우리나라 공공하수처리시설의 TOC 배출특성 및 관리방안 연구

Under Korea’s Enforcement Decree of the Framework Act on Environmental Policy amended in 2013, total organiccarbon (TOC) is newly added as water quality parameter to assess organic pollution in water and aquatic ecosystem. To meet theTOC requirement and improve quality of effluent discharged into public watershed, it is also necessary to develop standards forTOC in effluent from public sewage treatment works (PSTWs).
In this study, we reviewed the characteristics and removal efficiency of TOC in influent and effluent of PSTWs. The study foundthat phosphorus treatment process removed not only soluble phosphorus but also a portion of TOC remaining after the secondarytreatment process. TOC concentration in effluent from PSTWs operated in tandem with industrial wastewater treatment workwas higher due to influx of insoluble substances from the industrial wastewater treatment work.
In order to lay a foundation for the management of TOC from PSTWs, it is necessary to carry out research on TOC from differentperspectives. For example, studies on the generation mechanism of TOC and the impact of TOC on drinking water resources,assessment of effluent qualities through monitoring, and development of measures to control TOC for the preservation of aquaticecosystem are needed.