Affiliation:
1. Department of Chemical Engineering, Birla Institute of Technology and Science – Pilani, Hyderabad Campus, Jawaharnagar, Shameerpet Mandal, Hyderabad 500078, India
Abstract
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.
Subject
Water Science and Technology,Environmental Engineering
Reference31 articles.
1. Toxicity of ammonia to algae in sewage oxidation ponds;Abeliovich;Applied and Environmental Microbiology,1976
2. The effect of media on biomass and oil production in Botryococcus braunii strains Kossou-4 and Overjuyo-3;Al-hothaly;International Journal of Clean Coal and Energy,2015
3. Free ammonia inhibition of algal photosynthesis in intensive cultures;Azov;Applied and Environmental Microbiology,1982
4. Resistance of Spirulina platensis to ammonia at high pH values;Belkin;Plant and Cell Physiology,1991
5. The effects of temperature on the growth of and ammonia uptake by marine microalgae;Chen;Botanical Studies,2012
Cited by
8 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献