Effect on Bed Material Heights to the Performance of ZCBAF in the Treatment of Micro-Polluted Raw Water

Jin Xiang Liu; Shui Bo Xie; Chun Ning Cheng; Jin Sheng Lou; Shi You Li

doi:10.4028/www.scientific.net/AMM.209-211.2053

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 209-211Effect on Bed Material Heights to the Performance...

Effect on Bed Material Heights to the Performance of ZCBAF in the Treatment of Micro-Polluted Raw Water

Abstract:

The effect of bed material heights on treatment performance of pollutants from micro-polluted raw Water was studied in zeolite - Ceramics biological aerated filter(ZCBAF) technology. The test results showed the removal rate of CODMn, NH4+-N and UV254 will improve with the increase of media height, most of CODMn and UV254 were removed within the first 440mm , when the media height over 440mm, the effect of increase height is inconspicuous removal, and ammonia-nitrogen removal has evident improvement during 220-440mm. At the media height of 20mm, 40mm and 60mm in ZCBAF respectively, the removal efficiency of CODMn is 18.05%，31.6% and 38.62% respectively, NH4+-N removal efficiency is 29.78%,81.28% and 93.02% respectively , and UV254 removal efficiency is 7.81%，10.11% and 11.26% respectively under the air/water ratio of 1:1 and the hydraulic loading of 1.2m3/(m2.h). Removal rate of CODMn was decreased with the increase of hydraulic loading, and removal effect of NH4+-N and UV254 had not big influence.

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Periodical:

Applied Mechanics and Materials (Volumes 209-211)

Pages:

2053-2057

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.209-211.2053

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Online since:

October 2012

Authors:

Jin Xiang Liu, Shui Bo Xie, Chun Ning Cheng, Jin Sheng Lou, Shi You Li

Keywords:

Bed Material Height, Slightly Polluted Raw Water, Zeolite-Ceramics Biological Aerated Filter

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