A study on AHP application of selection method for the best treatment technology of public sewage treatment works

Abstract

Various kinds of processes are used in the Public Sewage Treatment Works(PSTWs) in order to achieve water quality criteria and TMDL in the watershed. The performance of the existing processes at PSTWs depends on influent characteristics, effluent quality target, amount of sludge production, power cost and other factors. In present, the Selection Guideline for the Available Treatment Process of PSTWs is used for a process decision in the country. But there are some problems regarding redundancy of assessment factors and complexity of assessment procedure in the guideline. In this study, we did a test application of AHP for process selection of PSTWs, which propose is to simplify assessment factors such as pollutant removal amount, sludge generation, electricity consumption, stability of operation, convenience of maintenance, easiness of existing process application, installation cost, and operating cost concerning of environmental factors, technical factors and economical factors. According to the study, the PSTWs selection procedure guideline can be improved using application of AHP method.

Grid-Based Flood Risk Mapping Considering Indices of Regional Characteristics

“…그러나 인류의 발전은 양날 의 검과도 같이 지구온난화, 기후변화, 생태계 파괴 등과 같은 다양한 형태로 우리에게 위협을 가해왔다 (Yu, 2017 (Kim et al, 2012;Park, 2012;Song, 2012;KEI, 2014 ;Park et al, 2014;Cho, 2015;Han et al, 2015;Hwang, 2015;Nam, 2015 (Son et al, 2013). 이와 같이 위험도뿐 만 아니라 기후변화의 취약성 평가에 대한 연구는 최근 들어 국내외적으로 활발하게 진행되고 있다 (IPCC, 2001;Kelly and Adger, 2000;Moss et al, 2001;Brooks et al, 2005;Eriksen and Kelly, 2007 (Lee and Chang, 2014;Shin et al, 2014;Choi et al, 2015;Oh et al, 2015;Jeong et al, 2016;Park et al, 2016;Shin, 2016 Fig. 1(a)], 설계빈도에서의 침수심[ Fig.…”