Anjali Khambete
Sardar Vallavbhai National Insitute of Technology, India
Title: Application of MCDM – TOPSIS for determination of performance Index of sewage treatment plants - A case study Gujarat India
Biography
Biography: Anjali Khambete
Abstract
The health of city is massively influenced by its sanitation facilities and the way of maintaining the hygienic life of population. Sewage treatment plants (STPs) plays a vital role in the municipal hygiene. For developing countries, parameters like inadequate funds, longstanding technology, deficit technical manpower and ignorance towards operations and maintenance etc. causes to reduce efficiency of sewage treatment plants. According to Vandeweerd et al. (1997), more than 90% of sewerage in the developing world is discharged directly into rivers, lakes, and coastal waters; and breaking down of STPs also contribute in this discharge. At present there is no any method being adopted to evaluate the efficiency of STPs. The Fuzzy Multi Criteria Decision Making (FMCDM) approach helps to rank when there are ‘n’ no of criterions to evaluate the ‘j’ no of objects. FMCDM approach also helps to simulate when there is a need of upholding the situations. The present research work is carried out in the state of Gujrat of India. Total six STPs having nearly equal treatment capacity were selected to inspect. The performance was monitored on the basis of temperature, Total Dissolved Solids (TDS), Suspended Solids (SS), Biological and Chemical Oxygen Demand (BOD and COD), Oil and Grease, pH and Chlorides. The monitoring, sampling and characterization was carried out as per APHA standards and for raw as well as treated sewage. Applying FMCDM Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) the efficiency has been evaluated. Out of six the one at Bamroli has identified as rank I with efficiency of 96%.