两种PTFE膜对污泥好氧发酵参数影响研究

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英文篇名：Study on the effect of two kinds of PTFE membranes on the sludge aerobic fermentation parameters 作者：邹锦林 ; 李伟光 ; 吴传栋 ; 王科 ; 项菲菲 英文作者：Zou Jinlin;Li Weiguang;Wu Chuandong;Wang Ke;Xiang Feifei;Shanghai Municipal Engineering Research and Design Institute(Group)Co.,Ltd.;Environmental Engineering School,Harbin Institute of Technology; 关键词：PTFE膜 ; 改性 ; PTFE膜(ePTFE) ; 污泥 ; 好氧发酵 ; 硫化氢 英文关键词：PTFE membrane;;Enhanced PTFE membran(ePTFE);;Sludge;;Aerobic fermenta tion;;H_2S 中文刊名：JZJS 英文刊名：Water & Wastewater Engineering 机构：上海市政工程设计研究总院(集团)有限公司;哈尔滨工业大学市政环境工程学院; 出版日期：2016-04-10 出版单位：给水排水 年：2016 期：v.52;No.414 语种：中文; 页：JZJS201604008 页数：4 CN：04 ISSN：11-4972/TU 分类号：38-41

摘要

针对纺织用PTFE膜和经过特殊加工的改性PTFE膜(ePTFE膜),进行覆盖污泥好氧发酵对比试验,探索ePTFE膜对污泥发酵过程中污泥含水率、硫化氢、氨气等气体产生规律的影响。试验结果表明,相对普通PTFE膜,ePTFE膜具有更佳的堆体保温性能,同时具备更好的透气性能。相对空白试验,两种膜对硫化氢散发均具有较大的阻隔作用,发酵初期硫化氢浓度较空白试验降低64%左右。ePTFE膜对氨气的阻隔作用大大优于纺织用PTFE膜,空白试验和纺织用PTFE膜覆盖发酵累积氨气挥发量大致相当(约330mg/d),而ePTFE膜覆盖条件下,污泥发酵累积氨气挥发量仅为150mg/d左右,其高峰期臭气浓度大大降低。
        Using textile PTFE membrane and enhance PTFE membrane(ePTFE)as coverage,a comparison sludge aerobic fermentation experiment was carried out to study the impacts of ePTFE membrane on water content,hydrogen sulfide,ammonia,and other gases in sludge fermentation process.The results showed that compared with PTFE membrane,ePTFE membrane had better performance on pile thermal insulation and air permeability.Compared with blank experiment,both membranes showed great block performance on hydrogen sulfide emission,which was highlighted by the fact that the hydrogen sulfide concentration decreased by about 64%in the initial fermentation stage.The barrier effect of ePTFE membrane on ammonia gas was much better than that of the textile PTFE membrane.The cumulative ammonia volatilizations of blank experiment and textile PTFE membrane experiment were roughly equivalent(about 330 mg/d);however,the amount of ammonia volatilization in ePTFE experiment was only about 150mg/d,which meant that the peak of odor concentration was greatly reduced.

引文

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