ETP, WTP & SWTP Solutions — CSD Engineers

ETP, WTP & SWTP Solutions in Bangladesh

Reliable Effluent, Water & Surface Water Treatment for Industry

As Bangladesh industrializes, water pollution and industrial waste management have become pressing concerns. Textile, dyeing, pharmaceutical, and food units generate thousands of liters of effluent (industrial wastewater) every day. Every industry generates different wastewater, so no single treatment process fits every factory. Released untreated, this water harms the environment and public health alike.

This is where CSD Engineers partners with you. We deliver complete, turnkey treatment plant solutions — covering the design, construction, installation, and maintenance of ETP, WTP, and SWTP systems — keeping your factory environmentally safe, legally compliant, and economically sustainable.

📊 CSD Engineers at a Glance

🎯 Your Concern, Our Solution

A few familiar problems drive most client concerns in treatment plant projects — CSD Engineers offers a specific solution for each:

Why a Treatment Plant Is Essential Today (The Problem)

Without a proper treatment plant, an industry faces several real challenges:

• Environmental Impact: Untreated effluent degrades rivers, soil, and groundwater quality.
• Legal Obligation: Operating without Department of Environment (DoE) clearance is difficult.
• Export Compliance: A treatment plant is a prerequisite in international audits (LEED, ZDHC).
• Safe Water Demand: Arsenic-free, safe water is essential for workers and nearby communities.

The Value of a Reliable Treatment Plant (The Importance)

A well-designed industrial water system is a long-term investment that ensures:

• Compliance Support: Assistance in meeting applicable DoE and international standards, enabling uninterrupted production and export.
• Water Recycling: Reuse of treated water to cut water bills and waste.
• Brand Image: Buyer trust as a green, responsible organization.
• Public Health Protection: A safe environment for workers and surrounding communities.

Our Services

Every industry generates different wastewater, and no single treatment process fits every factory. That is why every solution we design starts with laboratory analysis of your actual water. We study each project’s nature and water characteristics to deliver a customized solution. Our three core services are detailed separately below.

Industrial Effluent Treatment — ETP (Effluent Treatment Plant)

Custom effluent management systems for textile, dyeing, washing, tannery, pharma, and chemical industries. Our treatment process is structured stage by stage:

• Screening: Removal of large solid waste.
• Equalization: Balancing flow and water quality.
• Chemical Treatment: Pollutant removal via coagulation and flocculation.
• Biological Treatment: Organic load reduction using MBBR / SBR / ASP technology.
• Secondary Clarification: Sludge separation to recover clarified water.
• Filtration & Disinfection: Final polishing and safe discharge.

Where required, we add a Zero Liquid Discharge (ZLD) system — ensuring no wastewater is discharged outside the plant, achieving 100% water recycling.

ETP Process Flow

Water Treatment Plant — WTP (Potable & Process Water)

• Removal of iron, arsenic, hardness, and bacteria from groundwater and supply water.
• RO (Reverse Osmosis), Softeners, and Iron Removal Plants for boiler feed, process, and drinking water.

Surface Water Treatment — SWTP

Our complete surface water system converts river, pond, or reservoir water into industrial- and potable-grade water:

• Intake System: Safe abstraction of raw water from rivers or reservoirs.
• Coagulation Dose Control: PAC/Alum dosing control for clear, stable water.
• Sedimentation, Filtration & Disinfection: Stage-by-stage purification.
• Sludge Handling System: Safe management of generated sludge.

Industries We Serve

Our wastewater treatment plant designs are customized to each sector’s needs:

• Textile & Dyeing
• Pharmaceuticals
• Food & Beverage
• Feed Mills
• Chemical Industries
• Real Estate & Residential Projects

ETP Plant Cost in Bangladesh (Key Factors)

The cost of an ETP plant is never a fixed figure — it varies with each factory’s needs. The key factors are:

• Daily Effluent Volume (m³/day): The higher the capacity, the larger the plant and cost.
• Pollution Load (BOD/COD/TDS): Heavier pollution requires additional treatment stages.
• Treatment Technology: Conventional biological vs. ZLD/RO — cost varies by technology.
• Automation Level: PLC/SCADA automation raises upfront cost but lowers long-term operating cost.
• Civil Construction & Site Conditions: Tanks, foundation, and land type affect build cost.

For an accurate, transparent budget, we provide a customized quotation after a site survey and water lab test — with no hidden costs.

Design & Execution Process

Every reliable treatment plant starts with laboratory analysis — not guesswork. Because each factory’s wastewater is different, every solution we design begins with a real water-sample test. We follow these stages:

Design Standards & Tools

Our designs are never guesswork — every plant is engineered to recognized national and international codes:

• DoE Guidelines — Department of Environment (Bangladesh) discharge standards.
• BNBC — Civil and structural design per the Bangladesh National Building Code.
• ASTM & AWWA — Water treatment and material-testing standards.
• IS Codes — Indian Standard codes where applicable.

For design and drawings we use AutoCAD, engineering calculation sheets, and hydraulic design tools, making every process step precise and verifiable.

Water Quality Parameters We Ensure

We routinely verify through lab testing whether treated water meets DoE standards. The key parameters:

What We Deliver

We provide a complete, end-to-end solution:

• Detailed Process Flow Diagrams (PFD) and P&ID drawings.
• Complete Civil, Mechanical, and Electrical (MEP) design and construction.
• Equipment supply, installation, and commissioning.
• DoE compliance documentation and treated-water test reports.
• Operator training and long-term O&M (Operation & Maintenance) support.

