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Impacts of Sludge Volume and Age on the Formation of Disinfection Byproducts 污泥量和龄期对消毒副产物形成的影响
发布日期: 2006-06-01
这项关于污泥体积和年龄对消毒副产物形成的影响的研究的目的是: 确定沉淀污泥是否有助于消毒副产物(DBP) 组成 确定水质如何影响DBP水平;和 建议布莱克斯堡/克里斯蒂安堡/VPI(BCVPI)水的DBP控制策略 权威实验方法包括对沉淀池取样,用于: 污泥中的TTHM和HAA5 水和上覆水 微克/升; 总有机碳(TOC), 以mg/L为单位; 总氯,单位为mg/L; 水温,单位为ºC; UV254,cm-1;和 酸碱度。 污泥量计算包括: 现场记录的污泥深度 九个点沿着 盆 在Excel和区域中绘制 计算曲线下面积;和 面积x盆地宽度。 结论包括: 在正常条件下运行时 应用ClO2,“整体”TTHM和HAA5模型 可用于预测在土壤中形成的DBP水平 沉积盆地; 未发现污泥有助于DBP的形成,因此, 洗脸盆不是强制性的; 在夏季使用ClO2治疗时,预测 模型表明污泥对DBP有影响 组成和 沉淀池应经常清洗。包括表格、数字。
The objectives of this study on the impacts of sludge volume and age on the formation of disinfection byproducts were to: determine whether settled sludge contributes to disinfection byproduct (DBP) formation; determine how water quality affects DBP levels; and, suggest DBP control strategy for Blacksburg/Christiansburg/VPI (BCVPI) Water Authority. Experimental approach included sampling sedimentation basins for: TTHM and HAA5 in sludge water and overlying water, in µg/L; total organic carbon (TOC), in mg/L; total chlorine, in mg/L; water temperature, in ºC; UV254, cm-1; and, pH. Sludge volume calculation included: sludge depth recorded at nine points along length of basin; plotted in Excel and area under curve was calculated; and, area x width of basin. Conclusions included: when operating under normal conditions, and not applying ClO2, the "overall" TTHM and HAA5 models may be used to predict DBP levels formed in the sedimentation basins; sludge was not found to contribute to DBP formation and therefore, basin cleaning is not mandatory; when treating with ClO2 in summer months, predictive models suggested that sludge is influential in DBP formation; and, sedimentation basins should be cleaned frequently. Includes tables, figures.
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发布单位或类别: 美国-美国给水工程协会
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