Central Wastewater Treatment Plant, Durban, KwaZulu-Natal, South Africa

Central is a major wastewater treatment plant serving the eThekwini Metropolitan Municipality in Durban, KwaZulu-Natal, South Africa. With a population served of nearly 1 million, it is one of the largest treatment facilities in the region, handling municipal wastewater from a densely populated urban area. As a large agglomeration, the plant is expected to meet South Africa's national water quality standards under the National Water Act (Act 36 of 1998) and the Water Services Act. The designed capacity is reported at 1. Plants of this scale typically employ secondary or tertiary treatment to comply with discharge standards. The treated effluent is discharged into local rivers that flow into the Indian Ocean, affecting coastal water quality and marine ecosystems. The plant plays a critical role in protecting the recreational beaches and estuarine habitats along the Durban coastline, which support diverse aquatic life and are important for tourism and fisheries.

Central plant discharges into the Umgeni River system, which flows into the Indian Ocean at Durban Bay. The downstream environment includes the Durban Harbour and adjacent coastal waters, which support mangrove forests, seagrass beds, and coral reefs. These ecosystems are sensitive to nutrient loading and require effective treatment to prevent eutrophication and protect marine biodiversity.