http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
劉成桓 관동대학교 1988 關大論文集 Vol.16 No.2
Previous investigations regarding the treatability of raw seafood-processing wastewaters with biological treatment methods has focused only limited activated sludge processes. Extensions of these studies have demonstrated improved organic removal effiencies, but treatment cost remained less favorable in comparison to those resulting from fixed-film biological processes. Most of RBC treatment among fixed-film biological processes appeared to be largely limited by the moderate to low organic strengths of the wastewaters investigated, but trickling filter system was seldom applied in seafood-processing wastewaters. Thus, the purpose of this research was to establish the applicability of trickling filter treatment for the seafood-processing wastewaters and detemine optimum design and operation criteria. Performance resulting from the use of conventional stone packing, was studied and the wastewater selected for experimentation originated from "J" seafood-processing plant. Treatment seafood-processing wastewaters by trickling filter was decidedly effective. In the 3000-12,300 mg/1 influent BOD range, BOD removal efficiency was depending on organic loading rather than hydraulic loading rate independently on temperature in the range of 14℃ to 20℃. Under similar organic loading, increases of specific surface area provided the improved treatability of BOD and SS, and SS removable efficiency rapidly decreased near low temperature(14℃), but Cl-concentration was not affected on BOD and SS influent concentration. In addition, specific treatability coefficient, K, was in the range of 0.71 to 0.79. Generally, when optimum organic loading rate was lower than 2 Kg BOD/m³/d and hydraulic loading rate was in the range of 0.4 to 0.8m³/m³/d, effluent BOD decreased under 200mg/1