Upflow anaerobic sludge bed method

摘要

PURPOSE: To provide an upflow anaerobic sludge bed process by which sludge is granulated in a short time and the granulated sludge is formed irrespective of the kind of methane bacteria. CONSTITUTION: In the treatment of org. sewage by an upflow anaerobic sludge bed process, a Ca compd. is added into the raw water, CaCO3 is formed by the carbon dioxide generated by the methane fermentation, and methane bacteria are deposited on the CaCO3 as a carrier to form a pellet-shaped granulated sludge.