Development of a sorbent based on chitosan and vermiculite for purification of textile wastewaterGulnora Ikhtiyarova, Nailya Valeeva, Munira Aripdzhanova, Mukhabbat Ayupova and Gulnoza UsmanovaE3S Web Conf., 434 (2023) 02033DOI: https://doi.org/10.1051/e3sconf/202343402033