Abstract:

Ozone advanced oxidation+reverse osmosis(RO) process was used to reuse the concentrated water after reverse osmosis treatment in sewage plant, and the processing scale was 75 m³/h. The operating results showed that the membrane system was stable, the ozone oxidation had a removal rate of 53.5% for COD, the RO had a significant removal effect for pollutants, the electrical conductivity removal rate was 96.2%, the hardness removal rate was 93.5%, and the chloride ion removal rate was 86.3%, the COD removal rate was 98.0%, ammonia nitrogen and turbidity were basically completely removed and the outflow water entered the existing ultrafiltration production tank. The treatment cost was 3.09 yuan/t.

Key words: concentrated water, ozone, reverse osmosis

摘要：

利用臭氧高级氧化+反渗透（RO）工艺将污水车间经过RO处理后的浓水再深度处理进行回用，处理规模为75 m³/h。运行结果表明：膜系统稳定，臭氧氧化对COD的去除率为53.5%，RO对污染物去除效果显著，电导率去除率为96.2%、硬度去除率为93.5%、氯离子去除率为86.3%、COD去除率为98.0%、氨氮和浊度基本完全去除，出水进入已有超滤产水箱，处理成本为3.09元/t。

关键词: 浓水, 臭氧, 反渗透

CLC Number: 

• X703.1