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The occurrence of heavy metals in our water resources is of continued concern for the health and safety of consuming public. The existing conventional water treatment plants may only partially remove heavy metals, a large fraction of the metals are released to the aquatic environment. Recently, activated sludge emerged as an eco-friendly bioadsorbent, is effective and low cost material option on the...
The extraction of extracellular polymeric substances (EPS) from activated sludge and the absorption properties of chromium (VI) (Cr6+) on EPS were examined in this experiment. The effects of adsorption time, pH, mass of EPS, and initial Cr6+ concentration on Cr6+ removal efficiency were investigated. The results indicated that high speed centrifugation was efficient in the extraction of EPS and caused...
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