane of the present embodiment is formed by mixing the following components by weight percentage:

[0058]

[0059]

[0060] The emulsifier is preferably at least one of sodium stearate and sodium lauryl sulfate.

[0061] It should be pointed out that the cleaning agent of the present invention mainly utilizes the universal decontamination effect of surfactants to improve the cleaning effect. Therefore, each embodiment of the present invention can use any surfactant in the prior art. The applicant found through research that when the surfactant is at least one of alkylbenzenesulfonic acid, sodium lauryl ether sulfate, and coconut oil diethanolamine, a better cleaning effect can be achieved, which can be used as a preferred technical means.

[0062] The cleaning agent of this embodiment is a powder easily soluble in water.

[0063] The preparation method of the cleaning agent of the present embodiment comprises the following steps:...

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Abstract

The invention relates to a ceramic membrane cleaning agent. The ceramic membrane cleaning agent comprises, by weight, 20-30% sodium hydroxidesodium hydroxide, 20-30% sodium bicarbonate, 10-20% sodium tripolyp hosphate, 5-10% dodecylbenzene sodium sulfonate, 5-10% infusorial earth, 2-8% emulgator, 0-10% sodium percarbonate, 0-3% surfactant and 0-3% active enzymes. The ceramic membrane cleaning agent is high in cleaning efficiency, capable of recovering filtering flux of a ceramic membrane, environment friendly, free from contamination and capable of meeting requirements of environment-friendly circular economy.

Description

technical field [0001] The invention relates to a cleaning agent for ceramic membranes, belonging to the technical field of cleaning agents. Background technique [0002] Two types of ceramic membrane separation equipment are required for the treatment plant of oily wastewater from steel cold rolling. One is an ultrafiltration oil removal device, which uses ultrafiltration ceramic membranes as filter materials, and mainly separates large molecular oils and small molecular waters in wastewater; the other is membrane bioreactors, which use microfiltration ceramic membranes as filtration materials. The material mainly separates the large particulate matter (suspended solids, microorganisms) in the wastewater decomposed by microorganisms and the clean water of small particles. After running for a period of time, the ceramic membranes in these two types of ceramic membrane separation equipment will be polluted and blocked by macromolecular oils and large particles in the wastewa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D65/06
Inventor 于建霞高玉强张仁鹏
Owner SHANGHAI MEISHAN IRON & STEEL CO LTD
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