Wastewater treatment and reuse/reclamation CASE STUDY
Summary
The document advocates for decentralized wastewater treatment in South Africa to address infrastructure deterioration and high costs associated with centralized systems. It identifies key benefits such as non-potable water reuse and sludge beneficiation for energy and fertilizer, while noting a R33bn annual funding shortfall in the water and sanitation sector. Regulatory drivers include a national target to divert 75% of organic waste from landfills by 2030 and a liquid waste to landfill ban by 2027.
Key insights
- Centralized wastewater treatment systems face significant cost and time barriers, with connection and sludge management accounting for approximately 40% to 60% of total plant costs.
- Decentralized on-site wastewater treatment is presented as a more cost-effective alternative that can be implemented quickly without requiring connections to central plants.
- There are significant regulatory drivers for wastewater reuse in South Africa, including a national target for 75% organic waste diversion from landfills by 2030 and a liquid waste to landfill ban by 2027.
- The South African water and sanitation sector faces a substantial funding gap; the Department of Water and Sanitation estimates a R90bn annual capital requirement, resulting in a shortfall of R33bn per annum.
- An assessment of 824 wastewater treatment works (WWTWs) in South Africa reveals widespread risk, with 212 classified as critical risks and 259 as high risk.
Cite the original document
- APA
- GreenCape (n.d.). Wastewater treatment and reuse/reclamation CASE STUDY. https://greencape.co.za/assets/FNF-Case-Study-4-Wastewater-treatment.pdf
- Chicago
- GreenCape. Wastewater treatment and reuse/reclamation CASE STUDY. n.d. https://greencape.co.za/assets/FNF-Case-Study-4-Wastewater-treatment.pdf.
- Wikipedia
- {{cite report |author=GreenCape |title=Wastewater treatment and reuse/reclamation CASE STUDY |url=https://greencape.co.za/assets/FNF-Case-Study-4-Wastewater-treatment.pdf |access-date=17 August 2026 |via=Climate Insights Directory}}
- BibTeX
- @techreport{greencapendwastewater, author = {{GreenCape}}, title = {{Wastewater treatment and reuse/reclamation CASE STUDY}}, institution = {GreenCape}, url = {https://greencape.co.za/assets/FNF-Case-Study-4-Wastewater-treatment.pdf}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }
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