Effects of Waste-to-Resource Biochar from Ground Corn Stover on Nitrate Removal from Water
Publication: World Environmental and Water Resources Congress 2024
ABSTRACT
The cost-effective removal of nitrate from water is an important task in environmental engineering. According to earlier research, a variety of inexpensive waste-to-resource materials were utilized for nitrate reduction from aqueous solutions. In our study, the effect of ground corn stover biochar (GCSB) on nitrate removal from water was investigated. The porous graphite-like structure of GCSB offers the potential for nutrient reduction through adsorption from water. The collected ground corn stover (GCS) was heated at 350oC and 550oC for conversion into GCSB. Then the prepared GCSB was used for the nitrate reduction from water. The tests were conducted with various operational parameters and conditions, including GCSB dosages (0.15, 0.3, 0.45, and 0.6 g), reaction time (15, 30, 45, 60, and 75 min), and initial pH condition (3, 5.7, 6.4, 11, and 12.5). It was observed that the nitrate removal percentage increased with the dosages and reaction time increment for GCSB prepared at 350oC. The GCSB prepared at 550oC showed highest removal of 18.6% with 0.3 g dosages and decreased after that. For different reaction times and initial pH conditions, the peak removal percentage was noticed at 60 min and pH 11 for GCSB prepared at 550oC. The GCSB prepared at 350oC showed better adsorption capacity than the GCSB prepared at 550oC. Findings from this study benefit exploring new waste-to-resource material for cost-effective removal of nitrate from water.
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Information & Authors
Information
Published In
World Environmental and Water Resources Congress 2024
Pages: 297 - 304
History
Published online: May 16, 2024
ASCE Technical Topics:
- Adsorption
- Agriculture
- Ashes
- Business management
- Chemical compounds
- Chemical processes
- Chemical properties
- Chemicals
- Chemistry
- Crops
- Engineering materials (by type)
- Environmental engineering
- Financial management
- Irrigation engineering
- Materials engineering
- Nitrates
- pH
- Practice and Profession
- Salts
- Sorption
- Waste management
- Water and water resources
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