两级碟管式反渗透系统在垃圾渗滤液处理中的应用
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摘要
研究了两级碟管式反渗透系统在四川某城市生活垃圾填埋场渗滤液处理中的应用。研究表明:DTRO仍然存在浓差极化现象;在经过预处理后正常工况下,一级DTRO氨氮的去除率能够达到95.1%~97.8%、脱盐率在96.6%~97.7%,UV254的去除率在96.4%~97.4%;二级DTRO氨氮去除率在86.5%~92.1%,脱盐率在87.2%~89.6%;UV254的去除率仅在10%~40%;随着二级DTRO运行压力的增加,膜通量增加,氨氮去除率与脱盐率则降低。
This paper studied the application of two stage disc tube reverse osmosis( DTRO) system in the treatment of landfill leachate in a municipal solid waste landfill in Sichuan. The research showed that the concentration polarization phenomenon still existed in DTRO. Under normal condition and after pretreatment,the removal rate of NH_4~+-N at first stage DTRO can reach 95. 1% ~ 97. 8 %,the desalting rate was 96. 6% ~ 97. 7 %,the removal rate of UV254 was 96. 4% ~ 97. 4 %. In second stage DTRO,the removal rate of NH_4~+-N was 86. 5% ~ 92. 1 %,the desalting rate was 87. 2% ~ 89. 6 %,and the removal rate of UV254 was only 10% ~ 40 %. With the increase of the operating pressure of the two stage DTRO,the membrane flux increased and the removal rate of NH_4~+-N and the desalination rate decreased.
This paper studied the application of two stage disc tube reverse osmosis( DTRO) system in the treatment of landfill leachate in a municipal solid waste landfill in Sichuan. The research showed that the concentration polarization phenomenon still existed in DTRO. Under normal condition and after pretreatment,the removal rate of NH_4~+-N at first stage DTRO can reach 95. 1% ~ 97. 8 %,the desalting rate was 96. 6% ~ 97. 7 %,the removal rate of UV254 was 96. 4% ~ 97. 4 %. In second stage DTRO,the removal rate of NH_4~+-N was 86. 5% ~ 92. 1 %,the desalting rate was 87. 2% ~ 89. 6 %,and the removal rate of UV254 was only 10% ~ 40 %. With the increase of the operating pressure of the two stage DTRO,the membrane flux increased and the removal rate of NH_4~+-N and the desalination rate decreased.
引文
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[3]左俊芳,宋延冬,王晶.碟管式反渗透(DTRO)技术在垃圾渗滤液处理中的应用[J].膜科学与技术,2011,31(2):110-114.
[4]席北斗,何小松,赵越,等.填埋垃圾稳定化进程的光谱学特性表征[J].光谱学与光谱分析,2009,(9):2475-2479.
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[6]王晓琳,丁宁.反渗透和纳滤技术与应用[M].北京,化学工业出版社,2005.
[7]刘飞.DTRO工艺处理垃圾渗滤液的研究[J].环境科技,2015,28(2):25-29.
[8]肖入峰.反渗透膜系统处理维生素C凝结水试验研究[D].成都:西南交通大学,2012.
[2]武江津,刘桂中,孙长虹.膜分离技术在垃圾渗滤液处理中的研究与应用[J].膜科学与技术,2007,27(6):1-5.
[3]左俊芳,宋延冬,王晶.碟管式反渗透(DTRO)技术在垃圾渗滤液处理中的应用[J].膜科学与技术,2011,31(2):110-114.
[4]席北斗,何小松,赵越,等.填埋垃圾稳定化进程的光谱学特性表征[J].光谱学与光谱分析,2009,(9):2475-2479.
[5]Williams M E.A Review of Reverse Osmosis Theory[Z].Williams Engineering Service Company,2003.
[6]王晓琳,丁宁.反渗透和纳滤技术与应用[M].北京,化学工业出版社,2005.
[7]刘飞.DTRO工艺处理垃圾渗滤液的研究[J].环境科技,2015,28(2):25-29.
[8]肖入峰.反渗透膜系统处理维生素C凝结水试验研究[D].成都:西南交通大学,2012.