시설하우스 폐양액 주입방법 및 여재 특성에 따른 인공습지에서 수질오염물질의 처리효율

서동철 ( Dong Cheol Seo ),박종환 ( Jong Hwan Park ),천영석 ( Yeong Seok Cheon ),박성규 ( Seong Kyu Park ),김아름 ( Ah Reum Kim ),이원규 ( Won Gyu Lee ),이상원 ( Sang Won Lee ),이성태 ( Seong Tae Lee ),조주식 ( Ju Sik Cho ),허종수 한국환경농학회 2010 한국환경농학회지 Vol.29 No.2

In order to improve T-N and T-P removal in HF (horizontal flow)-HF hybrid constructed wetlands by natural purification method for treating the hydroponic wastewater in greenhouses, the efficiency of water treatment as affected by the injection method of hydroponic wastewater, the addition of special filter media, the particle size of filter media, and the injection ratio of hydroponic wastewater in 1st HF and 2nd HF beds were investigated in small-scale HF-HF hydroponic wastewater treatment apparatus. Removal rate of T-P in the water in HF-HF hydroponic wastewater treatment apparatus with calcite as affected by addition method of special filter media was higher than that in HF-HF hydroponic wastewater treatment apparatus with other filter media. Removal rate of BOD, COD, SS, T-N and T-P in the water in mixed filter media with calcite were 86, 84, 87, 50 and 97%, respectively. Removals of pollutants except for T-P in the water were slightly different. Therefore, it should be considered that the removal rate of T-P was good for calcite in HF-HF hydroponic wastewater treatment apparatus. To improve T-N and T-P removal, the optimum particle size of filter media was 1.2 mm, and the optimum injection ratio (1st HF bed:2nd HF bed) of hydroponic wastewater was 60:40.

게르마늄 종류별 토양처리시 벼의 생육특성 및 게르마늄 흡수에 미치는 영향

서동철(Dong-Cheol Seo),천영석(Yeong-Seok Cheon),박성규(Seong-Kyu Park),박종환(Jong-Hwan Park),김아름(Ah-Reum Kim),이원규(Won-Gyu Lee),이성태(Seong-Tae Lee),이영한(Young-Han Lee),조주식(Ju-Sik Cho),허종수(Jong-Soo Heo) 한국토양비료학회 2010 한국토양비료학회지 Vol.43 No.2

