Use of drinking water treatment residuals to control the internal phosphorus loading from lake sediments: Laboratory scale investigation

Use of drinking water treatment residuals to control the internal phosphorus loading from lake... 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 [1] . Researchers have mainly focused on the external P loading [2] . However, the internal P loading is also regarded a key factor causing eutrophication [3] . 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 [4] . It has been demonstrated that materials such as Al compounds [5,6] , Fe compounds [5] , Ca compounds [7] , and commercial clay [4] 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 http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Chemical Engineering Journal Elsevier

Use of drinking water treatment residuals to control the internal phosphorus loading from lake sediments: Laboratory scale investigation

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Publisher
Elsevier
Copyright
Copyright © 2013 Elsevier Ltd
ISSN
1385-8947
eISSN
1873-3212
D.O.I.
10.1016/j.cej.2013.03.074
Publisher site
See Article on Publisher Site

Abstract

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 [1] . Researchers have mainly focused on the external P loading [2] . However, the internal P loading is also regarded a key factor causing eutrophication [3] . 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 [4] . It has been demonstrated that materials such as Al compounds [5,6] , Fe compounds [5] , Ca compounds [7] , and commercial clay [4] 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

Journal

Chemical Engineering JournalElsevier

Published: Jun 1, 2013

References

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