Design, Drawing & Technical Consultation
ESRD provides comprehensive engineering design, detailed drawings, and expert technical consultation for water, wastewater, and waste treatment systems across industrial, commercial, institutional, and infrastructure projects. Our services support clients from concept development through detailed engineering and implementation support, ensuring technically sound, cost-effective, and regulation-compliant solutions. All designs are prepared in accordance with DoE (Bangladesh), BEZA, BNBC, and relevant international engineering standards and best practices.
Water Treatment Plant (WTP) Design & Consultation
We design water treatment systems based on raw water quality, intended use, and regulatory standards.
Scope Includes:
Raw water characterization and treatability analysis
Intake and pretreatment system design
Coagulation–flocculation–sedimentation systems
Rapid/slow sand filtration, multimedia filtration
Iron removal, softening, and disinfection systems
UF, RO, DM, and polishing systems
Treated water storage and distribution networks
Outcome: Reliable and efficient production of potable and process water.
Effluent Treatment Plant (ETP) Design & Consultation
We provide complete design solutions for industrial wastewater treatment.
Scope Includes:
Influent characterization and load calculation
Physico-chemical treatment design
Biological treatment (ASP, MBBR, MBR, SBR, Anoxic/Anaerobic)
Tertiary treatment and polishing
Sludge handling and disposal systems
Treated water reuse planning
Outcome: Compliance with discharge standards and optimized operating cost.
Sewage Treatment Plant (STP) Design & Consultation
We design STPs for residential, commercial, institutional, and mixed-use developments.
Scope Includes:
Hydraulic and organic load analysis
Biological process selection
Compact and modular STP solutions
Odor control and disinfection systems
Treated water reuse for landscaping and flushing
Outcome: Sustainable domestic wastewater management.
Zero Liquid Discharge (ZLD) System Design
We develop integrated ZLD systems for industries requiring maximum water recovery.
Scope Includes:
High-recovery RO systems
Reject management strategy
Evaporation and crystallization systems
Condensate recovery and reuse
Sludge and salt handling
Outcome: Maximum water reuse and zero wastewater discharge.
Solid, Hazardous Waste & Sludge Management Design
We design safe and compliant waste management systems.
Scope Includes:
Waste segregation and storage facilities
Sludge thickening and dewatering systems
Hazardous waste containment and handling
Temporary storage and disposal planning
Outcome: Environmentally safe waste handling and disposal.
Engineering Drawings & Documentation
We prepare complete design documentation including:
Process Flow Diagram (PFD)
Piping & Instrumentation Diagram (P&ID)
General Arrangement (GA) drawings
Civil tank and foundation drawings
Mechanical equipment layout
Electrical and instrumentation layouts
BOQ, datasheets, and specifications
Design calculations and hydraulic profiles
Technical Consultation & Advisory
Technology selection and optimization
Capacity assessment and plant upgrading
Value engineering and cost optimization
Authority submission support
Construction phase technical guidance
Commissioning and troubleshooting support