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http://dx.doi.org/10.4491/KSEE.2012.34.8.528

Ecotoxicity Evaluation of Phosphogypsum Recycle for Algae and Daphnia magna  

Park, Soo-Ho (Department of Environmental System Engineering, Chonnam National University)
Kim, Jongo (Department of Environmental Education, Mokpo National University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.34, no.8, 2012 , pp. 528-532 More about this Journal
Abstract
This study investigated the possibility of phosphogypsum (PG) recycle as an embankment material by eco-toxicity experiments for S. capricornutum, T. suecica and D. magna. The eco-toxicity experiment was studied according to column leachates from PG mixing ratio, and a specific growth rate of S. capricornutum was usually higher than that of T. suecica. For D. magna, 0.3 of toxicity unit was obtained, which indicated the below of toxicity value of 1 at PG50 condition during a 48-hr test. A minor effect of column leachate samples on three organisms was observed. This study suggested that PG was satisfied with the criteria of waste recycle and could be reused at PG30 condition.
Keywords
D. magna; Embankment Material; Phosphogypsum; S. capricornutum; T. suecica; Ecotoxicity;
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