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Treatment of Wool Scouring Waste Using Anaerobic Digestion with and without Chemicals Addition
Authors: M. Z. Othman
Abstract:The aim of this study was to investigate the effectiveness of anaerobic digestion for the treatment of wool scouring wastes. The experiments design comprised three ratios of waste (W) to seed(S) (W:S) of 25:75, 50:50 and 75:25, corresponding to 1.9. 1.7 and 1.5g tCOD/g TS, respectively, with or without chemicals addition. NH4Cl was added to the reactors as a source for nitrogen to achieve C:N:P of 420:14:3. A cationic flocculent was added at 0.5 and 0.75% to enhance flocculation of sludge. The results showed that the reactors that received W:S at a ratio of 25:75 produced the largest volume of biogas. The final soluble COD (sCOD) was below the limits for discharge to the sewer system.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1061414Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1844
 Christoe, J.R. (1977) Treatment of wool-scouring effluents with inorganic chemicals. J.Wat.Pollut. Control.Fed. 49, 848-853.
 McLachlan C.N.S., Smith D.K.W., Webb R.J. (1978a) the treatment of woolscour effluent- 1. Removal of colloidal dirt. Wat. Res. 14, 729-733.
 McLachlan C.N.S., Smith D.K.W., Fieldes R.B. (1978b). The treatment of woolscour effluent- 2. Grease removal by alcohol extraction. Wat. Res. 14, 735-740.
 Stewart R.G. (1985) Woolscouring and Allied Technology, 2nd edition. Caxton Press, Christchruch.
 Gibson, J.D.M., Morgan W.V., Robinson B (1982) Wool scouring and effluent treatments. Wool Sci. Rev.57, 1-32.
 Cail, R.G., Barford, J.P., Lichacz,R. (1986) Anaerobic digestion of wool scouring wastewater in a digester operated semi-continuously for biomass retention, Agricultural Wastes. 18, 27-38.
 American Public Health Association. (1998). Standard Methods for the Examination of Water and Wastewater (19th ed). Washington, DC: United Book Press.
 Demirer, G.N., Chen, S.(2005) Two-phase anaerobic digestion of unscreened dairy manure. Proc. Biochem. 40, 3542-3549.
 Demirer, G.N., Othman, M. (2008) Two-phase thermophilic acidification and mesophilic methanogenesis anaerobic digestion of waste-activated sludge. Environ.Eng.Sci. 25, 1291-1300.