게르마늄 토양처리시 게르마늄 종류가 벼의 생육특성 및 부위별 게르마늄 흡수에 미치는 영향을 조사하기 위해 무기게르마늄 (GeO₂)과 수도작용 액상게르마늄으로 시비를 달리하여 게르마늄 종류에 따른 벼의 생육특성, 게르마늄 종류에 따른 부위별 게르마늄 흡수 특성을 각각 조사한 결과 수도작용 액상게르마늄 처리구와 무처리구의 경우 벼에 게르마늄에 의한 독성이 거의 나타나지 않은 반면에 GeO₂ 처리구에서는 일부 벼에서 게르마늄의 독성이 나타났다. 게르마늄 종류에 따른 잎의 게르마늄 흡수량은 GeO₂ 처리구에서 평균 177.0 ㎍ m?²로 수도작용 액상게르마늄 처리구보다 약 6배 높았으나, 줄기와 뿌리의 게르마늄 흡수량은 게르마늄 종류에 따라 전반적으로 큰 차이는 없었다. 게르마늄 종류에 따른 쌀겨 중 게르마늄 함량은 GeO₂ 처리구 및 수도작용 액상게르마늄 처리구 모두 별 차이 없이 비슷한 경향이었고, 현미 중 게르마늄 함량은 GeO₂ 처리구에서 평균 40.9 ㎎ ㎏?¹으로 수도작용 액상게르마늄 처리구의 평균 31.1 ㎎ ㎏?¹보다 유의성 있게 높았다. 하지만 백미 중 게르마늄 함량은 GeO₂ 처리구에서 평균 7.9 ㎎ ㎏?¹으로 수도작용 액상게르마늄 처리구의 평균 14.3 ㎎ ㎏?¹보다 유의성 있게 낮았다. 게르마늄 종류에 따른 벼 부위별 게르마늄 흡수율은 전반적으로 잎 > 쌀겨 > 현미(백미) > 줄기 > 뿌리 순으로 잎에서 가장 높았다. 쌀의 미질은 전반적으로 게르마늄 종류에 따라 별 차이 없었으나 무처리구에 비해 약간 낮은 경향을 나타내었다. In order to obtain the basic information for agricultural utilization of germanium (Ge), the growth characteristics, Ge uptake, and grain quality of rice plant (Hopyungbyeo) were investigated under different germanium (GeO₂, and commercial Ge) treatments in paddy field. Phytotoxicity was detected in GeO₂ treatment but not in commercial Ge treatment. The grain yield was greater in the order of control treatment > commercial Ge treatment > GeO₂ treatment. The dry weight was greater in order of control treatment > GeO₂ treatment ≥ commercial Ge treatment. The Ge content of leaf in GeO₂ treatment was 6 times (177 ㎎ m?²) higher than that in commercial Ge treatment. The Ge content in rice bran was not different in GeO₂, and commercial Ge treatments. The Ge contents of brown rice in GeO₂, and commercial treatments were 40.9, and 31.1 ㎎ ㎏?¹, respectively. The Ge uptake rates in rice plant was higher in the order of leaf > rice bran > brown rice > stem > root. Under GeO₂, 15.56% of Ge absorbed into plant with 11.1% in leaf, 1.6% in stem, 0.03% in root, 2.2% in rice bran and 0.73% in brown rice. Under commercial Ge treatment, 5.19% of Ge absorbed into plant with 1.8% in leaf, 0.46% in stem, 0,01% in root, 2.2% in rice bran, and 0.71% in brown rice. Based on these results, the Ge contents in polished rice in commercial Ge treatment were higher than those in GeO₂ treatment. However, the Ge contents of rice grain (containing rice bran and polished rice) in GeO₂ treatment were higher than those in commercial Ge treatment.

토양중 게르마늄 처리농도에 따른 상추 생육 및 게르마늄 흡수

이성태 ( Seong Tae Lee ),이영한 ( Young Han Lee ),반경녀 ( Kyeong Nyeo Bahn ),서동철 ( Dong Cheol Seo ),허종수 ( Jong Soo Heo ) 한국환경농학회 2005 한국환경농학회지 Vol.24 No.4

벼・맥주보리 작부체계에서 돈분액비 연용이 벼 생육과 미질에 미치는 영향

이성태(Seong-Tae Lee),서동철(Dong-Cheol Seo),조주식(Ju-Sik Cho),Randy A. Dahlgren,이영한(Young-Han Lee) 한국토양비료학회 2010 한국토양비료학회지 Vol.43 No.5

