Verification of the bisubstrate concept in modelling of the activated sludge process by Bagg, Wayne Kendall

Subjects: “…Sewage…”
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Biological excess phosphorus removal in short sludge age activated sludge systems by Burke, Russell Armstrong

Subjects: “…Sewage…”
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Die rol van filamentiese mikroorganismes by faseskeiding in geaktiveerde slyk by Viljoen, P. M. J.(Paulus Maartens Jacobus)

Subjects: “…Sewage -- Microbiology…”
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Rhizofiltration of urban effluent : microbial ecology and conceptual treatment mechanisms by Postma, Ferdinand

Subjects: “…Rhizofiltration of sewage…”
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Balanseerdamkapasiteit en besproeiingsarea vir stabilisasiedam-uitvloeisel by Engelbrecht, S. F.(Stephanus Francois)

Subjects: “…Sewage -- Purification…”
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Fosforverwydering in biologiese sypelbeddings. by Pretorius, Jacobus Daniel

Subjects: “…Sewage -- Purification -- Filtration…”
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D.O. control and O.U.R. estimation in the activated sludge process by Bocken, Stephan

Subjects: “…Sewage - Purification - Activated sludge process…”
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Versorging van hoogbelaste biologiese sypelbeduitvloeisel. by Neethling, Johannes Bernardus

Subjects: “…Sewage -- Purification -- Aeration…”
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Investigating the effect of wine and distillery wastewater on the efficacy of an upflow anaerobic sludge blanket (UASB) and enhancing biomass immobilisation by the addition of magn... by Buys, Wendy Yvonne

Subjects: “…Sewage sludge digestion…”
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Biologiese vaste film reaktors. by Faber, Jan Epkes

Subjects: “…Sewage -- Purification -- Filtration…”
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Suurstofoordrag tydens meganiese belugting in die geaktiveerde slyk-proses. by Fouche, Leon

Subjects: “…Sewage -- Purification -- Aeration…”
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Liquid and solids management impact on nutrient ratios for in-line wastewater prefermenters

Subjects: “…Sewage purification…”
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Denitrification kinetics in biological nitrogen and phosphorus removal activated sludge systems by Clayton, John Andrew

Subjects: “…Sewage - Purification - Nitrogen removal…”
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Anaerobic treatment of a paper plant effluent by Russo, Stephen Leonard

Subjects: “…Sewage - Purification - Activated sludge process…”
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Chemiese fosfaatverwydering uit Wellington se huishoudelike afvalwater. by Kritzinger, Johannes

Subjects: “…Sewage -- Purification -- Phosphate removal…”
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Biological treatment of source separated urine in a sequencing batch reactor by McMillan, Morgan

Subjects: “…Urine treatment in sewage…”
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n Ekonomiese vergelyking tussen lug en suiwer suurstof in die geaktiveerdeslykproses vir toepassing in Wes-Kaapland. by Van Rhijn, Hendrik Johannes Petrus

Subjects: “…Sewage -- Purification -- Oxidation -- Economic aspects…”
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Pelletization in the upflow anaerobic sludge bed (UASB) reactor by Sam-Soon, Paul Alan Li Nai Sing

Subjects: “…Sewage - Purification…”
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Die gehalte van slyk uit 'n denitrifiserende geaktiveerde slyk-stelsel by Fourie, S. S.(Simon Stephanus)

Subjects: “…Sewage sludge -- Analysis…”
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