Reverse osmosis membrane alkaline cleaning agent and application thereof

A technology of reverse osmosis membrane and cleaning agent, which is applied in the direction of reverse osmosis, semipermeable membrane separation, osmosis/dialysis water/sewage treatment, etc., which can solve the problems of short storage period, long cleaning time, and insufficient cleaning strength, and facilitate transportation and storage, efficient and quick removal, and long shelf life

Pending Publication Date: 2020-03-06
INNER MONGOLIA CHANGSHENG PHARMA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the current commercial reverse osmosis membrane cleaning agents are not strong enough to clean penicillin production wastewater pollutants, and the cleanin

Method used

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  • Reverse osmosis membrane alkaline cleaning agent and application thereof
  • Reverse osmosis membrane alkaline cleaning agent and application thereof
  • Reverse osmosis membrane alkaline cleaning agent and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A reverse osmosis membrane alkaline cleaning agent comprises the following components in parts by weight:

[0035] 22 parts of sodium hydroxide, 32.5 parts of sodium tripolyphosphate, 16.5 parts of sodium carbonate, 16 parts of tetrasodium edetate, 7 parts of sodium bisulfite, 2 parts of sodium dodecylbenzenesulfonate, 2.5 parts of sodium sulfonate, 1.5 parts of alkaline protease; each component is uniformly mixed with a mixer to obtain a solid powder alkaline cleaning agent for reverse osmosis membrane.

[0036] Among them, alkaline protease (article number: FDG-2202) was purchased from Xiasheng Group, with an enzyme activity of 200,000 u / g.

Embodiment 2

[0038] A reverse osmosis membrane alkaline cleaning agent comprises the following components in parts by weight:

[0039] 18.5 parts of sodium hydroxide, 35 parts of sodium tripolyphosphate, 18 parts of sodium carbonate, 14.5 parts of tetrasodium edetate, 8 parts of sodium bisulfite, 3 parts of sodium dodecylbenzenesulfonate, 2 parts of sodium sulfonate, 1 part of alkaline protease; each component is uniformly mixed with a mixer to obtain a solid powder alkaline cleaning agent for reverse osmosis membrane.

[0040] Among them, alkaline protease (article number: FDG-2202) was purchased from Xiasheng Group, with an enzyme activity of 200,000 u / g.

Embodiment 3

[0042] A reverse osmosis membrane alkaline cleaning agent comprises the following components in parts by weight:

[0043] 20.5 parts of sodium hydroxide, 33.5 parts of sodium tripolyphosphate, 17.5 parts of sodium carbonate, 15 parts of tetrasodium edetate, 7.5 parts of sodium bisulfite, 2.5 parts of sodium dodecylbenzenesulfonate, dodecyl 2.5 parts of sodium sulfonate, 1 part of alkaline protease; each component is uniformly mixed with a mixer to obtain a solid powder alkaline cleaning agent for reverse osmosis membrane.

[0044] Among them, alkaline protease (article number: FDG-2202) was purchased from Xiasheng Group, with an enzyme activity of 200,000 u / g.

[0045] The reverse osmosis membrane equipment (3#RO membrane equipment) after fouling is cleaned with the reverse osmosis membrane alkaline cleaning agent in Example 1-3 respectively, wherein, the membrane of 3#RO membrane equipment (Xiamen Jiarong Technology Co., Ltd.) A total of 72 25×40 reverse osmosis membranes ar...

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Abstract

The invention discloses a reverse osmosis membrane alkaline cleaning agent. The alkaline cleaning agent comprises the following components in parts by weight: 18-22 parts of sodium hydroxide, 32-35 parts of sodium tripolyphosphate, 16-18 parts of sodium carbonate, 14-16 parts of ethylenediaminetetraacetic acid tetrasodium salt, 7-8 parts of sodium bisulfite, 2-3 parts of sodium dodecyl benzene sulfonate, 2-3 parts of sodium dodecyl sulfonate and 0.5-1.5 parts of alkaline protease. The reverse osmosis membrane alkaline cleaning agent provided by the invention can be used for efficiently cleaning out pollutants on a reverse osmosis membrane element which is used for treating penicillin production waste liquid. The alkaline cleaning agent is low in cost, is convenient to transport and store has low cost, and has a shelf life of 12 months or above.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment in the pharmaceutical industry, in particular to an alkaline cleaning agent for reverse osmosis membranes and its application. Background technique [0002] Penicillin production will produce high-concentration wastewater with complex components, high chroma, high biological toxicity, and refractory degradation, which requires special treatment; reverse osmosis membrane separation treatment is a common treatment method. [0003] However, after the existing reverse osmosis membrane system has been in normal operation for a period of time, the permeate water volume will decrease, the system pressure difference will increase, the salt penetration will increase, and the water quality will deteriorate; mainly due to the reverse osmosis membrane itself during use. There will be physical and chemical changes, and the organic matter in the feed water will accumulate on the surface of the memb...

Claims

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Application Information

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IPC IPC(8): B01D65/02B01D61/02C02F1/44
CPCB01D61/025B01D65/02B01D2321/166B01D2321/168C02F1/441C02F2303/14
Inventor 陈顺记郭建明陈英新袁晓明郝海涛白雪峰侯闯
Owner INNER MONGOLIA CHANGSHENG PHARMA
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