Study on the treatment of complex water hardness using electrocoagulation coupled with electrodeposition - Yanlong Sun; Hangyang Feng; Qianwei Liang; Meijuan Bian; Weifeng Kong; Xingzhi Mao; Qianwen Wang; Chengzhi Zhou; Yanjun Xin; Liguo Shen (Process Safety and Environmental Protection, 2026)