남부지방의 대표적 이모작 작부체계인 벼?맥주보리 작부체계에서 3년 (6작기) 동안 화학비료와 돈분뇨의 시용량을 달리하여 연용하여 살포하였을 때 돈분뇨가 벼의 생육과 미질에 미치는 영향에 대하여 검토한 결과 화학비료를 100% 시용한 구에 비해 벼 (돈분뇨 100%)+맥주보리 (돈분뇨 100%) 처리구에서 13%의 수량 증수 효과가 있었다. 그러나 도복 관련하여 3+4 절간 길이가 증가하고 좌절중이 감소하여 도복지수가 증가하였으며, 쌀의 단백질 함량이 증가하고 Toyo 식미치와 완전미 비율은 감소하여 쌀의 품질은 감소하는 결과를 얻어 벼 (돈분뇨 50%+화학비료 50%)+맥주보리 (돈분뇨 50%+화학비료 50%)처리가 바람직 하였다. 도복에 영향을 미치는 3+4 절간의 길이는 벼 (돈분뇨100%)+맥주보리 (화학비료 100%) 처리구에서 32 cm로 가장 길었으며, 좌절중은 벼 (돈분뇨 100%)+맥주보리 (화학비료 100%)와 벼 (돈분뇨 100%)+맥주보리 (돈분뇨 100%) 처리구의 도복지수가 각각 393 및 411로서 도복의 우려가 높았다. 벼의 수량 및 수량구성요소 벼 (화학비료 100%)+맥주보리 (화학비료 100%) 처리구에서 간장, 수장, 수수, 수당 입수 및 1,000립중은 각각 69 cm, 19.0 cm, 16.1개, 89개 및 23.4 g 이었고, 벼 (돈분뇨 100%) +맥주보리 (돈분뇨 100%)처리구에서 81 cm, 19.7 cm, 19.3개, 93개 및 22.1 g으로 482 kg 10a<SUP>-1</SUP>의 수량을 얻어 13% 증수 되었다. 쌀의 단백질 함량은 무비구 6.9%를 제외하고 모두 7.6~8.9%로 높은 수준이었으며, 아밀로스 함량은 19.4~22%로 처리구별 유의성은 없었다. 식미치를 Toyo 식미계를 이용하여 조사한 결과 무비구가 67.1로 가장 좋았으나 관행 처리구인 벼 (화학비료 100%)+맥주보리 (화학비료100%) 처리구에서는 59.8, 벼 (돈분뇨 50%+화학비료 50%)+맥주보리 (돈분뇨 50%+화학비료 50%) 처리구 64.2, 벼 (돈분뇨 100%)+맥주보리 (화학비료 100%) 처리구 60.9, 벼 (돈분뇨 100%)+맥주보리 (돈분뇨 100%) 처리구에서는 60.3으로 식미치는 낮은 수준이었다. 쌀의 품위 특성은 완전미 비율은 91.6% 이상으로 대체적으로 높았으며, 완전미 비율이 가장 높은 처리구는 무비구로서 95.9% 이었고, 돈분뇨 시용구에서는 완전미 비율이 91.6~92.0%로 가장 낮았으며, 불완전미의 비율을 높인 주 원인은 분상질립의 비율이 높았기 때문이었다. 현미의 무기성분은 돈분뇨 시용구에서 질소와 인산 함량이 높았다. In order to investigate the effects of continual pre-plant application of liquid pig manure (LPM) on growth and quality of rice in double cropping system of rice and malting barley, the liquid pig manure was applied after harvesting rice and malting barley for 3 years. Field experiment was designed with non-fertilizer, chemical fertilizer (CF) 100% recommended by soil testing, rice (LPM 50%+CF 50%)+malting barley (CF 100%), rice (LPM 50%+CF 50%)+malting barley (LPM 50%+CF 50%), rice (LPM 100%)+malting barley (CF 100%) and rice (LPM 100%)+malting barley (LPM 100%). The yield of rice was increased by 13% with increasing culm length and No. of panicle per hill as 482 kg 10a<SUP>-1</SUP> in rice (LPM 100%)+malting barley (LPM 100%) plot compare with 427 kg 10a<SUP>-1</SUP> in rice (CF 100%)+malting barley (CF 100%) plot. Whereas, lodging index was high in rice (LPM 100%)+malting barley (LPM 100%) plot by increasing of internodes length from 3rd to 4th and decreasing of breaking strength. When the quality of milled rice was compare with rice (CF 100%)+malting barley (CF 100%) plot, it was decreased by increasing of protein contents and decreasing of rate of perfect grain in rice (LPM 100%)+malting barley (LPM 100%) plot. The content of amylose was not significant by 19.4~22.0%. Toyo-taste value was not different in LPM 100% and CF 100% plot. Rice could be grown with only liquid pig manure 100%, but considering yield and quality of rice and lodging risk, basal fertilization by LPM 50% and top-dressing by CF 50% application was recommended for rice cultivation.

벼ㆍ맥주보리 작부체계에서 돈분액비 연용이 맥주보리 생육과 토양 환경에 미치는 영향

이성태(Seong-Tae Lee),서동철(Dong-Cheol Seo),김은석(Eun-Seok Kim),송원두(Won-Doo Song),이원규(Won-Gyu Lee),허종수(Jong-Soo Heo),이영한(Young-Han Lee) 한국토양비료학회 2010 한국토양비료학회지 Vol.43 No.3

