FLIP
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Health Concerns<br />
If it is not properly cleaned, water<br />
can carry disease. Since we live,<br />
work and play so close to water,<br />
harmful bacteria have to be<br />
removed to make water safe.<br />
USES OF SLUDGE<br />
Sludge is a semi-solid slurry and<br />
can be produced as sewage sludge<br />
from wastewater treatment<br />
processes The term is also<br />
sometimes used as a generic term
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