Struvite precipitation for the recovery of ammonium nitrogen from landfill leachate / by Mohamad S. J. Darwish, 1987-, author 609907, Azmi Aris, supervisor 263408, Mohd. Hafiz Puteh, supervisor 457613, Aeslina Abdul Kadir, supervisor 457792, Fakulti Kejuruteraan Awam 8022