@techreport{oai:soar-ir.repo.nii.ac.jp:00017013,
 author = {Yoshiki,  Sano and Osamu,  Ariga},
 month = {Mar},
 note = {In our country， activated sludge process is the most popular for the treatment of organic industrial waste water and municipal sewage. Moreover， quick promotion of municipal sewage system plan in this country will soon result in serious problems of the ultimate disposal of excess sludge. In this work， pretreatment and resourcing of excess sludge from municipal sewage plant are discussed as well as posible minimization and stabilization of the excess sludge. In general. alkali especially hot alkali was more effective than acid for degradation of sludge. But， SVI which relates to the kind of microorganisms influenced on the degradation index， i.e. floc formation cells were more easy to degradate than filamentous bacteria. Moreover， the authors suggested a few of the ultimate disposal of the excess sludge although there is noneofeffective method for complete disposal., Article, 信州大学環境科学論集10:42-48(1988)},
 title = {Resourcing and Ultimate Disposal of Pretreated Excess Activated Sludge},
 year = {1988}
}