Sequential Anaerobic/Aerobic Treatment of Pharmaceutical Wastewater
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The continuous sequential biological anaerobic/aerobic treatment of Samarra Drugs Factory wastewater (pharmaceutical wastewater) was evaluated under different operation conditions of hydraulic retention time (HRT). A pilot plant of upflow anaerobic filter (UAF) was used for anaerobic stage followed by air diffuser for aerobic stage. The UAF was fabricated from polyvinyl chloride (PVC) pipe with 14 cm diameter and 140 cm height. The UAF was packed with (2.54-3.82) cm inert gravel as a media .Three ports along the UAF were fixed at distance of (30cm) to evaluate the reactor efficiency with respect to the depth. The system was operated for (135days) continuously .Seeding and acclimation of anaerobic bacteria for start- up of UAF was achieved within (34days) by using glucose and trace nutrient with gradually replacing pharmaceutical wastewater, then the system was operated completely with pharmaceutical wastewater for three runs with three values of HRT, each run was 30 days. The values of HRT were (24 hrs, 18hrs, and 12hrs) for anaerobic stage and (20 hrs, 15hrs, and 10hrs) for aerobic stage respectively. The UAF was operated with mesophilic bacterial growth, in which the temperature maintained with the range of 35-37 oC. The removal efficiency for chemical oxygen demand (COD), biochemical oxygen demand (BOD) Nitrate (NO3), Phosphate (PO4), Sulphate (SO4), Total suspended solids (TSS) by anaerobic filter were evaluated, while only the removal efficiency for COD and BOD were evaluated with the sequential anaerobic/aerobic treatment. The system was subjected to pharmaceutical wastewater with COD concentration ranged (740-1100 mg/L) and BOD concentration ranged (298- 400 mg/L). The removal efficiency of COD and BOD were 87%, 90% for anaerobic stage and 92%, 93% for anaerobic/aerobic stage respectively. The biogas production was (0.55 m3/Kg COD removed). The efficiency of anaerobic filter with respect to the depth showed that the first third was the more effective in COD removal.
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References
APHA, AWWA, WPCF 1985 (Standard Method for examination of water and wastewater) 14th Ed. (APHA Washington; D.C 1985).
Backman, R.C., Fredric C.B., and Oshanghnessy J.C.1985 (The Treatment of dairy wastewater by the anaerobic Upflow packed bad reactor) Proceeding of 40th Industrial waste conference Prudue University. PP .660-288.
Buitron, G., Melgoza, R.M., and Jimenez, L. 2003 (sequencing batch reactors pharmaceutical wastewater treatment using anaerobic/aerobic sequencing biofilter) Journal of Environmental science health Vol.38. DOI: https://doi.org/10.1081/ESE-120023334
Chen, Y.F., Ng J.W., andYap. M.G.S 1994 (performance of Upflow anaerobic biofilter process in pharmaceutical wastewater treatment). Journal of Res. Cons. and res. PP.83-91. DOI: https://doi.org/10.1016/0921-3449(94)90080-9
Choi E., and Rim J.M 1991 (competition and inhibition of sulphate reducers and methane producer in anaerobic treatment). Journal of water science and tech. Vol.23 PP.1259-1264. DOI: https://doi.org/10.2166/wst.1991.0577
Choi. E., Burkhed, C.E 1984 (Anaerobic Treatment of dairy waste using fixed film and without – Media reactors) proceeding of 39th industrial waste conference Purdue University.
Chung. A.P.Y., and Stanstrom, M.K 1982 (Anaerobic treatment of low strength wastewater) a final report. Water Res. Program University of California.
