O RGANIC pollutant substances have direct effect on humans and animals. Wastewater containing organic pollutant like phenol compound can contaminate ground water resource and thus lead to a serious ground water problem. This study presents the adsorption technique of (MWCNt) which is used as adsorbents for the removal of phenol compounds from synthetic contaminated water. Many parameters are studied like pH, agitation speed, contact time and adsorbent concentration to determine their influence on the removal of phenol and on adsorption rate.The concentration of phenol in water before and after treatment was determined (analyzed) using high performance liquid chromatography technique (HPLC).The kinetic studies for adsorption followed the pseudo-second order model. The adsorption isotherm fits with Langmuir isotherm. The optimum conditions using MWCNTs were contact time 120 min, pH 7, agitation speed 130 rpm and dose of adsorbent 0.3g. The removal percentage was 85.54%.
DISPERSANTS, usually blended with several surfactants and a solvent, are used to enhance oil spill dispersion as small droplets in water column. Although there is growing acceptance of dispersants as a counter measure to marine oil spill around the world, the two major issues with the dispersants are their toxicity to marine life and dispersion effectiveness (DE) for crude oil. To develop more efficient and less toxic dispersants, three dispersants of hexaglycerol esters (hexaglycerol laurate, hexaglycerol myristate and hexaglycerol palmitate) non-ionic surfactants were prepared. Salinity at different temperatures of the three dispersants was investigated. They had high (DE) for studied crude oil. Emulsion stability was also examined and it was found that all the prepared surfactants were able to form stable emulsions and their stability was very high, extending for months.
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