Kim J, Jung S
Kwater Academy, Kwater (Korea Water Resources Corporation), Daejeon 305-730, Korea.
Environ Technol. 2008 Dec;29(12):1265-73. doi: 10.1080/09593330802306139.
Filtration experiments were conducted to investigate soluble manganese removal in granular media filtration; sand, manganese oxide coated sand (MOCS), sand + MOCS (1:1) and granular activated carbon (GAC) were used as filter media. Manganese removal, manganese oxide accumulation, turbidity removal, and regeneration of MOCS under various conditions were examined. Soluble manganese removal by the MOCS column was rapid and efficient; most of the removal happened at the top (e.g. 5 cm) of the filter. When filter influent with an average manganese concentration of 0.204 mg l(-1) was fed through the filter columns, the sand + MOCS and MOCS columns removed 98.9% and 99.2% of manganese, respectively. However, manganese removal in sand and the GAC columns was not significant during the initial stage of filtration, but after eight months of filter run they could remove 99% and 35% of manganese, respectively. It was revealed that partial replacement of sand with MOCS showed comparable manganese removal to that of the MOCS filter media.
进行了过滤实验以研究颗粒介质过滤中可溶性锰的去除情况；使用沙子、涂覆氧化锰的沙子（MOCS）、沙子 + MOCS（1:1）和颗粒活性炭（GAC）作为过滤介质。研究了在各种条件下锰的去除、氧化锰的积累、浊度的去除以及MOCS的再生情况。MOCS柱对可溶性锰的去除迅速且高效；大部分去除发生在过滤器顶部（例如5厘米处）。当平均锰浓度为0.204毫克/升的过滤进水通过过滤柱时，沙子 + MOCS柱和MOCS柱分别去除了98.9%和99.2%的锰。然而，在过滤初期，沙子柱和GAC柱中锰的去除并不显著，但在过滤器运行八个月后，它们分别可以去除99%和35%的锰。结果表明，用MOCS部分替代沙子显示出与MOCS过滤介质相当的锰去除效果。
