Performance and efficiency of a yeast biofilter for the treatment of a Nigerian fertilizer plant effluent
World Journal of Microbiology and Biotechnology, Volume 15, No. 4, Year 1999
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A biofilter composed of yeasts and cassava peel was used to detoxify fertilizer plant effluent. The biological oxygen demand was reduced on treatment from a range of 1200-1400 mg/l to a range 135-404 mg/l. The ammonia-nitrogen (NH3-N) and nitrate-nitrogen (NO3-N) were reduced after treatment from 1000 to 10 mg/l and from 100 to 17.6 mg/l, respectively. The biofilter is simple and easy to handle with high efficiency of 98%.