Up Flow Anaerobic Sludge Blanket - Special Reference to Treatment of Wastewater from Solvent Black 46
An anaerobic sludge blanket wastewater treatment system uses an anaerobic process by forming a blanket of granular sludge which suspends in the tank whereas wastewater flows upwards through the blanket and is degraded by the anaerobic microorganisms. The upward flow combined with the settling action of gravity suspends the blanket with the aid of flocculants while the blanket begins to reach maturity at around three months. Small sludge granules begin to form whose surface area is covered in aggregations of bacteria.The performance of Up flow anaerobic sludge blanket (UASB) treating real wastewater generated from manufacturing of Solvent Black 46 (SB46) was investigated. Specifically, it was determined whether UASB could be used as treatment system at an existing dyestuffs production plant. Accordingly, UASB was developed with a reactor volume 25 L was being operated in different phases. Consistent chemical oxygen demand (COD) removal efficiency of around 90% was achieved at an organic loading rate (OLR) of 2 kg COD/ m3 d at inlet COD of 20000 mg/L. Effect of varying OLR on COD removal efficiency and methane production was evaluated by feeding wastewater at COD of 10000 mg/L. The COD removal efficiency of >90% at OLR of 2 gradually decreased to ~80% at OLR of 5 kg COD/ m3 d. Methane production was 320-343 L/kg COD removed at OLR 2 kg COD/ m3 d decreased to 147-200 L/kg COD removed at OLR of 5 kg COD/ m3 d. . Decolonization of wastewater led to generation of aromatic amines indicated by formation of a new peak at 286 nm in UV-Vis spectrum. Inlet pH of feed was in the range 6-6.3 which increased to 8.5-8.6 indicating degradation of acetate in the wastewater. Results of this study suggest that anaerobic treatment can be employed advantageously for SB46 wastewater, resulting in excellent COD removal without any energy input and producing useful methane.
Up flow anaerobic sludge blanket, treatment of wastewater, Solvent black effluent, COD, BOD, Methane production
i. Abdelkader Anouzla, Younes Abrouki, Salah Souabi, Mohammed Safi, Hicham Rhbal,; Color and COD removal of disperse dye solution by a novel coagulant: Application of statistical design for the optimization and regression analysis,; Journal of Hazardous Materials 166 , 1302–1306, 2009
ii. Anissa Aouni, Cheïma Fersi, Mourad Ben Sik Ali, Mahmoud Dhahbi,; Treatment of textile wastewater by a hybrid electrocoagulation/nanofiltration process,; Journal of Hazardous Materials 168, 868–874,2009
iii. Ayoob Torkian, A. Eqbali, S.J. Hashemian; The effect of organic loading rate on the performance of UASB reactor treating slaughterhouse effluent., Resources, Conservation and Recycling 40, 1–11, 2003
iv. Gao, Mengchu, She, Zonglian and Jin, Chunji,. “Performance evaluation of a mesophilic (37 o C) upflow anaerobic sludge blanket reactor in treating distiller’s grains wastewater”. Journal of Hazardous Materials, 141, 808-813, 2007
v. H.E. Reynel-Avila, D.I. Mendoza-Castillo, A. Bonilla-Petriciolet ;, Relevance of anionic dye properties on water decolonization performance using bone char: Adsorption kinetics, isotherms and breakthrough curves,; Journal of Molecular Liquids 219, 425–434,2016
vi. Hampannavar, U.S;, Shivayogimath, C.B;, Anaerobic treatment of sugar industry wastewater by Upflow anaerobic sludge blanket reactor at ambient temperature;, International Journal of Environmental Sciences Volume 1, 2010
vii. Imen Khouni, Benoît Marrot, Philippe Moulin, Raja Ben Amar,; Decolourization of the reconstituted textile effluent by different process treatments: Enzymatic catalysis, coagulation/flocculation and nanofiltration processes,; Desalination 268, 27–37, 2011
viii. Jitender Kumar Saini., Anju Saini., and Rajesh Kumar Lohchab., Rice mill wastewater treatment by UASB., International journal of plant, animal and environmental sciences, Volume-6, 2016
ix. K.Kaviyarasan,; Application of UASB Reactor in Industrial Wastewater Treatment – A Review;, International Journal of Scientific & Engineering Research, Volume 5, 2014
x. Mohammad Fadhil Abid, Mumtaz Abdulahad Zablouk, and Abeer Muhssen Abid-Alameer; Experimental study of dye removal from industrial wastewater by membrane technologies of reverse osmosis and nanofiltration;, Iranian Journal of Environmental Health Science & Engineering, 2012
xi. Mustafa KARATAs, Sukru DURSUN, Mehmet Emin ARGUN, The Decolonization of Azo Dye Reactive Black 5 in a Sequential Anaerobic-Aerobic System, Ekoloji 19, 74, 15-23 (2010)
xii. Neha Kumar; Impact of Dye Industry on Environment, 2014
xiii. Nishtar Nishad Fathima, Rathinam Aravindhan, Jonnalagadda Raghava Rao , Balachandran Unni Nair,; Dye house wastewater treatment through advanced oxidation process using Cu-exchanged Y zeolite: A heterogeneous catalytic approach; Chemosphere 70, 1146–1151, 2008.
xiv. P. Nigam, G. Armour, I.M. Banat , D. Singh, R. Marchant ;,Physical removal of textile dyes from effluents and solid-state fermentation of dye-adsorbed agricultural residues; Bioresource Technology 72, 2000
xv. R. Bello-Mendoza and M. F. Castillo-Rivera,; Start-up of an Anaerobic Hybrid (UASB⁄Filter) Reactor Treating Wastewater from a Coffee Processing Plant,; Anaerobe _1998. 4, 219-225, 1998
xvi. Rui Zhang, Dong-Xing Yuan, Bao-Min Liu,; Kinetics and products of ozonation of C.I. Reactive Red 195 in a semi-batch reactor,; Chinese Chemical Letters xxx, 2014
xvii. S. Popli, Upendra. D. Patel; Destruction of azo dyes by anaerobic–aerobic sequential biological treatment: a review; International Journal of Environmental Science and Technology; Vol. 12, 2015.
xviii. Shreeshivadasan Chelliapan, Thomas Wilby, Paul J. Sallis,; Performance of an up-flow anaerobic stage reactor (UASR) in the treatment of pharmaceutical wastewater containing macrolide antibiotics,; WATER RESEARCH 40, 507 – 516, 2006
xix. Subramanian Natarajan, Hari C. Bajaj, Rajesh J. Tayade,; Recent advances based on the synergetic effect of adsorption for removal of dyes from waste water using photocatalytic process,; Journal of Environmental Sciences, 2017
xx. V.P. Mangal www.fibre2fashion.com/industry-article/5118/the-future-of-indian-dyes-dye-intermediates#, May 2010 worlddyevariety.com/solvent-dyes/slvent-black-46Cite this Article: