The abbreviation of biochemical oxygen demand is BOD, which is a comprehensive indicator for showing the oxygen demand of organics and other pollutant in water. Chemical Oxygen Demand (COD) is the amount of oxidant consumed when we use strong oxidizer to treat sewage water sample.

In order to promote and practice the concept of "happy running" of DSN Happy Running Group, employees actively signed up for the Xinyu Fairy Lake International Marathon on December 1, 2019. Nearly 10000 players from nine countries and regions, including China, Ethiopia, Kenya and Zambia, gathered he

What Chinese citizens are concerned about? The chart below drawn from research by Pew highlights which issues are of most concern to Chinese citizens, and which have increased most in importance over the previous year’s survey. In addition to the expected priority given to air pollution, it was i

Chinese Spring Festival is coming. DSN team wishes you a Happy New Year and good health!

NanoMem has developed a new ceramic membrane water treatment system for dyeing waste water. The dyeing waste water is treated by the original sewage treatment firstly, then enters the flat ceramic filtration membrane for advanced treatment, and finally reaches the emission standards.