这张幻灯片概述了在犹他州盐湖谷西北角的麦格纳水区对受污染的电渗析逆转浓缩物进行有效生物破坏的研究。背景信息包括:巴顿油井发现的高氯酸盐污染 领域 井水处理替代方案评估——电渗析逆转（EDR）； 混凝/压滤中试研究； 砷处理方案评价；并且，选择EDR进行高氯酸盐的联合处理， 砷和总溶解固体（TDS）。课程包括:生物残留物处理；混合燃料的生物破坏 残余氧化剂——BIOBROx；还有，台架试验。本演示还概述了AwwaRF PCR-废水处理厂（WWTP）固定膜 本研究旨在评估固定膜反应器的使用情况 改善污水处理厂的高氯酸盐降解动力学。位于氧化沟上游的固定膜反应器 可能提供/允许: 稳定的微生物代谢； 厌氧微环境；和 最大限度地利用基板。本演示中概述的第三项研究涉及砷/高氯酸盐的联合去除 以及通过 电渗析逆转+BIOBROx。BIOBROx试点测试目标包括: 证明BIOBROx方法的有效性； 制定混合比和混合比的设计标准 EBCT； 证明持续去除高氯酸盐；评估过程中的稳健性 系统故障（系统关闭、WW馈送） 失败、WW的日变化）； 和 确定最佳生物生长支持培养基。实验设计包括: 第一阶段-生物适应；第2阶段-%混合和EBCT优化； 第三阶段——持续移除； 第4阶段——稳健性表征；和 使用四种不同的biogrowth支持介质进行测试: 3个不同尺寸的GAC和1个塑料介质。得出的结论包括: 高效、持续地去除EDR中的氧化剂 可使用BIOBROx工艺实现浓缩； 完全降解； 接触时间短； 废水只是一种修正； BIOBROx在处理混乱方面表现强劲； WW关闭； 温度日变化； 系统关闭；和 最佳生物生长支持培养基为GAC和 有效尺寸约为1.4-2.0毫米。包括数字。

This slide presentation outlines a study on efficient biodestruction of contaminated electrodialysis reversal concentrate at the Magna Water District in the northwest corner of the Salt Lake Valley, Utah. Background information includes: perchlorate contamination discovered at Barton Well Field; Well Water Treatment Alternatives Evaluation - electrodialysis reversal (EDR); Coagulation/Pressure Filtration Pilot Studies; Arsenic Treatment Alternatives Evaluation; and, EDR selected for the combined treatment of perchlorate, arsenic, and total dissolved solids (TDS). Topics covered include: biological residuals treatment; Biodestruction of Blended Residual Oxidants - BIOBROx; and, Bench-Scale Testing. The presentation also outlines an AwwaRF PCR - wastewater treatment plant (WWTP) Fixed-Film Study with the objectives of evaluating the use of a fixed-film reactor for improving perchlorate degradation kinetics at a WWTP. Fixed-film reactor placed upstream of the oxidation ditches might provide/allow: steady microbial metabolism; anaerobic microenvironments; and, maximized availability of substrate. A third study outlined in this presentation dealt with Combined Arsenic/Perchlorate Removal and Residuals Treatment by Electrodialysis Reversal + BIOBROx. BIOBROx Pilot Test Objectives included: demonstrate efficacy BIOBROx approach; develop design criteria for blend ratio and EBCT; demonstrate sustained perchlorate removal; evaluate robustness of the process during system upsets (system shut-downs, WW feed failures, diurnal variations in WW); and, identify optimal biogrowth support medium. Experimental design included: Phase 1 - Biological Acclimation; Phase 2 - % Blend and EBCT Optimization; Phase 3 - Sustained Removal; Phase 4 - Robustness Characterization; and, test with four different biogrowth support media: 3 GACs of different sizes and 1 plastic medium. Conclusions drawn include: efficient, sustained removal of oxidants in EDR concentrate can be achieved using BIOBROx process; complete degradation; short contact times; wastewater is only amendment; BIOBROx is robust with respect to process upsets; WW shut-off; Temperature; Diurnal variation; System shut-downs; and, Optimal biogrowth support medium was GAC with an effective size ~ 1.4-2.0 mm. Includes figures.