Application for waste hotspots investigation in the frozen shrimp upstream supply chain using environmental value stream mapping (E-VSM)

Department of Industrial and Systems Engineering, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia

^* Corresponding author: deakrisnasari@gmail.com

Abstract

The waste that frequently results from the frozen shrimp industry includes the use of large amounts of clean water for processings, the production of large amounts of wastewater, the production of waste materials, and the utilisation of electricity from processings, all of which have an negative effect on the environment. This has indeed created improvement strategy with environmental integration as a way out to reduce waste hotspots in the frozen shrimp supply chain. The case study addresses a frozen shrimp company in Indonesia that encounters difficulties in natural resources utilization. Environmental Value Strseam Mapping (E-VSM) is used for the framework of a model to analyse upstream supply chain flows and to identify value added and non value added activities. Coagulant as a by-product from shrimp shells and seasoned shrimp powder from shrimp heads are used to potentially boost the added value of shrimp waste. Identifying and eliminating waste points in the frozen shrimp upstream supply chain will result in a 78% reduction in electricity use, a 68% reduction in water use, a 30% reduction in distribution costs, a 69.6% reduction in non-value-added activities, and a complete elimination of carbon emissions from the distribution process when compared to current conditions.