All you need to know
About ZI Group
Pure Water · Trusted Engineering
One of the leading enterprises in South Asia.
2008
Established
600+
Professionals
10+
Certifications
25+
National Awards
Our Sister Companies
Companies Profile
Zi Group provides advanced water, environmental and engineering solutions with a commitment to innovation, quality and sustainable growth.Through a family of specialized sister concerns, we deliver purification systems,...
Green Dot Limited
Green Dot Limited is the flagship water solutions company of Zi Group. It delivers complete purification systems for homes, industries, and institutions — from household purifiers and filter media to full-scale Water Treatment Plants (WTP). With a strong focus on safe drinking water and dependable after-sales support, Green Dot helps communities and businesses access cleaner, healthier water every day.
Water Birds Ltd.
Water Birds Ltd. manufactures durable water storage and distribution products under the Zi brand. Its portfolio includes Zi Tank, Zi HDPE Pipe, and Zi FRP Vessel — engineered for strength, hygiene, and long service life. From residential tanks to industrial piping systems, Water Birds supports reliable water infrastructure across Bangladesh.
ABM Engineering Ltd.
ABM Engineering Ltd. specializes in the precision manufacturing of water purifiers, filter cartridges, and treatment accessories. Combining modern production standards with consistent quality control, the company supplies reliable components and finished systems that keep purification plants and household units performing at their best.
ABM Infra Ltd.
ABM Infra Ltd. focuses on real-estate and infrastructure development built on reliability, modern design, and long-term value. The company delivers projects that support growing urban needs — combining structural quality, practical planning, and a commitment to creating spaces people can trust for years to come.
NS BD Corporation
NS BD Corporation provides advanced water and water-treatment solutions for institutional and industrial clients. Backed by technical expertise and practical field experience, the company designs and supplies systems that improve water quality, process efficiency, and operational reliability for demanding environments.
One Tech Machineries
One Tech Machineries supplies construction, infrastructure, and heavy equipment to global standards. Serving contractors and industrial projects, the company helps clients access dependable machinery and equipment solutions that keep large-scale work moving safely, efficiently, and on schedule.
Trusted names
Our Brands
Global network
International Partnership
Water solutions you can trust.
Water solutions
What we deliver
Our Manufacturing
Zi Water Tank
Zi Water Tank – Magic Green
Zi Water Tank is the only virgin and food-grade tank in the country, crafted with the world’s most advanced food-grade LLDPE and certified with FDA-approved Roto Molding & Blow Molding technology.
Triple Layer Technology:
Outer Layer: Shields against harmful UV rays.
Middle Layer: Keeps water clean, cool, and supports durability.
Inner White Layer: Preserves the natural qualities of stored water.
Superior Features:
Extra-strong and long-lasting structure.
Suitable for storing water, acid, alkali, and various chemicals.
Guarantees safe, healthy, and hygienic water for daily use.
The Zi Vertical Water Tank is the ideal solution for households, industries, and institutions needing safe and long-lasting water storage.
Zi FRP Vessel
Fiber Reinforced Plastic (FRP) pressure vessels have become increasingly popular in industrial water treatment applications due to their excellent corrosion resistance, light-weight construction, and long service life. This catalog presents a range of FRP pressure vessels designed to meet the specific needs of various water treatment processes.
Key Features and Benefits:
Corrosion Resistance: FRP vessels are highly resistant to a wide range of chemicals, making them ideal for water treatment applications involving corrosive substances.
Lightweight Construction: FRP vessels are significantly lighter than traditional steel vessels, reducing trans-
portation and installation costs.
Long Service Life: FRP vessels have a long service life, minimizing maintenance and replacement costs over time.
Versatility: FRP vessels can be customized to meet various water treatment requirements, including filtration,ion exchange, and disinfection.
Our FRP pressure vessels are constructed using high-quality resins and reinforcements, ensuring
superior strength, durability, and chemical resistance. The vessels are typically lined with a gel
coat for added protection and a smooth finish.
