Reuse changes the rules
In water-scarce regions, treated wastewater is no longer waste — it is a resource for irrigation, industry and aquifer recharge. But once effluent is destined for reuse, the quality bar rises dramatically. Pathogens, CECs and dissolved gases that might be tolerated in a discharge to sea become unacceptable when the water re-enters the urban environment.
Lessons from Abu Dhabi
Large Gulf cities have moved aggressively toward near-total reuse, and their experience shows that success depends on reliable, fast-acting treatment that can be deployed across sprawling networks without massive new infrastructure. Dosing advanced oxidisers directly into sewer networks has proven effective at controlling H₂S and improving effluent quality at scale.
Why it matters for South Africa
South Africa faces its own water-security pressures, and reuse is increasingly part of the conversation. The Middle East offers a working template: invest in treatment quality first, and the reuse economics follow.
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