环境工程学报2024，Vol.18Issue(1)：130-138,9.DOI:10.12030/j.cjee.202309024
预氯化输水对表面停留性有机物及混凝除藻的影响
Effect of pre-chlorination on surface-adsorbed organic matter and coagulation for algae removal in water transportation
摘要
Abstract
Aiming at the pre-chlorination,a commonly used pre-oxidation method,the pivotal role played by surface-adsorbed organic matter(S-AOM)in this process on Microcystis aeruginosa was studied,the influence of S-AOM and algal oxidative stress on coagulation for Microcystis aeruginosa removal was also investigated.The results showed that pre-chlorination could determine the optimal chlorine dosage for achieving moderate pre-chlorination.Moderate pre-chlorination effectively promoted the desorption of S-AOM without causing harm to algal cells,thereby enhanced the subsequent coagulation-based algal removal.In addition,that algal cells subjected to moderate pre-chlorination might undergo programmed cell death during long-distance water transmission,and the continual leakage of intracellular organic matter occurred,which could still adversely affect the efficiency of algal removal during water treatment.Therefore,the programmed cell death of algal cells caused by pre-chlorination emerges as a critical factor to consider in enhancing coagulation-based algal removal processes.关键词
表面停留性有机物/预氯化/除藻/混凝Key words
surface-adsorbed organic matter/pre-chlorination/algal removal/coagulation分类
资源环境引用本文复制引用
倪蓉,胡承志,姜元承,李海燕,王茜,张长禄,吴佳萍,谢琤琤,张明顺,戚菁..预氯化输水对表面停留性有机物及混凝除藻的影响[J].环境工程学报,2024,18(1):130-138,9.基金项目
国家自然科学基金资助项目(52170014,51820105011) （52170014,51820105011）
长江生态环境保护修复联合研究第二期(2022-LHYJ-02-0303) （2022-LHYJ-02-0303）
