In recent years, the continuous improvement of industrial wastewater treatment process has played an important role in improving our water environment. In general, membrane technology, iron-carbon micro-electrolysis technology, Fenton and Fenton-like oxidation, ozone oxidation, magnetic separation, plasma water treatment, electrochemical oxidation, photochemical oxidation and scwo ) Technology quite popular. Industrial wastewater technology innovation of these 10 major technology has been favored China started its treatment of wastewater pollution relatively lately compared with western developed countries. Based on the experiences of foreign advanced treatment technologies, China has introduced and developed a large number of new wastewater treatment technologies based on the national key scientific and technological issues. Some of the projects have been Reached the international advanced level. The commissioning of these new technologies has played a crucial role in alleviating the serious water pollution in China and improving the water environment. First, the status of China's industrial wastewater In recent years, China's total industrial waste water emissions showed a downward trend year by year. In 2010, industrial wastewater emissions were 23.75 billion tons; in 2015, it was reduced to 19.95 billion tons. In 2015, China's industrial wastewater discharge, the chemical industry, paper, textile and coal industry wastewater discharge accounted for almost half of the total, is a large industrial wastewater discharge. In recent years, China's industrial wastewater treatment volume reached 300-370 million tons, the treatment rate of about 62%, although significant progress has been made, but there is still much room for improvement. Second, the following is the introduction of the latest 10 kinds of industrial wastewater treatment technology and analysis Membrane technology Membrane separation method commonly used microfiltration, nanofiltration, ultrafiltration and reverse osmosis and other technologies. As membrane technology does not introduce other impurities in the process of treatment, can achieve the separation of macromolecules and small molecules, it is commonly used in the recovery of a variety of macromolecular raw materials. Such as the use of ultrafiltration technology to recycle printing and dyeing wastewater polyvinyl alcohol slurry and so on. At present, the main difficulties in promoting the application of membrane technology engineering are the high cost, short life span, easy contamination and scale fouling. With the development of membrane production technology, membrane technology will be more and more applications in the field of wastewater treatment. 2. Iron carbon micro-electrolysis technology Iron-carbon micro-electrolysis is the use of Fe / C primary battery reaction principle of waste water for the treatment of good technology, also known as electrolysis, iron filings and so on. Ferric-carbon micro-electrolysis is a combination of electrochemical redox, electrochemical enrichment of flocs, coagulation of electrochemical reaction products, adsorption of freshwater flocs, and bed filtration, among which the main effects Redox and electric attachment and aggregation. When iron filings are immersed in waste water containing a large amount of electrolytes, numerous tiny galvanic cells are formed. After the coke is added to the iron filings, contact between the iron filings and the coke particles further forms large primary batteries, so that the iron chips are subjected to corrosion on the primary batteries On the other hand, it was corroded by Ohara batteries and accelerated the electrochemical reaction. This method has a wide range of applications, treatment effect is good, long life, low cost and easy operation and maintenance, and many other advantages, and the use of scrap iron as raw material, do not consume power resources, with "waste management" significance. At present, iron carbon micro-electrolysis technology has been widely used in printing and dyeing, pesticides / pharmaceuticals, heavy metals, petrochemicals and oil and other waste water and landfill leachate treatment, and achieved good results. Fenton and Fenton-like oxidation method The typical Fenton reagent is catalyzed by Fe2 + H2O2 decomposition generated? H, which led to the oxidative degradation of organic matter. Due to the long time required to treat wastewater with Fenton process, the amount of reagent used is large, and excess Fe2 + will increase the COD in the treated wastewater and cause secondary pollution. In recent years, people introduced UV light and visible light into Fenton system and studied the use of other transition metals instead of Fe2 +. These methods can significantly enhance the oxidative degradation of organic substances by Fenton reagent, reduce the dosage of Fenton reagent and reduce the processing cost, collectively referred to as Fenton reaction.