Zhang, et al (2024) Preparation of mesoporous biogas residue biocharBiochar is a carbon-rich material created from biomass decomposition in low-oxygen conditions. It has important applications in environmental remediation, soil improvement, agriculture, carbon sequestration, energy storage, and sustainable materials, promoting efficiency and reducing waste in various contexts while addressing climate change challenges. More via a self-template strategy for efficient removal of ciprofloxacin: Effect of pyrolysisPyrolysis is a thermochemical process that converts waste biomass into bio-char, bio-oil, and pyro-gas. It offers significant advantages in waste valorization, turning low-value materials into economically valuable resources. Its versatility allows for tailored products based on operational conditions, presenting itself as a cost-effective and efficient More temperature. Journal of Environmental Management. https://doi.org/10.1016/j.jenvman.2024.121140

Researchers at the Journal of Environmental Management have developed a novel method to create mesoporous biochar from biogas residue, offering an efficient solution for the removal of the antibiotic ciprofloxacin (CIP) from water. The study explored the impact of pyrolysis temperatures on the properties and performance of biochar derived from food waste anaerobic digestion residue.

The team prepared biochar at varying temperatures (300, 500, 700, and 900°C) and found that the highest temperature (900°C) produced biochar (BRBC900) with the best adsorption capacity for CIP, achieving 70.29 mg/g. This high performance was attributed to the biochar’s enhanced surface area, pore structure, and carbon defects.

A key innovation in this study was the self-template strategy, which utilized minerals like SiO2 inherent in the biogas residue to form the mesoporous structure without additional activators. This method simplifies the production process and reduces chemical use, making it more sustainable.

The adsorption mechanisms for CIP included pore filling, π–π interactions, and hydrogen bonding, demonstrating that the process is spontaneous, exothermic, and increases entropy. The study also highlighted that BRBC900’s adsorption efficacy was well-described by Langmuir isotherm and kinetic models, and it performed effectively at neutral to slightly alkaline pHpH is a measure of how acidic or alkaline a substance is. A pH of 7 is neutral, while lower pH values indicate acidity and higher values indicate alkalinity. Biochars are normally alkaline and can influence soil pH, often increasing it, which can be beneficial More levels.

This research provides a dual benefit: it offers a practical use for biogas residues and presents a promising approach for treating antibiotic-contaminated wastewater. The findings suggest that mesoporous biochar could be a cost-effective, eco-friendly solution for mitigating antibiotic pollution in waterbodies, supporting both environmental sustainability and public health.