Study on Bamboo Sawdust Structure Breakage on Manganese Leaching Application

Abstract

The purpose of this work is to study Bamboo Sawdust (BSD) structure breakage to assess its use as potential reducing agent in manganese leaching application. The determination of holocellulose, cellulose and hemicellulose was carried out using BSD reaction towards acetic acid and sodium chlorite (NaClO2). Afterwards, the residue reacted with acetic and nitric acid. Result shows BSD contents 28.60% hemicellulose, 84.71% holocellulose and 56.11% cellulose. During the holocellulose analysis formation of pores was observed. This indicated degradation of holocellulose into reducing sugars. Meanwhile, cellulose analysis caused BSD bundles isolated into individual component. The treatment generates degradation of cellulose into reducing sugars. In addition, the suitability of BSD as a reducing agent is also investigated. In this part, raw BSD undergone leaching reaction and the residue structure was determined using Field Emission Scanning Electron Microscope (FESEM). Two type of manganese (Mn) ores were analysed which were Low Grade Manganese Ore (LGMO) and Synthetic Manganese Ore (SMO). As a result, leaching with manganese ores in sulphuric acid solution develop pores on BSD structure illustrate degradation of BSD into reducing sugars. In addition, the recovery reveals Mn was extracted up to 70% for LGMO and 95% for SMO within 120 minutes of reaction Accordingly, BSD capable released cellulose as reducing agent hence suggests BSD is suitable reducing agent to extract manganese ore.