Iwai, Shigehisa, 4 0 1916-

Wastewater treatment with microbial films / 6 6 Shigehisa Iwai, Takane Kitao. - - - viii, 184 p. : ill. 23 cm. - - - - - . - . - 0 . - . - 0 .



Includes bibliographical references (p. 179-182) and index.



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Sewage ----Purification;Fixed-film biological process.----20--


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