To investigate the effect of continual pre-plant application of liquid pig manure (LPM) on malting barley growth, quality and soil environment in double cropping system of rice and malting barley, the liquid pig manure was applied after harvesting rice and malting barley for 3 years. Field experiment was designed with non-fertilizer, chemical fertilizer (CF) recommended by soil testing, rice (LPM 50%+CF 50%)+malting barley (CF 100%), rice (LPM 50%+CF 50%)+malting barley (LPM 50%+CF 50%), rice (LPM 100%)+malting barley (CF 100%) and rice (LPM 100%)+malting barley (LPM 100%). By continuous application of LPM 100%, the contents of available P₂O5 and exchangeable K in the soil were increased. The available P₂O5 increased from 243 to 350 mg kg<SUP>-1</SUP> and exchangeable K was changed 0.31 to 0.44 cmolc kg<SUP>-1</SUP>. However, the contents of available P₂O5 and exchangeable K were not significant changes in rice (LPM 50%+CF 50%)+malting barley (LPM 50%+CF 50%) plot. Bulk density of soil was not affected by application of LPM. The microbial density was high in order of bacteria > actinomycetes > fungi. The population of aerobic bacteria in rice (LPM 100%)+malting barley (LPM 100%) plot was higher than other plots. The ratio of aerobic bacteria/fungi and biomass C content were the highest in rice (LPM 100%)+malting barley (LPM 100%) plot. The yield of malting barley was increased 22% by increasing culm length, panicle length, No. of panicle and 1,000 grains as 358 kg 10a<SUP>-1</SUP> in rice (LPM 100%)+malting barley (LPM 100%) plot compared with 294 kg 10a<SUP>-1</SUP> in rice (CF 100%)+malting barley (CF 100%) plot. The content of β-glucan was low by 4.5 and 4.4% in non-fertilizer and rice (CF 100%)+malting barley (CF 100%) plot, respectively. The content of crude protein was the lowest by 8.2% in non-fertilizer and rice (CF 100%)+malting barley (CF 100%) plot and the quality of malting barley was good as within 11%.

게르마늄 함유 기능성 쌀 생산을 위한 최적 품종선정

서동철 ( Dong Cheol Seo ),임종서 ( Jong Sir Lim ),박우영 ( Woo Young Park ),천영석 ( Yeong Seok Cheon ),박성규 ( Seong Kyu Park ),이성태 ( Seong Tae Lee ),조주식 ( Ju Sik Cho ),허종수 ( Jong Soo Heo ) 한국환경농학회 2008 한국환경농학회 학술대회집 Vol.2008 No.2

당근 연작장해 경감을 위한 녹비작물 재배가 당근 생육 및 수량에 미치는 영향

김성헌 ( Seong Heon Kim ),서동철 ( Dong Cheol Seo ),박종환 ( Jong Hwan Park ),이성태 ( Seong Tae Lee ),이상원 ( Sang Won Lee ),김홍출 ( Hong Chul Kim ),조주식 ( Ju Sik Cho ),허종수 ( Jong Soo Heo ) 한국환경농학회 2013 한국환경농학회지 Vol.32 No.4

BACKGROUND: Soil incorporation of green manure crop(GMC) is one of the methods for reducing continuous cropping injury and increasing yield of carrot. The purpose of this study was to evaluate the effects of green manure crops on growth and yield of carrot for reduction of continuous cropping injury of carrot through crop rotation. METHODS AND RESULTS: To reduce the injury by continuous cropping system(CCS) of carrot cultivation, GMCs such as crotalaria and sudangrass were applied, which GMC was sowed in latter-June and returned to soil in latter-October. Nutrient contributions of N, P2O5, K2O, CaO, and MgO in crotalaria were 8.3, 7.5, 4.4, 7.8, and 2.1 kg/10a, respectively. Nutrient contributions of N, P2O5, K2O, CaO, and MgO in sudangrass were 8.4, 8.6, 26.8, 0.3, and 2.7 kg/10a, respectively. After incorporation of GMCs into soil, bulk density in soil with GMCs was lower than that in soil without GMCs(control). In soil after incorporation of GMCs, pH was not different in all treatment conditions, and ranged from 6.37~6.64. EC in soil after incorporation of GMCs was lower than that in soil without GMCs. The OM, T-N, and avail. P2O5 contents in soil with GMCs were higher than those in soil without GMCs. The growth and yields were increased as 39.2%(6,226 kg/10a) in the rotational cropping system(RCS) as compared to continuous cropping system(control and without NPK) of 4,473 kg/10a. Crotalaria cultivation were the most effective crop for reducing the injury of continuous cropping of carrot. CONCLUSION(S): This study suggest that the RCS using GMCs showed lower disease outbreak density in soil for carrot cultivation as compared to CCS without GMCs. Especially, the GMCs good effect for reduction of continuous cropping injury of carrot.

