International Journal of Scientific and Research Publications, Volume 5, Issue 4, April 2015 1 ISSN 2250-3153 www.ijsrp.org Group Decision Making For Safe Disposal of Commercial Fish Waste Dr.R.Sophia Porchelvi 1 , P.Jamuna Devi 2 (1) Associate Professor, Department of Mathematics ADM college for women (Autonomous) ,Nagapattinam sophiaporchelvi@gmail.com, (2) Assistant Professor, Department of Mathematics, EGS Pillay Engineering College, Nagapattinam pjamunadevi@gmail.com Abstract: The present study primarily concentrates on the waste generated by the fisheries sector and its effect on the human health and environment. Fish wastages attract pathogens, create bad odor, general aesthetic degradation, contamination of water resources and other hazards. Therefore decision makers move for some alternative methods of disposing commercial fish wastages. Fuzzy mathematical modeling plays an important role in decision making techniques. In this paper we use fuzzy multi criteria group decision making method VIKOR to help the municipal authorities to choose the right alternative method for the safe disposal of commercial fish waste. Key words: Fish Waste, alternative, criteria, VIKOR, Fuzzy MCDM, Nagapattinam Introduction: The word waste means that the substance of concern has no apparent value. The hazard or noxious of the waste determines how a waste should be managed The bio degradable waste includes all plants, animal, human products, the kitchen waste at every home, restaurants, agricultural farms, industries, vegetable markets etc., In coastal area fish waste is the main bio degradable waste which mainly contains organic matters. Traditional composting methods are essentially a biological recycling technology which is being revised and improved with new knowledge of environmental biotechnology. The disposal of these huge quantities of fish waste can create larger negative impact on environment. Therefore alternative methods, ecologically acceptable methods of disposal or reutilization of fish waste has to suggested and followed. The aspects of the problems are usually represented in the form of multiple criteria which often creates confusion among the decision makers. In order to raise awareness between the objectives and compare the difference among the alternatives in an optimizing framework, fish waste management decision making may depend on multiple criteria decision making (MCDM) models which promotes participation of all decision makers and synthesis of a wide variety of information. The components involve both quantitative and qualitative factors. Review of literature: MADM problem can be associated with a problem of choice or ranking of the existing alternatives (Zimmermann, 1987) (1). Bellman and Zadeh (1970) introduced the approach regarding decision making in a fuzzy environment (2). Baas and Kwakernaak (1977) applied the most classic work on the fuzzy MADM method and it was used as a benchmark for other similar fuzzy decision models (3). Fan et al. (2002) proposed a new approach to solve the MADM problem (4), where the decision makers were instructed to give his/her preference on alternatives in a fuzzy relation. A systematic and consistent decision making approach to dredging and disposal including contaminated sediment management have been developed in Ref. 5. A multi- objective integer programming approach to select hazardous waste treatment and disposal facilities, and transportation routes have been employed in Ref. 6 Radioactive waste attracts a special consideration in hazardous waste literature. In this research stream, Ref. 7 proposed a decision support system for the identification of optimal remedial strategies to restore water systems after accidental introduction of radioactive substances. Ref. 8 used this decision support system in their study searching for optimum remedial strategies for contaminated lakes. One can deduce from Ref. 9 the use of multicriteria decision analysis with an outranking methodology. A review of existing decision-making