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RISS 인기검색어
- 검색키워드
- 저자 : 김백호 ( Baik Ho Kim ) (검색결과 92 건)
- 무료
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부착규조 군집과 유기오탁지수를 이용한 오산천의 수질평가
김백호(Baik-Ho Kim),최환석(Hwan-Seok Choi),김미연(Mi-Yeon Kim),유형빈(Hyung-Bin Yoo) 대한환경위생공학회 2004 대한환경위생공학회지 Vol.19 No.2
To investigate the epilithic diatom community and water quality of the Osan stream, water samples were collected from the eight stations from April to September 2003. Sampling was two times before and after heavy rain. Total 52 diatom were identified and divided into 12 saproxenosus taxa, 6 saprophilous taxa and 34 indifferent taxa, respectively. The DAIpo values higher after heavy rain than before that. According to tolerance degree to the organic water pollution, all sampling stations ranged from α-oligosaprobic to α-mesosaprobic. Thus, the result indicates that the water quality of Osan stream is gradually improved by heavy rain.
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살조세균과 초식성 섭식자의 혼합배양에 의한 녹조제어효과
김백호(Baik-Ho Kim),가순규(Soon-Kyu Ka),한명수(Myung-Soo Han) 대한환경위생공학회 2004 대한환경위생공학회지 Vol.19 No.2
An algicidal effect of endemic algicidal bacterium (Pseudomonas putida) and rotifer zooplankton (Brachionus calyciflorus) on diatom Stephanodiscus hantzschii were examined in the filtered water, and were compared with those of bacterium plus ciliate. Bacteria removed as 80% of the diatom within 3.5 days, while ciliate and zooplankton suppressed 57% and 40% of diatom during the same period, respectively. Mixed treatment of bacteria plus ciliate removed as 54% of diatoms, while that of bacteria plus zooplankton decreased as 85%. Although single bacteria and mixed treatment of bacteria plus zooplankton quickly decreased the diatom in the initial of experiment, bacteria plus ciliate perfectly removed the diatom in culture flask within 5.5 days of the study. On the other hand, other single and mixed-treatments did not clear the diatom during the same period, and over 10% of them still remain in culture flask. Predator biomass in the presence of algicidal bacteria showed the growth patterns; zooplankton gradually decreased, and ciliate sustained over 0.5 cells/ml. These results indicated that the addition of ciliate to the algicidal bacterium in controlling the diatom Stephanodiscus hantzschii is more effective than that of zooplankton. Therefore, this synergistic interaction relationship between the bacterium and ciliate play an important role in the bio-manipulation using bio-agents to control the diatomal bloom in freshwater lakes and streams.
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보문 : 식물-광물 혼합제가 부영양 수체의 수질, 플랑크톤 및 microcystin-LR에 미치는 영향
김백호 ( Baik Ho Kim ),이주환 ( Ju Hwan Lee ),박채홍 ( Chae Hong Park ),권대률 ( Dae Yul Kwon ),박혜진 ( Hye Jin Park ),문병천 ( Byeong Cheon Mun ),문병진 ( Byeong Jin Mun ),최인철 ( In Chel Choi ),김난영 ( Nan Young Kim ),민한나 한국하천호수학회(구 한국육수학회) 2011 생태와 환경 Vol.44 No.4
We examined two reservoirs (lnkyung res. and Joongang res.) and two streams (Kyungan str. and Jecheon str.), all of which were eutrophic, during the 2010 warm season, to evaluate the water quality improvement activity (WQIA) of plant-mineral composite (PMC), which was previously developed to control suspended solids, including cyanobacterial bloom (Kim et al., 2010). We simultaneously measured both solid (S-MCLR) and dissolved microcystin-LR (D-MCLR), before and after PMC treatment, in the Joongang reservoir. Taking water body size and volume into account, we conducted the whole-scale experiment in the Inkyung reservoir, and mesocosm-scale experiments in the other three systems. The WQIAs of PMC were found to be comparatively high in SS (70~81%), TP (75~91%), BOD (65~91%), Chl-a (88~98%), phytoplankton(84~92%) and zooplankton(68~88%), except for the Kyungan stream, which was below 45% in all parameters. After PMC treatment, the concentrations of both SMCLR (47%) and D-MCLR (96%) decreased within two days, suggesting a mitigation possibility of hazardous chemicals such as agrochemicals and endocrine disrupters in the aquatic ecosystem. Our results collectively indicate that PMC is a useful agent to control suspended solids, including nuisance cyanobacterial bloom and their exudates, in an undisturbed water system with a long residence time.