A durable treatment plant starts with a stable foundation — our Soil Investigation & Testing services ensure reliable foundation design, while our Construction Services handle the complete civil build.

Our Modern Equipment & Technology

For reliable results, we use international-grade equipment and modern technology — high-quality Dosing Pumps, Blowers, MBBR Media, Tube Settlers, Pressure Sand & Carbon Filters, RO Membranes, and automated PLC/SCADA control systems — making plant operation precise, automated, and cost-effective.

Operation & Maintenance (O&M) Services

Building a treatment plant is not the finish line — running and maintaining it correctly ensures its long life. Many clients want help operating the plant, not just building it. So we provide complete Operation & Maintenance (O&M) support:

• Regular preventive maintenance and performance monitoring.
• Operator training and Standard Operating Procedures (SOPs).
• Chemical dosing optimization and troubleshooting.
• Annual Maintenance Contract (AMC) options.

Spare Parts & Consumables

To keep your plant running without interruption, we supply reliable spare parts and consumables:

• Pumps — dosing and transfer.
• Blowers — aeration.
• Diffusers — air diffusers.
• RO Membranes — reverse osmosis membranes.
• MBBR Media — biological media.
• Chemical Dosing — dosing systems and treatment chemicals.

Our Skilled Team & Manpower

A treatment plant is a multidisciplinary engineering effort requiring coordination of civil, mechanical, electrical, and chemical engineering. Led by our Managing Director Engr. Md. Shah Jalal (B.Sc in Civil, DUET, MIEB-28179), our team includes:

• Environmental & Chemical Engineers who design the treatment process.
• Mechanical & Electrical Engineers who manage pumps, blowers, and PLC systems.
• Civil Engineers & Site Supervisors who oversee tank and structure construction.
• Trained Plant Operators & Technicians who ensure uninterrupted operation.

Security, Safety & Quality Control

Since the work involves chemicals and electrical equipment, we never compromise on safety:

• Worker Safety: PPE, gloves, goggles, and safe procedures for chemical handling.
• Plant Safety: Electrical earthing, chemical storage protection, and emergency shutdown systems.
• Quality Assurance: Every parameter (pH, BOD, COD, TSS, TDS) is verified to DoE standards through regular lab testing.

Our Successful Projects

Over the past decade, CSD Engineers has implemented treatment plants across many industries in Bangladesh. A few selected projects, by category:

Textile & Washing Industry:

Food & Feed Industry:

Industrial Water Infrastructure:

Why Choose CSD Engineers?

🔗 Related Engineering Services

Get our other specialized services from the same experienced team — a complete solution under one roof:

• Construction Company in Bangladesh | Industrial, Commercial & Residential Construction Services | CSD Engineers
• Architectural & Structural Design in Bangladesh | RCC & Steel Building Design, BNBC-Compliant Structural Engineering | CSD Engineers
• Mechanical Design & Machine Installation — CSD Engineers
• Fire Protection System Design & Installation — CSD Engineers
• Soil Investigation & Testing Services — CSD Engineers

Frequently Asked Questions (ETP/WTP FAQ)

1. How long does it take to build an ETP?

Depending on the plant’s capacity and complexity, an ETP typically takes 3 to 6 months from design to commissioning. Smaller WTPs can be completed comparatively faster.

2. What does the cost of an ETP depend on?

The cost depends on the daily effluent volume (m³/day), the pollution load (BOD/COD), the required treatment technology (Biological/ZLD), and the level of automation. We provide a custom quotation after a site survey.

3. Is an ETP mandatory for the Department of Environment (DoE)?

Yes. In Bangladesh, a functional ETP is mandatory for pollution-generating (Red Category) industries to obtain and renew DoE clearance.

4. Can treated water be reused?

Yes. With proper design and ZLD/RO technology, treated water can be reused for floor cleaning, gardening, or in the process — significantly reducing water costs.

5. What is the difference between ETP, WTP, and SWTP?

An ETP treats polluted industrial effluent; a WTP makes groundwater/supply water usable; and an SWTP converts surface water from rivers or ponds into industrial- and potable-grade water.

6. What is the difference between MBBR and SBR?

MBBR (Moving Bed Biofilm Reactor) is compact and ideal for continuous treatment, while SBR (Sequencing Batch Reactor) treats water in batches with high-quality output. We recommend the right technology based on your space, load, and budget.

7. How many operators and how much power does an ETP need?

A medium ETP typically needs 1–3 trained operators. Power consumption depends on blowers, pumps, and automation load — proper design and energy optimization can reduce it significantly.

8. How is the generated sludge managed?

Sludge is dewatered using a thickener and filter press or sludge drying bed, then disposed of safely in line with DoE guidelines.

9. What is the annual maintenance cost (AMC)?

AMC depends on plant capacity, technology, and chemical usage. We offer customized annual maintenance packages for each plant.

10. Who needs a Zero Liquid Discharge (ZLD) system?

ZLD is most suitable for industries with strict discharge limits, high water costs, or a need for 100% recycling — such as textile and dyeing units.

11. How does a DoE inspection work?

DoE officers inspect the plant, collect treated-water samples, and verify parameters (pH, BOD, COD, TSS). We help keep your compliance documentation and test reports ready.

Contact Us Today to Make Your Factory Compliant & Eco-Friendly

Protecting the environment is not just a legal obligation — it is the long-term security of your business. To get the right solution based on your industry’s water type and waste volume, sit down with our expert team today.

Start planning your treatment plant today to build a safe, green, and compliant factory.