Zi HDPE Pipe
We produce High Density Polyethylene (HDPE) pipe which is available in ISO-4427 standard like PN-8, PN-10, PN-12.5 and PN-20 by using 100% virgin HDPE materials ( GRADE PE-10). WBL HDPE pipes have an average life of more than 50 years under normal temperature and pressure. ZI HDPE pipes are available in different sizes 20mm to 500mm. We also produce HDPE pipe as per customer specification.
Special Feature of ZI HDPE Pipes:
• Accurate Thickness and Length
• High Pressure Resistance
• Higher durability and longevity
• Chemical Resistance and UV Protection
• Tough and Good Impact Resistance
Zi Safety Tank
Water Purifier
100 GPD Heron Smart Water Purifier with 8 Stage Multi-Layer Purification System, Advanced RO Technology, Dual Safety UV and Built-in UV-C Tank, Intelligent Automatic Control System, Mineral Enriched Alkaline Feature. This multi-stage purification system removes up to 99.5% of contaminants including sediments, chlorine, heavy metals and dissolved salts, providing safe and delicious drinking water rich in minerals.
Key Features
8-Stage Filtration System: Pre Filter → Sediment Filter → Post Carbon Filter → RO Membrane → Taste & Odor Filter → Mineral Filter → Alkaline Filter → UV Filter—These 8 stages remove impurities, chlorine, heavy metals, dissolved salts, germs, and bacteria from water, ensuring pure and safe drinking water rich in minerals.
UV & UV-C Sterilization Technology: 6W Inline UV Filter destroys germs and bacteria during water flow, and 3W UV-C In-Tank LED Module prevents the reproduction of germs in the water in the storage tank, so the water remains safe for a long time.
100 GPD Capacity: Able to produce a maximum of 100 GPD (Gallons Per Day) of pure water per day, which is sufficient for a family.
Automatic Control System: The system is automatically controlled by Float Switch, Low-pressure Switch, and Solenoid Valve, ensuring safe and efficient operation.
Heron Smart Purifier 8 Stage Purification Process
| SL No | Stages | Work Process | Cartridge replacement schedule |
| 01 | Pre Filter | Dirt and sand removal | Every 2 months |
| 02 | Sediment Filter | Fine particle removal | Every 6 months |
| 03 | Post Carbon Filter | Taste, odor and chlorine removal | Every 6 months |
| 04 | RO Membrane (100 GPD) | Arsenic, Iron, Salt, ions, bacteria and virus removal | Every 12–15 months |
| 05 | UV Filter | Destroying germs and bacteria from water | Dependent on usage conditions |
| 06 | Taste & Odor Filter | Improving the taste of water | Every 6 months |
| 07 | Mineral Filter | Adding essential minerals to water | Every 6 months |
| 08 | Alkaline Filter | Alkaline water by increasing its pH | Every 6 months |
The 100 GPD Heron Smart Filter is a high-quality reverse osmosis filtration system that provides clean and safe drinking water. It is an 8-stage filtration system that can remove up to 99% of contaminants from the water, including bacteria, viruses, and other harmful substances.
Why do you buy Heron Smart from Heronwaterpurifier.com?
Free delivery & installation (Dhaka)
Cash on Delivery
Installation timeline (2 to 3 Days)
1 year brand warranty.
Lifetime support
Hotline number: +8809644800800
Heron Smart Water Purifier Price In Bangladesh
This product can be easily installed and being a portable device, it can be used by everyone from young to old. The lowest price of Heron Smart Water Purifier in Bangladesh is Tk-20,500/= only.
