Ahmed Asma, Jyothi Nimmakayala, Ramesh Adithya
Department of Chemical Engineering, Birla Institute of Technology and Science - Pilani, Hyderabad Campus, Jawaharnagar, Shameerpet Mandal, Hyderabad 500078, India E-mail:
Water Sci Technol. 2017 Jan;75(1-2):182-188. doi: 10.2166/wst.2016.507.
A single step process is proposed for ammonium removal from nitrogenous industrial effluents, with a concomitant generation of algal biomass. A microalgal strain found in the effluent treatment plant of a fertilizer industry in Mumbai, India was systematically adapted to remove up to 700 ppm of ammoniacal nitrogen from industrial wastewater, which is nearly four times higher than the ammonium tolerance reported in the literature as well as other algal strains tested in our laboratory. 18S rRNA sequencing revealed the strain to be Chlorella pyrenoidosa. Effects of process parameters such as pH, temperature and light intensity on cell growth and ammonium removal by the adapted cells were studied. Optimal conditions were found to be pH of 9, temperature of 30 °C and a light intensity of 3,500 Lux for the adapted cells.
本文提出了一种从含氮工业废水中去除铵的单步工艺，同时产生藻类生物质。在印度孟买一家化肥厂的污水处理厂中发现的一种微藻菌株，经过系统驯化后，能够从工业废水中去除高达700 ppm的氨氮，这几乎是文献报道的铵耐受性以及我们实验室测试的其他藻类菌株的四倍。18S rRNA测序显示该菌株为蛋白核小球藻。研究了pH、温度和光照强度等工艺参数对驯化细胞生长和铵去除的影响。发现驯化细胞的最佳条件为pH 9、温度30°C和光照强度3500勒克斯。
