This slide presentation outlines a study concerned with the potential impact of wastewater treatment plant (WWTP) effluents on downstream drinking water supplies. In particular, the study focuses on: increased levels of Natural Organic Matter
(NOM);
different character of NOM, i.e.
WWTP NOM becoming Effluent Organic Matter (EfOM); and, the
impact on disinfection byproducts (DBPs), specifically
levels, types, and speciation of DBPs. Topics covered include; analytical techniques for EfOM/NOM characterization; NOM/EfOM Characterization studies including representative results of three wastewater treatment plants on an effluent-impacted river; representative results of DBP formation potential
(FP) levels; and,
NOM and EfOM properties
vs DBPFP levels, specifically
WWTPs and drinking water (DW) supplies (with
varying EfOM impacts) in
multiple watersheds. Summary of conclusions included: WWTP EfOM ¿¿¿¿¿¿¿ NOM in DW supplies since
EfOM is more polar, less humic, higher in N;
differences in DBP precursors included
THMs (humic) vs HAAs (non-humic), and
N-DBPs (e.g., HANs, NDMA) and Br-DBPs
(elevated Br- levels in EfOM);
relevance to algal-impacted DW sources revealed
similarities between AOM and EfOM; and,
EfOM is more biodegradable than NOM which indicates that biological treatment (at the DWTP or
in the environment, River Bank Filtration), should be able to remove a portion of the
EfOM (and precursors for some DBPs). Includes table, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 2.2 MB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 30 |
| Published : | 06/01/2006 |
