This powerpoint presentation begins by providing a brief overview of West Basin Municipal Water District (WBMWD). The executive summary states that previous work at WBMWD showed
that chloraminating seawater made
a "free" residual that oxidized the reverse osmosis
(RO) membranes. This work
confirmed that both the amperometric
and DPD methods for chlorine report
a "free" residual when conventional
chloramination methods are applied in
seawater, and this work
confirmed that the residual present is
monobromamine. This work also showed that when pre-formed
chloramines are added to seawater, no
bromamine is formed and neither the
amperometric or DPD methods report
a "free" residual. With the support of the WateReuse
Foundation, WBMWD is now doing pilot
studies to further examine the idea. Study hypothesis states that
preformed chloramines can be used, and the
absence of "free" chlorine can be tentative
evidence that monobromamine is absent. Project tasks included: manufacturing chloramines;
selecting residual measurement
method and characterizing its response; and,
confirming that "free chlorine" is not formed. Includes figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 2.4 MB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 59 |
| Published : | 11/01/2009 |
