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Waste Hemp Fibers (Hfs) Derived Porous Carbons: Preparation, Characterization, And Potential Applications, Manju Gurung
Waste Hemp Fibers (Hfs) Derived Porous Carbons: Preparation, Characterization, And Potential Applications, Manju Gurung
Electronic Thesis and Dissertation Repository
The main objective of the present research was to develop environmentally friendly and cost-effective porous carbon materials of improved properties from waste hemp fibers. Two different types/categories of porous carbons were prepared from hemp fibers. In one type, porous carbon materials were developed by a simple one-step method of carbonization and activation. The other type of carbon materials developed in this study were nitrogen-containing activated carbons, which were developed by introduction of nitrogen-containing functional groups on the surface of hemp fibers followed by activation and carbonization. The pore structure/distribution and surface chemistry of the prepared carbons were investigated through the …
Removal Of Fluoride From Mine Water Via Adsorption For Land-Applied Soil Amendment, Ethan Phan, Adrian Damian, Kevin Le, Mary Johnson, Courtney Golman, Michelle Dopp, Jacqueline Payne
Removal Of Fluoride From Mine Water Via Adsorption For Land-Applied Soil Amendment, Ethan Phan, Adrian Damian, Kevin Le, Mary Johnson, Courtney Golman, Michelle Dopp, Jacqueline Payne
Chemical Engineering Undergraduate Honors Theses
The process of mining minerals and elements from ores and rocks creates acid rock drainage (ARD). This drainage is water that contains heavy metals and minerals that can be dangerous for human consumption or damaging to the environment. The mining industry has employed various water treatment methods to prevent these metals and minerals from being discharged into water sources such as ponds, lakes, and streams. Currently, the most used treatment process in the mining industry is a cost-effective high-density sludge (HDS) process. This method reduces the concentration of metals and elements with the use of lime/limestone. However, the concentration of …