secondary sewage treatment

基本解釋

A secondary sewage treatment system used in smaller communities.
一個二級污水處理系統(tǒng)，在較小的社區(qū)。
Presently, active sludge method, or the establishment of secondary sewage treatment plants has been mainly adopted to treat urban sewage.
目前，對城市污水的處理主要采用活性污泥法即興建城市二級污水處理廠。
An experiment was conducted to examine ozone disinfection of effluents from a municipal secondary sewage treatment plant. Affecting factors such as pH, contact time and ozone dose are studied.
介紹了臭氧在水中的化學特性和消毒的基本原理，通過試驗研究了臭氧在城市污水深度處理消毒中的反應過程，認為臭氧在城市污水處理二級出水中的消毒是可行的。