Industrial wastewater treatment is a major and difficult problem in the development of industrial economy, and improper wastewater treatment will not only limit production efficiency, but also profoundly affect the relationship between man and nature. The methods used in industrial wastewater treatment should not only effectively treat the pollutants contained in the wastewater, but also avoid other pollution in the treatment process. Generally speaking, according to the different chemical properties of pollutants in industrial wastewater, the conventional methods used in treatment mainly include redox, filtration, chemical reaction neutralization, microbial decomposition, etc., in order to achieve the purpose of treating suspended solids, organic matter, metal and non-metal compounds, ions and other substances.
With the increasing abundance of industrial production categories and the more and more mature production technologies adopted in China, the pollutants and harmful substances contained in industrial wastewater have become complex and diverse. The traditional physicochemical and biological treatment process is long, and the equipment and treatment process used are time-consuming and inefficient, and new technologies need to be used to improve and improve.
The technology of tubular membrane treatment of industrial wastewater has been developed to a mature level, which can greatly improve the efficiency of physicochemical and biological treatment of industrial wastewater, improve the defects of such traditional treatment technologies, and have the comprehensive advantages of low energy consumption, low pollution, stable water quality and low investment cost. Its technical characteristics mainly include:
1.Small pore size, high separation accuracy, no chemical reaction and microbial action can be used to achieve the filtration of pollutant substances and harmful substances;
2.The surface flow rate is low, the filtration quality is high, the frequency conversion adjustment can be realized, the backwash can be backwashed, and the automatic operation ability is strong;
3.Strong anti-pollution ability, large flux, not easy to block, easy to clean and maintain;
4.The tubular membrane occupies a small area, is easy to install and easy to manage;
5.It can adjust the operating parameters according to the change of water volume, with low energy consumption and low energy consumption per ton of water treatment;
6.High mechanical strength, easy to break the wire during operation, low failure rate.
The tubular membrane is chemically stable, mostly made of PVDF and PES materials, which is not easy to be corroded by acid and alkali substances, and is suitable for all kinds of wastewater treatment with complex water quality such as high viscosity, high hardness and high COD. Therefore, its application space in industrial wastewater treatment is very broad.
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