CHARACTERIZATION AND COD FRACTIONATION OF DOMESTIC WASTEWATERS

Results of a comprehensive study are reported for wastewater character ization in relation to modelling and design of biological nutrient rem oval systems for the Metropolitan Area of Istanbul. Domestic sewage qu ality was experimentally assessed in terms of major polluting paramete rs. Size distribution and calculation of significant ratios such as BO D5:COD and COD:N were used to evaluate the mer it of candidate physica l, chemical and biological treatment alternatives. COD fractionation w as effected to assess biological treatability and to yield the necessa ry process components to the recent modelling approaches. (C) 1997 Els evier Science Ltd. All rights reserved.