Biosorption of Lead (II)–containing Sasirangan Textile Wastewater using Nanocomposites of Eleocharis dulcis Fibers with Iron (III) Nanoparticles as AdsorbentChairul Irawan, Iryanti F. Nata, Meilana D.Putra and Yuli RistianingsihMATEC Web Conf., 156 (2018) 05011DOI: https://doi.org/10.1051/matecconf/201815605011