4.8 Article

Removal of bis(2-ethylhexyl) phthalate at a sewage treatment plant

Journal

WATER RESEARCH
Volume 37, Issue 6, Pages 1385-1393

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0043-1354(02)00486-4

Keywords

di(2-ethylhexyl) phthalate; DEHP; wastewater; treatment; mass balance; fate

Ask authors/readers for more resources

Bis(2-ethylhexyl) phthalate (DEHP) concentrations were measured at different stages in a full-scale sewage treatment plant (STP) and mass balances were calculated. The DEHP load to treatment process coming from the sewer system and the internal load comprising returned supernatants and filtrate from sludge treatment and excess secondary sludge were at the same level. The DEHP removal efficiency from the water phase at the STP was on average 94% of sewage DEHP, the main removal process being sorption to primary and secondary sludges. On average 29% of DEHP was calculated to be removed in the biological nitrifying-denitrifying activated sludge process, which was much less than expected from laboratory biodegradation studies described in literature. Monoethylhexyl plithalate, the primary biotransformation product of DEHP, was not detected at any treatment stage. Approximately 32% of DEHP in sewage was removed during anaerobic digestion of the sludge, while 32% remained in the digested and dewatered sludge. (C) 2003 Elsevier Science Ltd. All rights reserved.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.8
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available