The Challenge
Bahria Enclave, a planned housing development in Islamabad, needed a wastewater treatment system that could scale to a residential community's domestic sewage volume while meeting a meaningful pollutant-reduction standard.
The Solution
Critical GREEN designed a constructed wetland-based wastewater treatment solution, applying biological treatment processes within an engineered wetland environment sized for the development's needs.
The Outcome
The system was engineered for up to 85% reduction in COD, BOD, TSS and fecal coliform — a strong performance benchmark for a nature-based system — and demonstrates how constructed wetland treatment scales cleanly to planned housing developments, integrated directly into the residential landscape rather than hidden away as purely utilitarian infrastructure.
