A new hybrid treatment system of bioreactors and electrocoagulation for superior removal of organic and nutrient pollutants from municipal wastewater

Bioresource Technology
Dinh Duc NguyenYong Soo Yoon

Abstract

This paper evaluated a novel pilot scale hybrid treatment system which combines rotating hanging media bioreactor (RHMBR), submerged membrane bioreactor (SMBR) along with electrocoagulation (EC) as post treatment to treat organic and nutrient pollutants from municipal wastewater. The results indicated that the highest removal efficiency was achieved at the internal recycling ratio as 400% of the influent flow rate which produced a superior effluent quality with 0.26mgBOD5L(-1), 11.46mgCODCrL(-1), 0.00mgNH4(+)-NL(-1), and 3.81mgT-NL(-1), 0.03mgT-PL(-1). During 16months of operation, NH4(+)-N was completely eliminated and T-P removal efficiency was also up to 100%. It was found that increasing in internal recycling ratio could improve the nitrate and nitrogen removal efficiencies. Moreover, the TSS and coliform bacteria concentration after treatment was less than 5mgL(-1) and 30MPNmL(-1), respectively, regardless of internal recycling ratios and its influent concentration.

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Citations

Jul 18, 2014·Bioresource Technology·Dinh Duc NguyenYong Soo Yoon
Sep 18, 2015·BioMed Research International·W KhanitchaidechaK Futaba
Jul 28, 2015·Bioresource Technology·Liying Huang, Duu-Jong Lee
May 8, 2016·The Science of the Total Environment·D Duc NguyenYong S Yoon
Sep 25, 2017·Environmental Science and Pollution Research International·Dinh Duc NguyenHuu Hao Ngo
Aug 16, 2019·Environmental Science and Pollution Research International·Zakaria Al-QodahWaid Omar
Jul 3, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Hao PengYanhong Gong

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