scholarly journals Effects of Lanthanum modified bentonite on the water phosphorus concentration and sediment phosphorus form in a shallow eutrophic lake

2019 ◽  
Vol 31 (5) ◽  
pp. 1219-1228
Author(s):  
GAN Lei ◽  
◽  
ZHONG Ping ◽  
SU Ling ◽  
LIU Zhengwen
Keyword(s):  
Eutrophic Lake ◽  
Phosphorus Concentration ◽  
Modified Bentonite ◽  
Sediment Phosphorus ◽  
Phosphorus Form ◽  
Shallow Eutrophic Lake

scholarly journals Effects of Lanthanum Modified Bentonite and Polyaluminium Chloride on the Environmental Variables in the Water and Sediment Phosphorus Form in Lake Yanglan, China

Water ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 1947
Author(s):  
Ling Su ◽  
Chen Zhong ◽  
Lei Gan ◽  
Xiaolin He ◽  
Jinlei Yu ◽  
...  
Keyword(s):  
Suspended Solids ◽  
Soluble Reactive Phosphorus ◽  
Particulate Phosphorus ◽  
Modified Bentonite ◽  
Combined Application ◽  
Water And Sediment ◽  
Phosphorus Form ◽  
Labile P ◽  
Reactive Phosphorus ◽  
Polyaluminium Chloride

The application of lanthanum modified bentonite (Phoslock®) and polyaluminium chloride (PAC) is popular in the restoration of European temperate lakes; however, the effects of the application on the concentrations of phosphorus (P) in both the water and the sediments have been poorly evaluated to date. We studied the effects of the application of Phoslock® + PAC on the concentrations of total phosphorus (TP), particulate phosphorus (PP), soluble reactive phosphorus (SRP), total suspended solids (TSS) and chlorophyll a (Chla) in the water, and different P forms in the sediments, in an isolated part of Lake Yanglan. The results showed that the concentrations of TP, PP, SRP, TSS and Chla decreased significantly after the addition of Phoslock® + PAC. Moreover, the concentrations of labile-P, reductant-soluble-P and organic-P in the sediments were also significantly decreased after the Phoslock® + PAC application. However, the concentrations of both the stable apatite-P and residual-P in the sediments after application of Phoslock® + PAC were much higher than the pre-addition values, while the concentrations of metal-oxide-P did not differ significantly between the pre- and post- application conditions. Our findings imply that the combined application of Phoslock® and PAC can be used in the restoration of subtropical shallow lakes, to reduce the concentrations of P in the water and suppress the release of P from the sediments.

scholarly journals Responses in sediment phosphorus and lanthanum concentrations and composition across 10 lakes following applications of lanthanum modified bentonite

2016 ◽  
Vol 97 ◽  
pp. 101-110 ◽  
Author(s):  
Line Dithmer ◽  
Ulla Gro Nielsen ◽  
Miquel Lürling ◽  
Bryan M. Spears ◽  
Said Yasseri ◽  
...  
Keyword(s):  
Modified Bentonite ◽  
Sediment Phosphorus

Testing aluminum addition as a tool for lake restoration in shallow, eutrophic Lake Sønderby, Denmark

Hydrobiologia ◽  
2003 ◽  
Vol 506-509 (1-3) ◽  
pp. 781-787 ◽  
Author(s):  
Kasper Reitzel ◽  
Jonas Hansen ◽  
Henning S. Jensen ◽  
Frede Ø. Andersen ◽  
Kjeld S. Hansen
Keyword(s):  
Lake Restoration ◽  
Eutrophic Lake ◽  
Aluminum Addition ◽  
Shallow Eutrophic Lake
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