Poornima Parvathi, V Improved waste water treatment by bio-synthesized Graphene Sand Composite. [electronic resource] - Journal of environmental management Oct 2015 - 299-305 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 1095-8630 Standard No.: 10.1016/j.jenvman.2015.07.055 doi Subjects--Topical Terms: AdsorptionGraphite--chemistryMicroscopy, Electron, ScanningSilicon Dioxide--chemistrySpectrometry, X-Ray EmissionSpectroscopy, Fourier Transform InfraredWastewater--chemistryWater Purification--methodsX-Ray Diffraction