Assessment of phosphorus flow of canteen food waste in educational institutions in Bangkok areaSunatthiya Mokjatturas, Sopa Chinwetkitvanich, Withida Patthanaissaranukool, Chongchin Polprasert and Supawadee PolprasertE3S Web Conf., 530 (2024) 04003DOI: https://doi.org/10.1051/e3sconf/202453004003