RAJUK Requires STP for Buildings
(STP)RAJUK Requires STP for Buildings on 5 Katha or More
Ensure Compliance with Advanced Japanese Johkasou Technology
Planning a new residential or commercial project on 5 katha or more? Under the latest RAJUK directive, installing a Sewage Treatment Plant (STP) is now mandatory for new developments.
Daiki Axis Bangladesh helps landowners and developers meet this requirement with advanced Japanese Johkasou STP systems—compact, efficient, and designed for sustainable wastewater treatment.
Build withConfidence
Build inCompliance
A compliant wastewater treatment system is no longer just an environmental responsibility—it is a regulatory requirement.
Daiki Axis Bangladesh provides complete STP solutions that help developers:
🏙 Meet RAJUK & BNBC requirements
🏭 Protect the environment
🏢 Improve project sustainability
🏫 Increase long-term property value
🕌 Reuse treated water for non-potable applications
What weserved
STP Design & Engineering
Custom-designed solutions tailored to your project requirements.
Johkasou Supply & Installation
Advanced Japanese treatment systems installed by experienced professionals.
Commissioning & Training
Ensuring optimal performance from day one.
Operation & Maintenance (O&M)
Regular inspection, servicing, and performance monitoring.
Regulatory & DoE Support
Technical assistance for environmental compliance and documentation.
How Johkasou Works
1
Separation Box
Separates solids by gravity; prevents sludge agitation downstream.
2
Separation & Sedimentation Chamber
Removes and stores debris from water; desludge every 6–12 months.
3
Anaerobic Chamber
Filter media hosts anaerobic bacteria to decompose organic matter.
4
Moving Bed Chamber
Mesh media hosts aerobic bacteria to decompose organic matter.
5
Sedimentation Chamber
Settles sludge by gravity for clear water; sludge returns via airlift pump.
6
Disinfection Chamber
Disinfects water before discharge to water bodies.
FlexibleInstallation
Benefits ofJohkasou
A Johkasou STP is a compact and efficient wastewater treatment system that saves space, reduces pollution, uses less energy, and produces high-quality treated water for safe discharge or reuse. It is a reliable, eco-friendly, and cost-effective solution for modern wastewater management.
Our Products
Capsule Type STP
Capsule type Johkasou model is designed specifically for domestic sewage and wastewater treatment, addressing the need to treat wastewater effectively.
Main Material: FRP
Cylindrical Type STP
Cylindrical Type Johkasou is designed for industrial wastewater treatment, handling high loads efficiently with quick processing and low maintenance needs.
Main Material: FRP
Grease Trap
A grease trap separates fats, oils, and grease (10–15% less dense than water) by allowing them to float on the surface for easy removal.
Main Material: FRP
Our Projects
STP at Aligonj Govt. Housing (Zone-2)
Capacity: 150 m3/day
STP at Govt. Officers Residential Building (CGS Colony)
Capacity: 450 m3/day
STP at Mayor House
Capacity: 10 m3/day
STP at Paikpara Govt. Officers Building
Capacity: 1050 m3/day
OUR WORK IN ACTION
Across residential, commercial, and public infrastructure projects, Daiki Bangladesh is helping communities treat and reuse water responsibly — protecting resources and building a sustainable future.
Industries
Institutions
Residential
Commercial Complex
Office
Hotel
Warehouse
Farmhouse
Park
Hospital
Why Choose Daiki Axis forSTP
Daiki Axis is a global leader in environmental technology with 65+ years of Japanese expertise and decades of experience delivering sustainable wastewater treatment solutions worldwide.
Japanese Technology
Reliable, energy-efficient, and environmentally responsible wastewater treatment systems.
Compact, Space-Saving Designs
Engineered for Bangladesh’s limited urban land availability.
Low Maintenance, Long-Term Durability
Outstanding lifespan with minimal operation cost.
High Treatment Efficiency
Consistently meets and exceeds DoE environmental standards
Decentralized Johkasou Solutions
Ideal for apartments, hotels, resorts, factories, and communities.
Trusted Nationwide
Adopted by leading developers, industries, and institutions across Bangladesh.
Frequently AskedQuestions
Common Questions About Getting Support
Is an STP mandatory for new buildings?
Yes. According to the latest RAJUK directive, new developments on plots measuring 5 katha or more are required to install an STP.
What is Johkasou?
Yes. According to the latest RAJUK directive, new developments on plots measuring 5 katha or more are required to install an STP.
Can treated water be reused?
Yes. According to the latest RAJUK directive, new developments on plots measuring 5 katha or more are required to install an STP.
Does Daiki Axis provide maintenance?
Yes. According to the latest RAJUK directive, new developments on plots measuring 5 katha or more are required to install an STP.