Gareth Alistair Holtman

Characterisation of winery wastewater from continuous flow settling basins and waste stabilisation ponds over the course of 1 year: implications for biological wastewater treatment and land application

Pamela J. Welz, Gareth Alistair Holtman, Marilize Le Roes‐Hill · Water Science & Technology · 2016 · 57 citations · Full text

Engineering, Environmental Engineering, Environmental Sciences +15

Biological sand filter system treating winery effluent for effective reduction in organic load and pH neutralisation

Gareth Alistair Holtman, Rainer Haldenwang, Pamela J. Welz · Journal of Water Process Engineering · 2018 · 29 citations

Engineering, Chemical Engineering, Environmental Engineering +17

The influence of grain physicochemistry and biomass on hydraulic conductivity in sand-filled treatment wetlands

Pamela J. Welz, Willy Mbasha, Ian G. N. Smith et al. · Ecological Engineering · 2018 · 19 citations

Engineering, Earth Sciences, Environmental Engineering +16

Resource recovery from tannery wastewater using an integrated biological system: Towards a circular bioeconomy and net positive tannery operations

A.B. Mpofu, W.M. Kaira, Gareth Alistair Holtman et al. · Journal of Cleaner Production · 2023 · 10 citations

Engineering, Environmental Engineering, Sustainable Resource Management +17