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Dried pelletized sludge was compared with digested sewage and granular sludge for use as seed in anaerobic reactors treating organic wastewaters under a mesophilic temperature. The pelletized sludge used in the size range of 0.25 to 0.60 mm was obtained from the digested sewage sludge after it was dried almost completely at a low temperature (35 o C). The reactor seeded with the dried pelletized...
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