Co-treatment of chlorophenol and methanolic wastes

Document Type : Research paper

Authors

MCE – National University of Sciences and Technology, Islamabad, Pakistan.

Abstract

Treatment feasibility of cholorphenol and methanolic waste (CP-M) was examined in an experimental UASB reactor for 40-42 weeks. Permissible organic loading rate (OLR) to achieve 80% TOC was observed to be 6.25g-TOC/L-d with 18mg-CP/L, at a hydraulic retention time (HRT) of 12-48hrs. The overall gas conversation rate observed at greater than 80% TOC removal efficiency was found to be 0.13L/g-CODrem with 60% of methane content. Kinetic coefficients of k, Ks, Y and kd were determined to be 0.70g-TOC/g-VSS.d, 0.30g-TOC/L, 0.26g-VSS/g-TOC and 0.02day-1, respectively. The results of this study suggested that the anaerobic digestion of CP-M is a promising technique.
Treatment feasibility of cholorphenol and methanolic waste (CP-M) was examined in an experimental UASB reactor for 40-42 weeks. Permissible organic loading rate (OLR) to achieve 80% TOC was observed to be 6.25g-TOC/L-d with 18mg-CP/L, at a hydraulic retention time (HRT) of 12-48hrs. The overall gas conversation rate observed at greater than 80% TOC removal efficiency was found to be 0.13L/g-CODrem with 60% of methane content. Kinetic coefficients of k, Ks, Y and kd were determined to be 0.70g-TOC/g-VSS.d, 0.30g-TOC/L, 0.26g-VSS/g-TOC and 0.02day-1, respectively. The results of this study suggested that the anaerobic digestion of CP-M is a promising technique.
Treatment feasibility of cholorphenol and methanolic waste (CP-M) was examined in an experimental UASB reactor for 40-42 weeks. Permissible organic loading rate (OLR) to achieve 80% TOC was observed to be 6.25g-TOC/L-d with 18mg-CP/L, at a hydraulic retention time (HRT) of 12-48hrs. The overall gas conversation rate observed at greater than 80% TOC removal efficiency was found to be 0.13L/g-CODrem with 60% of methane content. Kinetic coefficients of k, Ks, Y and kd were determined to be 0.70g-TOC/g-VSS.d, 0.30g-TOC/L, 0.26g-VSS/g-TOC and 0.02day-1, respectively. The results of this study suggested that the anaerobic digestion of CP-M is a promising technique.

Graphical Abstract

Co-treatment of chlorophenol and methanolic wastes

Highlights

  • The treatability of CP-M wastes in a single-step UASB reactor is quite feasible.
  • The biogas production rate was comparatively less in such cases, but the kinetic coefficient was identical.
  • The anaerobic digestion of CP-M is a useful and promising technique.

Keywords

Main Subjects


Ali, M., Sreekrishnan, T.R., 2001. Aquatic toxicity from pulp and paper mill effluents: a review. Adv. Environ. Res., 5(2), 175-196.
Arshad, A., Hashim, N.H., 2012. Anaerobic digestion of NSSC pulping effluent.Int. J. Environ. Res., 6(3), 761-768.
Arshad, A., Hashim, N.H., Qureashi, I.A., 2011. Anaerobic Digestion of Chlorophenolic Wastes. Int. J. Environ. Res., 5(1), 149-158.
Bajpai, P., 2000. Microbial degradation of pollutants in pulp mill effluent. Adv. Appl. Microbiol., 48, 79-134.
Bhatti, Z.I., Furukawa, K., Fujita, M., 1996. Feasibility of methanolic waste treatment in UASB reactors. Water Res., 30(11), 2559-2568.
Ferguson, J.F., Dalentoft, E., 1991. Investigation of anaerobic removal and degradation of organic chlorine from kraft bleaching wastewaters. Water Sci. Technol., 24(3-4), 241-250.
Hall, E.R., Onysko, K.A., Parker, W.J., 1995. Enhancement of bleached kraft organochlorine removal by coupling membrane filtration and anaerobic treatment. Environ. Technol., 16(2), 115-126.
Henze, M., Harremoës, P., 1983. Anaerobic treatment of wastewater in fixed film reactors–a literature review. Water Sci. Technol., 15(8-9), 1-101.
Kennedy, K.J., Van den Berg, L., 1982. Stability and performance of anaerobic fixed film reactors during hydraulic overloading at 10–35° C. Water Res., 16(9), 1391-1398.
Kallas, J., Munter, R., 1994. Post-treatment of pulp and paper industry wastewaters using oxidation and adsorption processes. Water Sci. Technol., 29(5-6), 259-272.
Lettinga, G., Pol, L.W.H., Weigant, W.M., Dezeeuw, W.J., Rinzema, A., Grin, P.C., Roersma, R.E., Homba, S.W., 1984. High-rate anaerobic waste-water treatment using the UASB reactor under a wide range of temperature conditions. Biotechnol. Genet. Eng. Rev., 2(1), 253-284.
Mahadevaswamy, B.M., Sadashiva, M., Girijamma, A.R., 2004. Performance evaluation of UASB reactor for treatment of paper mill wastewater. J. Environ. Sci., 16(2), 194-198.
ISSN: 10010742
Mtethiwa, A.H., Munyenyembe, A., Jere, W., Nyali, E., 2008. Efficiency of oxidation ponds in wastewater treatment. Int. J. Environ. Res., 2(2), 27-31.
Savant, D.V., Abdul-Rahman, R., Ranade, D.R., 2006. Anaerobic degradation of adsorbable organic halides (AOX) from pulp and paper industry wastewater. Bioresour. Technol., 97(9), 1092-1104.
Scholz-Muramatsu, H., Neumann, A., Meßmer, M., Moore, E., Diekert, G., 1995. Isolation and characterization of Dehalospirillum multivorans gen. nov., sp. nov., a tetrachloroethene-utilizing, strictly anaerobic bacterium. Arch. Microbiol., 163(1), 48-56.
Rajakumar, R., Meenambal, T., 2008. Comparative Study on Start-Up Performance of HUASB and AF Reactors Treating Poultry Slaughterhouse Wastewater. Int. J. Environ. Res., 2(4), 401-410.
Tezel, U., Guven, E., Erguder, T.H., Demirer, G.N., 2001. Sequential (anaerobic/aerobic) biological treatment of Dalaman SEKA Pulp and Paper Industry effluent. Waste Manage., 21(8), 717-724.
Wiegant, W.M., 2001. Experiences and potential of anaerobic wastewater treatment in tropical regions. Water Sci. Technol., 44(8), 107-113.
Yan, G., Allen, D.G., 1994. Biosorption of high molecular weight organochlorines in pulp mill effluent. Water Res., 28(9), 1933-1941.
Yoochatchaval, W., Ohashi, A., Harada, H., Yamaguchi, T., Syutsubo, K., 2008. Characteristics of granular sludge in an EGSB reactor for treating low strength wastewater. Int. J. Environ. Res., 2(4), 16-21.