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| 題 名 | 養豬廢水厭氧加溫處理對水質及沼氣產量之影響=Effects of Heating during the Anaerobic Treatment of Pig Wastewater on Wastewater Qualities and Biogas Yield |
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| 作 者 | 蘇天明; 翁義翔; 劉威志; 黃雅玲; 蕭庭訓; | 書刊名 | 中國畜牧學會會誌 |
| 卷 期 | 52:2 2023.06[民112.06] |
| 頁 次 | 頁163-176 |
| 分類號 | 445.48 |
| 關鍵詞 | 加溫; 厭氧處理; 養豬廢水; 沼氣產量; Heating; Anaerobic treatment; Pig wastewater; Biogas production; |
| 語 文 | 中文(Chinese) |
| DOI | 10.30194/JCSAS.202306_52(2).0005 |
| 中文摘要 | 本研究旨在探討養豬廢水厭氧處理階段加溫處理,對厭氧處理後水質和沼氣產量 的影響。將生長肥育期 LD 肉豬 128 頭飼養於密閉水簾糞尿溝式豬舍,分別餵飼高粗蛋白 (C 組)與低粗蛋白(H 組)含量飼糧各 64 頭,期間皆採任飼、飲用水充分供應。豬隻飼 養期間,每 3 ~ 4 日將沖洗糞尿溝的原廢水,以可程式化邏輯控制器(PLC)自動控制進出 水於有效容積 10 m3 之直立式厭氧槽,水力停留時間 20 日。C 組廢水厭氧槽液不加溫,H 組厭氧槽液則採循環加溫處理。厭氧處理系統穩定後,每週採集沖洗水、原廢水及厭氧後上 清液分析水質。每週記錄沼氣產量,並採集沼氣樣品分析甲烷(CH4)及二氧化碳(CO2) 濃度。結果顯示,C 組原廢水的總氮濃度顯著較 H 組為高。C 組與 H 組厭氧槽處理水排出 液溫度分別為 24.6 與 36.9℃(P < 0.05),H 組厭氧處理後水質總固形物、揮發性固體及總 氮皆顯著較 C 組低。H 組的沼氣及 CH4 產量分別較 C 組提高約 30% 及 33%,CO2 濃度則顯 著較 C 組為低。綜上,豬隻餵飼低粗蛋白含量飼糧具有降低廢水氮濃度,而厭氧槽廢水溫 度從 25℃提高到 37℃,可增加沼氣產量及甲烷濃度,並提升廢水處理效率。 |
| 英文摘要 | The purpose of this study was to investigate the effects of heating during the anaerobic treatment of pig wastewater on effluent qualities and biogas production. A total of 128 LD growerfinisher pigs were raised in a pig house with slatted floor, manure ditch and wet-pad cooling system, and 64 pigs were allocated in high crude protein(CP) diets group (group C), while other 64 pigs in low CP diets group (group H). All of the pigs were fed ad libitum in experiment period. During the experiment period, the manure ditch was flushed every 3 to 4 day by recycled wastewater. The wastewater produced by flushing (raw wastewater) was automatically pumped into a vertical anaerobic tank with an effective volume of 10 m3 by a programmable logic controller (PLC) system. The hydraulic retention time of anaerobic treatment was twenty days. The wastewater of group C was treated in the anaerobic tank without heating, while that of group H was treated in the anaerobic tank with circulated heating. After the anaerobic treatment system was stable, the recycled wastewater, raw wastewater and anaerobic effluent were collected weekly to analyze their quality. The biogas production was also recorded and the concentrations of methane (CH4) and carbon dioxide (CO2) of biogas were analyzed weekly. The results showed that the total nitrogen concentration of the raw wastewater of group C was significantly higher than that of the group H. The temperatures of anaerobic effluents of groups C and H were 24.6 and 36.9°C, respectively. The total solid, volatized solid and total nitrogen of anaerobic effluent of group H were significantly lower than those of group C. The amount of biogas and CH4 production of group H were approximately 30% and 33% higher than those of group C, while the CO2 concentration was significantly lower (P < 0.05) than that of group C. In summary, low CP dietary can reduce the nitrogen concentration of pig wastewater. Increasing the temperature of the anaerobic tank from 25°C to 37°C can increase the amount of biogas production and the methane concentration, in the meantime, the removal efficiency of wastewater was also increased. |
本系統中英文摘要資訊取自各篇刊載內容。