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Purpose
BDS 6650 is a unique, easy to handle
liquid designed to provide broad spectrum control of bacteria, fungi, algae and
yeasts that cause slime formation in recirculating water systems.
Laboratory and field tests show BDS 6650 to be very effective in
controlling the typical bacteria and fungi, but also offers compatibility with
most of process chemicals and equipment, and convenient handling properties.
 Advantages
 | Fast kill minimizes quality problems |
BDS 6650 provides exceptionally fast
microbial kill rates, faster than virtually any other slimicide.
When the first signs of microbial contamination (pinholes, fisheyes) appear
in finished paper BDS 6650 can be added to the pulpstock to arrest a
minor contamination problem before it becomes more serious.
| Works at exceptionally low concentrations |
In addition to quick action, BDS 6650 gives effective action at very
low concentrations. In laboratory tests, based on ASTM E 600-77 (Efficacy of
Slimicides for the Pape r
Industry / Bacterial), at all three pH levels tested BDS 6650 yielded
99.999% kill of the test organism at only a fraction of the concentration of
competing slimicides.
| BDS 6650 minimize environmental concerns |
Perhaps most important, BDS 6650 offers an
unsurpassed increasingly strict environmental
regulations governing their industry.
To begin with, BDS 6650 is used in low concentrations. And unlike
other mill slimicides, they exhibit fast degradation to carbon dioxide, ammonia,
and
bromide ion, all of which are considered innocuous in the environment at the low
levels encountered.
| Meets FDA requirements |
BDS 6650 meets the requirements of the
Food and Drug Administration (FDA) for use as a slimicide in the manufacture of
paper and paperboard intended to contact food when
used at a maximum level of 0.1 lb 2,2-dibromo-3-nitrilopropionamide (active
ingredient of BDS 6650) /ton of dry paper.
Application
| Recommended method of addition |
 You
can feed BDS 6650 with a metering pump at any point where uniform mixing
can be attained. Use corrosion resistant equipment.
Typical addition points are the beaters, jordan inlet or discharge, broke
chests, furnish chests, save-alls, and/or white-water tanks.
In addition, BDS 6650 can be added prior to contaminated areas in the
system.
BDS 6650 can be added continuously or periodically, with adjustments
in the intervals between additions and dose levels dependent on visual
inspections, microbiological analyses, and/or experienced observations of a
water treatment representative.
| Treatment levels |
For the control of bacterial, fungal, and yeast growth in pulp, paper, and
paper board
mills, add BDS 6650 at the rates of 20 to 100 ppm, once to twice a week.
Safety
Avoid breathing vapours.
Wear suitable protective gloves and safety goggles. In case of contact
immediately flush with water. After eye contact seek medical advice.
Small spills can be flushed with water. Large spills should be collected for
disposal.
Read carefully the Material Safety Data Sheet (MSDS) before use.
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