Spectroscopic and Microscopic Analysis of Humic Acid Isolated from Stabilized Leachate HSs Fractionation

Refractory humic substances (HSs), which include and fulvic acid as well hydrophilic portion, are the prime pollutants of stabilized landfill leachate with a concentrated color chemical oxygen demand (COD). Spectroscopic microscopic analysis remaining in pollutant contributor were conducted this study. Microfiltration centrifugation processes applied to fractionate from HSs leachate. The three-stage isolation process recovered maximum 1412 ± 2.5 mg/L (Pulau Burung leachate), 1510 1.5 (Alor Pongsu leachate) at pH 1371 (PBLS), 1451 (APLS) (about 42% total COD concentration) 2.5, eventually indicates efficiency process. spectroscopic isolated through scanning electron microscopy (SEM), energy-dispersive X-ray (EDX), photoelectron spectroscopy (XPS), Fourier transform infrared (FTIR) significantly existence identical elements acid. subsequent reduction (around 37%, 36%, 39%) ultra-violet absorbance values (UV254, UV280), COD, acid’s significant contribution toxic aromaticity conjugated double-bond compounds.