Ozone and UV254 Radiation for Municipal Wastewater Disinfection

被引：16

作者：

Blatchley, Ernest R., III

Weng, ShihChi ^{[1
,2
]}

Afifi, Mehrnaz Zare ^{[1
,2
]}

Chiu, Hsiao-Han ^{[3
]}

Reichlin, Douglas B. ^{[4
]}

Jousset, Stephane ^{[5
]}

Erhardt, Richard S. ^{[5
]}

机构：

[1] Purdue Univ, Sch Civil Engn, W Lafayette, IN 47907 USA

[2] Purdue Univ, Div Environm & Ecol Engn, W Lafayette, IN 47907 USA

[3] Citizens Energy Grp, Indianapolis, IN 46221 USA

[4] Strateg Partners LLC, Baltimore, MD 21202 USA

[5] Malcolm Pirnie ARCADIS, Indianapolis, IN 46240 USA

来源：

WATER ENVIRONMENT RESEARCH | 2012年 / 84卷 / 11期

关键词：

disinfection; E; coli; ozone; UV; wastewater; BACILLUS-SUBTILIS SPORES; ADVANCED OXIDATION; UV DISINFECTION; SEQUENTIAL INACTIVATION; ESCHERICHIA-COLI; PARAMETERS; FLOW; DECOMPOSITION; KINETICS; QUALITY;

D O I：

10.2175/106143012X13373550426634

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Bench-scale experiments were conducted with municipal wastewater effluent samples to examine the feasibility of combined application of ozone and ultraviolet (UV) radiation for disinfection. Effluent samples displayed rapid initial ozone demand, which promotes ozone transfer but diminishes disinfection efficacy. Ozone doses up to 10 mg/L yielded only trace quantities of residual ozone; despite the fact that initial ozone demand was never exceeded, quantifiable (though variable) inactivation of E. coli was observed, along with modest improvements of UV transmittance. Results from collimated beam experiments demonstrated that compliance with effluent discharge permit limitations could be achieved consistently with a UV254 dose of 12.4 mJ/cm(2) at a pre-ozonation dose of 2 to 3 mg/L. In the absence of pre-ozonation, consistent compliance was observed at a UV dose of 16.5 mJ/cm(2). No evidence of synergism between ozone and UV254 radiation was found in the measured inactivation responses of E. coli. Water Environ. Res., 84, 2017 (2012).

引用

页码：2017 / 2027

页数：11

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