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Ceramic membrane stain cleaning agent, and preparation method and applications thereof

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, large consumption of chemicals, etc., and achieve the effects of reducing consumption of chemicals, improving elution performance, and shortening cleaning time.

Inactive Publication Date: 2019-07-09
NANJING YUANQUAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 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 is long and the cleaning efficiency is not high; the above-mentioned cleaning agents contain components that cannot be recycled in subsequent processes, such as silicate, boric acid, etc. Salt, nitrate, etc. are easy to cause pollution, which is not conducive to environmental protection and does not meet the requirements of green circular economy; in addition, due to the low cleaning efficiency, the consumption of chemicals is large, and the cleaning cost remains high

Method used

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  • Ceramic membrane stain cleaning agent, and preparation method and applications thereof
  • Ceramic membrane stain cleaning agent, and preparation method and applications thereof
  • Ceramic membrane stain cleaning agent, and preparation method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of cleaning agent for ceramic membrane dirt is formed by mixing the components in the following mass percentages:

[0031] Sodium dodecylbenzene sulfonate 5%, sodium dimethylbenzene sulfonate 3.5%, isomeric tridecyl alcohol polyoxyethylene ether 6.5%, triethanolamine 5%, tetrasodium edetate 8%, ethylene diamine tetraacetate Amine 2%, water 70%.

[0032] Add water, sodium dodecylbenzenesulfonate, sodium dimethylbenzenesulfonate, isomeric tridecyl alcohol polyoxyethylene ether, triethanolamine, tetrasodium edetate, Ethylenediamine, the cleaning agent for ceramic membrane dirt, is a clear and transparent light yellow aqueous solution.

[0033] The ceramic membrane dirt cleaning agent of present embodiment is used for the cleaning of the ceramic membrane used for electroplating copper-containing waste water filtration, comprises the following steps:

[0034] In the corrosion-resistant raw material tank, the ceramic membrane dirt cleaning agent is prepared with wate...

Embodiment 2

[0038] A kind of cleaning agent for ceramic membrane dirt is formed by mixing the components in the following mass percentages:

[0039] Sodium dodecylbenzenesulfonate 3%, sodium dimethylbenzenesulfonate 3.5%, polyether 6.5%, triethanolamine 5%, tetrasodium edetate 7%, ethylenediamine 4%, water 71% .

[0040] The preparation method of the cleaning agent for ceramic membrane dirt in this embodiment is the same as in Example 1, and the cleaning agent is a clear and transparent light yellow aqueous solution.

[0041] In the corrosion-resistant raw material tank, the ceramic membrane dirt cleaning agent of this embodiment is mixed with water and the ceramic membrane dirt cleaning agent is formulated into a solution with a mass percentage of 2.5%, and the cleaning method according to Example 1 is used for electroplating a ceramic membrane for nickel-containing waste water filtration. The filtration flux of the ceramic membrane can be restored to more than 99% after osmosis washing...

Embodiment 3

[0045] A kind of cleaning agent for ceramic membrane dirt is formed by mixing the components in the following mass percentages:

[0046] Sodium dodecylbenzene sulfonate 5%, Sodium dimethylbenzene sulfonate 3.5%, Sodium cumene sulfonate 1.5%, Polyether 3%, Isotridecyl ethoxylate 3%, Triethanolamine 5%, tetrasodium edetate 7%, ethylenediamine 7%, water 65%.

[0047] The preparation method of the cleaning agent for ceramic membrane dirt in this embodiment is the same as in Example 1, and the cleaning agent is a clear and transparent light yellow aqueous solution.

[0048] In the corrosion-resistant raw material tank, the ceramic membrane dirt cleaning agent of this embodiment is mixed with water and the ceramic membrane dirt cleaning agent is formulated into a solution with a mass percentage of 3.5%, and the cleaning method according to Example 1 is used for electroplating a ceramic membrane for chromium-containing wastewater filtration. The filtration flux of the ceramic membra...

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Abstract

The invention discloses a ceramic membrane stain cleaning agent. The ceramic membrane stain cleaning agent is prepared through mixing of following components, by mass, 0.5 to 10% of sodium dodecyl benzene sulfonate, 0.5 to 15% of a solubiliser, 0.5 to 10% of a nonionic surfactant, 1 to 8% of triethanolamine, 3 to 15% of a chelating agent, and 0.5 to 10% of ethylenediamine. The invention also discloses the applications of the ceramic membrane stain cleaning agent in cleaning of ceramic membranes for electroplating wastewater filtration. The ceramic membrane stain cleaning agent is friendly to the environment; no environment pollution is caused; no equipment corrosion is caused; green recycling economy requirements are satisfied; in the cleaning process, no heavy metal ions such as calcium are introduced; no components that cannot be recycled by subsequent processes are contained. 0.5 to 2h of washing of ceramic membranes with the ceramic membrane stain cleaning agent is capable of realizing rapid recovery of ceramic membrane filtration flux, the membrane flux can be recovered to be above 95%; the efficiency is high; the cleaning time is significantly shortened; and agent consumptionamount can be reduced obviously.

Description

technical field [0001] The invention relates to a cleaning agent, in particular to a ceramic membrane dirt cleaning agent and its preparation method and application. Background technique [0002] When ceramic membranes are used to treat electroplating wastewater, after a period of operation of the ceramic membrane device, the membrane pores will be blocked and polluted by a large number of metal ions, suspended solids and solid particles, the membrane flux will continue to decrease, the separation efficiency will be significantly reduced, and even damaged Ceramic Membrane. [0003] Chinese patent ZL200610117973.9 (authorized notification number CN100431675C) discloses a cleaning agent for ceramic ultrafiltration membranes, which consists of component A and component B, and component A is formed by dissolving the following components by weight percentage: sodium hydroxide 5-20%, sodium alkylbenzene sulfonate 5-10%, sodium carbonate 5-10%, and the rest is tap water; component...

Claims

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Application Information

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IPC IPC(8): C11D1/831C11D3/34C11D3/30C11D3/33C11D3/60
CPCC11D1/008C11D1/22C11D1/72C11D1/831C11D3/00C11D3/30C11D3/33C11D3/3418
Inventor 吴洋孟莹骆劲松吕志锋姚瑨徐杰胡忍
Owner NANJING YUANQUAN TECH CO LTD