Petrochemical
The petrochemical industry is a key strategic industry in the country. It is an industry that uses petroleum or natural gas as its main raw material to produce various petrochemical products and by-products through chemical processes. The petrochemical industry sewage has the characteristics of large water consumption, large sewage discharge, complex sewage composition, high oil content, high treatment cost and great environmental hazard, and most of them are located in water-deficient and environmentally sensitive areas, and the demand for water reuse is strong. Oily sewage discharged directly without treatment will cause serious environmental pollution and is also a great waste of water resources. The recycling of oily sewage can save huge economic costs for the petrochemical industry. Because petrochemical products involve all aspects of the lives of ordinary people, the demand for the people's material living standards has increased with the development of the economy. The petrochemical industry itself is a major water user, the amount of petroleum processing has increased, and the actual water consumption in the chemical process has increased. A large number of petrochemical wastewaters are produced. Due to the wide variety of petrochemical products, the chemical treatment processes vary widely, the petrochemical equipment is uneven, the utilization rate of petroleum is high and low, the composition of petrochemical wastewater is complex, and the concentration of pollutants varies greatly. Due to the characteristics of other sewage, the treatment cost is high. A large amount of chemical wastewater requires the simultaneous construction of production facilities and sewage treatment facilities, which reduces the profit margin of the enterprise. Therefore, the collection and treatment of petrochemical wastewater has always been a difficult problem for petrochemical enterprises.
