The global wastewater treatment plants market is experiencing strong growth as governments, industries, and municipalities invest heavily in sustainable water management infrastructure. The market, valued at approximately USD 140.4 billion in 2025, is estimated to reach around USD 155.6 billion in 2026 and is projected to expand to nearly USD 308.2 billion by 2035, growing at a CAGR of about 7.9% during the forecast period from 2026 to 2035.
Rising urbanization, industrial expansion, and increasi
