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송준상,문형극,이홍근 ( Jun Sang Song,Hyung Keuk Moon,Hong Keun Lee ) 한국물환경학회 1997 한국물환경학회지 Vol.13 No.3
Samkwang Aqua-Clear, Inc. has developed the fluidized bed biofilm method using the SAC Bio-Carrier made of waste tire powder and called Bio-SAC Process. The removal rate of organic matter of this method can treat the wastewater 4 times faster than the conventional activated sludge method and it has specially designed aerobic bio-reactor filled with 20% SAC Bio-carrier of the volume of reactor. We have done the application research for the municipal sewerage treatment and the results are summarized as follows: The removal rate of biochemical oxygen demand(BOD) and chemical oxygen demand(COD-Mn) was around 90% and the Hydraulic retention time(HRT) of the aerobic bio-reactor is 1.5 hours. Although the suspended solids(SS) concentration of raw water was very high and varied widely because this method has no primary sedimentation tank, its concentration of the effluent is only around 10㎎/L. Also nitrification reaction was occurred and the removal rate of total kjeldahl nitrogen(TKN) was around 80% during the short HRT. The removal rate of total phosphorus was around 70% with chemical coagulation process using the alum and polymer. Its rate was higher than that of the conventional activated sludge method. The bio-film microorganism grew abundantly on the surface of the SAC Bio-carrier. Epistylis spp. was observed as a predominant species, and the depth of the biofilm was 0.3∼1.0㎜. This species is one of the peritrichita that grow well in the aerobic reactor at the good treatment condition. The treatment coefficient(T₁) of Bio-SAC^R process from the Grau`s multicomponent degradation model was four times higher than that of the activated sludge method. This SAC treatment method can not only reduced the 50% of the building area of the wastewater treatment plant, but also reduced the 20% of the capital cost. Because the removal rate of the total phosphorus is much higher than the activated sludge method, this treatment method is more effective process as the tool of the prevention method for the point source control of the eutrophication.
정효준,황대호,방승석,박수연,이홍근,Jeong Hyo-June,Hwang Dae-Ho,Bang Seung-Seok,Park Sue-Yeon,Lee Hong-Keun 한국환경보건학회 2002 한국환경보건학회지 Vol.28 No.1
This study was carried out to provide environmental information using geographic information system for the environmental manager engaged in governmental office. Point and nonpoint sources were classified by each small watershed and an administrative district. ArcView and ERDAS software were used to develop environmental information system. Small watershed was extracted into the DTEM using HEC-geoHMS which is ArcView extension. Study area was divided into 7 small watershed. Point sources were constituted as cattle, milk cattle, swine, and poultry. Land use was divided into forests, rice paddies, residential sites et al. User interface was designed to search information easily for the nonprofessional GIS users.
탐진강의 총량규제를 위한 오염원별 수계${cdot}$행정구역 허용부하량과 삭감부하량 할당에 관한 연구
황금록,황대호,백도현,이홍근,Hwang Kum-Lok,Hwang Dae-Ho,Paik Do-Hyeon,Lee Hong-Keun 한국환경보건학회 2004 한국환경보건학회지 Vol.30 No.5
This study is to calculate Allocation of Pollution Discharges by administrative region for the TMDL (Total Maximum Daily Load) on Tamjin River. TMDL has the water quality target and value ($BOD_5$, 1 ppm) and is calculated by the QUAL2E model. The expected TMDL for Tamjin River is 1,532,360 kg/day. The calculation showed that the main pollutants are due to the non-point sources in Tamjin River and the aqua-farms are another important sources near the bay. And sources from population and livestock should be reduced, especially aqua-farm source should be managed and eliminated first which is over 14,000 ton/day.