OBJECTIVE: To evaluate the disinfection of wastewater in China. METHODS: During the SARS epidemic occurred in Beijing, a study of different disinfection methods used in the main local wastewater plants including means of chlorine, chlorine dioxide, ozone, and ultraviolet was carried out in our laboratory. The residual coliform, bacteria and trihalomethanes, haloacetic acids were determined after disinfection. RESULTS: Chlorine had fairly better efficiency on microorganism inactivation than chlorine dioxide with the same dosage. Formation of THMs and HAAs does not exceed the drinking water standard. UV irradiation had good efficiency on microorganism inactivation and good future of application in China. Organic material and ammonia nitrogen was found to be significant on inactivation and DBPs formation. CONCLUSION: Chlorine disinfection seems to be the best available technology for coliform and bacteria inactivation. And it is of fairly low toxicological hazard due to the transformation of monochloramine.
OBJECTIVE: To evaluate the disinfection of wastewater in China. METHODS: During the SARS epidemic occurred in Beijing, a study of different disinfection methods used in the main local wastewater plants including means of chlorine, chlorine dioxide, ozone, and ultraviolet was carried out in our laboratory. The residual coliform, bacteria and trihalomethanes, haloacetic acids were determined after disinfection. RESULTS:Chlorine had fairly better efficiency on microorganism inactivation than chlorine dioxide with the same dosage. Formation of THMs and HAAs does not exceed the drinking water standard. UV irradiation had good efficiency on microorganism inactivation and good future of application in China. Organic material and ammonia nitrogen was found to be significant on inactivation and DBPs formation. CONCLUSION:Chlorine disinfection seems to be the best available technology for coliform and bacteria inactivation. And it is of fairly low toxicological hazard due to the transformation of monochloramine.
Authors: Ping Li; Li Liu; Jiaojiao Wu; Rong Cheng; Lei Shi; Xiang Zheng; Zhenxing Zhang Journal: Sci Total Environ Date: 2018-07-30 Impact factor: 7.963
Authors: María Fernández-Raga; Laura Díaz-Marugán; Marta García Escolano; Carlos Bort; Víctor Fanjul Journal: Environ Res Date: 2020-10-02 Impact factor: 6.498
Authors: Javier E Sanchez-Galan; Grimaldo Ureña; Luis F Escovar; Jose R Fabrega-Duque; Alexander Coles; Zohre Kurt Journal: J Environ Chem Eng Date: 2021-06-29