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축산농가 오수가 충주호에 유입되는 지천의 수질에 미치는 영향
오인환,이종현,황현섭,장영수,Oh, I. H.,Lee, J. H.,Hwang, H. S.,Jang, Y. S. 한국축산환경학회 2005 축산시설환경학회지 Vol.11 No.2
축산농가가 인근의 하천수질에 미치는 영향을 규명하기 위하여 충주호 주변 3곳을 선정하여 계절별로 지천의 수질을 조사하였다. 여름철에 T-N이 상류와 하류에서 각각 최소 0.005에서 최대 5.005 ppm이 조사되었고, 인산성 인이 S2 지점의 하류에서 0.5 ppm 검출되었다. COD는 8에서 20 ppm의 범위를 나타내었다. 가을철에 총 질소는 3측정지점을 통털어 상류지점에서 최저 0.005 ppm, 하류지점에서 최고 5.005 ppm을 나타내었으며, 역시 S2 지점의 하류에서 인산성 인이 0.5 ppm을 나타내었다. COD는 3 ppm에서 6 ppm의 범위를 나타내어 여름철보다 양호하였다. 겨울철에는 총 질소가 상류지점에서 최저치 0.053 ppm을 하류지점에서 최대치 0.51 ppm을 나타내었으며, 인산성 인은 S2 지점의 하류에서만 0.5 ppm을 나타내었고, COD는 가을철과 비슷하게 3 ppm에서 6 ppm을 나타내었다. 충주호 지천의 수질분석에서 여름철보다는 가을, 겨울철로 접어들면서 수질이 양호해지는 것으로 나타났으며, 전반적으로 축산농가에서 유출되는 오수가 지천에 영향을 미치지 않는 것으로 판단된다. To investigate the influence of livestock farm's wastewater on the near stream, the water quality of 3 different streams are analysed after seasons. In summer, the minimum T-N in the upper stream was 0.005 ppm and the maximum T-N in the down stream was 5.005 ppm. The phosphate was detected only in down stream of S2 point and was 0.5 ppm. COD was varied from 8 ppm in upper stream to 20 ppm in down stream. In fall, the T-N and the phosphate had shown similar results as that of in summer, however COD was varied from 3 ppm in upper stream to 6 ppm in down stream. In winter, the minimum T-N in the upper stream was 0.053 ppm and the maximum T-N in the down stream was 0.51 ppm. The phosphate was detected only in down stream of S2 point and was 0.5 ppm. COD was varied from 3 ppm in upper stream to 6 ppm in down stream. To be becoming fall and winter, the water quality of streams showed better than that of summer, and the wastewater from the livestock farms had little influence on the near streams.
양돈분뇨의 암모니아 저감을 위한 갈탄, 참숯 첨가제의 효능 분석
황현섭,오인환,장영수,Hwang, H.S.,Oh, I.H.,Jang, Y.S. 한국축산환경학회 2008 축산시설환경학회지 Vol.14 No.2
The odours from spreading the slurry, manure storage tanks, and the stall are a source of annoyance for the neighbors and sometimes even become a case for civil appeal. Reducing the odourant and ammonia emission is an urgent need to be addressed. It is known that brown coal and oak charcoal have an ability to absorb odour. We designed an experiment set in lab scale and used the brown coal and oak charcoal as additives in the test to reduce odour. The test are divided into two categories; namely aeration and no-aeration. The additives were added to the each sample at a concentration of 5% and 10% of total base solids, besides the control samples. We carried out the Phenate Method for ammonia analyzing. In the non-aerated case, the results showed a reducing efficiency of 23.7% and 26.4% with an addition rate of 5% and 10% of additives, respectively. In the aerated test, the reducing efficiency of ammonia was 17.8% and 21.0% with an addition rate of 5% and 10% of additives, respectively. In case of oak charcoal, non-aeration showed removal efficiencies of ammonia at 15.9% and 16.1% with addition rates of 5% and 10%, respectively, With aeration, they were 11.4% and 26.4% with addition rates of 5% and 10% oak charcoal, respectively. The tests show that brown coal and oak charcoal have a reducing effect on ammonia emissions.