Advantages
8-Stage Advanced Purification
Advanced RO Technology
Smart Indicator System
Digital LED Touch Display
UV Protection
UV-C Sterilization Technology
Mineral+ Alkaline Water
Reduce hardness from water
Easy to use and clean
Upgrade to the Heron Smart RO+UV+Mineral+Alkaline Water Purifier, and enjoy the peace of mind that comes with having access to clean and purified water. Experience the benefits of advanced filtration technology and the assurance of quality from a reputable brand.
| Model | Smart-HSRO-01 |
|---|---|
| Stage | 8 (Pre Filter → Sediment Filter → Post Carbon Filter → RO → T33 → Mineral→ Alkaline → UV ) |
| Capacity | 100 GPD |
| Technology | RO+UV+UV-C |
| Color | White/Black |
| Manufacturer | ABM Engineering Limited |
| Special Features | UV & UV-C Sterilization Technology, Mineral Enriched Alkaline Water |
| Storage Capacity | 12 Liters |
| Installation Type | Counter Top & Wall Mount |
| Item Weight | |
| Dimensions | |
| Power Source | Corded Electric |
| Faucet | Included |
| Warranty Description | 1-Year Limited Manufacturer: warranty upon registration |
| Country of Origin | Bangladesh |
Our Portfolio
Products
No products in this brand.
Solutions We Provide
Our Projects
Desalination Plant · Water Treatment · Filtration Plant · Bangladesh Navy · Defense Infrastructure · Drinking Water Supply · Chattogram · Critical Infrastructure
Desalination and Filtration Plant for Bangladesh Navy, BNS Issa Khan
The Desalination and Filtration Plant for Bangladesh Navy at BNS Issa Khan, Chattogram is a significant water infrastructure project designed to provide a reliable and sustainable supply of clean drinking water for a critical naval facility.The project was undertaken for the Bangladesh Navy at BNS Issa Khan, Chattogram, with the objective of supplying treated drinking water to the ships' company and officers' accommodation area. With a production capacity of 120,000 liters per hour, the facility represents a high-capacity water treatment solution developed to support the operational and daily water requirements of the naval establishment.Advanced Desalination and Water Filtration SolutionThe project combines desalination and advanced water filtration technologies to develop an integrated water treatment solution capable of producing clean water for drinking and other essential requirements.The desalination process supports the treatment of saline or high-mineral-content source water, while the filtration system provides additional treatment to improve overall water quality. Together, these technologies form a comprehensive water treatment system designed to support a dependable and consistent water supply.With a capacity of 120,000 liters per hour, the plant is designed to deliver a substantial volume of treated water and support the continuous water requirements of the facility.Supporting Bangladesh Navy OperationsReliable access to clean water is essential for the daily operation, welfare and readiness of defense facilities. The Desalination and Filtration Plant at BNS Issa Khan was developed to strengthen the water supply infrastructure supporting both the ships' company and officers' accommodation areas.By providing a dedicated water treatment and supply solution, the project contributes to improved infrastructure reliability and supports the operational requirements of the Bangladesh Navy.Engineering for Critical InfrastructureProjects developed for defense establishments require dependable engineering, effective project execution and solutions capable of supporting essential infrastructure requirements.The Desalination and Filtration Plant demonstrates the application of advanced water treatment technologies to meet the demanding requirements of a strategic naval installation. The combination of high-capacity treatment, desalination and filtration provides an integrated approach to sustainable water supply infrastructure.Zi Group's Commitment to Advanced Water SolutionsZi Group is proud to be associated with the development of innovative water treatment and infrastructure solutions for critical facilities across Bangladesh.This project reflects our expertise in delivering integrated solutions across water treatment, desalination, filtration, environmental infrastructure and specialized engineering projects. By supporting the essential water requirements of BNS Issa Khan, the project demonstrates the importance of reliable water infrastructure in maintaining the efficiency and operational readiness of important national institutions.Through innovative technologies, technical expertise and responsible project execution, Zi Group remains committed to delivering sustainable, high-quality and dependable water solutions for public institutions, industries, communities and critical infrastructure across Bangladesh.
