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멸종위기종 서식처에 조성된 생태적 수질정화 비오톱 시스템의 수질정화 및 생태복원 효과 -금개구리 서식처인 안터 저수지 생태공원 사례를 중심으로-
변찬우 ( Chan Woo Byeon ) 한국환경복원기술학회(구 한국환경복원녹화기술학회) 2010 한국환경복원기술학회지 Vol.13 No.6
A Sustainable Structured wetland Biotop (SSB) system was planned, designed, and finally constructed, and maintained in the An-teo Reservoir ecological park, which is the habitat of the endangered Gold-spotted Pond Frog. The system purifies polluted water of An-teo Reservoir which flows from up to bottom within the system. Water was sampled once a month at the inlet and at the outlet from December, 2009 to August, 2010. BOD5, SS, T-N and T-P were analyzed. Average influent and effluent BOD5 concentration was 2.9 and 1.0 mg/L, respectively, and BOD5 removal was 67%. SS concentration of influent and effluent averaged 18.1 mg/L and 2.5 mg/L, respectively, and SS abatement amounted to 86%. Average influent and effluent T-N concentration was 0.426 mg/L and 0.147 mg/L, respectively, and T-N retention was 66%. T-P concentration of influent and effluent averaged 0.071 mg/L and 0.022 mg/L, respectively, and T-P removal amounted to 68%. Plant and frog species of the system were monitored during the period. Amphibia and reptiles provided 7 species and 4 families including the Endangered Gold-Spotted Pond Frog (Rana chosenica) which also lives in the system. Twenty-six plant species were naturally introduced into the system, however, they didn`t make up a significant portion of the plant populations compared with the planted species. The endangered plants, Bladderwort (Utricularia vulgaris var. japonica) and Euryale ferox were observed in An-teo Reservoir as well as in the system.
분산형 저류지 생태환경복원 설계 -신정3지구 생태환경저류지에 적용된 생태적수질정화비오톱(SSB) 시스템을 중심으로-
변찬우 ( Chan Woo Byeon ) 한국환경복원기술학회 2013 한국환경복원기술학회지 Vol.16 No.1
The design process of ecological and environmental detention system located in the housing district of Sinjeong 3-jigu in Seoul are as follows. At stage one, a new dispersal detention was created in the neighborhood park located near the originally planned detention. From this, the amount of storage of this dispersal detention system was enlarged from 28,337m1/d. the initial storage amount, to 33,606m3/d as the post storage amount, responsible to the amount of rainfall which happens every 100 years. in particular, the SSB (Sustainable Structured wetland Biotop) system, which was the New Excellent Technology verified by the Ministry of Environment (No. 258) was applied to enhance ecological functioning and water quality with the detention as a constructed wetland. At stage two, the treatment plans for non-point pollutant source occurred at the initial period of rain, flowing into the detention System were built for purifying the water of the retention pond at the base of the detentions, and the water-circulation system was designed at the dispersal detentions on the period of regular rainfalls. The non-point pollutant source flowing into detention site was calculated as 11,699m3/d flowing down from seven small watersheds, which occurred at the initial period of rain. In particular the SSB systems improved the average efficiency of the water processing performance to BOD 60%, SS 90%, T-N 30%, T-P 60%. At stage three, the ecological network and biological diversity were strongly considered so that it brought the residents with amenity places. In particular, the dispersal detentions were successfully designed to restore the ecological habitat of endangered plant and animal species such as narrow-mouthed.
하수처리수의 재이용을 위한 처리습지 및 도시 상류하천 생태환경복원
변찬우 ( Chan Woo Byeon ) 한국환경복원기술학회 2014 한국환경복원기술학회지 Vol.17 No.5
The ecosystem of Jaemin stream, flowing into the center of Gongju-si, had been damaged by low water quality and lack of water quantity of the steam. However, after applying the SSB (Sustainable Structured wetland Biotop) system to the flood plain and the upstream of Jaemin stream, the efficiency of ecological water purification and ecological restoration are as follows. Through the constant maintenance and monitoring from year 2009 to year 2013 after restorative design and construction the average influent concentration of BOD5 was 4.2 mg/L, and the average effluent concentration was 1.8 mg/L, reaching ecological water purification rate of 57%. As for the T-N, the average influent concentration was 9.983 mg/L, and the average effluent concentration was 6.303 mg/L, showing the rate of 37%. For the T-P, the average influent concentration was 0.198 mg/L, and the average effluent concentration was 0.098 mg/L, being the rate of 51%. The vegetation of Jaemin stream monitored for 2 years after the restoration was composed of 51 species in 28 families which show high ratio of planted native species. As for the animals in the site, 5 species in 3 families of reptiles and amphibians, 34 species of 23 families of birds, and 3 species in 2 families of mammals were monitored, indicating that the bio-diversity of the site has improved, as well.
