ETP, STP, WTP & Deep Tube Well Design

#TriangleEngineersLtd.

ETP, STP, WTP & Deep Tube Well Design

Practical Water Solutions for Industries, Buildings & Infrastructure Across Bangladesh

ETP & Water Treatment Plant Design in Bangladesh

Water problems are expensive. A factory running on contaminated water, a building with no proper STP, or an industrial unit failing DoE inspection — these issues cost time, money, and reputation.

At Triangle Engineers Ltd., we help industries and developers sort out their water systems properly. That means designing ETPs that actually pass DoE standards, WTPs that deliver clean water for your process requirements, and deep tube wells that work reliably year after year.

We have worked with factories, pharmaceutical companies, ceramics manufacturers, and large residential projects across Bangladesh. If you have a water challenge, we have most likely solved something similar before.

Our Water Engineering Services


Effluent Treatment Plant (ETP) Design — Bangladesh

If your factory discharges wastewater — whether it's from dyeing, chemical processing, food production, or any other industrial process — you need a DoE-approved ETP before you can legally operate.

We design ETPs from scratch based on your actual discharge volume and effluent characteristics. No copy-paste designs. Every ETP we build is calculated for your specific process chemistry and load.

Industries we serve: Textile & dyeing, pharmaceuticals, ceramics, food processing, rubber, and more.

What we do:

  • Effluent characterization and lab testing
  • ETP process design (physical, chemical, biological treatment stages)
  • DoE documentation and approval support
  • Commissioning and operator training

Water Treatment Plant (WTP) Design

Whether you need drinking water for your workers or process water for production, the quality has to be right.

We design WTPs based on your source water quality — deep tubewell water, surface water, or municipal supply. Common treatments include iron removal, softening, reverse osmosis (RO), and UV disinfection.

What we do:

  • Source water quality testing and analysis
  • Treatment process selection and design
  • Equipment specification and layout
  • Capacity planning for future demand

Sewage Treatment Plant (STP) Design

For residential buildings, commercial complexes, and hospitals, proper sewage treatment is now a requirement — not a choice. We design compact STP systems that handle domestic sewage efficiently and with minimal odor complaints.

Our STP designs are suitable for apartments, hotels, hospitals, and mixed-use buildings across Dhaka and other urban areas.


Deep Tube Well Design & Hydrological Study

Finding good groundwater in Bangladesh is not just about drilling deep. It requires a proper hydrological study — understanding the aquifer layers, water table depth, yield capacity, and water quality at that depth.

We carry out full hydrological assessments and prepare deep tube well designs with pump sizing, casing specifications, and yield calculations. This helps avoid dry wells or contamination problems down the line.


Rainwater Harvesting System Design

Rainwater harvesting is one of the quickest ways to reduce your utility water costs and earn LEED credits at the same time. We design systems for industrial rooftops, commercial buildings, and residential complexes.


Water Storage Design & Smart Metering

Proper reservoir sizing and water distribution planning can reduce energy costs significantly. We also integrate smart metering systems so you can track actual water usage by zone — useful for large factories and building complexes alike.


How We Work

  1. Site Visit & Data Collection — We visit your site, understand your water source, discharge requirements, and usage patterns.
  2. Water Quality Testing — We send samples to the lab and get real data on what you are dealing with.
  3. Conceptual Design & Cost Estimate — We prepare a preliminary design and give you a realistic idea of cost.
  4. Detailed Engineering — Full design drawings, calculations, equipment list, and DoE documents.
  5. Construction Support — We stay involved during installation to make sure the system is built correctly.
  6. Commissioning — We test and hand over the system in working condition.

Why Clients Choose Triangle Engineers for Water Systems in Bangladesh

We know local regulations. DoE compliance in Bangladesh has specific requirements that generic engineering firms often miss. We prepare documentation and design reports that are written for Bangladesh's regulatory process.

We have real project experience. Our portfolio includes ETPs for manufacturing factories like Majesto Ltd, and deep tube wells for international cleints like Tekken Corporation Japan. You can see the kind of work we do before making any commitment.

We calculate, not estimate. Every design we produce is backed by proper calculations — hydraulic, structural, and process. 

We support you through DoE approval. Getting DoE clearance for a new ETP or WTP can be a slow process if the documentation is not right. We prepare the full submission package and guide you through each step.


At Triangle Engineers Ltd. our services include:

  • Water treatment plant (WTP)
  • Effluent treatment plant (ETP)
  • Deep tube well design
  • Sewage Treatment Plant (STP)
  • Rainwater Harvesting System
  • Reverse Osmosis (RO) Plant

Have a Water or ETP Project in Mind?

Talk to our engineers before you finalize anything. A 30-minute discussion can save you from costly design mistakes later.

📧 Email: [email protected] 📞 Phone: +8801325074113📍 Office: House-02, Road-12/A, Sector-10, Uttara, Dhaka-1230

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Our Services:

LEED/Green Building Consultant
01
LEED/Green Building Consultant
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MEP Engineering and Consultancy
02
MEP Engineering and Consultancy
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Fire Fighting Engineering
03
Fire Fighting Engineering
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Building Information Modeling (BIM)
04
Building Information Modeling (BIM)
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Architectural Engineering
05
Architectural Engineering
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Acoustic & Aerodynamic Design for Generator Room
06
Acoustic & Aerodynamic Design for Generator Room
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Energy & Environment 🌱
07
Energy & Environment 🌱
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As Built Drawing (Scan to CAD)
08
As Built Drawing (Scan to CAD)
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Piping Engineering
09
Piping Engineering
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Steam & Condensate Management Engineering
10
Steam & Condensate Management Engineering
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HVAC Engineering
11
HVAC Engineering
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Storage Tank Design & Engineering
12
Storage Tank Design & Engineering
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Pumping System Design & Engineering
13
Pumping System Design & Engineering
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Solar System Design & PV Engineering
14
Solar System Design & PV Engineering
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