This powerpoint presentation begins by providing a brief overview of green construction and bacterial growth. The University of North Carolina (UNC) Problem Identification in
New Construction includes:
taste and odor complaints after occupancy
of two buildings; first draw samples had undetectable
disinfectant levels; and,
testing to evaluate disinfectant issue. Suspected factors contributing
to chloramine loss included:
excess residence time; high water temperatures (18-30ºC); and, new copper pipe. Remediation efforts included:
increased water turnover to raise
chloramine residual on a case-by-case basis; automated flushing system (accounts for < 1%
of total water use); and,
replaced water fountains with integral
chiller units to reduce water temperature. Presentation conclusions indicate the following:
construction practices that incorporate water
conservation in plumbing can cause aesthetic
problems if design is not changed to control
residence time;
rapid chloramine decay in new plumbing and
warmer temperatures can cause high bacterial
growth; and,
more research is needed on effects of materials and on
plumbing design and re-growth to avoid problems. Includes figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 2.2 MB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 26 |
| Published : | 11/01/2008 |
