Analysis of Discharge Characteristics of Non-point Pollutant According to Type of Industrial Area Production Item

The purpose of this study is to establish treatment direction of non - point pollutant source in production item type industrial complex by analyzing treatment efficiency and characteristics according to characteristics of industrial complex during non - point pollution source treatment. As a result, the treatment efficiency of the field suspended solid(SS) material producing food and polyvinyl chloride(PVC) type is more than 90 %, and the treatment efficiency is less than 80 % in the remaining polyvinyl chloride(PVC) production, metal production, and chemical manufacturing production area. It is considered that the efficiency of treatment of suspended solids is low due to low industrial pollution of influent water. It is considered that the efficiency of treatment of suspended solids is low due to low industrial pollution of influent water. The efficiency of biochemical oxygen demand(BOD) treatment seems to be relatively high in an industrial complex area that deals with an inorganic component rather than an area that deals with an organic substance or a chemical substance, and it is confirmed that a place using a high specific gravity material such as a metal has a treatment efficiency of 90 % or more There is a number. The treatment efficiency of total nitrogen(T-N) showed more than 50 % efficiency in most areas, but the treatment efficiency of food producing area was 2.4 %. The results of this experiment show that the method of water quality improvement should be applied differently according to the product production characteristics of each industrial complex.