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  <title>WEF Discussion Forums : Biosolids and Residuals : pumping dewatwred alum sludge</title>
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  <description><![CDATA[<root><p>Hi all</p>
<p>we have filtered backwash sludge that is dewatered by centrifuge with the addition of polyelectrolyte. Sludge is expected to be 10-20% solids so we want to use progressive cavity pumps to send it to the containers.</p>
<p>Does anybody have any experience of pumping such sludge ? It is highly gelatinous and we are affraid of blockage</p>
<p>Regards</p>
<p>Doctor Sewage</p></root>
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  <pubDate>Mon, 02 Aug 2010 08:51:25 GMT</pubDate>
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