Urban areas (residential, commercial, transportation), each of the points during the same rainfall in the same area, this study was evaluated by a survey to find out the basic data and the characteristics of non-point pollution on local characteristics was performed. To evaluate and compare a non-point source pollution concentrations. The conclusion of this study was to know the influence of non-point pollutants in initial rainfall. There was a difference during the same point was compared. The pollution levels were differences in the point-specific characteristics, the same point compared by rainfall when rainfall is low, the contaminant concentrations were high. Finally, when compared to the number of rainy days. The shorter the number of rainy days, the non-point pollutants were high.

The purpose of this sudy is to get characteristics of water quality in separated sewer overflows. In dry weather the water quality of sewage in the outfall of the separated sewer was an average BOD of 2.7 mg/L, CODmn of 4.9 mg/L, TN of 3.8 mg/L, TP of 1.9 mg/L, and SS of 5.3 mg/L, Because the quality except for TP was less than the water quality standard of wastewater treatment plant (WTP), a prevention facility was needed to prevent the sewage inflow to interceptor. When the separated sewer overflows (SSO) were overflowed, the maximum pollutant load was be found to be about from 2.7 to 5.4 times as a BOD base, about from 3.2 to 4.6 times as a SS base higher than average load. There was a big difference according to rainfall intensity and rainfall continuous time. In case the quality of SSO was less than water quality standard or water quality in dry season, SSO was required to discharge to the stream not to inflow to WTP by operating the floodgate in the outfall with water quality data using sensors, such as turbidity sensor, etc. Because removal efficiency by an intercepter load was calculated as low as about 10~20% as a BOD base, removal efficiency could be increased by installing a separated wall within the sewer.

The purpose of this study is to provide the data for sewage policy by selection of demending section and priority for interceptor renovation in Daejeon Metropolitian City. The order of priority for interceptor renovation in this city is Daejean-cheon, Youdeng-cheon, Gab-cheon, Youseong-cheon and Jinjam-cheon. Length of demanding section for renovation is 5.6 km for Daejean-cheon, 11.9 km for Youdeng-cheon, 13.8 km for Gab-cheon, 10.4 km for Youseong-cheon, and 3.9 km for Jinjam-cheon, respectively. The total length for interceptor renovation is 45.6 km. Assuming 30% as partial repair and 70% total repair on trenchless replacement, total renovation cost is calculated 98.2 billion won, 3.5 billion won for Daejeon-cheon, 1.2 billion won for Jinjam-cheon, 49.7 billion won for Gab-cheon, 4.3 billion won for Youseong-cheon, and 39.5 billion won for Youdeng-cheon.

중국의 2012년도 가정용 음식물처리기 수입 시장 규모는 1억호 이상의 가정 중 1%에도 못 미치는 보급률에도 불구하고 약 2400만 달러로, 현재까지는 가정용음식물 쓰레기에 대해서는 특별한 규제가 없으며 정부의 수거 및 재활용 계획이 일부 시범지역에 국한되어 있었으나 점차 확대될 전망으로 향후 큰 시장잠재력을 가지고 있음. 선호 가격대와 타겟에 대한 분석 이후, 분리수거가 활성화된 지역 중심으로 중국 하수관거의 특징 등을 고려한 기술을 채택한 제품을 개발하여 진출하는 것이 바람직함