| 摘要 |
<p>A process for dewatering of sludge, wherein said sludge comprises at least secondary sludge or primary sludge comprising mechanical pulping waste, deinking waste or recycled paper waste, comprising the steps of: a) adding polyacrylamide and urea hydrogen peroxide to said sludge, wherein said polyacrylamide is added to said sludge simultaneous with the addition of said urea hydrogen peroxide; and b) adding aluminum sulfate to said sludge; and c) mechanically separating said solids from said water.</p> |
