1. Use of pH as control parameter for aerobic/anoxic sludge digestion;Al - Ghusain;J. Environ. Eng.,1995
2. Review on sequencing batch reactors;Al - Rekabi;Pak. J. Nutrition.,2007
3. ORP and pH based control of SBR cycles for nutrient removal from wastewater;Basu;Water Environ. Res.,2006
4. Operating strategies for variable flow sequencing batch reactors;Bungay;Water Environ. J.,2007
5. Batch operated activated sludge plant for production of high effluent quality at small works;Chambers;Water Sci. Tech.,1993