Correa, S.B., Ruiz E., and Remero F., 2003 (Evolution of Operation parameters in UASB wastewater plant). Journal of water SA. Vol. 29, No.3. Http// www.wre.org.za. DOI: https://doi.org/10.4314/wsa.v29i3.4937
EL-Bayoumy,M., Bewtre J.K., Hamdy I.Ali., and Biswas, N 1999 (Removal of heavy metals and COD by SRB in UAFF Reactor). Journal of ASCE E.E Vol.125 No.6, PP.532-539. DOI: https://doi.org/10.1061/(ASCE)0733-9372(1999)125:6(532)
Hamdy, A.A., Joshi S.G. and Gupta, S.K. 1992 (Effect of organic load and Reactor Height on the performance of anaerobic Mesophilic and Thermophilic fixed film reactor in treatment of pharmaceutical wastewater) Journal of Environmental Technology Vol.13 pp.1161-1168. DOI: https://doi.org/10.1080/09593339209385255
Ince, B.K., Selcuk, A., and Ince, O. 2002 (Effect of chemical synthesis-based pharmaceutical wastewater on performance acetoclastic methanogenic activity and microbial population in upflow anaerobic filter). Journal of Chemical Tech. and Biotechnology 77:711-719 (online 2002). DOI: https://doi.org/10.1002/jctb.629
Jennett, C.J., and Dennis, N.D. 1975 (Anaerobic filter treatment of pharmaceutical waste). Journal of water pollution control federation Vol.47. Pp.104- 121.
Khan,. A W.and Trottier, T.M. 1978 (Effect of sulphur containing compounds on anaerobic degradation of cellulose to methane by mixed cultures obtained microbiology). Journal of applied Env. Microbiology, Vol. 35, 1027-1034. DOI: https://doi.org/10.1128/aem.35.6.1027-1034.1978
Morse, A., Jackson. A., Ken. R., and Pickering. K 2002 (Amoxicillin in Biological water recovery system). CSCE/EWR. ASCE Environmental engineering conf. 2002.
Nandy T., and kaul. S.N 2001(Anaerobic pretreatment of herbal based pharmaceutical wastewater using fixed film reactor with recourse to energy recovery). Journal of water. Res. Vol. 35 No.2, pp.351-362. DOI: https://doi.org/10.1016/S0043-1354(00)00263-3
Negulescu. M. 1985 (Municipal wastewater treatment) Editor. Tehnica – Romania.
Olesen. P.B., Jensan A.L., and Nickelsen, C.1999 (Pilot scale experiments anaerobic treatment of wastewater from a fish processing plant). Journal of wat. Sci tech. Vol.22, No.1/2, pp. 463-474. DOI: https://doi.org/10.2166/wst.1990.0170
Sach, E.F., Jennett, J.C., and Rand, MC., 1982 (Pharmaceutical waste treatment by anaeobic Filter). Journal of ASCE–EE no. 108 No. EE2. 297-341. DOI: https://doi.org/10.1061/JEEGAV.0001287
Sarner, E. 1990 (Removal of sulphate and sulphide in anaerobic trickling (AnTric) filter) Journal of wat. Sci and tech. Vol.22. Pp.95-404. DOI: https://doi.org/10.2166/wst.1990.0164
Steel .E.W, McGhee T.J 1982 (Water supply and sewerage) 5th edition MC. hill.
Tanak, S. and Matsu. T 1986 (Treatment characteristics of two-phase anaerobic digestion system using an upflow biofilter). Water. Sci. Tech, Journal Vol.718 PP 217-224 DOI: https://doi.org/10.2166/wst.1986.0293
Trudinger, P.A 1969 (Assimilatory and dissimilatory metabolism of inorganic sulfur psychology, 3,111-158. 23. White C., Burt, D .2004. http://www.biotank.co.UK.other.comound in wastewater DOI: https://doi.org/10.1016/S0065-2911(08)60367-7
Young. J.C and Dahab, M.F. 1983 (Effect of media design on performance of fixed–Bed anaerobic technology) Journal of Wat. Sci. Tech. Vol. 15 PP.369-388. DOI: https://doi.org/10.2166/wst.1983.0179