. . . . . . "24590863"^^ . . . . "Extended aeration is a method of sewage treatment using modified activated sludge procedures. It is preferred for relatively small waste loads, where lower operating efficiency is offset by mechanical simplicity."@en . . . . . . . . . . . . . "1041177971"^^ . . . . . . . "Extended aeration"@en . . . . "2893"^^ . . . . . . . . . . . . . . . . . . "Extended aeration is a method of sewage treatment using modified activated sludge procedures. It is preferred for relatively small waste loads, where lower operating efficiency is offset by mechanical simplicity."@en .