View project
Water Supply · Surface Water Reservoir · Piped Water Supply · Water Infrastructure · Emergency Assistance Project · Ukhia · Teknaf · Cox's Bazar · DPHE
Surface Water Reservoir & Piped Water Supply in Ukhia and Teknaf, Cox's Bazar
The Surface Water Reservoir & Piped Water Supply project was undertaken to strengthen water supply infrastructure and improve access to reliable water services in Ukhia and Teknaf, Cox's Bazar.The project was developed under the Emergency Assistance Project for Water Supply & Sanitation at Ukhia and Teknaf in Cox's Bazar District, an important initiative implemented by the Department of Public Health Engineering (DPHE).The project focuses on the development of integrated water infrastructure comprising surface water storage and reservoir facilities together with piped water supply systems. By combining water storage and distribution infrastructure, the project supports a more organized and reliable approach to supplying water to communities within the project area.Integrated Water Storage and Distribution InfrastructureThe project incorporates a Surface Water Reservoir designed to support the storage and management of available water resources. Reliable water storage is an essential component of a sustainable water supply system, helping maintain water availability and support consistent distribution according to community demand.The associated Piped Water Supply System provides the infrastructure required to transfer and distribute water from the storage and treatment facilities to designated service areas.Together, the reservoir and piped network form an integrated water supply solution capable of supporting communities where reliable water infrastructure is particularly important.Supporting Water Supply and Sanitation ServicesAccess to reliable water supply is fundamental to public health, sanitation and community well-being. The project contributes to the broader objectives of strengthening water and sanitation infrastructure in Ukhia and Teknaf, areas that have experienced significant demand for essential public services.Through the development of appropriate water storage and piped distribution infrastructure, the project supports improved water accessibility and strengthens the capacity of the region to respond to growing water supply requirements.Zi Group's Commitment to Sustainable Water SolutionsZi Group is proud to be associated with projects that contribute to the development of essential water and environmental infrastructure across Bangladesh.Through expertise in water treatment, water supply, reservoir systems, environmental infrastructure and integrated engineering solutions, Zi Group remains committed to delivering reliable and sustainable solutions for communities and institutions. The Surface Water Reservoir & Piped Water Supply in Ukhia and Teknaf, Cox's Bazar represents an important contribution toward strengthening essential water supply and sanitation infrastructure and supporting a cleaner, healthier and more sustainable future.
View project
Mobile Water Treatment · Reverse Osmosis · RO Water Treatment · Emergency Water Supply · DPHE · Water Infrastructure · Portable Water Treatment
Mobile Water Treatment Plant for DPHE
The Mobile Water Treatment Plant for the Department of Public Health Engineering (DPHE) was developed to provide a reliable, efficient and flexible solution for treating water in diverse locations across Bangladesh.The project involved the supply of a pickup-mounted Reverse Osmosis (RO) Water Treatment Plant with a treatment capacity of 2,000 liters per hour. Designed for mobility and rapid deployment, the system can be transported to locations where permanent water treatment infrastructure is unavailable, insufficient or temporarily disrupted.The project was executed for the Department of Public Health Engineering (DPHE) and was completed between February 2014 and June 2014.Mobile and Flexible Water Treatment SolutionUnlike conventional fixed treatment facilities, the Mobile Water Treatment Plant is mounted on a pickup vehicle, allowing the complete treatment system to be transported and deployed where clean water is urgently required.This mobile configuration makes the plant suitable for use in remote locations, temporary settlements, emergency response operations, natural disasters and areas with limited water supply infrastructure.The system provides a practical solution for situations where constructing a permanent water treatment plant may not be immediately possible or where a rapid and temporary water treatment solution is required.Reverse Osmosis Water Treatment TechnologyThe plant utilizes Reverse Osmosis (RO) technology as its primary water treatment process. RO is an advanced membrane-based treatment technology used to reduce dissolved contaminants and impurities from source water.With a production capacity of 2,000 liters per hour, the system is designed to produce a substantial quantity of treated water while maintaining the mobility and flexibility required for field deployment.High-Capacity Emergency Water SupportThe 2,000 liters per hour capacity allows the Mobile Water Treatment Plant to support a variety of water supply requirements.The system can be deployed to assist communities facing temporary water shortages, support emergency and disaster response operations, provide water treatment in remote areas, and serve temporary facilities or large gatherings requiring an independent water treatment solution.Its mobility enables the treatment facility to be relocated according to changing operational requirements, making it a valuable addition to emergency water supply infrastructure.Reliable and User-Friendly OperationThe Mobile Water Treatment Plant was designed with operational reliability and ease of use in mind. The system incorporates user-friendly controls and monitoring arrangements to support effective operation by trained personnel.The treatment unit is constructed using durable materials suitable for transportation and operation in varying environmental conditions. Its integrated design combines water treatment technology, mobility and practical engineering to provide a dependable solution for field applications.Supporting Safe Water AccessAccess to clean and safe water is particularly critical during emergencies, natural disasters and situations where conventional water infrastructure is unavailable or disrupted.The successful completion of the Mobile Water Treatment Plant project contributed to the Department of Public Health Engineering's objective of strengthening its capacity to respond to urgent and diverse water supply requirements.The project demonstrates how the combination of advanced water treatment technology and mobile infrastructure can provide practical solutions to critical water supply challenges.Zi Group is proud to be associated with innovative water treatment and infrastructure solutions that contribute to public health, environmental sustainability and community resilience. Through expertise in Reverse Osmosis, water treatment, mobile infrastructure and integrated engineering solutions, Zi Group remains committed to delivering reliable and sustainable solutions for diverse water supply challenges across Bangladesh.
