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Effect of high sulfite contents on anaerobic digestion of raisin-finishing wastewater
AbstractTreating raisin-finishing wastewater in an upflow anaerobic sludge bed reactor, no significant inhibition was observed using feeds with unusually high sulfite contents, 5000–9000 mg liter−1, when the CO concentrations were 38 000–43 000 mg liter−1. Moreover, relatively high undissociated hydrogen sulfide concentrations (close to 200 mg liter−1) were not an inhibitory factor in COD removal efficiency. Sulfides resulted in a reduction of methane in the biogas. Higher methane concentrations were obtained with relatively average COD and sulfite contents. The toxicity related to the COD (SO32− -S) (amount of SO32− expressed as S) ratio was lower at the largest COD values of the influent used (38 000–43 000 mg liter−1 than at smaller (7000–14 000 mg liter−1), at similar COD (SO32− -S) ratios of 19–30.
Effect of high sulfite contents on anaerobic digestion of raisin-finishing wastewater
AbstractTreating raisin-finishing wastewater in an upflow anaerobic sludge bed reactor, no significant inhibition was observed using feeds with unusually high sulfite contents, 5000–9000 mg liter−1, when the CO concentrations were 38 000–43 000 mg liter−1. Moreover, relatively high undissociated hydrogen sulfide concentrations (close to 200 mg liter−1) were not an inhibitory factor in COD removal efficiency. Sulfides resulted in a reduction of methane in the biogas. Higher methane concentrations were obtained with relatively average COD and sulfite contents. The toxicity related to the COD (SO32− -S) (amount of SO32− expressed as S) ratio was lower at the largest COD values of the influent used (38 000–43 000 mg liter−1 than at smaller (7000–14 000 mg liter−1), at similar COD (SO32− -S) ratios of 19–30.
Effect of high sulfite contents on anaerobic digestion of raisin-finishing wastewater
Athanassopoulos, N. (author) / Kouinis, J. (author) / Papadimitriou, A. (author) / Koutinas, A.A. (author)
Biological Wastes ; 30 ; 53-60
1989-02-23
8 pages
Article (Journal)
Electronic Resource
English
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