School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China.
Water Res. 2010 Apr;44(7):2163-70. doi: 10.1016/j.watres.2009.12.033. Epub 2010 Jan 4.
The microbial fuel cell (MFC) was applied to produce electricity using sewage sludge as a fuel. The extracellular biological organic matter (EBOM) of sludge, before and after MFC operation, was extracted using ammonium hydroxide whose hydrophobicity was characterized with XAD resin fractionation technique. Following MFC operation, the hydrophilic fraction (HPI) of EBOM was enriched (48.0%-64.5%), the hydrophobic acid (HPO-A) fraction was reduced (32.0%-14.5%), and the dissolved organic carbon (DOC) was removed by 36.8% and the sludge aromaticity decreased by 65.7%. The fluorescence tests indicated that the MFC removed the aromatic proteins-like and soluble microbial byproduct-like materials in sludge. Fourier-transform infrared (FT-IR) results showed that the aliphatic (C-H related) components, hydrocarbon and carbohydrate were easily hydrolyzed and biodegraded in the studied MFC.
微生物燃料电池 (MFC) 被应用于利用污水污泥作为燃料来发电。采用氨水溶液提取污泥中的细胞外生物有机质 (EBOM)，在 MFC 运行前后，并用 XAD 树脂分级技术对其疏水性进行了表征。在 MFC 运行后，EBOM 的亲水部分（HPI）得到了富集（48.0%-64.5%），疏水性酸（HPO-A）部分减少（32.0%-14.5%），溶解性有机碳（DOC）去除了 36.8%，污泥芳香度降低了 65.7%。荧光测试表明，MFC 去除了污泥中芳香蛋白样和可溶性微生物副产物样物质。傅里叶变换红外（FT-IR）结果表明，在所研究的 MFC 中，脂肪族（与 C-H 相关）成分、烃类和碳水化合物容易水解和生物降解。
