on sludge granulation in UASB reactor
نویسندگان
چکیده
Impact of trivalent aluminium (Al) ion, added to the feed of upflow anaerobic sludge blanket (UASB) reactor, was assessed on the granulation of the reactor sludge. The impact on the reactor efficiency in treating chemical oxygen demand (COD) and generating biogas was also simultaneously assessed. It was seen that, at all the three Al concentrations (100, 200 & 300 mg/L) studied, the metal ion facilitated formation of larger-sized granules in greater proportions than the control reactor; the effect was most pronounced at 300 mg/L Al concentration. The metal fortification did not, however, influence the reactor efficiency.
منابع مشابه
Role of calcium (II) in anaerobic sludge granulation and UASB reactor operation: A method to develop calcium-fortified sludge outside the UASB reactors
Calcium is essential to the growth of several strains of microorganisms involved in anaerobic digestion. It has also been found to be effective in speeding up granulation of anaerobic sludges. But there are reports that the metal can exert a harmful effect on the performance of upflow anaerobic sludge blanket (UASB) reactor by causing the ‘cementing’ of some of the active sludge in the reactor,...
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متن کاملPii: S0043-1354(00)00345-6
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