微生物電化學污水處理技術的優(yōu)勢與挑戰(zhàn)
發(fā)布時間:2018-04-09 16:54
本文選題:微生物電化學技術 切入點:污水能量回收 出處:《電化學》2017年03期
【摘要】:微生物電化學技術(Microbial Electrochemical Technology,MET)作為一種新型水處理工藝,由于具有污染物同步去除和能源化的特點受到廣泛重視.近年來,微生物電化學系統(tǒng)(Microbial Electrochemical System,MES)的研究者在其電子傳遞機理、功能菌群分析、系統(tǒng)功能拓展、低成本材料開發(fā)和大型系統(tǒng)構建等方面取得大量進展.然而,該技術作為污水處理工藝的可行性卻始終存在爭議.本文從應用角度將MET工藝與現(xiàn)有厭氧、好氧工藝進行對比,分析各工藝在有機物降解和能量回收方面的特點,有助于找到MET工藝在水處理領域中的適宜定位.相對厭氧與好氧工藝,MET工藝具有低污泥產率、運行過程能量自給以及電流加速污染物去除等優(yōu)勢特征,但在推進MET工藝的實用化進程中仍需進一步簡化其系統(tǒng)結構、降低構筑成本、提高運行穩(wěn)定性,并應基于MET的運行特征確定其適宜的應用范圍以發(fā)揮MET工藝的技術優(yōu)勢.
[Abstract]:Microbial Electrochemical Technology (met), as a new water treatment process, has attracted much attention due to its characteristics of simultaneous removal of pollutants and energy conversion.In recent years, researchers of microbial Electrochemical system have made great progress in their electronic transport mechanism, functional microflora analysis, system functional expansion, low-cost material development and large-scale system construction.However, the feasibility of the technology as a sewage treatment process has always been controversial.This paper compares the MET process with the existing anaerobic and aerobic processes from the application point of view, analyzes the characteristics of each process in organic matter degradation and energy recovery, which is helpful to find the suitable location of the MET process in the field of water treatment.Compared with the anaerobic and aerobic process, met process has the advantages of low sludge yield, energy self-sufficiency during operation, and current accelerated pollutant removal. However, it is still necessary to further simplify the system structure in the process of practical application of MET process.It is necessary to reduce the construction cost and improve the operation stability, and the suitable application scope should be determined based on the operation characteristics of MET in order to give full play to the technical advantages of MET process.
【作者單位】: 哈爾濱工業(yè)大學城市水資源與水環(huán)境國家重點實驗室;
【基金】:國家杰出青年科學基金(No.51125033) 中歐國際科技合作專項(No.2014DFE90110)資助
【分類號】:O646;X703.1
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