경안천 고수부지에 조성한 금어천 생태적수질정화비오톱 시스템의 수질정화 및 생태복원 효과
변찬우 ( Chan Woo Byeon ) 한국환경보건기술학회(구 한국환경복원녹화기술학회) 2010 한국환경복원기술학회지 Vol.13 No.3
A Sustainable Structured wetland Biotop (SSB) system was constructed on the floodplain of Kyungan stream in December, 2006. It purifies polluted water of Keumeo stream which flows into the stream. Water were sampled once a month at inlet and outlet from December, 2007 to December, 2008. BOD5, SS, T-N and T-P were analyzed. Plant and fish species of the system were monitored twice during the period. Average influent and effluent BOD5 concentration was 6.2 and 2.2 mg/L, respectively and BOD5 removal was 50.8%. SS concentration of influent and effluent was averaged 10.1mg/L and 1.5mg/L, respectively and SS abatement amounted to 77.0%. Average influent and effluent T-N concentration was 4.9mg/L and 2.9 mg/L, respectively and T-N retention was 50.8%. T-P concentration of influent and effluent was averaged 0.386mg/L and 0.107mg/L, respectively and T-P removal amounted to 77.0%. Twenty two plant species were naturally introduced into the system, however, they didn`t make up a significant portion of the plant populations compared with the planted species. Dominant plant species were in the following order; Phragmites communis > Typha latifolia > Iris pseudoacorus > Persicaria thunbergii. Five families and 15 species of fish were observed in the system including Chinese minnow (Moroco oxycephalus) which inhabits in clean water. Six more fish species were monitored in the system compared with ones living in Kyungan stream. Amphibia and reptiles accounted for 11 species of 4 orders and 7 families including Korean Salamander (Hynobius leechi) which also lives in clean water.
택지내 분산형 저류지 시스템의 첨두유출 저감효과와 수리특성
박현주,이희창,변찬우,Park. Hyun-Joo,Lee. Hee-Chang,Byeon. Chan-Woo 한국방재학회 2013 한국방재학회 학술발표대회논문집 Vol.2013 No.1
국내 최초의 분산형 생태환경저류지 시스템으로 방재기능뿐만 아니라 초기 비점오염원에 대한 생태적 수질정화 및 생태복원, 근린공원의 친수적 이용성, 토지이용도 제고 등의 다양한 기능을 융합하여 대상지 특성에 적합한 다목적용 저류지가 조성되었다. 복원 후 수리 수문 모니터링 결과는 서울지역 재현기간 10년의 강우량과 홍수량에서 첨두홍수량은 12% 감소하고 20분의 지체효과를 보였다. 생태환경수로의 하상 평균소류력의 범위는 <TEX>$86.29-376.18N/m^2$</TEX>, 유속의 범위는 2.76-10.07m/s 이었다. 하상보호공은 평균 소류력이 <TEX>$133.94N/m^2$</TEX> 이하인 곳에는 자연석을, <TEX>$133.94N/m^2$</TEX> 이상인 곳에는 생태목틀이 적용되었다. 현장조사결과 생태목틀과 자연석이 적용된 생태환경수로는 자연석의 이탈이나 자연석 주변 하상 세굴과 토사의 퇴적이 발생하지 않았음을 확인하였다. 생태환경 저류지 시스템의 홍수저감효과와 생태환경 수로의 안정성을 입증하였다. 국내 융합적인 생태환경 저류지나 생태하천의 표준화와 적용에 필요한 중요한 기준을 확립하는데 기여할 수 있을 것이다. 다만 생태환경저류지 시스템 조성이후 생태적 안정화 기간인 2년 이상의 연구개발자(전문가)의 유지관리 참여가 필요하다. 이를 통해 일반기술자도 생태환경저류지의 조성 및 유지관리가 용이하도록 지침을 마련해야 할 것이다.