Abstract: A wastewater purifying apparatus has plural treatment chambers for stepwise purifying wastewater discharged from a lavatory, a storage chamber for storing purified wastewater derived from the downstream-most treatment chamber, and a purified wastewater storage tank. A suction port is formed in the upstream-most treatment chamber for sucking the wastewater. Refluxing equipment refluxes wastewater from the treatment chambers downstream of the upstream-most treatment chamber into the upstream most treatment chamber. A purified wastewater supplier supplies the purified wastewater in the purified wastewater storage tank into the upstream-most treatment chamber. The above arrangement performs expedient and sophisticated purification treatment of the wastewater containing sludge components, such as sewage discharged from the lavatory, or miscellaneous effluents generated by pulverizing garbage by a disposer. The arrangement also simplifies washing of the apparatus.

Abstract: A wastewater purifying apparatus has plural treatment chambers for stepwise purifying wastewater discharged from a lavatory, a storage chamber for storing purified wastewater derived from the downstream-most treatment chamber, and a purified wastewater storage tank. A suction port is formed in the upstream-most treatment chamber for sucking the wastewater. Refluxing equipment refluxes wastewater from the treatment chambers downstream of the upstream-most treatment chamber into the upstream most treatment chamber. A purified wastewater supplier supplies the purified wastewater in the purified wastewater storage tank into the upstream-most treatment chamber. The above arrangement performs expedient and sophisticated purification treatment of the wastewater containing sludge components, such as sewage discharged from the lavatory, or miscellaneous effluents generated by pulverizing garbage by a disposer. The arrangement also simplifies washing of the apparatus.

Abstract: To purify wastewater discharged from lavatories (3), a wastewater purifying apparatus having a shell contact aeration chamber (6, 7) placed with shell microbial carrier members (15), the wastewater being fed to and purified in the shell contact aeration chamber (6, 7). Shells whose mother-of-pearl layer on the inner surface (b) is at least removed are used as the microbial carrier member (15).

Abstract: To purify wastewater discharged from lavatories (3), a wastewater purifying apparatus having a shell contact aeration chamber (6, 7) placed with shell microbial carrier members (15), the wastewater being fed to and purified in the shell contact aeration chamber (6, 7). Shells whose mother-of-pearl layer on the inner surface (b) is at least removed are used as the microbial carrier member (15).

Abstract: A dry distillation and volume reduction apparatus for waste comprising a superheated steam generator 1 for generating a superheated steam, a dry distillation and volume reduction vessel 2 for heating waste 5 and subjecting the same to dry distillation and volume reduction with the superheated steam supplied from the superheated steam generator 1, and heating gas supplier 4 for supplying exhaust gas of an engine 3 as a heat source for heating the superheated steam generator 1. Furthermore, the superheated steam can also be generated by producing a combustible gas by incomplete combustion of carbides 52 produced by heating of organic waste 52 in the dry distillation and volume reduction vessel 2 using heating gas supplier 4.

Abstract: Cephalosporin compounds represented by the following formula (I) and pharmaceutically acceptable salts thereof have a broad bactericidal spectrum against various pathogenic bacteria including Psuedomonas aeruginosa and are useful as bactericidal remedies for pathogenic diseases of human and animals: ##STR1## wherein A represents an unsubstituted or substituted pyridylthio group of a formula (I-1); ##STR2## or an unsubstituted or substituted pyridiniumthio group of a formula (I-2): ##STR3## or an unsubstituted or substituted pyridinium group of a formula (I-3); ##STR4## or a 5- or 6-membered heterocyclicthio or bicycloheterocyclicthio group of a formula (I-4):--S--Het (I-4).