A Study on corrosion inhibition efficiency of bamboo charcoal and its behavior in human urine treatment

Abstract

This research consists of two aims which are to investigate the behavior of bamboo charcoal in human urine treatment and its efficiency in inhibiting corrosion. The analysis of Scanning Electron Microscopy was carried out to analyze the microstructure and macrostructure pores within bamboo charcoal. The images obtained from the analysis showed that bamboo charcoal had large amount of pores and hence had high adsorption capacity. Besides that, analysis of X-ray Fluorescence (XRF) had shown that bamboo charcoal consisted of several minerals. Potassium, calcium, manganese, iron, copper and zinc were found in bamboo charcoal. In order to carry out the urine treatment process, simple filtration apparatus was set up in which bamboo charcoal was the main adsorbent. Human urine samples which were filtrated or infiltrated were then analyzed by spread plate method. The result of spread plate method showed that the amount of bacteria colonies in untreated urine sample had decreased after treatment. Bamboo charcoal had efficiently adsorbed and prevented the growth of bacteria in the urine samples. On the other hand, steel nails and bamboo charcoal were prepared for corrosion process. Electrochemical Impedance Spectroscopy (EIS) was used to analyze the steel nails. The result from EIS showed that the more bamboo charcoal used in the water, the lower the corrosion rate of steel nails. The percentage inhibition efficiency of bamboo charcoal was also calculated. The calculation showed that the more bamboo charcoal was used, the higher the percentage inhibition efficiency. As a summary, this study showed that bamboo charcoal was a good adsorbent in urine treatment and as an efficient corrosion inhibitor.