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Biochar Derived from the Husk and Straw of Rice (Oryza sativa L.) Produced via Low-Temperature Pyrolysis as an Effective Adsorbent for Pb (II) Removal | ||
| Pollution | ||
| دوره 9، شماره 4، دی 2023، صفحه 1666-1675 اصل مقاله (1.89 M) | ||
| نوع مقاله: Original Research Paper | ||
| شناسه دیجیتال (DOI): 10.22059/poll.2023.358321.1888 | ||
| نویسندگان | ||
| Pimprapa Chaijak* 1؛ Panisa Michu2؛ Junjira Thipraksa1؛ Alisa Kongthong3 | ||
| 1Department of Biology, Faculty of Science, Thaksin University 93210, Thailand | ||
| 2Department of Biotechnology, Faculty of Science, Thaksin University 93210, Thailand | ||
| 3Department of Microbiology, Faculty of Science, Thaksin University 93210, Thailand | ||
| چکیده | ||
| Pyrolysis is a promising thermochemical conversion process that transforms biomass into biochar, a carbon-rich solid material, in an oxygen-limited environment. This study focuses on the utilization of rice byproducts, namely rice straw and rice husk as feedstock for biochar production through low-temperature pyrolysis. The aim is to explore the potential of these biochars as cost-effective adsorbents for removing metal contaminants from aqueous solutions, with a particular emphasis on Pb(II) removal. Physicochemical properties of the biochars produced at a low temperature of 300 °C were thoroughly investigated, including surface morphology and their adsorption capacity for Pb(II). Remarkably, the rice straw biochar (RSB) produced at 300 °C exhibited exceptional Pb(II) adsorption capacity, with a value of 390.10±0.30 mg/g, and demonstrated a high Pb(II) removal efficiency of 96.10±0.30% when modified with 30% w/w H2O2. A crucial aspect of this study lies in the evaluation of the cost-effectiveness of the biochar production process, particularly when compared to commercially available adsorbents. By demonstrating the potential of rice byproduct-derived biochar as an efficient Pb(II) biosorbent in aqueous environments, this work not only provides new insights into the preparation of biochar using low-temperature pyrolysis but also offers a viable and economical solution for metal-contaminated water treatment. The findings of this research contribute to the field of sustainable waste utilization and highlight the significant potential of rice byproduct-based biochar as an environmentally friendly adsorbent for heavy metal removal. | ||
| کلیدواژهها | ||
| Biochar؛ Biomass؛ Biosorption؛ Lead removal؛ Rice straw | ||
| مراجع | ||
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