인공습지 축산폐수처리장에서 주입방법에 따른 오염물질의 제거속도 평가

김성헌(Seong-Heon Kim),서동철(Dong-Cheol Seo),박종환(Jong-Hwan Park),이충헌(Choong-Heon Lee),이성태(Seong-Tea Lee),정태욱(Tae-Uk Jeong),김홍출(Hong-Chul Kim),하영래(Yeong Rae Ha),조주식(Ju-Sik Cho),허종수(Jong-Soo Heo) 한국토양비료학회 2012 한국토양비료학회지 Vol.45 No.2

자연정화공법을 이용한 축산폐수처리장에서 주입부하량에 따른 대응성을 평가하기 위해 주입방법에 따른 수처리효율 결과를 이용하여 오염물질의 처리경향을 파악하고, 이를 토대로 설계 및 시공시 부지면적 감소와 오염물질의 처리효율 극대화를 위한 기초자료를 제시하기 위하여 주입방법에 따른 오염물질의 제거속도를 조사하였다. 축산폐수처리장에서 시기별 주입방법에 따른 수처리 효율을 조사한 결과 최종 5차 방류수에서 COD, SS, T-N 및 T-P의 처리효율은 연속적 주입의 경우는 각각 99.5%, 99.8%, 99.0% 및 99.8%였으며, 간헐적 주입의 경우는 99.2%, 99.5%, 98.5% 및 99.3%로서 상대적으로 연속적 주입이 간헐적 주입보다 높은 처리효율을 보였다. 축산폐수처리장에서 주입방법에 따른 오염물질의 제거속도 K (day<SUP>-1</SUP>)는 축산폐수 주입방법을 연속적 및 간헐적으로 구분하여 각 방법에 따른 COD, SS, T-N 및 T-P의 제거속도를 각각 조사하였으며, 각 오염 물질의 제거속도는 ln(C/C0) = -Kt의 1차 반응속도식을 이용하였다. COD 제거상수(K)는 연속적 주입의 경우 1차, 2차, 3차, 4차 및 5차 처리조에서 각각 0.210, 0.086, 0.222, 0.053 및 0.137 d<SUP>-1</SUP>이었고, 간헐적 주입의 경우 0.377, 0.129, 0.174, 0.052 및 0.169 d<SUP>-1</SUP>였다. 그리고 T-N의 제거속도 상수(K)는 연속적 주입의 경우 1차, 2차, 3차, 4차 및 5차 처리조에서 각각0.235, 0.071, 0.171, 0.058 및 0.126d<SUP>-1</SUP>이었고, 간헐적 주입의 경우0.361, 0.121, 0.109, 0.047 및 0.155 d<SUP>-1</SUP>이었다. T-P의 제거속도 상수(K)는 연속적 주입의 경우 1차, 2차, 3차, 4차 및 5차 처리조에서 각각 0.572, 0.049, 0.090, 0.112 및 0.222 d<SUP>-1</SUP>이었고, 간헐적 주입의 경우 0.803, 0.084, 0.076, 0.118 및 0.301 d<SUP>-1</SUP>였다. 이상의 결과를 미루어 볼때 제거속도는 연속적 주입이 간헐적 주입에 비해 빠른 경향이었으며, 본 현장 축산폐수처리장은 축산폐수 유입 부하량 변동과 순간 부하량에 대한 대응성이 우수한 것으로 판단된다. In order to effectively treat livestock wastewater in constructed wetlands by natural purification method, removal velocities of pollutants under different injection methods in constructed wetlands were investigated. The removal velocities of chemical oxygen demand (COD), suspended solid (SS), T-N and T-P by continuous injection method were slightly rapid than those by intermittent injection method in full-scale livestock wastewater treatment plant. The removal velocity (K; day<SUP>-1</SUP>) of COD by continuous injection method was 0.38 d<SUP>-1</SUP> for <SUP>1st</SUP> bed, 0.13 d<SUP>-1</SUP> for <SUP>2nd</SUP> bed, 0.17 d<SUP>-1</SUP> for <SUP>3rd</SUP> bed, 0.05 d<SUP>-1</SUP> for <SUP>4th</SUP> bed