1 Introduction</h5> Lake eutrophication is an important environment problem that needs to be solved. The main reason for the problem is the excessive phosphorus (P) in lakes, which originated from the external P loading from wastewater discharge via human activity and the internal P loading from lake sediments  . Researchers have mainly focused on the external P loading  . However, the internal P loading is also regarded a key factor causing eutrophication  . Thus, control of the internal P loading from lake sediments seems a vital solution regarding lake restoration. It is noted that different strategies have been used to control the internal P loading, and a chemical treatment that using active material to immobilize P in situ is a promising option  . It has been demonstrated that materials such as Al compounds [5,6] , Fe compounds  , Ca compounds  , and commercial clay  can effectively reduce the internal P loading from lake sediments. However, one of the challenges for using these materials in large scale is their high-cost. A low cost with high P adsorption capability and nonhazardous material is beneficial to the application of the chemical treatment method for
Chemical Engineering Journal – Elsevier
Published: Jun 1, 2013
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