Biodegradation of p-chlorophenol by a microalgae consortium

WATER RESEARCH

卷:38

Article

Lima, SAC ; Raposo, MFJ ; Castro, PML ; Morais, RM

关键词: adsorption;    biodegradation;    p-chlorophenol;    microalgae;    zeolite;   

DOI  :  10.1016/j.watres.2003.09.005

来源: Elsevier

【 摘 要 】

An aquatic community was recovered from a waste discharge container fed with several aromatic pollutants. After 3 months of selective enrichment with p-chlorophenol and p-nitrophenol, two microalgae species, Chlorella vulgaris and Coenochloris pyrenoidosa, were recovered from the microbial consortium. As an axenic culture, this microalgae consortium was able to remove p-chlorophenol under different photo-regimes. Cultures grown under a 24 h light regime were capable of biodegrading 50 mg l(-1) of p-chlorophenol within 5 days. Addition of zeolite, an adsorbing material, did not improve the p-chlorophenol removal. However, when p-chlorophenol at 150 mgl(-1) was fed to the culture supplemented with zeolite, the growth rate of the consortium improved, but the lag phase was longer (16 against 14 days in the absence of zeolite). (C) 2003 Elsevier Ltd. All rights reserved.

【 授权许可】

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