View project
Water Supply · Surface Water Treatment · SWTP · Bakkhali River · Rapid Sand Filtration · Water Infrastructure · Cox's Bazar · Emergency Assistance Project
SWTP for Supporting Water Supply at Bakkhali, Cox's Bazar City
The Surface Water Treatment Plant (SWTP) for Supporting Water Supply at Bakkhali, Cox's Bazar City is an important water infrastructure project developed to strengthen the supply of treated water for Cox's Bazar Municipality and surrounding areas.Implemented under the Emergency Assistance Project (EAP), the project was undertaken by the Department of Public Health Engineering (DPHE) with financial support from the Asian Development Bank (ADB) under Grant No. 0582. The project was constructed through the AWCL-Green Dot Limited Joint Venture, contributing to the development of essential water supply infrastructure in one of Bangladesh's most strategically important and rapidly growing urban areas.Large-Scale Surface Water Treatment CapacityThe project includes a Surface Water Treatment Plant with a capacity of 1,000 m³ per hour, providing significant water treatment capacity to support the growing water demand of Cox's Bazar Municipality.The plant uses water collected from the Bakkhali River as its primary source. A dedicated pontoon-based water intake system has been developed to collect raw surface water and transfer it to the treatment facility.By utilizing a surface water source and integrating an appropriate intake and treatment system, the project provides an important alternative to groundwater-based water supply solutions.Rapid Sand Filtration SystemThe treatment process incorporates a Rapid Sand Filtration System, designed as a key component of the overall surface water treatment process.Raw water collected from the Bakkhali River is transferred through the water intake and treatment infrastructure, where the filtration system supports the removal of suspended particles and other impurities as part of the treatment process.The 1,000 m³/h capacity treatment plant and its associated filtration infrastructure provide a substantial water treatment solution to support municipal water supply requirements.Supporting Cox's Bazar MunicipalityThe primary coverage area of the project is the Municipality area of Cox's Bazar, where increasing population and water demand require sustainable and reliable water supply infrastructure.The SWTP contributes to strengthening the municipal water supply system by creating additional capacity for the treatment of surface water. The project supports the broader objective of improving access to treated water for urban communities and surrounding areas.Integrated Water InfrastructureThe project combines several critical components of a modern surface water supply system, including:Surface water collection from the Bakkhali RiverPontoon-based water intake infrastructureLarge-capacity surface water treatment facilitiesRapid Sand Filtration SystemMunicipal water supply support infrastructureTogether, these components form an integrated system designed to collect, treat and support the distribution of water to the Cox's Bazar Municipality area.Commitment to Sustainable Water InfrastructureReliable access to safe and treated water is essential for public health, urban development and long-term community resilience. The SWTP for Supporting Water Supply at Bakkhali, Cox's Bazar City demonstrates the importance of modern engineering and large-scale water treatment infrastructure in responding to increasing urban water demand.Zi Group is proud to be associated with infrastructure projects that support sustainable water supply and community development. Through our expertise across water treatment, environmental infrastructure, engineering and integrated project solutions, Zi Group remains committed to contributing to a cleaner, healthier and more sustainable Bangladesh.
