ETE Novo Horizonte 1 - Secondary Wastewater Treatment Plant in Rio de Janeiro, Brazil

ETE Novo Horizonte 1 is a wastewater treatment plant located in the Vargem Pequena neighborhood of Rio de Janeiro, Brazil. It serves a population of 1,434 and operates with secondary treatment, a standard level for smaller communities in the region. The plant is situated in the Rio de Janeiro metropolitan area, a densely populated coastal zone. The plant provides secondary treatment, which typically involves biological processes to reduce organic matter and suspended solids. The plant's discharge volume of 275.24 m³/day indicates it is designed for a small community. Under Brazilian regulations, such plants must comply with CONAMA Resolution 430/2011, which sets effluent quality standards for discharge into water bodies. The treated effluent is discharged into local waterways that flow into the Atlantic Ocean, as the plant is within 10 km of the coast. This coastal discharge requires careful management to protect marine ecosystems, including nearby beaches and mangroves. The plant plays a role in reducing pollution in the Barra da Tijuca region, supporting water quality and public health.

The plant discharges into the Atlantic Ocean via local drainage channels in the Barra da Tijuca region. This coastal area supports diverse marine life, including fish and crustaceans, and is important for local fisheries and tourism. The discharge must meet Brazilian standards to minimize eutrophication and protect sensitive coastal habitats.