scholarly journals Development, characterization and mechanisms study of protonated sawdust biochar-chitosan composite bead biosorbent for defluoridation of contaminated groundwater

2022 ◽  
pp. 100946
Author(s):  
Nadu Kankanamge Lahiru Chathushan Rupasinghe ◽  
Senanayake Mudiyanselage Aroshi Erandika Senanayake ◽  
K.G.N. Nanayakkara
Keyword(s):  
Contaminated Groundwater ◽  
Composite Bead ◽  
Chitosan Composite

Preparation of a Novel Based on a Collagen-Chitosan Composite and Ibuprofen in Supercritical Medium

2018 ◽  
Vol 482 (2) ◽  
pp. 172-176
Author(s):  
E. Said-Galiyev ◽  
◽  
M. Rubina ◽  
A. Naumkin ◽  
N. Ikonnikov ◽  
...  
Keyword(s):  
Chitosan Composite

On-site and in situ bioremediation of wood-preservative contaminated groundwater

2000 ◽  
Vol 42 (5-6) ◽  
pp. 371-376 ◽  
Author(s):  
J.A. Puhakka ◽  
K.T. Järvinen ◽  
J.H. Langwaldt ◽  
E.S. Melin ◽  
M.K. Männistö ◽  
...  
Keyword(s):  
Iron Oxidation ◽  
Wood Preservative ◽  
Pilot Scale ◽  
High Rate ◽  
Contaminated Groundwater ◽  
Groundwater Temperature ◽  
In Situ Bioremediation ◽  
Contaminated Aquifer ◽  
Fluidized Bed Process

This paper reviews ten years of research on on-site and in situ bioremediation of chlorophenol contaminated groundwater. Laboratory experiments on the development of a high-rate, fluidized-bed process resulted in a full-scale, pump-and-treat application which has operated for several years. The system operates at ambient groundwater temperature of 7 to 9°C at 2.7 d hydraulic retention time and chlorophenol removal efficiencies of 98.5 to 99.9%. The microbial ecology studies of the contaminated aquifer revealed a diverse chlorophenol-degrading community. In situ biodegradation of chlorophenols is controlled by oxygen availability, only. Laboratory and pilot-scale experiments showed the potential for in situ aquifer bioremediation with iron oxidation and precipitation as a potential problem.

BIOREMEDIATION OF ARSENIC CONTAMINATED GROUNDWATER IN A NATURAL SITE IN MACON COUNTY, ALABAMA

2019 ◽  
Author(s):  
Md Mahfujur Rahman ◽  
◽  
Ashraf Uddin ◽  
Ming-Kuo Lee
Keyword(s):  
Contaminated Groundwater ◽  
Natural Site

Using a simple method to prepare UiO‐66‐NH 2 /chitosan composite membranes for oil–water separation

2021 ◽  
pp. 50765
Author(s):  
Ximei Zhu ◽  
Zongxue Yu ◽  
Haojie Zeng ◽  
Xiaofang Feng ◽  
Yuchuan Liu ◽  
...  
Keyword(s):  
Composite Membranes ◽  
Simple Method ◽  
Water Separation ◽  
Oil Water Separation ◽  
Oil Water ◽  
Chitosan Composite
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