Detergent suitable for cleaning hollow fiber ultrafiltration membrane and method for producing the same

Abstract

The invention provides a cleaning agent that is applicable to clean hollow fiber ultrafiltration membrane, which comprises the compounds (percentage by weight): anhydrous sodium carbonate accounts for 25-45 percent, trisodium phosphate accounts for 5-20 percent, anhydrous sodium sulfate accounts for 2-5 percent, ethylene diamine tetraacetic acid tetrasodium salt (EDTA-4Na) accounts for 5-15 percent, sodium percarbonate accounts for 0-33 percent, emulsifying agent SAS accounts for 8-15 percent, peregal-25 accounts for 0-5 percent and dodecyl sodium sulfate accounts for 4-10 percent. The compounds are added into an enamel reactor with a stirrer and a grinder in sequence to be stirred for 2-3 hours, thus obtaining the cleaning agent through grinding the mixture evenly. The invention has simple preparation and is particularly applicable to clean hollow fiber ultrafiltration membrane such as ultrafiltration oily wastewater, organic wastewater, protein concentration, etc.; the invention has strong decontamination direction, high effect and low cleaning cost.

Description

technical field [0001] The invention relates to the technical field of cleaning agents, more specifically, to a cleaning agent for ultrafiltration membranes, in particular to a cleaning agent suitable for cleaning hollow fiber ultrafiltration membranes and a preparation method thereof. Background technique [0002] In industrial production, the sources of oily wastewater are extremely wide, such as oilfield produced water, oil storage and transportation, oil tanker accidents, metal surface cleaning wastewater, petrochemical oily wastewater, oily wastewater from oil washing tanks in railway locomotive depots, oily tankers in ship breaking yards Wastewater, tanker ballast water, tank washing water, metal cutting and grinding emulsified wastewater, steel plant cold rolling emulsion wastewater, food processing process oily wastewater, etc. Oil in oily wastewater is generally considered to exist in the form of slick oil, dispersed oil, emulsified oil, and dissolved oil. [0003]...

AI Technical Summary

Problems solved by technology

For oily and organic wastewater, when the above method is used for cleaning, the cleaning time is long and the cleaning intensity is also high, which not only affects the pore structure of the membrane and thus affects the quality of the produced water, but also shortens the service life of the membrane and causes losses.