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Investigation into filamentous bulking and foaming in activated sludge plants in South Africa
Author: J R Blackbeard  G A Ekama  G v R Marais   ISBN: B0018NGBTW   /   Unknown Binding Publisher: University of Cape Town   /   1985
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A rational theory for the design of sewage stabilization ponds in Central and South Africa
Author: G v R Marais   ISBN: B0007KD3BG   /   Unknown Binding Publisher: South African Council for Scientific and Industrial Research   /   1961
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Carbonate Chemistry of Aquatic Systems (An Ann Arbor science book)
Author: R E Loewenthal  G V R Marais   ISBN: 025040141X   /   Unknown Binding Publisher: Ann Arbor Sci. Pub.   /   1976-12-01 List Price: £28.00
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A Rational Theory for the Design of Sewage Stabilization Ponds in Central and South Africa. By. G.V.R. Marais and V.a. Shaw
Author: Gerrit van Rooyen Marais  V A Shaw   ISBN: B0018KLASW   /   Unknown Binding   /   1962
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Carbonate Chemistry of Aquatic Systems: High Salinity Waters
Author: R E Loewenthal  G V R Marais   ISBN: 0250401509   /   Textbook Binding   /   1984-06 List Price: £52.00
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