Removal of Pesticide Residues from Water by Organo-bentonites
نویسندگان
چکیده
Contamination of water resources with pesticides residues becomes a pressing problem in Gaza due to the frequent application of pesticides in the intensive agricultural system. This study tests the potential of using organo-bentonite as a porous material to remove bromoxynil residues from contaminated water. Bentonite surfaces were activated for removal of bromoxynil residues from water by simple ion exchange reaction using Hexadecyl tributyl phosphonium (HDTBP) or N-cetylperidinium (NCP) salts. HPLC results showed that raw bentonite is a poor material for removing bromoxynil residues, whereas NCP-/HDTBP -bentonite are powerful materials for removing bromoxynil residues due to changing bentonite surfaces from hydrophilic to hydrophobic. Reducing the temperature or the pH of the solution further enhanced the removal process. These results suggest that NCP-/HDTBP-Bentonite are promising porous material for removing bromoxynil residues from water. The application of these materials in water filter may be a promising and economically feasible technology for water purification.
منابع مشابه
Application of Nanotechnology in Pesticides Removal from Aqueous Solutions - A review
In recent years, water pollution and pesticide residues in the food chain have become a serious environmental and health hazard problem. Therefore, an efficient technology is essential for complete mineralization of pesticides to non-toxic forms. Nanotechnology offers many potential benefits to improve existing environmental technologies using new materials with effective performance, re...
متن کاملDetermination of Selected Pesticide Residues from Gilgel Gibe (I) Hydroelectric Dam Reservoir and Its Tributaries, Jimma Zone, Ethiopia
In this study, the level of selected organophosphorus and organochlorine pesticide residues from water samples of Gilgle Gibe (I) hydroelectric dam reservoir and its potential tributaries, Jimma zone, Ethiopia, was determined by gas chromatography-electron capture detector (GC-ECD). Low density based dispersive liquid-liquid microextraction (LD-DLLME) using toluene (as extractant) and acetonitr...
متن کاملNitrate Removal from Drinking Water using Organo-Silane Modified Natural Nano-Zeolite
Nitrate-containing compounds are considered as groundwater contaminants, the concentration of whichhas been growing in these resources during recent years. As a result, it seems necessary to use effectivemethods to remove nitrate from water and wastewater. Adsorption is generally considered moreeconomical in water treatment compared to other feasible a...
متن کاملOrganophosphorus and Carbamate Pesticide Residues Detected in Water Samples Collected from Paddy and Vegetable Fields of the Savar and Dhamrai Upazilas in Bangladesh
Several types of organophosphorous and carbamate pesticides have been used extensively by the farmers in Bangladesh during the last few decades. Twenty seven water samples collected from both paddy and vegetable fields in the Savar and Dhamrai Upazilas in Bangladesh were analyzed to determine the occurrence and distribution of organo-phosphorus (chlorpyrifos, malathion and diazinon) and carbama...
متن کاملElectrochemical Oxidation Approach towards the Treatment of Acetamiprid Pesticide from Polluted Water
Introduction: Acetamiprid (AP) is one of the most widely used pesticides in the neonicotinoid class. AP residues in the environment have received considerable due to their potential toxicity to humans. Therefore, it is important to remove AP from the aqueous solution. Materials and Methods: In the current study, response surface methodology (RSM) was used as an efficient approach to optimize t...
متن کامل