SELECTION OF WASTEWATER TREATMENT PROCESS BASED ON ANALYTICAL HIERARCHY PROCESS

This paper presents an application of the analytical hierarchy process for selection of best wastewater treatment process. The analytical hierarchy process is one of the best ways for deciding among the complex criteria structure in different levels. In current practice, in Karnataka state, India (except Bengaluru) the wastewater treatment facilities are being constructed with waste stabilization ponds / aerated lagoons. These methods are being ad opted due to less operation and maintenance cost of the plants. At present, the urban local bodies are maintaining the wastewater treatment facilities. As there is no skilled labor for proper operation and maintenance of the treatment facilities in local bodies, it has been made compulsory to opt the waste stabilization ponds / aerated lagoons which offer less operation and maintenance cost wit h very low operator attention. The construction of waste stabilizations ponds / aerated lagoons requires maximum land area.