and 0.17 d<SUP>-1</SUP> for <SUP>5th</SUP> bed. The removal velocities (K; day<SUP>-1</SUP>) of COD in <SUP>1st</SUP>, <SUP>2nd</SUP>, <SUP>3rd</SUP>, <SUP>4th</SUP> and <SUP>5th</SUP> beds by intermittent injection method were 0.210 d<SUP>-1</SUP>, 0.086 d<SUP>-1</SUP>, 0.222 d<SUP>-1</SUP>, 0.053 d<SUP>-1</SUP> and 0.137 d<SUP>-1</SUP>, respectively. The removal velocity (K; day<SUP>-1</SUP>) of SS by continuous injection method was 0.750 d<SUP>-1</SUP> for <SUP>1st</SUP> bed, 0.108 d<SUP>-1</SUP> for <SUP>2nd</SUP> bed, 0.120 d<SUP>-1</SUP> for <SUP>3rd</SUP> bed, 0.086 d<SUP>-1</SUP> for <SUP>4th</SUP> bed and 0.292 d<SUP>-1</SUP> for <SUP>5th</SUP> bed. The removal velocities (K; day<SUP>-1</SUP>) of SS in 1st, 2nd, 3rd, 4th and 5th beds by intermittent injection method were 0.485 d<SUP>-1</SUP>, 0.056 d<SUP>-1</SUP>, 0.174 d<SUP>-1</SUP>, 0.081 d<SUP>-1</SUP> and 0.227 d<SUP>-1</SUP>, respectively. The removal velocity (K; day<SUP>-1</SUP>) of T-N by continuous injection method was 0.361 d<SUP>-1</SUP> for <SUP>1st</SUP> bed, 0.121 d<SUP>-1</SUP> for <SUP>2nd</SUP> bed, 109 d<SUP>-1</SUP> for <SUP>3rd</SUP> bed, 0.047 d<SUP>-1</SUP> for <SUP>4th</SUP> bed and 0.155 d<SUP>-1</SUP> for <SUP>5th</SUP> bed. The removal velocities (K; day<SUP>-1</SUP>) of T-N in <SUP>1st</SUP>, <SUP>2nd</SUP>, <SUP>3rd</SUP>, <SUP>4th</SUP> and <SUP>5th</SUP> beds by intermittent injection method were 0.235 d<SUP>-1</SUP>, 0.071 d<SUP>-1</SUP>, 0.171 d<SUP>-1</SUP>, 0.058 d<SUP>-1</SUP> and 0.126 d<SUP>-1</SUP>, respectively. The removal velocity (K; day<SUP>-1</SUP>) of T-P by continuous injection method was 0.803 d<SUP>-1</SUP> for <SUP>1st</SUP> bed, 0.084 d<SUP>-1</SUP> for <SUP>2nd</SUP> bed, 0.076 d<SUP>-1</SUP> for <SUP>3rd</SUP> bed, 0.118 d<SUP>-1</SUP> for <SUP>4th</SUP> bed and 0.301 d<SUP>-1</SUP> for <SUP>5th</SUP> bed. The removal velocities (K; day<SUP>-1</SUP>) of T-P in <SUP>1st</SUP>, <SUP>2nd</SUP>, <SUP>3rd</SUP>, <SUP>4th</SUP> and <SUP>5th</SUP> beds by intermittent injection method were 0.572 d<SUP>-1</SUP>, 0.049 d<SUP>-1</SUP>, 0.090 d<SUP>-1</SUP>, 0.112 d<SUP>-1</SUP> and 0.222 d<SUP>-1</SUP>, respectively.

