废水处理原则 废水处理原则Wastewater Treatment Principles and Regulations
Sewage is the wastewater released by residences, businesses and industries in a community. It is 99.94 percent water, with only 0.06 percent of the wastewater dissolved and suspended solid material. The cloudiness of sewage is caused by suspende…… http://www.samsco.com.cn/info/330.htm