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Vol. 25 No. 3, July 1999
Home Water SA Vol. 25 No. 3, July 1999

Vol. 25 No. 3, July 1999

17 articles

All Water SA issues

  1. The development of a fish index to assess the biological integrity of South African rivers

    Kleynhans CJ

    View PDF — The development of a fish index to assess the biological integrity of South African rivers Download — The development of a fish index to assess the biological integrity of South African rivers

  2. Towards the incorporation of magnitude-frequency concepts into the building block methodology used for quantifying ecological flow requirements of South African rivers

    Hughes DA

    View PDF — Towards the incorporation of magnitude-frequency concepts into the building block methodology used for quantifying ecological flow requirements of South African rivers Download — Towards the incorporation of magnitude-frequency concepts into the building block methodology used for quantifying ecological flow requirements of South African rivers

  3. The continued influence of organic pollution on the water quality of the turbid Modder River

    Koning N, Roos JC

    View PDF — The continued influence of organic pollution on the water quality of the turbid Modder River Download — The continued influence of organic pollution on the water quality of the turbid Modder River

  4. Allozyme variation in the river sardine, Mesobola brevianalis (Pisces, Cyprinidae)

    Engelbrecht GD, Mulder PFS

    View PDF — Allozyme variation in the river sardine, Mesobola brevianalis (Pisces, Cyprinidae) Download — Allozyme variation in the river sardine, Mesobola brevianalis (Pisces, Cyprinidae)

  5. Changing consumer water use-patterns and their effect on microbiological water quality as a result of an engineering intervention

    Jagals P, Bokako TC, Grabow WOK

    View PDF — Changing consumer water use-patterns and their effect on microbiological water quality as a result of an engineering intervention Download — Changing consumer water use-patterns and their effect on microbiological water quality as a result of an engineering intervention

  6. Establishing tradable water rights: Case studies of two irrigation districts in South Africa

    Armitage RM, Nieuwoudt WL, Backeberg GR

    View PDF — Establishing tradable water rights: Case studies of two irrigation districts in South Africa Download — Establishing tradable water rights: Case studies of two irrigation districts in South Africa

  7. The use of seasonal forecasts in South Africa during the 1997/98 rainfall season

    Klopper E

    View PDF — The use of seasonal forecasts in South Africa during the 1997/98 rainfall season Download — The use of seasonal forecasts in South Africa during the 1997/98 rainfall season

  8. Assessing model calibration adequacy via global optimization

    Ndiritu JG, Daniell TM

    View PDF — Assessing model calibration adequacy via global optimization Download — Assessing model calibration adequacy via global optimization

  9. Batch test for measurement of readily biodegradable COD and active organism concentrations in municipal waste waters

    Wentzel MC, Mbewe A, Lakay MT, Ekama GA

    View PDF — Batch test for measurement of readily biodegradable COD and active organism concentrations in municipal waste waters Download — Batch test for measurement of readily biodegradable COD and active organism concentrations in municipal waste waters

  10. The effect of substrate composition on the nutrient removal potential of sequencing batch reactors

    Tasli R, Orhon D, Artan N

    View PDF — The effect of substrate composition on the nutrient removal potential of sequencing batch reactors Download — The effect of substrate composition on the nutrient removal potential of sequencing batch reactors

  11. Microbial composition assessment of anaerobic biomass through methanogenic activity tests

    Jawed M, Tare V

    View PDF — Microbial composition assessment of anaerobic biomass through methanogenic activity tests Download — Microbial composition assessment of anaerobic biomass through methanogenic activity tests

  12. Protein profiles of phosphorus- and nitrate-removing activated sludge systems

    Ehlers MM, Cloete TE

    View PDF — Protein profiles of phosphorus- and nitrate-removing activated sludge systems Download — Protein profiles of phosphorus- and nitrate-removing activated sludge systems

  13. Denitrification by heterotrophic bacteria during activated sludge treatment

    Drysdale GD, Kasan HC, Bux F

    View PDF — Denitrification by heterotrophic bacteria during activated sludge treatment Download — Denitrification by heterotrophic bacteria during activated sludge treatment

  14. Short communication: The reduction of hexavalent chromium by sulphite in wastewater - An explanation of the observed reactivity pattern

    Beukes JP, Pienaar JJ, Lachmann G, Giesekke EW

    View PDF — Short communication: The reduction of hexavalent chromium by sulphite in wastewater - An explanation of the observed reactivity pattern Download — Short communication: The reduction of hexavalent chromium by sulphite in wastewater - An explanation of the observed reactivity pattern

  15. Technical note: A cooling water system as a biofilm reactor for the treatment of municipal wastewater

    Cloete TE, Smith Z, Saayman G

    View PDF — Technical note: A cooling water system as a biofilm reactor for the treatment of municipal wastewater Download — Technical note: A cooling water system as a biofilm reactor for the treatment of municipal wastewater

  16. Short communication: On the determination of the kinetic parameters for the BOD test

    Cutrera G, Manfredi L, del Valle CE, González JF

    View PDF — Short communication: On the determination of the kinetic parameters for the BOD test Download — Short communication: On the determination of the kinetic parameters for the BOD test

  17. Comments on: Direct extractions of proteins to monitor an activated sludge system on a weekly basis for 34 weeks using SDS-Page by MM Ehlers and TE Cloete (1999) (Water SA 25 (1) 57-62)

    Smith S

    View PDF — Comments on: Direct extractions of proteins to monitor an activated sludge system on a weekly basis for 34 weeks using SDS-Page by MM Ehlers and TE Cloete (1999) (Water SA 25 (1) 57-62) Download — Comments on: Direct extractions of proteins to monitor an activated sludge system on a weekly basis for 34 weeks using SDS-Page by MM Ehlers and TE Cloete (1999) (Water SA 25 (1) 57-62)
 
 

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