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題 名 | Development of Pre-Coagulation and Biofilm Process for Advanced Treatment of Sewage=以預混凝結合生物膜程序來達成高級處理之目標 |
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作 者 | Hidaka,Taira; Somiya,Isao; Tsuno,Hiroshi; | 書刊名 | 中國環境工程學刊 |
卷 期 | 8:4 1998.12[民87.12] |
頁 次 | 頁267-274 |
分類號 | 445.463 |
關鍵詞 | 高級處理; 脫氮; 除磷; 預混凝; 生物膜; 好氧濾床; Advanced treatment; Nitrogen removal; Phosphorus removal; Pre-coagulation; Biofilm; Aerated filter; |
語 文 | 英文(English) |
中文摘要 | 本實驗是探討以預混凝沈澱結合反應最後再通過一好氧濾床來處理實際都市污水 ,目的是希望能夠達到高級處理的效果。 於實驗中,放流水之 SS、總 BOD、總氮、總磷分 別維持在 5.5mg/L、4.4mg/L、2.6mg/L 及 1.0mg/L 之下。過程中生物處理之水力停留時間 為 8 小時, 而附著在介質上的生質量一值都維持相當高的濃度。 好氧濾床當負荷約達到 1.0-1.5 kgSS/m3-bed 時, 即進行反沖洗 (約每兩天反沖洗一次 ); 如此可確保出流水之 SS 保持在 5mg/L 之下。從實驗的結果看來,這樣的處理程序是可以應付都市污水之三級處 理要求,而且生物處理之水力停留時間,只須和傳統的二級處理相同。 |
英文摘要 | The treatment performance and operational parameters of the process, which was composed of pre-coagulation-sedimentation tanks, biofilm reactors with polyurethane foam, and an aerated filter, werer discussed with the pilot plant treating actual municipal sewage. Concentrations of SS, T-BOD, T-N, and T-P in effluent were kept less than 5.0 mg/L, 4.4 mg/L, 2.6 mgN/L, and 1.0 mgP/L, respectively, under total hydraulic retention time (HRT) of 8 h in the biological process. Biomass could be kept on the attached media in high concentration. In the aerated filter, back-washing was conducted after abuot 1.0-1.5 kgSS/m �� -bed was loaded (corresponding to once every 2 days) to keep the effluent SS concentration less than 5 mg/L. From these results, the process was proved to be applicable to advanced treatment of municipal sewage with the same HRT as conventional secondary treatment. |
本系統中英文摘要資訊取自各篇刊載內容。