1. Nitrogen relationship in biological treatment process;Balakrishnan,1969
2. Microbial nitrification and denitrification in concentrated wastes;Prakasam;Water Res.,1972
3. The use of ultrafiltration membranes for activated sludge separation;Smith,1969
4. Membrane sewage treatment system—potential for complete wastewater treatment;Bemberis;Winter Meeting Am. Soc. Agr. Eng.,1971
5. Application of membrane anaerobic reactor system for the treatment of industrial wastewaters;Li,1984