Publications by Hojatallah Seyedy Niasar

Publications by authors named "Hojatallah Seyedy Niasar"

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Continuous column adsorption of naphthenic acids from synthetic and real oil sands process-affected water (OSPW) using carbon-based adsorbents.

Hojatallah Seyedy Niasar Sreejon Das Chunbao Charles Xu Madhumita B Ray

Chemosphere

January 2019

Article Synopsis

The study tested activated petroleum coke (APC) and commercial activated carbon (CAC) for removing naphthenic acids and organics from contaminated oil sands water.
APC achieved complete removal of specific naphthenic acid compounds and significantly improved total organic carbon (TOC) removal rates when the water was acidified to pH 4.
Overall, APC outperformed CAC and showed efficient regeneration capabilities while maintaining adsorption effectiveness after multiple cycles.

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Preparation of activated petroleum coke for removal of naphthenic acids model compounds: Box-Behnken design optimization of KOH activation process.

Hojatallah Seyedy Niasar Hanning Li Sreejon Das Tirumala Venkateswara Rao Kasanneni Madhumita B Ray

J Environ Manage

April 2018

This study employed Box-Behnken design and response surface methodology to optimize activation parameters for the production of activated petroleum coke (APC) adsorbent from petroleum coke (PC) to achieve highest adsorption capacity for three model naphthenic acids. Activated petroleum coke (APC) adsorbent with a BET surface area of 1726 m/g and total pore volume of 0.85 cc/g was produced at the optimum activation conditions (KOH/coke mass ratio) of 3.

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