Download or read book Extraction of humic acid from sediment obtained from Eniong River, Nigeria written by Ofonime Udo and published by GRIN Verlag. This book was released on 2015-04-17 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master's Thesis from the year 2015 in the subject Environmental Sciences, , language: English, abstract: The green chemistry method was used to extract humic acid from sediments obtained from Eniong River, Nigeria). The percentage yield of 0.2, 0.41 and 0.63 were obtained for 0.1, 0.5 and 1.0M NaOH respectively. The prepared humic acid (HA) was characterized using Ultraviolet-visible spectroscopy, Fourier transformed infrared spectroscopy (FTIR) and as well an investigating its surface properties. The spectrum confirmed the presence of surface functional group including -OH, -CO, -COOH. The UV spectrum was featureless typical of humic acids. The surface properties investigation showed that the extracted humic acid (EHA) was a mesoporous adsorbent with pore size between 2-50nm.