Chlorination should take place after any sedimentation or filtration process.
氯化处理应该在沉降或过滤过程之后进行。
2
Shanghai's urban water purification technology, including the adoption of chemicals, mixing, flocculation. sedimentation, filtration, chlorination. etc. is explained.
介绍上海城市净水工艺，包括：净水药剂的采用、混合、絮凝、沉淀、过滤、氯化等。
3
The results shown that pre-chlorination, filtration and disinfection were the key processes in controlling disinfection by-products (DBPs) formation.