The diphenyl-thiocarbazone extraction and spectrophotometry were developed for indirect determination of residual chlorine in water distribution system.

建立了采用双硫腙萃取光度法间接测定管网水中余氯的新方法。

This system is one kind of simple water treatment line which is used to wipe off the macroaggregate,seston,peculiar smell,residual chlorine and bacteria of the raw water.

该机是一种简易的水处理设备,能有效除去大颗粒,悬浮物,以及原水的异味、余氯并能除去常见的细菌.