Abstract:In this study, ammonium and manganese were simultaneously removed from surface water by iron-manganese co-oxides film coated on the surface of quartz sand in a pilot-scale filter system, and the removal efficiency and kinetics were extensively investigated. The experiment results showed that ammonium and manganese from surface water could be removed effectively by the active oxides film, and the removal efficiency exceeded 90%. The removal of ammonium and manganese was found to be fitted to the pseudo-first order kinetic equation, but the kinetic coefficients were changed in the ranges of influent ammonium and manganese concentration. The effluent ammonium and manganese concentration of the filter column could meet the drinking water quality standards when the filtration rates were in the range of 4~13m/h and the removed ammonium and manganese by per volumetric filter media were increased with the increase of filtration rates. The relationship between the required filter depth to remove NH4+-N/Mn2+ below the permitted limits and the filtration rates followed a power function. The experiment results also showed that the active oxides film had a good tolerance to low water temperature. Even if the water temperature dropped to 10℃, it could be removed effectively to meet the standards of water quality when the influent ammonium and manganese concentration was 2.0mg/L and 0.9mg/L, respectively.
白筱莉, 黄廷林, 张瑞峰, 文刚. 铁锰复合氧化膜同步去除地表水中氨氮和锰[J]. 中国环境科学, 2017, 37(12): 4534-4540.
BAI Xiao-li, HUANG Ting-lin, ZHANG Rui-feng, WEN Gang. The simultaneous removal of ammonium and manganese from surface water by iron-manganese co-oxides film. CHINA ENVIRONMENTAL SCIENCECE, 2017, 37(12): 4534-4540.
Abu Hasan H, Sheikh Abdullah S R, Kamarudin S K, et al. Simultaneous NH4+-N and Mn2+ removal from drinking water using a biological aerated filter system:Effects of different aeration rates[J]. Separation and Purification Technology, 2013, 118(118):547-556.
Guo Y, Huang T, Wen G, et al. The simultaneous removal of ammonium and manganese from groundwater by iron-manganese co-oxide filter film:The role of chemical catalytic oxidation for ammonium removal[J]. Chemical Engineering Journal, 2016, 308:322-329.
[12]
Cheng Y, Huang T, Sun Y, et al. Catalytic oxidation removal of ammonium from groundwater by manganese oxides filter:Performance and mechanisms[J]. Chemical Engineering Journal, 2017,322:82-89.
[13]
Štembal T, Marki? M, Ribi?i? N, et al. Removal of ammonia, iron and manganese from groundwaters of northern Croatia-pilot plant studies[J]. Process Biochemistry, 2005,40(1):327-335.
[14]
国家环境保护总局.水和废水监测分析方法.(第4版)[M]. 中国环境科学出版社, 2002.
[15]
Andersson A, Laurent P, Kihn A, et al. Impact of temperature on nitrification in biological activated carbon (BAC) filters used for drinking water treatment[J]. Water Research, 2001,35(12):2923-2934.
[16]
Verstraete W, Focht D D. Biochemical Ecology of Nitrification and Denitrification[J]. Advances in Microbial Ecology, 1977, 1(6):135-214.
[17]
Qin W, Li W G, Zhang D Y, et al. Ammonium removal of drinking water at low temperature by activated carbon filter biologically enhanced with heterotrophic nitrifying bacteria[J]. Environmental Science and Pollution Research, 2016,23(5):4650-4659.
[18]
Lee C O, Boe-Hansen R, Musovic S, et al. Effects of dynamic operating conditions on nitrification in biological rapid sand filters for drinking water treatment[J]. Water Research, 2014, 64(7):226-236.
[19]
Hoyland V W, Knoche W R, Pruden A, et al. Effect of drinking water treatment process parameters on biological removal of manganese from surface water[J]. Water Research, 2014,66(66):31-39.
[20]
Katsoyiannis I A, Zouboulis A I. Biological treatment of Mn(Ⅱ) and Fe(Ⅱ) containing groundwater:kinetic considerations and product characterization[J]. Water Research, 2004,38(7):1922-1932.