جستجوی مقالات مرتبط با کلیدواژه « refining » در نشریات گروه « آب و خاک »

Nowadays, the problem of water and soil resources pollution is major and influential issue for the healthy living of humans and living things. Nitrate is one of the decentralized sources of environmental pollution in wastewater or agricultural drainage that caused by excessive use of fertilizer. The infiltration and leakage of these waters into surface water and groundwater sources cause to contaminating these waters with nitrate. Nitrate moves easily into the soil profile due to its negative charge and lack of adsorption on the soil surface that cause to contamination on surface and groundwater. Different physical and chemical methods are commonly used to nitrate adsorption from various municipal, industrial and agricultural wastewaters, which are complex and costly on industrial scales. In this research, various methods of nitrate adsorption have been studied and the main focus of the study is on the process of surface adsorption by cheap biochar as an effective process and a suitable method in the final refining of nitrate-contaminated waters.