상하수도학회지 제33권 제4호 (p.259-268)

수돗물 위해요소 리스크 관리를 위한 물안전계획 적용 연구

A study on the application of water safety plans for the hazard risk management of tap water
키워드 :
Hazard,Reliability,Risk management,Water safety plan,Tap water,위해요소,신뢰성,리스크 관리,물안전계획,수돗물

목차

ABSTRACT
1. 서 론
2. 연구대상 및 방법
3. 연구결과 및 고찰
3.1 위해요소(hazards) 도출
3.2 위해요소 리스크 평가
3.3 시범 정수장 적용 사례 분석
4. 결 론
References

초록

One of the most effective methods to consistently ensure the safety of a tap water supply can be achieved by application of a comprehensive risk assessment and risk management approach for drinking water supply systems. This approach can be termed water safety plans(WSP) which recommended by WHO(world health organization) and IWA(international water association). For the introduction of WSP into Korea, 150 hazards were identified all steps in drinking water supply from catchment to consumer and risk assessment tool based on frequency and consequence of hazards were developed. Then, developed risk assessment tool by this research was implemented at a water treatment plant(Q=25,000 m3/d) to verify its applicability, and several amendments were recommended; classification of water source should be changed from groundwater to stream to strengthen water quality monitoring contaminants and frequencies; installation of aquarium to monitor intrusion of toxic substances into raw water; relocation or new installation on-line water quality analyzers for efficient water quality monitoring; change of chlorination chemical from solid phase(Ca(OCl)2) to liquid phase(NaOCl) to improve soundness of chlorination. It was also meaningful to propose hazards and risk assessment tool appropriate for Korea drinking water supply systems through this research which has been inconsistent among water treatment authorities. Key words: Hazard, Reliability, Risk management, Water safety plan, Tap water