ZHANG Yu-jiu,XI Jia-rui,CHEN Ling,et al.Energy Consumption Statistics and Benchmarking Analysis of Urban Wastewater Treatment Plants (WWTPs) in China[J].China Water & Wastewater,2021,37(8):8-17.
中國城鎮(zhèn)污水處理廠能耗統(tǒng)計與基準分析
- Title:
- Energy Consumption Statistics and Benchmarking Analysis of Urban Wastewater Treatment Plants (WWTPs) in China
- 摘要:
- 基于《城鎮(zhèn)排水統(tǒng)計年鑒(2016)》數(shù)據(jù)，針對全國范圍內(nèi)1 291座城鎮(zhèn)污水處理廠的單位能耗，使用歸一化方法進行統(tǒng)計分析，揭示了污水廠規(guī)模、處理水量負荷率、水處理工藝、出水標準和進水COD等因素與單位污水處理能耗的關(guān)系，探究了雙因素協(xié)同影響下的能耗情況。研究結(jié)果表明，我國污水處理廠的單位污水能耗均值為(0.317±0.229) kW·h/m3，選取的五種因素與能耗之間存在顯著關(guān)系，并存在一定協(xié)同效應(yīng)。結(jié)合污水廠自身規(guī)模、進水水質(zhì)和水量負荷等條件，給出現(xiàn)階段我國城鎮(zhèn)污水處理廠能耗基準表。建議制定階段性發(fā)展規(guī)劃，短期內(nèi)所有污水處理廠均應(yīng)以單位能耗50%作為能耗基準值，開展污水廠節(jié)能降耗工作。隨著運營逐漸穩(wěn)定和操作水平上升，未來可采用前25%或10%作為能耗基準值。
- Abstract:
- Based on energy consumption data of 1 291 wastewater treatment plants (WWTPs) from the China Urban Drainage Statistical Yearbook (2016), energy consumption statistical analysis was conducted with the normalized method, revealing the interaction between energy consumption and various factors including scale, loading rate, treatment process, effluent standard and influent COD of the WWTPs. The interactive effects of two factors were investigated. The total average unit energy consumption was (0.317±0.229) kW·h/m3 in China. There was a significant relationship between the five selected factors and energy consumption, and there was a certain synergistic effect. A matrix table of China WWTP energy benchmarking was constructed based on scale, influent quality and loading rate. Finally, this research proposed to formulate a phased development plan for WWTP energy management strategies. In the short term, the median value (top 50%) of statics should be set as the benchmarking, and the value of top 25% or 10% should be considered as benchmarking in the long-term plan with the gradual stability of operation and the rise of operation level.
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