Expert DM Water Plant Service Providers in Bangladesh

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Demineralized Water (DM Water): Ensuring Purity with City Water Purifier

Demineralization of water is a critical process that plays a vital role in various industries and applications. City Water Purifier stands as a trusted partner in this kind of water treatment type. With competitive pricing and expert support, we are committed to ensuring the best DM plant. Choose City Water Purifier for all kinds of industrial usage. For DM water plant and to experience the difference in water quality and service excellence contact with the Best DM Water Plant manufacturers in Bangladesh.

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Mobile 1: 01616-701701
Mobile 2: 01781-818182



Shatabdi Center, 292 Inner Circular Road, 3rd Floor, Room No-3k, Fakirapool, Motijheel, Dhaka-1212,  Bangladesh.

we are,

City water Purifier

City Water Purifier is one of the best water plant service providers in Bangladesh. Since 2012 City Water Purifier has been working in every sphere of water purification all over Bangladesh. With 11 years of experience and successful water treatment service, we feel proud of our exclusive customer satisfaction. Your trusted partner in ensuring clean and safe water for households and businesses across Bangladesh. We are an importer of residential, commercial, and industrial Reverse Osmosis (RO) water treatment & other solutions. 

Our DM Plant Process

Demineralization, commonly known as DM, is the process of removing dissolved minerals and salts from water. Minerals and contaminants can have adverse effects on industry processes, machinery, and battery usage. The Industry can be pharmaceuticals, power generation, manufacturing industries, and more.

Ion exchange, in the context of Demineralized water treatment, is the main medium. The impurity ions are absorbed by the resin, which must be renewed on a regular basis to return to its original ionic state. (An ion is an electric-charged atom or group of atoms.) Cations are positively charged ions that are usually metals. Anions are negatively charged ions that are usually non-metals).

In raw water, the following ions are commonly found:


Calcium (Ca2+)
Magnesium (Mg2+)
Sodium (Na+)
Potassium (K+)


  • Chloride (Cl-) 
  • Bicarbonate (HCO3-) 
  • Nitrate (NO3-) 
  • Carbonate (CO32-)

Iron Exchange Resigns

Cation-exchange and anion-exchange resins are the two most common forms of resin. In exchange for impurity cations present in the water, cation exchange resins will release hydrogen (H+) ions or other positively charged ions. In exchange for impurity anions present in the water, anion exchange resins will release hydroxyl (OH-) ions or other negatively charged ions.

The use of ion-exchange technology in the treatment and purification of water. Ion-exchange technology can be applied to water treatment and purification in three ways:

First, cation-exchange resins can be used to soften water through a base exchange.

Second, anion-exchange resins can be used for organic scavenging or nitrate removal.

Third, a combination of both can be used to deionize water by removing virtually all ionic impurities. The purifying process of water deionizers produces extremely high-quality water.


High-purity laboratory and industrial applications demand water that is virtually free of ionic contaminants. This type of water can be made by deionization. The three most common types of deionization are as follows:

  • Two beds with deionization
  • In a mixed bed, deionization
  • Electro Deionization EDI

Two-bed Deionization

The two-bed deionizer consists of two containers. One of which contains a hydrogen (H+) cation-exchange resin and the other of which contains an anion resin in the hydroxyl (OH-) form. All of the cations are exchanged for hydrogen ions as water travels through the cation column. To keep the water electrically balanced, one hydrogen ion is exchanged for every monovalent cation. Such as Na+, and two hydrogen ions are exchanged for every divalent cation, and Ca2+ or Mg2+. When it comes to anion exchange, the same idea applies. After that, the deionized Water passes via the anion column. All of the negatively charged ions are now swapped for hydroxide ions, which mix with the hydrogen ions to produce water (H2O).

Mixed-bed Deionization

Cation-exchange and anion-exchange resins are intimately combined and held in a single pressure vessel in mixed-bed deionizers. A mixed-bed deionizer is equal to a long sequence of two-bed plants due to the full mixing of cation-exchangers and anion-exchangers in a single column. As a result, the water quality produced by a mixed-bed deionizer is significantly superior to that of a two-bed machine. Mixed-bed plants are more sensitive to pollutants in the water supply. They have a more difficult regeneration process. Although being more efficient at purifying the incoming feedwater. After the water has been treated by either a two-bed deionizer or a reverse osmosis unit, mixed-bed deionizers are typically used to ‘polish’ it to greater degrees of purity.

