利用雙室微生物燃料電池處理模擬廢水的產電特性研究

更新時間：2014-07-16 10:11 來源：環境科學報作者: 閱讀：2204

中文摘要

本實驗通過研究電池的啟動過程、陽極有機物降解率和陰極Cu²⁺的去除率,評價了微生物燃料電池(microbial fuel cell, MFC)的產電和處理廢水性能.以模擬糖蜜廢水作為陽極基質,模擬電鍍廢水作陰極電子受體,建立簡單的雙室微生物燃料電池.結果表明在外電阻為800 Ω的情況下,電池得到最大電壓417.00 mV,從極化曲線上獲得最大輸出功率密度44.17 mW·m^-2,內阻為293 Ω.電池在第五周期時,COD去除率也達到最高47.31%.在第四周期內,Cu²⁺最大的去除率為59.76%.綜上所述,MFC在處理有機廢水和電鍍廢水方面具有可行性.

英文摘要

The start-up procedures, the degradation efficiency of organics at the anode and the removal efficiency of Cu²⁺ at the cathode of the cell were studied, based on which the performance of MFC (microbial fuel cell) in electricity generation and wastewater treatment was evaluated. A simple two-chamber microbial fuel cell was established with simulated molasses wastewater as substrate at the anode and simulated electroplating wastewater as an electron acceptor at the cathode. The results from a batch of experiments showed that the highest voltage output of 417.00 mV was obtained at an external resistance of 800 Ω,and that the maximum power density of 44.17 mW·m^-2was obtained with an internal resistance of 293 Ω based on the polarization curve. In addition, COD removal rate reached its highest value (47.31%) in the fifth cycle, and the maximum removal rate (59.76%) for Cu²⁺ was recorded in the fourth cycle. In summary, the application of MFC in the treatment of organic wastewater and electroplating wastewater is feasible.

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