scholarly journals Laboratory and Field‐Based Assessment of the Effects of Sediment Capping Materials on Zinc Flux, Bioavailability, and Toxicity

2019 ◽  
Vol 39 (1) ◽  
pp. 240-249 ◽  
Author(s):  
Eduardo Cimino Cervi ◽  
Kesiree Thiamkeelakul ◽  
Michelle Hudson ◽  
Alison Rentschler ◽  
Sara Nedrich ◽  
...  
Keyword(s):  
Sediment Capping

Does sediment capping have post-application effects on zooplankton and phytoplankton?

Hydrobiologia ◽  
2009 ◽  
Vol 661 (1) ◽  
pp. 55-64 ◽  
Author(s):  
Deniz Özkundakci ◽  
Ian C. Duggan ◽  
David P. Hamilton
Keyword(s):  
Sediment Capping

Influence of the Initial Nitrogen Concentration on Eliminating Nitrogen Load of Europhia Sediment Capping with Active Barrier System (ABS)

2011 ◽  
Vol 374-377 ◽  
pp. 498-503
Author(s):  
Jin Lan Xu ◽  
Lei Wang ◽  
Jun Chen Kang ◽  
Ting Lin Huang ◽  
Yu Hua Dong
Keyword(s):  
Total Nitrogen ◽  
Nitrate Nitrogen ◽  
Nitrogen Concentration ◽  
Ammonia Nitrogen ◽  
Overlying Water ◽  
Sediment Capping ◽  
Time Treatment ◽  
Total Nitrogen Concentration ◽  
Long Time ◽  
Active Barrier

Abstract: Active barrier system (ABS) capping zeolite with large surface area and strong adsorption ability is an effective way to control eutrophication of lake since it can remove ammonia in the lake released by sediment. Influence of the initial nitrogen concentration on eliminating nitrogen load of europhia sediment capping with active barrier system (ABS) were studied through an investigation of the repairment results of serious pollution period (total nitrogen concentration up to 25.33 mg/L), moderate pollution period (14.39 mg/L) and the slight pollution period (3.47 mg/L) of the ancient Canal of Yangzhou. The results showed that: (1) zeolite F1 inhibition effect is stronger than zeolite F2. More TN were removed as the initial TN concentration increased and longer rapid inhibit period were presented with the increased initial TN concentration. (2) The ammonia nitrogen in sediment could be rapidly released into the overlying water, and with lower initial TN concentration in source water, more ammonia would be released from the sediment. Long time treatment was necessary to inhibit the release of ammonia completely if the water showed a high initial TN concentration. (3) After covering zeolite, the total nitrogen in the overlying water were removed mainly through nitrification and denitrification. At the initial TN concentration of 3.47 mg/L, 14.39 mg/L, 25.88 mg/L, 61%, 45% and 52% of TN were removed by the conversion of ammonia to nitrogen gas, however, others left in water as nitrate nitrogen and nitrite residues, and 90% was nitrate nitrogen.

Application of zeolite/hydrous zirconia composite as a novel sediment capping material to immobilize phosphorus

2017 ◽  
Vol 123 ◽  
pp. 1-11 ◽  
Author(s):  
Yi Fan ◽  
Yiwen Li ◽  
Deyi Wu ◽  
Chunjie Li ◽  
Hainan Kong
Keyword(s):  
Hydrous Zirconia ◽  
Sediment Capping

MULTI-LAYER SEDIMENT CAPPING STRUCTURE – A CANADIAN EXPERIENCE

2009 ◽  
Author(s):  
Ioan Nistor ◽  
Marie-Claude Wilson ◽  
Romeo Ciubotariu ◽  
Manuel Vazquez
Keyword(s):  
Sediment Capping ◽  
Canadian Experience

Variations in the concentrations of heavy metals through enforcement of a rest-year system and dredged sediment capping at the Yellow Sea-Byung dumping site, Korea

2017 ◽  
Vol 124 (1) ◽  
pp. 512-520 ◽  
Author(s):  
Chang-Soo Chung ◽  
Ki-Hoon Song ◽  
Ki-Young Choi ◽  
Young-Il Kim ◽  
Hye-Eun Kim ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Yellow Sea ◽  
The Yellow Sea ◽  
Dredged Sediment ◽  
Dumping Site ◽  
Sediment Capping

Influence of Zeolite Dose on Eliminating Nitrogen Load of Europhia Sediment Capping with Active Barrier System (ABS)

2011 ◽  
Vol 374-377 ◽  
pp. 70-75
Author(s):  
Ting Lin Huang ◽  
Jin Lan Xu ◽  
Jun Chen Kang ◽  
Dong Dong Sun
Keyword(s):  
Good Control ◽  
Ammonia Nitrogen ◽  
Nitrite Accumulation ◽  
High Dose ◽  
Overlying Water ◽  
Sediment Capping ◽  
Removal Capacity ◽  
N Release ◽  
Active Barrier ◽  
Principal Pathway

Abstract: This study investigated to eliminate the nitrogen load of sediment from Yangzhou ancient canal capping with an active barrier system (ABS) using two kinds of zeolite with five different coverage densities. For ABS capping with zeolite F1 when the zeolite dose is low (0.21 kg/m2 and 0.62 kg/m2), it is found that ABS failed to achieve good control in preventing N release in the entrophic sediments as total nitrogen (TN) concentrations of overlying water were increased to 3.76 mg/L and 3.13 mg/L, respectively after 16 days. However, when zeolite density was increased to 1.04 kg/m2, TN concentration of overlying water decreased to 1.94 mg/L and TN removal efficiency is up to 50% after 16 days. For ABS capping with zeolite F2 TN concentration of overlying water is reported to descend in both low dose and high dose series. It is found that zeolite F2 is unfit for remediation of sediments from ancient Canal in Yangzhou because the ability in preventing release of ammonia nitrogen from sediments is weak. A possible explanation is that microorganism attaching on surface of two zeoltes differs to cause large difference of removal capacity between zeolite F1 and zeolite F2. It is found that nitrification and denitrification is the principal pathway for the former one while nitrite accumulation appears in the latter. To sum up, the capacity of eliminating TN load by zeolite F1 is stronger than that by zeolite F2, the optimum capping density of zeolite F1 is 1.04 kg/m2.

Fluxes of nutrients and trace metals across the sediment-water interface controlled by sediment-capping agents: bentonite and sand

2016 ◽  
Vol 188 (10) ◽  
Author(s):  
Junho Han ◽  
Hee-Myong Ro ◽  
Kyung Hwa Cho ◽  
Kyoung-Woong Kim
Keyword(s):  
Trace Metals ◽  
Water Interface ◽  
Capping Agents ◽  
Sediment Capping

Sediment capping in eutrophic lakes – efficiency of undisturbed calcite barriers to immobilize phosphorus

2004 ◽  
Vol 19 (11) ◽  
pp. 1759-1771 ◽  
Author(s):  
Ute Berg ◽  
Thomas Neumann ◽  
Dietfried Donnert ◽  
Rolf Nüesch ◽  
Doris Stüben
Keyword(s):  
Eutrophic Lakes ◽  
Sediment Capping
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