Electro Deionization EDI

Electro Deionization is used in conjunction with reverse osmosis (RO) and other purification equipment. Electro-deionization systems remove ions from aqueous streams. Our high-quality deionization modules produce ultrapure water up to 18.2MW/cm on a continuous basis. EDI can be used on a continuous or intermittent basis.

Trusted Destination

Your trusted destination for cutting-edge water plant services in Bangladesh. In a world where access to clean and safe drinking water is paramount, we are committed to revolutionizing water quality standards across the nation. Our service page is your gateway to discovering how City Water Purifier can be your partner in ensuring pure, contaminant-free water for your home, business, or community.

Dedication to Quality

We understand the critical role that water quality plays in safeguarding health and enhancing the quality of life. Our water plant services are designed to address the unique challenges of Bangladesh’s water landscape, where contamination issues persist. We use state-of-the-art technology, unwavering dedication to quality, and a customer-centric approach to deliver exceptional water purification solutions.

Cutting-Edge Technology

We understand that access to clean water is not a luxury; it’s a fundamental human right. Our process begins with a deep understanding of your unique needs and challenges, ensuring that our solutions are tailored to your specific requirements. From innovative design and installation to cutting-edge technology and ongoing monitoring, our process is designed to elevate water quality and redefine the standards of excellence in the industry.

Water Treatment Plant Design and Installation

Our team of experienced engineers and technicians specializes in designing and installing water treatment plants tailored to your specific requirements. Whether it’s a residential, commercial, or industrial setup, we have the expertise to create a customized solution that ensures clean and safe water.

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Water Plant Maintenance and Repairs

Proper maintenance is key to the longevity and efficiency of water treatment plants. We offer routine maintenance and prompt repair services to keep your plant operating at its best. Our technicians are available 24/7 to address any issues and minimize downtime.

Water Quality Testing and Analysis

Ensuring water quality is paramount. We provide comprehensive water quality testing and analysis services to identify and address any contaminants or issues that may affect the purity and safety of your water supply.

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DM Plant Image

Upgrades and Retrofits

As technology advances, it’s essential to keep your water treatment plant up to date. We offer upgrades and retrofitting services to enhance the performance, efficiency, and environmental sustainability of your existing plant.

Water Plant Consultation

Not sure where to begin with your water treatment needs? Our experts are available for consultations to assess your requirements, recommend the most suitable solutions, and provide guidance throughout the project.

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Customized Solutions

We understand that each client’s water treatment needs are unique. Our ability to develop and implement customized solutions ensures that your water plant meets your specific goals and objectives.

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Demineralized Water Plant Design

Our Demineralized Water Plant in Bangladesh is Appropriate for residents like
Water, Textiles, Pharmaceuticals, Chemicals, Breweries, Swimming Pools, Potable Water, Hospitals, Automobiles, and Fertilizers are all served by boilers.

Plants That Exchange Ions

  • Softener 
  • Industrial DM Plants 
  • Two and Multi-Stage DM Plants 
  • Mix DemineralizerBed
  • Degasifies 
  • Cation Polishe
  • Manual and Automatic Plants 
  • Pharmaceutical Industry
  • Power plants 
  • Oil and gas industries 
  • Chemical and textile industries
Image of Demineralization Plant specification

Our Role of DM Water Systems

   Demineralized water, often referred to as demineralized water, serves diverse purposes, including:

  1. Industrial Applications: Industries rely on DM water to prevent scaling, corrosion, and contamination in their machinery and processes. It ensures the longevity and efficiency of the equipment.
  2. Pharmaceutical Manufacturing: The pharmaceutical industry relies on DM water as a critical ingredient. Demineralized water maintains product quality and meets stringent purity standards.
  3. Power Generation: Power plants use DM water to prevent scaling and corrosion in boilers and cooling systems. Thus enhances operational efficiency.
  4. Laboratory Use: Laboratories require demineralized water for precise experiments and tests. Any impurities present can interfere with the accuracy of results.

Types of Water Plants We Serve

Boiler-feed water treatment plant plays a vital role in power generation by purifying water to prevent scale buildup and corrosion in boilers, ensuring efficient and safe operation in power plants.

