Abstract
Sewage sludge contains plenty of cellulose that is recognized as a biomass resource. All of cellulose containing in sludge are however treated and disposed with sludge without recovering as a resource. This study noted a resourcefu11ness of cellulose contained in sludge, produced the adsorbents by the mixture and the burning of cellulose recovered from sludge and thermosetting resin, and evaluated the abilities of deodorization as an adsorbent. The weights of samples were drastically reduced during the temperatures from 300 to 600°C because of the characteristics of cellulose and phenol resin. The sample burned at 400°C in nitrogen atmosphere was the highest methylene blue and iodine adsorption capacities, and these values were more than the recommendation values of Japan Water Works Association. Moreover the deodorization test suggested that the sample burned at 400°C in nitmgen atmosphere was the highest to adsorb hydrogen sulfide. These results showed that the production of new adsorbent was able to be produced by cellulose recovered from primary sludge and phenol resin and suggested to utilize as a recovery resource.
