International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 05 | May 2023
p-ISSN: 2395-0072
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COMPARATIVE STUDY OF ADSORPTION PROPERTIES OF HUMAN HAIR AND ACTIVATED CARBON IN WASTE WATER Varsha k1, P E Mohanan Namboodiri2 1M. Tech Scholar in Environmental Engineering, Department of Civil Engineering, M. Dasan Institute of
Technology, Kozhikode, Kerala, India
2Assistant Professor, Department of Civil Engineering, M. Dasan Institute of Technology, Kozhikode, Kerala, India
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Abstract - An adsorption study in a batch and column was
from automobile service stations. Automobile service stations vary from authorized service centers to small scale service stations, which under taker pair, washing and servicing of vehicles. The speedy growth of car wash service centre has seriously increased the contribution of pollution in to bodies of water. The service station waste water represents one of the heavily contaminated wastes with high impurities. It was due to presence of sand and particles, oil and grease, surfactants, detergent, phosphates and hydrofluoric acid. Therefore, the direct disposal for waste water in to the drainage exacerbates the natural water pollution.
carried out by using human hair and activated carbon as bioadsorbents for the removal of oil and grease from automobile service center waste water. In batch study the adsorbent dosage, contact time, pH and temperature are considered. The batch study shows that 24 grams of human hair can remove 76 % of oil and grease from the waste water in contact time of 60 minutes and 40 grams of activated carbon can remove only 50 % of oil and grease from waste water in contact time of 80 minutes so these values is taken to be the optimum in the batch study. The maximum removal efficiency 81% of oil obtained at pH of 7.5 and 80% at 21 0C temperature with 24 g/l of human hair in 60 minutes time of contact. On the basis of batch the column study was conducted with adsorbent bed depth of 7.5 cm and 10.5 cm respectively and varying the rate of flow as 15 ml/min/cm2 and 10 ml/min/cm2. The combination mixture of human hair and activated carbon at 10.5 cm and rate of flow 10 ml/min/cm2 shows the highest removal efficiency of 74% in column study. After that human hair adsorbent required regeneration. In which hibiscus leaf juice (Thaali) used for regeneration, and obtained about 80% of regeneration of oil content in the saturation point.
Industrial growth has accelerated the emission of various oily waste from the sources such a spectro chemical industries, metallurgical industries, automobiles & domestic sewage. These oily wastes are one of the major pollutant of the aquatic environment. Oil water separation processes using polymeric or inorganic membranes have been proposed as effective & cost competitive alternative to conventional oil removal technologies but in present the commercial use of membrane in waste water treatment is currently limited by their low efficiency as well as high capital & operating cost [1].
Key words: Activated carbon, Adsorbent, Automobile service station, Batch, Human hair, Oil and Grease, Regeneration.
Hair is found to be a good adsorbent for oil. Oil pollution is the emerging threat to the environment. Thus utilization of waste hair in oil removal will leads to reduce the waste accumulated in environment. The main oil pollution threat rising from land based activities is due to service station and workshop wastewater. Two major sources of such oils are auto motive crank case oil and used oil from small garages and workshops. This gives high contribution to the oil pollution mainly technologically backward countries, due to low efficiency of equipments and machines [9].
1.INTRODUCTION Many people get their hair cut daily across the world, large quantities of human hair waste being produced in saloons. The hair waste is disposed of at landfills or incinerated, with negative effects on the environment. Incinerating hair leads to air pollution as hair has high composition of Nitrogen, Sulphur and other inorganic elements Burning of hair leads to the release of Nitrogen in the form of nitrous oxide (N2O), Sulphur in the form sulphur dioxide (SO2), and carbon dioxide (CO2), into the atmosphere.
2. MATERIALS AND METHODOLOGY 2.1 Adsorbent Used
Water scarcity will be a key issue for the sustainable development of a country in future. Now India is facing a water crisis and coming years it is estimated that India's population will be affected adversely by severe water scarcity. Large quantity of water is wasted in service stations during the washing of vehicles. We have to consider the possibilities to recycle or reuse of the waste water generated
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The materials that are required for the adsorption and regeneration process are activated carbon, human hair as well as those used for the filter media has to be collected. The human hair is collected from saloons and activated carbon is purchased online and the hibiscus leafs (regenerant) collected from near by areas of college.
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