Designed to provide clean and safe drinking water to homes, residential water treatment plants use a variety of filtration and purification methods to remove impurities and contaminants.

Different types of Power Plant needs a basic water treatment. Some need DM Plant, Some need RO Plant. Depending on the water quality demands to fulfill the demands water treatment in power points is very crucial.

Industrial waste water treatment plants are tailored to the unique needs of factories and manufacturing facilities, treating and purifying wastewater before it’s released into the environment.

Ion exchange water treatment plant employ ion-exchange resins to remove ions and minerals from water, making it suitable for specific applications like high-purity water production.

Meeting stringent purity standards, pharmaceutical water treatment plants produce ultra-pure water for use in drug manufacturing, ensuring the safety and efficacy of pharmaceutical products.

Drinking water treatment plant are responsible for treating raw water from natural sources to produce safe and potable drinking water for communities, following strict regulatory guidelines.

Raw water treatment plants are the initial step in water treatment, focusing on removing larger impurities and sediment from water before it undergoes further purification processes.

In an era of environmental consciousness, sustainable water treatment plants incorporate eco-friendly practices and technologies to minimize energy consumption and environmental impact.

Swimming pool water treatment plan maintains the quality of pool water by filtering and disinfecting it, ensuring a safe and enjoyable swimming experience.

ETP plants are crucial for industries to treat and manage the disposal of wastewater, helping to minimize environmental pollution.

Floating water treatment plants offer mobility and adaptability for water treatment in remote or variable locations, making them ideal for disaster relief or temporary setups.

Grey water treatment plants recycle and reuse water from sinks, showers, and laundry for non-potable purposes, reducing water wastage and promoting sustainability.

Municipal water treatment plants ensure entire communities have access to safe and clean drinking water, serving as a cornerstone of public health infrastructure.

Industries dealing with oil and petroleum products rely on oily water treatment plants to separate and remove oil from water, meeting environmental regulations.

Iron in water can lead to discoloration and an unpleasant taste. Iron removal plants use various methods, including oxidation and filtration, to eliminate iron from water, ensuring it’s clear and safe for consumption.

Reverse osmosis plant is a highly effective method for purifying water by using a semi-permeable membrane to remove impurities, contaminants, and salts, making it ideal for producing high-purity drinking water and industrial applications.

DM plants use ion-exchange resins to remove all ions, including minerals, from water. This process results in ultra-pure water, often used in industries requiring high water quality.

Household water purifiers come in various forms, including under-sink filters and countertop devices. They provide convenient and effective solutions for improving the taste and quality of tap water at home.

STP plants are crucial for urban areas to treat domestic wastewater, making it safe for discharge into the environment. These plants reduce pollution and promote sanitation in densely populated regions.

Water Booster Pumps are integral for ensuring efficient water distribution in residential, commercial, and industrial settings, maintaining adequate water pressure and supply.

WWTPs are comprehensive facilities designed to treat wastewater from various sources, including industrial, commercial, and residential areas, before returning it safely to the environment.

Contact us for Distilled Water Plant in Bangladesh

City Water Purifier has been in the water treatment industry for more than a decade. Providing the best quality service and spreading more and more. With our competitive price and sales support, our client recommends us for every water purification.

So choose Us for all your water treatment plants including DM Plant. Join us in our mission to elevate the standards of purity and quality in the world of demineralized water. Together, we are redefining the future of clean and safe drinking water for all.

The city water purifier has been a leading water treatment service provider in Bangladesh since 2012.

M1: 01781-818182
M2: 01616-701701

12 Month Treatment Service

Call: 01616-701701

Our Services

House Hold Water purifier Service
Iron Removal Plant
Demineralization Plant (DM)
Reverse Osmosis Plant (RO)
Effluent Treatment Plant (ETP)
Waste Water Treatment Plant (WWTP)
Swimming Pool Water Treatment Plant

Drinking Water Plant (DWP)
Industrial softener
Water Treatment Plant (WTP)
Sewage Water Treatment Plant (STP)
Booster Pump and Pumping systems


Our Charges
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Areas We Cover

Dhaka Division
Chittagong Division
Barisal Division
Rangpur Division
Khulna Division
Rajshahi Division
Mymensingh Division
Sylhet Division