Invertebrate community characteristics in biologically active carbon filter
Xiaowei Li , Yufeng Yang , Lijun Liu , Jinsong Zhang , Qing Wang
DOI:
Received August 20, 2009,Revised November 06, 2009, Accepted , Available online
Volume 22,2010,Pages 648-655
- Summary
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Biologically active carbon (BAC) system was set up in a water plant of South China during January to December 2007, to study the
invertebrate community characteristics of BAC filter. Thirty-seven invertebrate species were found, of which 28 belonging to rotifers.
Filter operation could lead to an output of invertebrates in high abundances with the filtrate, and the maximum density could reach
5608 individuals/m3. Average abundances in the e uent water increased in 27–33 folds in comparison to the influent water during
the sampling period. Invertebrate community succession had the following trend: filter-feeding animals ! small benthic invertebrates
! large benthic and resistant invertebrates. Abundances of large-sized invertebrates (copepod adult and oligochaete) at bigger-media
column were significantly higher than that at small-media column. The results implied the abundant species diversity of invertebrate in
BAC filter. The relationship between invertebrate and biofilm still remain to be studied in detail.