View project
Waste Management · Solid Waste Management · Fecal Sludge Treatment · FSTP · Municipal Infrastructure · Environmental Infrastructure · Circular Economy · Sustainability
A Sustainable Milestone in Integrated Waste Management in Ajmiriganj Municipality
A Sustainable Milestone in Integrated Waste Management in Ajmiriganj MunicipalityWe are proud to announce that the successful handover of the Solid Waste Management (SWM) and Fecal Sludge Treatment Plant (FSTP) project located in Ajmiriganj Municipality, Habiganj District has been completed.This project is not just an infrastructure; it is a fully integrated municipal waste management system, which will play an effective role in environmental protection, public health development and implementation of a circular economy.Waste Management Plant in Ajmiriganj Municipality - Green Dot LtdModern Model of Integrated Waste ManagementUnder the project, a complete and effective waste management ecosystem has been developed in Ajmiriganj Municipality.Through the Solid Waste Management (SWM) system, household solid waste, including kitchen waste, is being collected and processed in an orderly manner. As a result, the tendency of open dumping of waste will be reduced and the cleanliness of the city will increase significantly.The Fecal Sludge Treatment Plant (FSTP) will help reduce water pollution and public health risks by safely treating human excreta. This is particularly important, as unplanned sanitation systems often cause serious health and environmental problems.The Plastic Sorting Center is converting used plastic waste into recyclable raw materials by separating, crushing and processing it. This is not only reducing plastic pollution, but also creating new opportunities for the recycling industry.Finally, the Composting Bio-Fertilizer Plant is producing environmentally friendly compost fertilizer from post-recycling organic waste, which will be used as a sustainable and safe alternative in agriculture.Partnership and ImplementationThis Integrated Municipal Solid Waste Management Project is implemented by the Department of Public Health Engineering (DPHE) and financed by the Islamic Development Bank (IsDB). This successful implementation is an excellent example of effective government initiatives and international cooperation.Commitment to a Sustainable FutureThe Green Dot family is proud to be a part of such a project aimed at creating clean urbanization, improved quality of life and sustainable Bangladesh. We believe that the technology-based and integrated waste management system will serve as a role model for other municipalities in the country.In the future, we are committed to actively contributing to achieving the Sustainable Development Goals through environmentally friendly solutions, innovative technologies and responsible partnerships.
View project
Events
জেড আই গ্রুপ ডিলার মিট প্রোগ্রাম ২০২৬
View story
Events
এক সাথে গড়ি আগামীর সাফল্য—ডিলার মিট চট্টগ্রাম ২০২৬
View story
Events
গ্রীন ডট লিমিটেড – গেট টুগেদার ২০২৪
View story
Projects
বাংলাদেশ কোস্ট গার্ডের জন্য লজিস্টিকস ও ফ্লিট মেইনটেন্যান্স সুবিধা উন্নয়ন
View story
Events
গ্রীন ডট লিমিটেড – কর্পোরেট ক্রিকেট টুর্নামেন্ট ২০২৪
View story
Events
বিজনেস স্ট্র্যাটেজি মিটিং ২০২৪
View story
Quality Assured
Built for water, proven by standards
From ISO-certified plants to audited field delivery, Zi Group upholds disciplined quality across water purification, storage systems, treatment plants, and engineering projects nationwide.
ISO-Certified Operations
Audited management systems across our manufacturing and engineering companies keep every product and project consistent.
Safe Water Assurance
Food-grade materials, hygienic production, and tested purification standards protect water quality for homes, institutions, and industry.
Trusted Project Delivery
Documented processes from design to commissioning give government and private clients confidence in every Zi Group solution.
Stay Updated
News & Events
গ্রীন ডট লিমিটেডের ডিলার মিট ২০২৫ অনুষ্ঠিত
Video
ঢাকার আন্তর্জাতিক কনভেনশন সিটি বসুন্ধরায় তিনদিনের ওয়াটার এক্সপো ২০২৫
Video
