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首页> 外文会议>2010 American Water Works Association annual conference amp; exposition (ACE10) >Pilot-Scale Demonstration Study of Ozone/BAF at HCWP
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Pilot-Scale Demonstration Study of Ozone/BAF at HCWP

机译：HCWP中臭氧/ BAF的中试示范研究

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A pilot-scale demonstration study was conducted at the Hap Cremean Water Plant (HCWP) ofrnthe Columbus Division of Power and Water (DOPW) to evaluate intermediate ozonation followedrnby biologically-active filtration (BAF). The primary goal of the study was to lower the level ofrndisinfection by-product (DBP) precursors present in the source water for the HCWP; resulting inrnlower DBPs in the distribution system following chlorination.rnThe pilot-scale study was conducted over a 9-month period (April through December) andrninvolved ozonation/BAF of full-scale, softened and recarbonated water from the HCWP.rnParameters varied during the study included applied ozone dose, pH value and water temperature.rnThe pilot-plant influent was spiked with atrazine over a 3-week period to document removal ofrnthis chemical achievable by ozone/BAF treatment.rnThe results from the study indicate a significant improvement in the finished water qualityrnfollowing ozone/BAF treatment under all applied conditions. The BAF filters provided arnsubstantial additional removal of total organic carbon (TOC), dissolved organic carbon (DOC),rnultraviolet absorbance at 254nm (UV254) and specific UV absorbance (SUVA) values, completernremoval of atrazine, and exhibited lower simulated distribution system (SDS) concentrations ofrnTTHMs and HAA5. Higher levels of TOC removal took place at higher ozone doses, at higherrnpH values and at higher water temperatures (i.e., under conditions that favor a higher ozonernuptake rate).
机译：在哥伦布水电部（DOPW）的Hap Cremean水厂（HCWP）进行了中试规模的示范研究，以评估中间臭氧氧化，然后进行生物活性过滤（BAF）。该研究的主要目标是降低HCWP的原水中存在的消毒副产物（DBP）前体的水平。导致氯化反应后分配系统中DBP的降低。rn在9个月的时间（4月至12月）中进行了中试规模的研究，并涉及了HCWP产生的全尺寸，软化和碳酸化水的臭氧化/ BAF。包括应用的臭氧剂量，pH值和水温。rn在3周的时间里，向中试工厂的废水中加入了阿特拉津，以证明通过臭氧/ BAF处理可以去除这种化学物质。rn研究结果表明，最终产品的显着改善。在所有应用条件下均经过臭氧/ BAF处理后的水质。 BAF滤光片可大量去除总有机碳（TOC），溶解的有机碳（DOC），254nm处的紫外线吸收（UV254）和特定的UV吸收率（SUVA）值，完全去除at去津，并显示较低的模拟分布系统（SDS） ）rnTTHMs和HAA5的浓度。在较高的臭氧剂量，较高的pH值和较高的水温下（即，在有利于较高的臭氧吸收率的条件下），较高的TOC去除率会发生。

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