Vol 6, No 7 (2015) > Chemical Engineering >

The Removal of Dissolved Ammonia from Wastewater through a Polypropylene Hollow Fiber Membrane Contactor

Sutrasno Kartohardjono, Muhammad Iwan Fermi, Yuliusman Yuliusman, Kezia Elkardiana, Ananda Putra Sangaji, Alfi Maghfirwan Ramadhan



This study aims to evaluate the effectiveness of a polypropylene hollow fiber membrane
contactor in
removing dissolved ammonia in wastewater using sulfuric acid solution as
an absorbent. In the ammonia removal
experiments, wastewater and absorbent solutions flowed through the shell side and
the lumen side of the contactor, respectively. The pH of wastewater, rate of circulation and ammonia initial
concentration were operating variables which influenced the efficiency of the
removal process. The efficiency of ammonia removal increases with the
wastewater pH level when it is at the
same circulation rate and time. In addition, the increase in the circulation
rate of the wastewater will increase the efficiency of ammonia removal and the
overall mass transfer coefficient. Meanwhile, the efficiency of ammonia removal
and the overall mass transfer coefficient decreased with initial ammonia concentration in the wastewater solution.

Keywords: Ammonia; Efficiency of ammonia removal; Mass transfer; Polypropylene

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