Sector
Water and wastewater plant suppliers in Bangladesh
Sewage and effluent treatment plants, packaged units, johkasou and filter media, designed to your flow and discharge standard.
5 categories in water and wastewater
Each opens its own page with products, the specification a seller needs, the checks we run and a form to get it sourced.

STP
Sewage treatment plants, packaged or built on site.
See the category
ETP plant
Effluent treatment plants for dyeing, washing and processing.
See the category
Wastewater treatment plant
Municipal and industrial wastewater treatment.
See the categoryJohkasou
Compact underground treatment units for buildings.
See the category
Filter media
Activated carbon, molecular sieves and ceramic balls.
See the categorySourcing water and wastewater through Roptan
Factories need effluent treatment plants to meet the Department of Environment's discharge standards, and buildings, hospitals and housing projects need sewage treatment. Bangladeshi contractors design, build and commission these plants, and suppliers stock the media, membranes and equipment that go into them.
Roptan asks for the design basis and the discharge standard the plant must meet, checks the contractor's licence and installation record, and gets warranty and service terms in writing. We visit a working installation before recommending a contractor.
What we check in this sector
- Trade licence and installation recordPlants that are running, with the client named.
- Design basis and discharge standardThe standard the plant is built to meet, in writing.
- Warranty and after sales in writingService visits and spare parts included or priced.
- A visit to a working installationBefore the order is placed.
What Bangladesh exports in this sector
Export Promotion Bureau figures for July 2025 to June 2026, by the HS lines Roptan maps to each category. Together $1.6 m, 0.00% of the country's goods exports.
| Category | Exports | Main markets |
|---|---|---|
| Filter media | $0.87 m | India |
| ETP plant | $0.77 m | China, India, United Arab Emirates |