Biochar-treated rice mill effluent: A sustainable strategy for enhanced reusabilitySonali Paul, Riddhi Chongder, Urmila Sinha, Sahana Ghosh, Srijon Roy, Sanjana Sen, Gurleen Kaur Ubhi and Susmita MukherjeeBIO Web Conf., 228 (2026) 08004DOI: https://doi.org/10.1051/bioconf/202622808004