생태독성 배출기준 강화 사업장의 염 배출 특성 = Salt discharge characteristics of wastewater discharge site which adapted enforced whole effluent toxicity legal standard

다국어 초록 (Multilingual Abstract)

Salt Discharge Characteristics of Wastewater Discharge Site which Adapted Enforced Whole Effluent Toxicity Legal Standard

Soon-Heum Kim

Department of Environmental Health,
The Gradute School of Venture,
Hoseo University
Seoul, Korea

(Supervised by professor Sang-Houck Lee )

In this study, discharged effluent from 24 sites which will be subjected to enforced whole effluent toxicity legal standard since 2016 where 4 kinds of industrial categories, plating facilities etc. analysed whole effluent toxicity characteristics by industrial classification.
Main research topics include evaluated the operational status of whole effluent toxicity tests, determine the cause and wastewater treatment facilities, which were obtained based on the following conclusions.
The sites exceeded whole effluent toxicity legal standard at the effluent salinity was high and the main reason of exceed caused by salt.
The sector showed the largest deviation between the discharge facilities within the same sector is a plating facilities and the result of analysis of the effluent salinity, conductivity, total dissolved solids were high at the inorganic chemical manufacturing facility.
Inorganic chemical manufacturing facility where analysed high salinity were caused from salt which included raw materials and wastewater when clean up during manufacturing process.
Under the whole effluent toxicity tests, 3 sites of inorganic chemical manufacturing facility sites, 2 sites of plating facilities, 2 sites of textile dying exceeded legal standard, it is possible to summary as follows.
The main problem with operating assessment for wastewater treatment facilities accounted for the largest proportion processing facility operating immature. Overdose of wastewater treatment chemicals could be increase the concentration of dissolved solids, which could be caused whole effluent toxicity. It is necessary to determine exact chemical dose and proper operation method for efficient wastewater treatment system operation.
It has high relationship between electrical conductivity and toxicity as a result of analyse but it also has some differences by industrial facilities.
So, it was confirmed that the whole effluent toxicity is caused by other factors, as well as salt.
It have ion exchange resin, vacuum evaporation facilities or replace raw materials to reduce toxicity in case of caused by salt but they are applied on a limited basis because it required high operation and installation cost.
Therefore, toxicity reduction evaluations were applied differently even same industrial categories because intensity and cause of toxicity. It is necessary to educate and public relations by performing toxicity reduction evaluations where similar problems in the same industrial categories.

목차 (Table of Contents)

• Ⅰ. 서 론 1
• 1. 연구 배경 및 목적 1
• 2. 선행 연구 2
• Ⅱ. 이론적 배경 5
• 1. 수질관리 및 평가 방법 5
• 2. 국외의 생태독성 관리제도 현황 7
• 3. 국내 생태독성 관리제도 9
• 4. 업종별 현황 12
• 가. 섬유염색 및 가공시설 12
• 나. 기타 분류되지 아니한 화학제품 제조시설 17
• 다. 도금시설 18
• 라. 기초 무기화학물질 제조시설 21
• Ⅲ. 실험 대상 및 방법 23
• 1. 실험대상 선정 23
• 2. 실험 방법 24
• 가. 방류수 분석 24
• 나. 물벼룩을 이용한 급성독성 시험 25
• 다. 전기전도도와 생태독성(TU)과의 상관성 검토 27
• Ⅳ. 결과 및 고찰 30
• 1. 업종별 방류수 분석 결과 32
• 가. 섬유염색 및 가공시설 32
• 나. 기타 분류되지 아니한 화학제품 제조시설 34
• 다. 도금시설 37
• 라. 기초 무기화학물질 제조시설 40
• 2. 폐수처리시설 운영 평가 43
• 3. 고 찰 45
• V. 결 론 56
• 1. 결 론 56
• 2. 향후 연구과제 59
• 참고문헌 60
• 영문초록 64