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Removal of Two Chlorinated Compounds from Secondary Domestic Effluent by a Thin Film Technique
Author(s) -
Dierberg Forrest E.,
Goulet Normand A.,
DeBusk Thomas A.
Publication year - 1987
Publication title -
journal of environmental quality
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.888
H-Index - 171
eISSN - 1537-2537
pISSN - 0047-2425
DOI - 10.2134/jeq1987.00472425001600040006x
Subject(s) - effluent , wastewater , chemistry , environmental chemistry , macrophyte , aquatic plant , environmental engineering , environmental science , ecology , biology
Removal of two chlorinated compounds from secondary domestic wastewater was examined in central Florida using four thin‐film raceways (7.32 m long by 1.22 m wide by 4.0 cm deep) containing the aquatic macrophyte pennywort ( Hydrocotyle umbellata L). Two raceways received secondary effluent amended with 5.0 mg/L of monochloramine plus 1.0 mg/L of 2,4‐dichlorophenol (2,4‐DCP) and two raceways received secondary effluent only (controls). Mass balances indicated 100% removal of monochloramine and >95% removal for 2,4‐DCP after loadings of 25.2 and 6.1 g/m 2 , respectively, over the 60‐d study. This study demonstrates the potential of aquatic macrophyte‐based thin film systems for reducing concentrations of chlorinated compounds to acceptable levels under high wastewater loadings and short residence times (∼ 10 h).