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Title of Journal: Biotechnol Lett

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Abbravation: Biotechnology Letters

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Springer Netherlands

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DOI

10.1007/s10808-005-0027-3

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1573-6776

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Remediation of the effect of adding cyanides on an

Authors: Tamer Essam Marwa ElRakaiby Azza Agha
Publish Date: 2014/06/15
Volume: 36, Issue: 9, Pages: 1773-1781
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Abstract

The effect of inorganic pollutants on the treatment of organic pollutants using algal/bacterial microcosm was investigated in a continuous photobioreactor The microcosm was composed of Chlorella vulgaris MM1 and Pseudomonas MT1 and was able to efficiently treat artificial wastewater contaminated with 64 salicylate and 22 mM phenol at a hydraulic retention time of 4 days No negative effect was recorded when the wastewater was supplemented with 16 mM thiocyanate however the treatment efficiency severely deteriorated when the system was challenged with 074 mM cyanide Addition of 2 g NaHCO3 l−1 did not improve the efficiency of the treatment Toxicity of the pollutants to the alga was cyanide thiocyanate phenol salicylate The high toxicity of the wastewater was eliminated either by a 25fold dilution or by photocatalytic pretreatment which allowed the subsequent efficient biological treatment

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