Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
679572 | Bioresource Technology | 2015 | 37 Pages |
Abstract
A lab-scale novel bio-diatomite biofilm process (BDBP) was established for the polluted raw water pretreatment in this study. Results showed that a shorter startup period of BDBP system was achieved under the completely circulated operation mode, and the removal efficiencies of nitrogen and disinfection by-product precursor were effective at low hydraulic retention time of 2-4 h due to high biomass attached to the carrier and diatomite. A maximum NH4+-N oxidation potential predicted by modified Stover-Kincannon model was 333.3 mg Lâ1 dâ1 in the BDBP system, which was 4.7 times of that in the control reactor. Results demonstrated that the present of bio-diatomite favors the accumulation of functional microbes in the oligotrophic niche, and the pollutants removal performance of this novel process was enhanced for polluted raw water pretreatment.
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Authors
Guang-feng Yang, Li-juan Feng, Sha-fei Wang, Qi Yang, Xiang-yang Xu, Liang Zhu,