Activated sludge : theory and practice /
Gray, N. F.
Activated sludge : theory and practice / N.F. Gray. - Oxford ; New York : Oxford University Press, 1990. - ix, 272 p. : ill. ; 24 cm. - Oxford science publications .
Erratum slip inserted.
Includes bibliographical references (p. [247]-267) and index.
0198563418
89072135
Sewage--Purification--Activated sludge process.
Sewage Treatment Activated sludge process
628.354 GRA
Activated sludge : theory and practice / N.F. Gray. - Oxford ; New York : Oxford University Press, 1990. - ix, 272 p. : ill. ; 24 cm. - Oxford science publications .
Erratum slip inserted.
Includes bibliographical references (p. [247]-267) and index.
0198563418
89072135
Sewage--Purification--Activated sludge process.
Sewage Treatment Activated sludge process
628.354 GRA