Evaluation of the effectiveness of wastewater treatment in meeting the effluent quality standard - a case study in Balongan, IndonesiaEkara Rahmi Susanti, Suprihatin Suprihatin, Lina Karlinasari and Andes IsmayanaBIO Web Conf., 234 (2026) 03002DOI: https://doi.org/10.1051/bioconf/202623403002