Quick start-up of filter for removing manganese by contact oxidation method
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Quick start-up of filter for removing manganese by contact oxidation method
CIESC JournalIssue 5, Pages: 1435-1440(2011)
作者机构:
吉林大学地下水资源与环境教育部重点实验室,吉林,长春,130021
作者简介:
基金信息:
DOI:
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Online First:05 May 2011,
Published:05 May 2011
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ZHONG Shuang, Lü Cong, WANG Sijia, et al. Quick start-up of filter for removing manganese by contact oxidation method[J]. CIESC Journal, 2011, (5): 1435-1440.
DOI:
ZHONG Shuang, Lü Cong, WANG Sijia, et al. Quick start-up of filter for removing manganese by contact oxidation method[J]. CIESC Journal, 2011, (5): 1435-1440.DOI:
Quick start-up of filter for removing manganese by contact oxidation method
Using cheap river sands as packing material and applying ozone non- continuous aeration
Mn2+ in raw water was oxidized into insoluble compounds that attached to sand surface and formed activated membrane having ability to remove manganese.The activated membrane became mature within only five days under the experimental conditions: ozone aeration four times a day
10 min each time at 50ml·min-1.The concentration of Mn2+ in effluent could be lower than 0.1 mg·L-1.The maturity period of the filter for manganese removal was significantly reduced.The optimum operation condition for the mature filter was also explored.The results indicated that the filter surface membrane could maintain efficiency for a long time at the following conditions: manganese concentration in raw water 1.5 mg·L-1
pH higher than 7.0
dissolved oxygen concentration more than 6.5 mg·L-1 and water flow rate less than 0.6 m·h-1.