Research on the automatic flocculant adding in was tewater treatment based on digital image proces s ing technique
Guo Jianjia, Fan Xinnan, Bu Guihua, Guo Jianxin, Zhang Zhuo
INDUSTRIAL WATER TREATMENT . 2008, (5): 51 -53 .  DOI: 10.11894/1005-829x.2008.28(05).51