Low-foam membrane cleaning agent
A cleaning agent and bubble film technology, which is applied in the cleaning of membrane media and the field of low-foam film cleaning agents, can solve the problems of easy residue, low cleaning efficiency, high foam, etc.
Inactive Publication Date: 2018-10-02
广州迪奕科环保科技有限公司
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AI Technical Summary
Problems solved by technology
Due to the particularity of the application of membrane media, acidic cleaning agents and alkaline cleaning agents are currently used for membrane cleaning, and strong acids and alkalis are usually used, resulting in a large cleaning load and low cleaning efficiency.
Surfactants are still used in many formulas to enhance the cleaning effect, but most of them are still conventional surfactants, which have high foam, easy residue, and low cleaning efficiency, which is a big disadvantage in systems with high cleanliness requirements.
There are also patents that refer to the use of low-foaming surfactants, such as a liquid enzyme membrane cleaning agent in patent CN 101457182, which uses PE6100 or PE6200 with foam-suppressing effect. The cleaning efficiency of this chemical is low, and in the formula Not primarily for cleaning purposes
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment
[0013] 1. A low-foaming film cleaning agent, the formulation of which is as follows: (the contents of the following components are all in mass percent)
[0014] Isooctyl polyoxyethylene polyoxypropylene (HLB value 12.5): 30%
[0015] GLDA: 30% (mass percentage)
[0016] water: balance
[0017] This formula can be used as a conventional on-line cleaning agent for reverse osmosis membranes. It can be diluted 30-1000 times as needed, and it is easy to rinse off and leaves no residue.
[0018] 2. A low-foaming film cleaning agent, the formulation of which is as follows: (the contents of the following components are all in mass percent)
[0019] Isooctyl Glucoside 15%
[0020] Isooctyl polyoxyethylene polyoxypropylene (HLB value 10.8): 5% (mass percentage)
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The invention discloses a low-foam membrane cleaning agent, belongs to the technical field of water treatment and particularly relates to cleaning of membrane media. The low-foam membrane cleaning agent is mainly characterized in that the cleaning agent is low in foam and less in residue and contains a low-foam surfactant, a chelating agent and the like. The low-foam membrane cleaning agent disclosed by the invention does not contain an antifoaming agent, high in cleaning efficiency, easy to rinse and basically residue-free.
Description
technical field [0001] The invention discloses a low-foaming membrane cleaning agent, belongs to the technical field of water treatment, and in particular relates to cleaning of membrane media. Background technique [0002] The current environmental protection technology and membrane separation technology are more and more widely used, and have been widely used in chemical industry, water treatment, food industry, paper industry and other fields. However, with the increase of applications, the cleaning and maintenance of the membrane as a separation medium is more important. In particular, some large-scale membrane components cannot be replaced frequently, and they need to be cleaned physically or chemically to ensure the normal operation of the system. [0003] There are many types of membrane separation media, such as microfiltration membrane, nanofiltration membrane, reverse osmosis membrane and so on. After the membrane group has been in operation for a long time, the ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B01D65/06
CPCB01D65/022
Inventor 江丽
Owner 广州迪奕科环保科技有限公司