Ecological Aspects of Used-water Treatment: Biological activities and treatment processes

acclimatization acetate achieved acids activated sludge activated-sludge plants activated-sludge process aeration tank aerobic algae algal ammonia anaerobic digestion anoxic bacteria BOD load BOD removal cells cent cladocera compounds Control Fed conventional Darlaston degradation denitrification dissolved oxygen Eckenfelder effect efficiency effluent endogenous Engng Ext enzyme Escherichia coli extended aeration facultative filamentous flocculation flocs flow fungi Gaudy Gloyna glucose growth rate heterotrophic high-rate increase industrial inhibition kg BOD kinetics lagoons Leptocera mechanical metabolism methane Microbiol Minworth Minworth raw mixed liquor MLSS nitrate nitrification Nitrobacter nitrogen Nitrosomonas O₂ occur operation organic matter oxidation oxidation ponds Painter percolating filters pH value phosphorus photosynthesis population present Proc produced Purdue Univ pure culture purification reduced respiration retention period settlement settling sludge loading sludge-drying beds soluble species substrate surface suspended solids temperature treating uptake used-water treatment Waste Conf Wuhrmann Zoogloea ramigera