Removal of VOCs from groundwater using membrane-assisted solvent extraction
نویسندگان
چکیده
منابع مشابه
Optimization of Ultrasound-assisted Acidic-solvent Extraction of Colchicine from Colchicum kurdicum (Bornm.) Stef. Using Response Surface Methodology
Background and objectives: Colchicum kurdicum (Bornm.) Stef. is a flowering perennial monocotyledon plant that has many important bioactive compounds especially colchicine and colchicine derivatives. In this study, the ultrasound-assisted acidic-solvent extraction method coupled with response-surface method was presented as the successful method for large scale extract...
متن کاملRemoval of VOCs from Contaminated Groundwater and Soils by Pervaporation LEAD AGENCY: Environmental Protection Agency
PROBLEM STATEMENT: Petroleum hydrocarbons, and other volatile organic compounds (VOCs), which are found to contaminate groundwater and soils, are usually treated by pump-and-treat methods, which are very time-consuming, expensive, and not very effective. We are proposing the use of pervaporation for effectively removing these hydrocarbons and VOCs from contaminated soil and groundwater (with or...
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Volatile organic compounds (VOCs) are liquids or solids that contain organic carbon (carbon bonded to carbon, hydrogen, nitrogen, or sulfur, but not carbonate carbon as in CaCO3 nor carbide carbon as in CaC2 or CO2), which vaporize at significant rates. VOCs are probably the second-most widespread and diverse class of emissions after particulates. VOCs are a large family of compounds. Some (e.g...
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Arsenic is a carcinogenic metalloid that is currently regulated in drinking water. The levels of arsenic in finished water in an existing water treatment plant are exceeding the current regulation of 10 μg/L. One of the available technologies for arsenic removal from groundwater is adsorption onto coagulated flocs and in this field, ferric chloride is the most commonly used coagulant for arseni...
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10 11 We demonstrate that electrocoagulation (EC) using iron electrodes can reduce arsenic 12 below 10 µg/L in synthetic Bangladesh groundwater and in real groundwater from 13 Bangladesh and Cambodia while investigating the effect of operating parameters that are 14 often overlooked, such as charge dosage rate. We measure arsenic removal performance 15 over a larger range of current density tha...
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ژورنال
عنوان ژورنال: AIChE Journal
سال: 1994
ISSN: 0001-1541,1547-5905
DOI: 10.1002/aic.690400119