Study of moving bed biofilm reactor in diethyl phthalate and diallyl phthalate removal from synthetic wastewater

Bioresource Technology
Ehsan AhmadiAli Azari

Abstract

Phthalic acid esters have received significant attention over the last few years since they are considered as priority pollutants. In this study, effects of different operation conditions including hydraulic retention time, phthalates loading rates and aeration rate on process performance of moving bed biofilm reactor (MBBR) for removing diethyl phthalate (DEP) and diallyl phthalate (DAP) from synthetic wastewater was evaluated. In optimum conditions, 94.96% and 93.85% removal efficiency were achieved for DEP and DAP, respectively. Moreover, MBBR achieved to remove more than 92% of COD for both phthalates. The results showed that DEP had a higher biodegradation rate compared to DAP, according to the selected parameters such as half saturation constant, overall reaction rate and maximum specific growth rate. The Grau second order model found as the best model for predicting MBBR performance due to its high correlation coefficients and more conformity of its kinetic coefficients to the results.

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Citations

Apr 8, 2016·Environmental Science and Pollution Research International·Mohammad MiriMohsen Yazdani Aval
May 9, 2015·Environmental Science and Pollution Research International·Quan YuanShengzhi Zheng
Oct 30, 2016·Bioresource Technology·Jyoti TiwariAmit Bafana
Oct 22, 2016·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Siyao WangCheng Wei
Sep 7, 2017·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Amir Mohammad Mansouri, Ali Akbar Zinatizadeh
Feb 8, 2020·Journal of Environmental Health Science & Engineering·Mojtaba Yegane BadiAli Azari

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