Research on the Organic Biodegradability of Secondary Effluent Treated by Ozonation
臭氧氧化二级出水有机物可生化性研究

The secondary effluent of three WWTPs was treated by ozonation to investigate organic biodegradability enhancement.The bulk experimental method was used.Ozone adding dosage was controlled to be 2,4,6,8,10 mg/L by adjusting the adding time.Results showed,UV_254and SUVA(UV_254/DOC)decreased with the increasing of the ozone dosage.When ozone adding dosage was 6 mg/L,UV_254 and SUVA decreased about 54.4% and 56.6% respectively;while BOD_5/COD,BDOC and BDOC/DOC were improved above 30%,360% and 360% respectively....