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김웅수(Woongsoo Kim),송일석(Ilseok Song),신종현(Jonghyun Shin),오천환(Cheonhwan Oh),김은아(Eunah Kim),김극태(Keugtae Kim),김현자(Hyunja Kim),김종수(Kim, Jongsu Kim),최윤호(Yunho Choi) 한국환경보건학회 2017 한국환경보건학회지 Vol.43 No.3
Objectives: The pollution status of heavy metals within the soil was investigated with an aim to establishing a sustainable soil environment within parks and amusement facilities installed in urban areas of Gyeonggi–do Province. Methods: As sampling sites, 14 locations were selected from a city with a number of factories near a residential area, a residential area, and a children s park in a city with mixed green areas. Seven kinds of heavy metals, including Cd, Pb, and Hg, and the pH of soil were analyzed three times by inductively coupled plasma optical emission spectroscopy (ICP-OES) and atomic absorption spectrometer (AAS). Results: In this study, the pH of the samples from the residential park and industrial park showed 5.7-6.5 and 5.9-7.0, respectively. The overall mean concentration (mg/kg) of heavy metals was Zn (132.8), Ni (73.0), Cu (47.4), Pb (35.9), As (4.84), Cd (0.39), and Hg (0.07), indicating that these concentrations of heavy metals were lower than those for the area 1 standard of soil pollution concern criteria. In addition, the sampling sites in the residential area and the industrial area also showed the same tendency for concentration distribution. Conclusions: We found that the soil pollution class (SPC) of some spots were over 200, which are third and fourth classes. In order to manage a sustainable soil environment in a city park, it is suggested that local governments, the management bodies for these parks, need to manage, supervise, and investigate soil pollution and quickly replace contaminated soil.
지능형 하수처리시설 구축을 위한 하수처리 자가 진단 웹 애플리케이션 연구
김지남(Jinam Kim),김서현(Seohyun Kim),장호진(HoJin Jang),전환돈(Hwandon Jun),김극태(Keugtae Kim) 한국방재학회 2022 한국방재학회논문집 Vol.22 No.6
하수처리시설은 에너지 다소비 시설로 분류되어 에너지 절감 대책의 필요성이 대두됨에 따라 환경부는 2030년까지 에너지 자립률 50%까지 달성하기 위한 「공공하수처리시설 에너지 자립화 기본계획」을 수립하였다. 따라서 본 연구는 제거율 기반 하수처리 자가 진단 애플리케이션 개발을 통해 하수처리시설 현장 운영자에게 시뮬레이터 활용방안을 제공하고 자가 진단 결과에 대한 조치사항을 제시하는 하수처리시설의 ICT 기반 자가 진단 웹 애플리케이션 연구를 진행하였다. Massflow3 시뮬레이터를 이용하여 BOD, SS, T-N, T-P에 대한 비정상상태의 조치사항 및 유효성 검증을 진행하였고 웹 기반 자가진단 알고리즘 제작을 통한 운영자가 시뮬레이션의 결과를 토대로 공정제어를 쉽게 할 수 있도록 구현하였다. As sewage treatment facilities are classified as energy-consuming facilities and the need for energy-saving measures has emerged, the Ministry of Environment has established the Basic Plan for Energy Self-Reliance of Public Sewage Treatment Facilities to achieve 50% energy independence by 2030. Therefore, this study conducted an ICT-based self-diagnosis web application study for sewage treatment facilities that provided a simulator utilization plan to site operators of sewage treatment facilities and suggested measures for the results of self-diagnosis through the development of a removal rate-based sewage treatment self-diagnosis application. Using the Massflow3 simulator, the measures and validation of abnormal conditions for BOD, SS, TN, and TP were conducted, and a web-based self-diagnosis algorithm was implemented to enable the operator to easily control the process based on the simulation results.