Aerobic Treatment Case Study
Aerobic Treatment
In the biological process, if the micro organisms (aerobes) use free or dissolved oxygen for the degradation of organic wastes, it is named as aerobic treatment. The availability of the oxygen for the working of aerobes as an electron acceptor accelerates the biodegradation significantly and maximized the treatment system capacity.
Factors influence on treatment process
The microorganisms and their growth are the driving force for the degradation process. To achieve a high rate oxidation of organic pollutants, the suitable environment is to be provided that allows them to thrive. The selection, biochemical oxidation rate, survival and growth of micro organisms are influenced by the following factors.
i. Temperature ii. Initial …show more content…
The concentration gradient between the atmosphere and the bulk liquid is the driving force of oxygen transfer. If there is a difference in the equilibrium concentration in the two phases, this gradient is generated. The transfer of atmospheric oxygen into the water is a result of the desire to obtain equilibrium drives. The temperature, barometric pressure, salinity, and the concentration of water impurities influences on the saturated concentration of dissolved oxygen. ATU is to be designed, to maximize the contact interface (surface area) between the gas and liquid phases, in order to escalate the opportunity for oxygen transfer. Design should maximize the concentration gradient between the gas-liquid interface is high and therefore, the rate of transfer will be high (Converse, …show more content…
John, R. B and Seabloom, R.W. “Aerobic Treatment of Wastewater and Aerobic Treatment Units,” University Curriculum Development for Decentralized Wastewater Management, onsite.tennessee.edu/.
3. Crites, R. and Tchobanoglous, G. (1998). “Small and Decentralized Wastewater Management,” McGraw-Hill, Boston.
4. Benefield, L. D. and Randall, C. W. (1985). “Biological Process Design for Waste Water Treatment,” Ibis Publishing, Charlottesville, Virginia.
5. Kapil Kumar, Gaurav Kumar Singh , Dastidar, M.G. and Sreekrishnan, T.R. (2014). Effect of mixed liquor volatile suspended solids (MLVSS) and hydraulic retention time (HRT) on the performance of activated sludge process during the bio treatment of real textile wastewater, “Water resources and industry ,” Vol V, pp. 1-8.
6. Lourenc, N.D., Franca, R.D.G., Moreira, M.A., Gil, F.N., Viegas, C.A. and Pinheiro, H.M. (2015). Comparing aerobic granular sludge and flocculent sequencing batch reactor technologies for textile wastewater treatment, “Biochemical Engineering journal,” http://dx.doi.org/10.1016/j.bej.2015.04.025.
7. Mullai, P. and Vishali, S. (2010). Application of Trametes versicolor in the biodegradation of textile wastewater, “International Journal of Chemical Sciences,” Vol VIII (V), pp. S224-S232. ISSN
In the biological process, if the micro organisms (aerobes) use free or dissolved oxygen for the degradation of organic wastes, it is named as aerobic treatment. The availability of the oxygen for the working of aerobes as an electron acceptor accelerates the biodegradation significantly and maximized the treatment system capacity.
Factors influence on treatment process
The microorganisms and their growth are the driving force for the degradation process. To achieve a high rate oxidation of organic pollutants, the suitable environment is to be provided that allows them to thrive. The selection, biochemical oxidation rate, survival and growth of micro organisms are influenced by the following factors.
i. Temperature ii. Initial …show more content…
The concentration gradient between the atmosphere and the bulk liquid is the driving force of oxygen transfer. If there is a difference in the equilibrium concentration in the two phases, this gradient is generated. The transfer of atmospheric oxygen into the water is a result of the desire to obtain equilibrium drives. The temperature, barometric pressure, salinity, and the concentration of water impurities influences on the saturated concentration of dissolved oxygen. ATU is to be designed, to maximize the contact interface (surface area) between the gas and liquid phases, in order to escalate the opportunity for oxygen transfer. Design should maximize the concentration gradient between the gas-liquid interface is high and therefore, the rate of transfer will be high (Converse, …show more content…
John, R. B and Seabloom, R.W. “Aerobic Treatment of Wastewater and Aerobic Treatment Units,” University Curriculum Development for Decentralized Wastewater Management, onsite.tennessee.edu/.
3. Crites, R. and Tchobanoglous, G. (1998). “Small and Decentralized Wastewater Management,” McGraw-Hill, Boston.
4. Benefield, L. D. and Randall, C. W. (1985). “Biological Process Design for Waste Water Treatment,” Ibis Publishing, Charlottesville, Virginia.
5. Kapil Kumar, Gaurav Kumar Singh , Dastidar, M.G. and Sreekrishnan, T.R. (2014). Effect of mixed liquor volatile suspended solids (MLVSS) and hydraulic retention time (HRT) on the performance of activated sludge process during the bio treatment of real textile wastewater, “Water resources and industry ,” Vol V, pp. 1-8.
6. Lourenc, N.D., Franca, R.D.G., Moreira, M.A., Gil, F.N., Viegas, C.A. and Pinheiro, H.M. (2015). Comparing aerobic granular sludge and flocculent sequencing batch reactor technologies for textile wastewater treatment, “Biochemical Engineering journal,” http://dx.doi.org/10.1016/j.bej.2015.04.025.
7. Mullai, P. and Vishali, S. (2010). Application of Trametes versicolor in the biodegradation of textile wastewater, “International Journal of Chemical Sciences,” Vol VIII (V), pp. S224-S232. ISSN