Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Keith C. K. Lai"'
Autor:
Keith C. K. Lai, Irene M.C. Lo
Publikováno v:
Environmental Science & Technology. 42:1238-1244
The hexavalent chromium (Cr(VI)) removal capacity of acid-washed zerovalent iron (AW-Fe0) was evaluated under different groundwater geochemistry conditions through column experiments. It was found that each gram of the AW-Fe0 could remove 0.65-1.76 m
Autor:
Irene M.C. Lo, Keith C. K. Lai
Publikováno v:
Journal of Environmental Engineering. 133:859-868
The influence of seepage velocity and groundwater temperature on the dechlorination rates of trichloroethylene (TCE) and tetrachloroethylene (PCE) by zero-valent iron ( Fe0 ) were investigated by running laboratory column tests at seepage velocities
Autor:
A.S.F. Tong, Keith C. K. Lai, Daniel C.W. Tsang, Weihua Zhang, Irene M.C. Lo, Tongzhou Liu, Jess Liu, Jing Hu, Kelvin Tsun Wai Ng
Publikováno v:
Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management. 11:177-183
This study investigated the application of biomass gasification to generate renewable energy, using three different types of agricultural and forestal residues: rice husk, almond shell, and waste wood. The field work was carried out in a full-scale g
Publikováno v:
Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management. 11:132-157
Performance monitoring of applied remediation technologies is an important part of site remediation. It involves periodic measurement of site parameters to evaluate whether the remediation technologies perform as expected or to determine the terminat
Publikováno v:
Water, Air, and Soil Pollution. 184:141-155
Activated carbon was derived from waste wood pallets in Hong Kong via phosphoric acid activation and applied to adsorption of basic dye (methylene blue), acid dyes (acid blue 25 and acid red 151), and reactive dye (reactive red 23). The results showe
Publikováno v:
Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management. 10:245-255
A natural gradient tracer experiment was conducted for a permeable reactive barrier (PRB) installed at the Vapokon site in Denmark to estimate the groundwater velocity inside the zero-valent iron ( Fe0 ) reactive medium and to determine also the long
Publikováno v:
Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management. 10:231-244
A funnel-and-gate permeable reactive barrier (PRB) packed with zero-valent iron ( Fe0 ) was installed in 1999 at the Vapokon site in Denmark for groundwater remediation. To understand the behavior of groundwater flow through the PRB, a natural gradie
Publikováno v:
Journal of Environmental Engineering. 132:199-210
The application of zero-valent iron ( Fe0 ) in the funnel-and-gate permeable reactive barrier (PRB) installed at the Vapokon site, Denmark, was conducted in 1999 to remediate the groundwater contaminated by chlorinated aliphatic hydrocarbons (CAHs).
Publikováno v:
Water Research. 40:595-605
Zero-valent iron (Fe 0 ) was used to remove hexavalent chromium, Cr(VI), in groundwater via a coupled reduction-oxidation reaction. Nine columns were set up under various groundwater geochemistry to investigate the effects of hardness and carbonate o
Publikováno v:
Journal of Environmental Engineering. 131:1598-1606
Eleven columns were set up under various groundwater geochemistry conditions to investigate the competitive effect of trichloroethylene (TCE) on hexavalent chromium [Cr(VI)] removal by zero-valent iron ( Fe0 ) . They were found to be electron competi