Mg/Al layered double hydroxide for bacteriophage removal in aqueous solution.
Mg/Al layered double hydroxide for bacteriophage removal in aqueous solution.
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Mg/Al 层状双氢氧化物，用于去除水溶液中的噬菌体。
DOI：
10.2166/wst.2012.239
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Song
中科院分区：
文献类型：
--
作者：
Jae‐Hyun Kim;Jeong;Song
本研究的目的是研究镁铝层状双氢氧化物(LDH)中噬菌体的去除。以镁铝乳酸脱氢酶粉末形式的MS2噬菌体在不同乳酸脱氢酶剂量下进行批量实验。用MS2和phiX174噬菌体将镁铝乳酸脱氢酶固定在沙面上，在流过条件下进行了柱实验。批量试验表明，在给定的实验条件下(LDH投加量=2 g/L，MS2初始浓度=4.61×10(5)pfu/mL)，粉末状镁铝LDH对MS2有较好的去除效果，其去除能力为2.2×10(8)pfu/g。柱实验表明，100%镁铝包覆砂对phiX174的去除效果为4.40，石英砂对phiX174的去除效果为0.05。这些结果表明，与砂相比，镁铝包覆LDH砂对噬菌体的去除效果更好。在100%mg/Al LDH涂层砂中，MS2的去除对数大于4log(=5.44)。本研究证明了镁铝LDH在水处理中脱毒的潜在应用。
The objective of this study was to investigate the removal of bacteriophages in Mg/Al layered double hydroxide (LDH). Batch experiments were performed with bacteriophage MS2 in a powder form of Mg/Al LDH under various LDH doses. Column experiments were also performed under flow-through condition with bacteriophages MS2 and phiX174 in Mg/Al LDH immobilized on sand surfaces. Batch tests demonstrated that the powder form of Mg/Al LDH was effective in removing MS2 with the removal capacity of 2.2 × 10(8) plaque forming unit (pfu)/g under the given experimental conditions (LDH dose = 2 g/L; initial MS2 concentration = 4.61 × 10(5) pfu/mL). Column experiments showed that the log removal of phiX174 was 4.40 in columns containing 100% Mg/Al LDH-coated sand while it was 0.05 in 100% quartz sand. These findings indicated that Mg/Al LDH-coated sand was effective in removing bacteriophages compared with sand. A more than 4 log removal (=5.44) of MS2 was achieved in 100% Mg/Al LDH-coated sand. This study demonstrates the potential application of Mg/Al LDH for virus removal in water treatment.