This study aims to study the efficiency of CO and SO2 gas absorption in motor vehicles emission using activated banana leather bark (Musa acuminate L). The carbon was prepared though consists of a banana skin carbonation process at a temperature at 450 o C for 1.5 hours and activated carbon activation process using H2 SO4 activator at concentrations of 1 Nfor 1, 2 and 3 hours.The motor vehicle emission absorption process uses an adsorption tube which has been loaded activated carbon and connected to the exhaust for 5 minutes. The test of activated carbon characteristics studied were absorption test I2, FTIR test and SEM test. The results showed that iodine absorption was 914 mg / g. The FTIR spectra of activated carbon showed absorption band spectra at wave number 781,17 - 3624,25 cm-1 on vibration of group -OH, with intensity 77,85%. The SEM results show the addition of pore size before and after activation of 1.131 μm and 15.015 μm. The carbon CO gas absorption efficiency is 25% and Gas SO2 is 40%
The aims of the study were to investigate characteristics of activated carbon prepared from banana peels as adsorbent for the removal gasesemission from motorcycles. The effect of differents chemocalactivators and contact time were studied on the characteristics of banana peels raw carbon (RC) and chemically activated carbon (CAC) such as moisture content, ash content, volatile matter. The best ofIodine adsorption capacity of CAC H2SO4 3N 3 hour contact, was obtained at 913,68 mg/g adsorbent. Structure and morphology ofRC and CAC were characterized by Fourier transform infrared (FTIR) and field emission scanning electron microscopy (SEM). The results showed that RC and CAC could significantly adsorbed the CO and SO2gasesemissions from motorcycles, but not applicable for NO, NOx gases. After 10 minutes analysis using gas emission Analyzer, CO gas could be removed, from initial 16014 ppm to 3578 ppm using CAC H2SO4 adsorbent, while SO2 gas could also be partly removed from 217 ppm to 19 ppm using CAC ZnCl2 adsorbent.Banana peels carbon produced was suitable for application in removing CO and SO2gases emissions from motorcycles and it helps to reduce the green house gas effects of fossil fuel usage to the environment.
Purpose-In this research, we have prepared activated carbon (AC) from the waste of banana peels (Musa acuminate L.) using potassium hydroxide (KOH) for carbon monoxide (CO) adsorption from motorcycle gas emission. Design/Methodology/Approach-The activation was conducted using a chemical activator (KOH) at various concentrations of 1, 2, and 3 N for 1, 2, and 3 h, respectively. Characteristics of banana peels AC (BPAC) produced were analyzed using the Fourier-transform infra-red spectroscopy and scanning electron microscopy. Findings-Results showed that KOH concentration and activation time strongly affected the CO adsorption and opening of the AC surface pore. There was an increase in the CO sorption when the KOH concentration was increased up to 3 N concentration. The highest CO adsorption from the emission occurred at 70.95% under KOH concentration of 3 N during the 3-h preparation. Research Limitations/Implications-BPAC has been used as an adsorbent for only CO from motorcycle gas emission but not as an adsorbent for HC, NO, NO x , or H 2 S. Practical Implications-BPAC can be used as the potential adsorbent for the removal of CO from motorcycle gas emission, and it is an environmental friendly, low cost, and easy to make adsorbent. Originality/Value-In this study, the AC is made from biomass and is used in wastewater treatment, but limited studies are found on the removal of CO from motorcycle gas emission.
Ecological technologies such as wetlands constructed for wastewater treatment are innovative solutions for environmental protection and restoration. This study examines a Floating Treatment Wetlands System (FTWs), which is a new treating concept using macrophytes rooted in modified growing aquatic plants with floating systems. An aquatic plant, Actinoscirpus grossus obtained from rice fields in Banda Aceh. FCWs filled with five plants per shoot with five compartments were fed with domestic wastewater with a flow rate of 7 L/hour. Plant height was varied by 90cm - 150cm in Pond 1 and 50cm - 90cm in Pond 2, and Pond 3 was prepared as a control (without plants). Water quality in influent and effluent was analyzed every two weeks with a duration of 18 weeks and nine times sampling. Results showed a decrease in the concentration of nitrate, ammonium, and phosphate in the effluent flow with degradation efficiency (% DE) on average, NO3-N: 76.34%; NH4-N: 97.75%; and PO4
3-: 89.45%; respectively. The degradation of domestic wastewater showed very significant results. The periodic harvest management process becomes an important part of aquatic plants, Actinoscirpus grossus to achieve optimum results in treating waste, i.e., for 112 days with a maximum plant growth height of 165cm and 173cm for both variations of experimental ponds.
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