نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه علوم و مهندسی خاک، دانشکده کشاورزی، دانشگاه کشاورزی و منابع طبیعی خوزستان، ملاثانی، ایران
2 گروه زیست‌شناسی، دانشکده علوم، دانشگاه شهید چمران اهواز، اهواز، ایران
3 دانشیار گروه علوم خاک، دانشکده کشاورزی، دانشگاه علوم کشاورزی و منابع طبیعی خوزستان، اهواز ایران
4 دانشیار گروه علوم و مهندسی خاک، دانشکده کشاورزی، دانشگاه علوم کشاورزی و منابع طبیعی خوزستان، ملاثانی، ایران
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
The use of biochar as a porous material rich in carbon has been noticed in agriculture and environment. If it is economical, the properties of biochar can be improved by using physical and chemical modification methods. This study was conducted with the aim of studying and investigating the effect of modification of sugarcane bagasse and date palm biochars with hydrogen peroxide on some of their physical and chemical properties. The obtained results showed that modification of biochar with hydrogen peroxide improves the quality of biochars. Biochar modification causes an increase in cation exchange capacity, water holding capacity, functional groups (with oxygen), percentage of moisture, percentage of oxygen, percentage of hydrogen, reduction of total concentration of nutrients, percentage of nitrogen, percentage of sulfur, percentage of ash, EC, pH, Carbon stability percentage (fixed carbon), specific surface area, volatile matter and carbon percentage and the increase of atomic ratios were investigated (oxygen to carbon, nitrogen to carbon in date palm biochar treatment and hydrogen to carbon). The specific level of the unmodified sugarcane bagasse biochar was the highest and the lowest value belonged to the modified date palm biochar. Scanning electron microscope images (the modified sugarcane bagasse also showed better quality in terms of pores and porosity than the other investigated biochars) showed the best characteristics (amorphous structure and higher porosity) in the modified sugarcane bagasse biochar treatment. The highest improvement of the parameters was related to the modified sugarcane bagasse biochar treatment, which is suggested as the best treatment (product). Based on the obtained results it can be concluded that the modification of biochar with hydrogen peroxide can improve the quality of biochar and have a better effect on the existing processes in the environment and agriculture as well as the soil and the issue of environmental pollution management.
کلیدواژه‌ها [English]
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