頁籤選單縮合
題名 | 鴨糞廢水處理之研究=The Study on Duck Wastewater Treatment |
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作者姓名(中文) | 郭猛德; 郭春芳; 黃祥吉; | 書刊名 | 中國畜牧學會會誌 |
卷期 | 28:1 1999.03[民88.03] |
頁次 | 頁69-80 |
分類號 | 445.2594 |
關鍵詞 | 鴨糞廢水; 模型場; 厭氣處理; 好氣處理; Duck wastewater; Pilot plant; Anaerobic treatment; Aerobic treatment; |
語文 | 中文(Chinese) |
中文摘要 | 本研究之目的在探討舍內籠飼鴨糞廢水之性質與處理模式之建立。採用 籠飼定期清洗之鴨糞廢水,試驗分別於小型試驗槽與模型場內進行。試驗測定廢 水量、鴨糞廢水濃度與污染量、固液分離之去除效率與各種不同水力停留時間 (HRT)及負荷量對鴨糞廢水之去除效果。分析項目包括COD、BOD、SS、TS、 VS、TKN及沼氣產量與成分等。 試驗結果顯示,清洗舍內籠飼鴨糞之每日每隻用水量以直接沖洗約4.08L, 先行刮糞後再清洗約1.94L,新鮮鴨糞含COD 104,012±22,319 mg/L、BOD 35,391 ±11,192 mg/L、SS 95,814±10,982 mg/L;每週清洗二次則為COD 22,501±11,904 mg/L、BOD 6,032±3,017 mg/L、SS 13,758±7,273 mg/L、TS 15,827±6,568 mg/L、VS 5,249±2,383 mg/L,屬高濃度有機廢水,而每隻每日之BOD產生量約8.8g、COD26 g。利用水車式固液分離機可完全去除各種鴨毛,對COD、BOD、SS之去除率分 別為40.74%、19.96%、25.79%,且經固液分離機後之鴨糞固體沉降速率非常快, 於30分鐘之靜止沉降對COD、BOD、SS之去除率分別為69.77%、64.39%、94.34%。 於模型場之試驗結果顯示,欲使處理後之排放水符合87年放流水標準,建議仍採 氣發酵槽,其負荷量控制在COD 1.5 g/L.d與BOD 1 g/L.d ,HRT 5天,去除率需維 持在70%以上;好氣處理槽負荷量是COD 1 g/L.d、BOD 0.35 g/L.d、HRT 1天、去 除率65%為最適宜之組合,可使放流水之水質保持穩定。 |
英文摘要 | The objectives of this study were to determine chemical charateristics of cage-raised-duck wastewater and to develop its treatment scheme. The wastewater and its pollution load generated from washing cage-raised duck pens was estimated on a routine basis. Also, solid-liquid separating and gravity settling tests and batch-type and pilot-scale reactors were performed to determine their efficiencies in treating duck wastewater. The analytical items included COD, BOD, SS, TS, VS, TKN, and production rate and percentage of CH �� in biogas. The experimental results indicated that the washing water was 4.08 and 1.94 liter per duck per day for duck excreta not presecrapped and prescrapped from the floor, respectively. The concentratins of COD, BOD, and SS determined from fresh duck excreta were 104,012 ± 22,139, 35,391 ± 11,192, and 95,814 ± 10,982 mg/L respectively. When the wastewater generated from washing cage-raised ducks pens was analyzed, the concentrations of COD, BOD, SS, TS, and VS were 22,501 ± 11,904, 6,032 ± 3,017, 13,758 ± 7,273, 15,827 ± 6,568, and 5,249 ± 2,383 mg/L, respectively. The pollution loads of BOD and COD estimated were 8.8 and 26 gram per duck per day. The upward converying separator not only removed duck feathers nearly completely, but it also removed 40.74% of COD, 19.96% of BOD, and 25.79% of SS. The settling rate of duck excreta after solid-liquid separation was high, resulting in removing 69.77% of COD, 64.39% of BOD, and 94.34% of SS. To meet the 1998 Effluent Standard of duck wastewater, the following three-step treatment scheme and associated operational conditions are suggested, according to the experimental results. The wastewater is first pretreated by a olid-liquid separator and a primary clarifier, followed by an anaerobic sludge reactor operated under volumetric loadings and hydraulic retention time (HRT) of 1.5 g COD/L.d(1 g BOD/L.d) and 5 d, respectively (The COD/BOD removal efficiency should be maintained at greater than 70%) , Unneduately following that, an aerobic sludge reactor must be operated under volumetric loadings and HRT of 1 g COD/L.d (0.35 g BOD/L.d) and 1 d, respectively (The COD /BOD removal efficiency should be maintained at greater than 65%). |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。