Membrane separation technology in fluorescent brighteners production using membrane separation technology for dyestuff industry reaction product liquid impurity purification and concentration, not only to the reaction product liquid salts, low molecular weight byproducts remove dye production, etc. impurities, moreover be able to concentrated product, get high-quality's liquid products. Traditional production methods commonly used in salting, acid precipitation, requires large amounts of salts and acids, not only increase the cost of the damage to the environment, and the product of impurities such as salts and acids difficult to remove, the impact on the quality of products; the use of membrane technology its impurity purification and concentration mbr film, not only greatly reduce production costs, improve product quality, and avoid harm to the environment, and create directly to enterprises considerable economic and social benefits. Offline chemical cleaning line chemical cleaning at room temperature with a single agent cleaning Xuzhou mbr film, may not be fully restored filtration performance of the membrane, and the membrane module long immersed in an activated sludge mixture, some tolerated bacteria and microorganisms may In certain perturbative weak portions of the membrane module accumulation, easy to peel. Therefore Yancheng mbr film, it is necessary to regularly membrane offline strengthen cleaned, in order to maximize recovery filtration performance of the membrane. Offline chemical cleaning, also known as immersion cleaning or chemically enhanced cleaning. And online chemical cleaning different offline chemical cleaning membrane systems need to quit running for a long time, and usually use a variety of agents, an appropriate increase in the cleaning solution temperature (about 35 ℃), drug concentration is higher. Lianyungang mbr film, Chun-hsin environmental technology (certified), Jiangsu mbr film provided by Nanjing Jun Xin Environmental Protection Technology Co., Ltd. Nanjing Jun Xin Environmental Protection Technology Co., Ltd. (www.jxhb880.com) (http://www.jxhb880.com) is a leader in Nanjing, Jiangsu Province, sewage treatment equipment, over the years, the company is implementing the scientific management, innovation and development, honesty and trustworthiness policy, and satisfy customer needs. Jun Xin in environmental technology leadership with the staff warmly welcome all inquiries negotiations to create Chun-hsin environmental technology a better future. You can also access (http://www.jxhb880.com/supply_details_39865125.html), about the company for more information.