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온배수 유입 소형하천의 수질 및 토양오염과 회복에 관한 연구 1. 온배수가 인근 소하천과 농업 환경에 미치는 영향
김백호(Baik Ho Kim),최민규(Min Kyu Choi),정연태(Yeun Tai Chung),이덕배(Deog Bae Lee),이경보(Kyeong Bo Lee),김미연(Mi Youn Kim),박승택(Seung Taeck Park) 한국환경생물학회 1999 환경생물 : 환경생물학회지 Vol.17 No.3
This study was carried out to investigate the influence of spa sewage on water quality and chemical contents in the paddy soil along stream from 1997 to 1998. Concentration of PO_4, SO_4, Cl, NH_4, Ca, Na and COD in the spa sewage were lower than standard for agricultural usage, and were lowered as the sewage flew to the into stream. The concentration of SO_4 in spa sewage was over the criteria for agricultural usage in the inlet, but was lower than criteria for agricultural usage by inlet of non polluted stream water. Concentration of pollutants in the sediment of water channel were the highest in the inlet site. There were no pollutants accumulation in the paddy soil where spa sewage was irrigated. It may be resulted from nutrients uptake of rice plant and self purification of paddy soil. On the while, considering electric conductivity and nitrate in spa sewage, this results suggest that long-term irrigation of the spa sewage may be required general management with some decreasing fertilization. [Spa sewage, Water quality, Agricultural environment. Sediment].
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담수산 이매패 펄조개를 이용한 흐름형 유기물 제어(CROM) 운영-퇴적물의 영향
김백호 ( Baik Ho Kim ),백순기 ( Soon Ki Baik ),황수옥 ( Su Ok Hwang ),황순진 ( Soon Jin Hwang ) 한국하천호수학회(구 한국육수학회) 2009 생태와 환경 Vol.42 No.2
국내산 담수 이매패 펄조개를 이용하여 부영양 저수지의 표층수를 실험실로 유입?처리하고 처리수는 다시 저수지로 환원하는 이른바 `흐름형 유기물 제어’ (CROM: continuous removal of organic matters) 기술을 개발하고 하천에서 채취한 모래퇴적물의 첨가가 유기물 제어와 수질에 어떠한 영향을 주는지 조사하였다. CROM은 크게 저류조, 조정조, 처리조, 분석조 등으로 이루어졌으며, 실험은 처리조에 현장수, 현장수+모래, 현장수+패류, 현장수+모래+패류 등을 각각 구성하여 유입속도는 18~25 Lh-1, 패류밀도는 486.1 indiv. m-2, 수온은 15~22℃ 범위에서 13일간 실시하였다. 유기물 및 수질 변화를 확인하기 위하여 매일 동일한 시간에 수온, pH, DO, 전도도, 탁도, 염분도, 엽록소 a, 부유물질, TN, TP, NO2, NO3, NH3, PO4 등을 측정하거나 채수하여 곧바로 분석하였다. 연구결과, 미처리수의 반송이 패류의 유기물 제어에 큰 영향을 미치지 않았으며 퇴적물의 첨가에 상관없이 실험기간 동안 80% 이상 유기물(부유물질 및 Chl-a)을 감소시켰으나 높은 농도의 암모니아와 인산 등을 배출하였다. 결국 한국산 이매패 펄조개를 이용한 CROM 운영효과는 매우 뚜렷하였으나 장기간 운영시 유기물 제어능 및 패류 생존율에 미치는 다른 요인들-수온, 미생물, 세정주기 등의 변화가 예상되며, 처리수에 대한 처리 및 활용에 대한 다각적인 연구가 뒤따라야 할 것으로 사료되었다. A `continuous removal of organic matters (CROM) system` using a native freshwater bivalve in Korea Anodonta woordiana, was developed to determine its potential of controlling various sestons in eutrophic lake system, and to evaluate its effect on water quality improvement under consideration of sediment addition as habitat. We designed CROM experiments with four treatments: no mussels and no sediment (W, negative control), no mussels and sediment (WS, positive control), mussels and no sediment (WM), and mussels and sediment (WMS). The experiments were performed at the condition of 18~25 L h-1 of inflow, mussel density of 486.1 indiv. m-2, and temperatures between 15 and 22℃ for 13 consecutive days. Physicochemical and biological parameters were measured at daily (10:00 am) intervals after the mussel addition. Results indicated that mussel stockings without addition of sediment effectively removed sestons (suspended solids and chlorophyll-a) at nearly same level over 80 percentage of the control during the study, while there were no differences in removal activities of sestons between with and without sediment (P>0.5). Therefore, it clearly suggests that CROM system using A. woordiana has a strong potential to control the seston in surface water of eutrophic lake.
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