Segregation of solid waste from a fish-processing industry: a sustainable action

Abstract Segregation techniques represent a sustainable alternative to minimize wastes of raw material in processing industries. This study considered the premise; its purpose was to use segregation techniques to determine the theoretical removal rate of solid compounds present in processing effluents, in order to support the sustainable development of the fish industry. The removal rates obtained for different treatments were evaluated for the parameters: total solids, organic matter and oils and greases, and the efficiency of the segregation of the effluent streams in the different stages of fish processing was evaluated through descriptive statistical analysis. The segregation recovered from 31% to 70% of total solids; from 15% to 97.50% of organic matter, and from 10% to 63% of oils and greases. These results indicates that the raw material can be used in new products, leading to reduced final-effluent concentration.

摘要：分选技术（Segregation techniques）是加工行业降低原材料损耗的可持续替代方案。本研究以此为前提，采用分选技术测定加工废水中固体复合物的理论去除率，以期为水产加工业的可持续发展提供支撑。本研究以总固体、有机物、油脂（oils and greases）为评价参数，对不同处理方式下的去除率进行了评估；同时通过描述性统计分析，评价了水产加工各阶段废水流股的分选效率。本次分选对总固体的回收率为31%~70%，对有机物为15%~97.50%，对油脂为10%~63%。上述结果表明，回收得到的原材料可用于新产品研发，从而降低最终排放废水的污染物浓度。