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Preparation method of gourmet powder industrial waste water treatment membrane cleaning agent

A technology for treating industrial wastewater and membranes, applied in chemical instruments and methods, membrane technology, semi-permeable membrane separation, etc., can solve problems such as fouling of membrane modules, deterioration of membrane system operation, and system paralysis

Inactive Publication Date: 2011-04-27
CHINA NAT OFFSHORE OIL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the organic pollutants in MSG wastewater are soluble small molecules, which can easily cause fouling of the membrane modules. Conventional cleaning agents cannot completely remove the pollutants on the membrane surface, which will easily cause the membrane system to deteriorate and eventually lead to system failure.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] 25% sodium hydroxide, 3.5% sodium polyphosphate, 3% sodium alkylbenzene sulfonate, 0.1% alkyl glycoside, 3% diatomaceous earth, 3.5% sodium hypochlorite, 4% sodium silicate, fatty alcohol polyoxyethylene Ether sulfate 0.3%, zircoaluminate coupling agent 0.1%, sodium sulfate 3%, sodium carbonate 6%, edetate disodium salt 5.5%, ethanol 7%, water 36%, according to the above components Add them in the listed order into a stirred reactor, and stir at room temperature and normal pressure for 4-8 hours at the same time to obtain the finished product. After cleaning the membrane surface pollutants test, it is measured that the water production of the membrane before and after the membrane cleaning is increased from 117m 3 / h returns to 150m 3 / h, the product water flux of the unused new reverse osmosis membrane is 143m 3 / h.

Embodiment 2

[0013] 27% sodium hydroxide, 4% sodium polyphosphate, 3% sodium alkylbenzenesulfonate, 0.3% alkyl glycoside, 3% diatomaceous earth, 3% sodium hypochlorite, 3% sodium silicate, fatty alcohol polyoxyethylene Ether sulfate 0.5%, zircoaluminate coupling agent 0.2%, sodium sulfate 2%, sodium carbonate 6%, edetate disodium salt 3%, ethanol 7%, water 38%, according to the above components Add them in the listed order into a stirred reactor, and stir at room temperature and normal pressure for 4-8 hours at the same time to obtain the finished product. After cleaning the membrane surface pollutants test, it is measured that the water production of the membrane before and after the membrane cleaning is increased from 117m 3 / h returns to 158m 3 / h, the product water flux of the unused new reverse osmosis membrane is 158m 3 / h.

Embodiment 3

[0015] 31% sodium hydroxide, 2% sodium polyphosphate, 3% sodium alkylbenzenesulfonate, 0.2% alkyl glycoside, 1% diatomaceous earth, 1% sodium hypochlorite, 2% sodium silicate, fatty alcohol polyoxyethylene Ether sulfate 0.5%, zircoaluminate coupling agent 0.3%, sodium sulfate 3%, sodium carbonate 5%, edetate disodium salt 4%, ethanol 6%, water 41%, according to the above components Add them in the listed order into a stirred reactor, and stir at room temperature and normal pressure for 4-8 hours at the same time to obtain the finished product. After cleaning the membrane surface pollutants test, it is measured that the water production of the membrane before and after the membrane cleaning is increased from 117m 3 / h returns to 141m 3 / h, the product water flux of the unused new reverse osmosis membrane is 143m 3 / h.

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PUM

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Abstract

The invention relates to a preparation method of a gourmet powder industrial waste water treatment membrane cleaning agent. The preparation method comprises the following steps of: mixing inorganic salt, a coupling agent, a function monomer with surface activity, a stabilizer, an addition agent, an organic solvent and deionized water, placing the materials in a reactor, and stirring at normal temperature and normal pressure to prepare the gourmet powder industrial waste water treatment membrane cleaning agent. The gourmet powder industrial waste water treatment membrane cleaning agent is prepared by using ethanol water as the medium and comprises the following components in percent by weight: 20-33% of sodium hydroxide, 0.5-5% of sodium triphosphate, 2.5-5% of sodium alkyl benzene sulfonate, 0.1-0.5% of alkyl polyglucoside, 1-5% of kieselguhr, 1-5% of sodium hypochlorite, 1-6% of sodium silicate, 0.3-0.8% of fatty alcohol polyoxyethylene ether sulfate, 0.1-0.5% of zirconium aluminum acid ester coupling agent, 0-5% of sodium sulfate, 0-8% of sodium carbonate, 0-7% of edetic acid disodium slat, 5-10% of ethanol and 35-45% of water. The gourmet powder industrial waste water treatment membrane cleaning agent is prepared by the step of stirring the components for 4-8h at room temperature and normal pressure in a reactor.

Description

technical field [0001] The invention relates to the technical field of industrial water treatment, and is a preparation method of a membrane cleaning agent for monosodium glutamate industrial wastewater treatment, in particular, it relates to the preparation of a membrane pollution cleaning agent in the membrane advanced treatment and recycling process of monosodium glutamate industrial wastewater Preparation. Background technique [0002] Membrane pollution cleaning agent is a chemical agent used to clean membrane surface pollutants polluted by monosodium glutamate wastewater. Dissolving in water can remove membrane surface pollutants, restore membrane pore flow rate, reduce membrane surface pressure difference, and restore water production. This method It is a convenient and economical method to remove pollutants on the membrane surface without adding fixed equipment for pipelines. [0003] Most of the organic pollutants in MSG wastewater are soluble small molecules, whic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D65/06
Inventor 陈爱民张艳芳李亮徐海波刘建秋
Owner CHINA NAT OFFSHORE OIL CORP
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