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Optimization of Biological Treatment of Perchlorate and Nitrate-Laden Ion Exchange Residuals 高氯酸盐和硝酸盐离子交换残渣生物处理的优化
发布日期: 2006-11-01
通过实验室和中试研究,使用 醋酸盐和氢都是电子供体。使用醋酸纤维的中试规模演示 序批式反应器(SBR)表明,该工艺能够持续降低 废盐水(6%NaCl)中的高氯酸盐和硝酸盐浓度低于处理目标(ClO4- <100µg/L和NO3-<0.5 mg/L)持续20个循环。使用100 mg/L高氯酸盐进行台架试验 而100mg/L硝酸盐负载的合成盐水表明,氢供料膜生物膜反应器 (MBfR)可以证明硝酸盐减少约100%,高氯酸盐减少约60%。 包括20个参考文献、表格和图表。
The biological brine treatment was evaluated through both bench- and pilot-scale studies using both acetate and hydrogen as electron donors. Pilot-scale demonstration using acetate-fed sequencing batch reactor (SBR) showed that the process was able to consistently reduce perchlorate and nitrate concentrations in the spent brine (6% NaCl) below treatment goals (ClO4- < 100 µg/L and NO3- < 0.5 mg/L) for 20 cycles. Bench-scale testing with 100 mg/L perchlorate and 100 mg/L nitrate laden synthetic brine showed that hydrogen-fed membrane biofilm reactor (MBfR) could demonstrate about 100% nitrate reduction and about 60% perchlorate reduction. Includes 20 references, 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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