7Kang Jiayu,Wang Mengxiao,Mi Linan and Xiao Zhonjun.Cascade Control of the PH in an Anaerobic Wastewater Treatment System.Bioinformaties and Biomedical Engineering,2009:1-4.
8Shinskey F.G.A self-adjusting system for effluent pH control.Spring joint Conference ISA,1973.
9B.Keikar,B.Pmtlefhrvdte.study of PH control procws using fuzzy modeling.Control Theory and Applications,1994:272-275.
10Papa R.Hu X.A Comparison of model and non-mlodel based controllers for pH control,Proceedings of the 13th world Congress.IFAC.Cmputer control,1996(5).
