A Hybrid Treatment System Combining Enforced Diatomite Process Followed by Biological Aerated Filters for Wastewater Treatment

Wei Liang Wang; Xue Jun Bi; Bo Zhang

doi:10.4028/www.scientific.net/AMR.588-589.2055

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 588-589A Hybrid Treatment System Combining Enforced...

A Hybrid Treatment System Combining Enforced Diatomite Process Followed by Biological Aerated Filters for Wastewater Treatment

Abstract:

A hybrid treatment system combining enforced diatomite process followed by biological aerated filters (BAF) was developed for treatment of municipal wastewater. Most pollutants, especially phosphorus, were removed in the enforced diatomite process and BAFs took a role of polishing process. New ceramic filter media and ceramisite agitator were used in two BAFs for comparison. The results showed that when the average influent CODcr was 347mg/L, NH4+-N 49mg/L and TP 6.1mg/L, the removal efficiency was 92.6%, 99.8%, and 96.4% respectively at the operating conditions of precise diatomite dosage of 75mg/L, the sludge reflux ratio 100%, the HRT of 30min in diatomite enhanced primary treatment process and the HRT of 1.5h in BAF.

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Periodical:

Advanced Materials Research (Volumes 588-589)

Pages:

2055-2059

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.588-589.2055

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Online since:

November 2012

Authors:

Wei Liang Wang, Xue Jun Bi, Bo Zhang

Keywords:

Biological Aerated Filter (BAF), Ceramisite Agitator, Diatomite, New Ceramic Filter Media, Wastewater

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References

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