게르마늄 함유 기능성 쌀 생산을 위한 최적 처리방법 선정

박성규(Seong-Kyu Park),임종서(Jong-Sir Lim),천영석(Young-Seok Cheon),박우영(Woo-Young Park),서동철(Dong-Cheol Seo),이성태(Seong-Tae Lee),조주식(Ju-Sik Cho),허종수(Jong-Soo Heo) 한국토양비료학회 2008 한국토양비료학회 학술발표회 초록집 Vol.2008 No.9

자연정화공법에 의한 인공습지 축산폐수처리 시스템의 최적 조합방법 및 부하량

박종환(Jong-Hwan Park),서동철(Dong-Cheol Seo),김아름(Ah-Reum Kim),김성헌(Sung-Hun Kim),이성태(Seong-Tae Lee),정태욱(Tae-Uk Jeong),최정호(Jeong-Ho Choi),김현욱(Hyunook Kim),조주식(Ju-Sik Cho),허종수(Jong-Soo Heo) 한국토양비료학회 2011 한국토양비료학회지 Vol.44 No.2

축산농가에서 소규모로 발생하는 축산폐수를 인공습지에서 효율적으로 처리하기 위한 최적 조합방법 및 부하량을 조사하기 위해 호기성조, 혐기성조 및 무산소조를 구분하여 9개 시스템의 소형 축산폐수처리장치를 설계 및 제작한 다음 조합방법별 및 부하량별에 따른 수처리 효율을 조사하였다. 축산폐수처리장치의 조합방법에 따른 처리효율을 조사한 결과 COD 처리효율은 호기-호기 조합형과 호기-혐기 조합형이 다른 조합방법에 비해 높았으며, T-N 처리효율은 호기성조-혐기성조 조합형이 다른 조합방법에 비해 높은 처리효율을 보였다. 또한 조합방법에 따른 SS 및 T-P 처리효율은 큰 차이가 없었다. 소형 축산폐수 처리장치에서 부하량에 따른 처리효율을 조사한 결과 SS를 제외한 COD, T-N 및 T-P 처리효율은 축산폐수 부하량 100 Lm<SUP>-2</SUP> day<SUP>-1</SUP>까지 안정적이었으나, 100 L m<SUP>-2</SUP> day<SUP>-1</SUP> 이상의 부하량에서는 처리효율이 약간 감소하였다. 소형 축산페수처리장치에서 SS처리의 경우 부하량 200 L m<SUP>-2</SUP> day<SUP>-1</SUP>까지 안정적인 처리효율을 보였으며, 그 이상의 부하량도 처리가 가능할 것으로 판단된다. 이상의 결과 미루어 볼 때, 축산폐수를 처리하기 위한 소형 축산폐수처리장치의 최적 조합방법은 호기-혐기 조합이었으며, 부하량은 100 L m<SUP>-2</SUP>day<SUP>-1</SUP>이었다. To obtain optimum configuration method and livestock wastewater loading in small-scale livestock wastewater apparatus by natural purification method for treating livestock wastewater, the small-scale livestock wastewater apparatuses were constructed with 9 kinds of combined systems such as aerobic bed (ae)-anaerobic bed (an), ae-ae, ae-anoxic bed (ox), an-an, an-ae, an-ox, ox-ae, ox-an and ox-ox livestock wastewater treatment apparatuses. Under different configuration methods, the removal rate of COD in Ae-Ae and Ae-An livestock wastewater treatment apparatus was higher than that in other configuration methods. The removal rate of T-N in Ae-An livestock wastewater treatment apparatus was higher than that in other configuration methods. Removal rates of SS and T-P were not different regardless of configureation methods in small-scale livestock wastewater treatment apparatus. Under different livestock wastewater loading, the removal rates of pollutants were higher in the order of 50 L m<SUP>-2</SUP> day<SUP>-1</SUP> ≒ 100 L m<SUP>-2</SUP> day<SUP>-1</SUP> > 200 L m<SUP>-2</SUP> day<SUP>-1</SUP>. Therefore, optimum configuration method was Ae-An livestock wastewater treatment apparatus, and optimum livestock wastewater loding was 100 L m<SUP>-2</SUP> day<SUP>-1</SUP> in small-scale livestock wastewater treatment apparatus.