Vol. 35 No. 5 (2009)

Published: 2009-12-15

Biological sulphate reduction with primary sewage sludge in an upflow anaerobic sludge bed (UASB) reactor – Part 1: Feasibility study

J Poinapen, MC Wentzel, GA Ekama Ekama

DOI:

10.4314/wsa.v35i5.49178

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Biological sulphate reduction with primary sewage sludge in an upflow anaerobic sludge bed (UASB) reactor – Part 2: Modification of simple wet chemistry analytical procedures to achieve COD and S mass balances

J Poinapen, GA Ekama, MC Wentzel

DOI:

10.4314/wsa.v35i5.49179

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Biological sulphate reduction with primary sewage sludge in an upflow anaerobic sludge bed (UASB) reactor – Part 3: Performance at 20°C and 35°C

J Poinapen Poinapen, GA Ekama Ekama, MC Wentzel Wentzel

DOI:

10.4314/wsa.v35i5.49180

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Biological sulphate reduction with primary sewage sludge in an upflow anaerobic sludge bed (UASB) reactor – Part 4: Bed settling characteristics

J Poinapen, GA Ekama, MC Wentzel

DOI:

10.4314/wsa.v35i5.49181

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Analogous simulation of nutrient transformation processes in stream sediments

Y Todorova, R Belev, Y Topalova, I Ribarova

DOI:

10.4314/wsa.v35i5.49182

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Evaluation of modifications to a physicochemical method for determination of readily biodegradable COD

A Escalas-Cañellas, MA Ortiz-Balderas, MG Barajas-López

DOI:

10.4314/wsa.v35i5.49183

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The influence of land use on water quality and diatom community structures in urban and agriculturally stressed rivers

G Walsh Walsh, V Wepener

DOI:

10.4314/wsa.v35i5.49184

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Morphological abnormalities of diatom silica walls in relation to heavy metal contamination and artificial growth conditions

E Falasco, F Bona, M Ginepro, D Hlúbiková, L Hoffmann, L Ector

DOI:

10.4314/wsa.v35i5.49185

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Conveyance estimation in channels with emergent bank vegetation

PM Hirschowitz, CS James

DOI:

10.4314/wsa.v35i5.49186

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The simple modelling method for storm- and grey-water quality management applied to Alexandra settlement

Y Owusu-Asante, J Ndiritu

DOI:

10.4314/wsa.v35i5.49187

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Heavy daily-rainfall characteristics over the Gauteng Province

LL Dyson

DOI:

10.4314/wsa.v35i5.49188

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Quantifying rainfall-runoff relationships on the Melkassa Hypo Calcic Regosol ecotope in Ethiopia

WA Welderufael, PAL le Roux, M Hensley

DOI:

10.4314/wsa.v35i5.49189

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Evaluation of potential changes in hydrologically relevant statistics of rainfall in Southern Africa under conditions of climate change^#

TG Lumsden

DOI:

10.4314/wsa.v35i5.49190

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Is Groenvlei really fed by groundwater discharged from the Table Mountain Group (TMG) Aquifer?

R Parsons

DOI:

10.4314/wsa.v35i5.49425

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Comparison of GRACE with in situ hydrological measurement data shows storage depletion in Hai River basin, Northern China

JP Moiwo, Y Yang, H Li, S Han, Y Hu

DOI:

10.4314/wsa.v35i5.49192

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Has monitoring failed the Olifants River, Mpumalanga?

S de Villiers, ST Mkwelo

DOI:

10.4314/wsa.v35i5.49193

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Who uses the fishery resources in South Africa’s largest impoundment? Characterising subsistence and recreational fishing sectors on Lake Gariep

BR Ellender, OLF Weyl, H Winker

DOI:

10.4314/wsa.v35i5.49194

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Is there a role for traditional governance systems in South Africa’s new water management regime?

F Kapfudzaruwa, M Sowman

DOI:

10.4314/wsa.v35i5.49195

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A detailed analysis of evolution of water rights in South Africa: An account of three and a half centuries from 1652 AD to present^#

DD Tewari

DOI:

10.4314/wsa.v35i5.49196

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Distribution and habitats of Melanoides tuberculata (Müller, 1774) and M. victoriae (Dohrn, 1865) (Mollusca: Prosobranchia: Thiaridae) in South Africa

KN de Kock, CT Wolmarans

DOI:

10.4314/wsa.v35i5.49197

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Nitrate-nitrogen removal with small-scale reverse osmosis, electrodialysis and ion-exchange units in rural areas

JJ Schoeman

DOI:

10.4314/wsa.v35i5.49198

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Cyclodextrin-ionic liquid polyurethanes for application in drinking water treatment

TJ Malefetse, BB Mamba, RW Krause, MM Mahlambi

DOI:

10.4314/wsa.v35i5.49199

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Review: Nitrosamines: A review on their prevalence as emerging pollutants and potential remediation options

SH Mhlongo, BB Mamba, RW Krause

DOI:

10.4314/wsa.v35i5.49200

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Review of commonly used remote sensing and ground-based technologies to measure plant water stress

M Govender, PJ Govender, IM Weiersbye, ETF Witkowski, F Ahmed

DOI:

10.4314/wsa.v35i5.49201

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Review: Wetlands and invertebrate disease hosts: Are we asking for trouble?

HL Malan, CC Appleton, JA Day, J Dini

DOI:

10.4314/wsa.v35i5.49202

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