Close
Contact us
Messenger
Mail
Phone
Our Technology for Your Ways

Chandwin Engineering's innovative technologies for water treatment and supply

Whether you need help with the specific wastewater treatment task of a small municipality or a large-scale plant investment, we can help you through the whole life cycle - from preliminary studies to operational support
OUR TECHNOLOGY FOR YOUR WAYS
Chandwin Engineering's innovative technologies for water treatment and supply
Whether you need help with the specific wastewater treatment task of a small municipality or a large-scale plant investment, we can help you through the whole life cycle - from preliminary studies to operational support
Biological treatment and water treatment for industrial and municipal wastewater

The simplicity of reliable technology

Chemical-free self-treatment technologies used to provide a continuous process of water recovery for reuse
Existing methods of treatment and conditioning of recycled water involve the use of expensive reagents, complex technological installations and physical and chemical influences to remove unwanted components of waste water from both technological and ecological points of view, which significantly increases the cost of treatment and is not always technologically justified.
To a large extent, the ineffectiveness of the schemes and methods used in practice for the treatment of the water phase with a complex composition is due to the lack of a clear understanding of the required depth of treatment, as well as the mechanisms and regularities of the processes, which, in fact, is due mainly to an empirical approach to the choice of the technological process to bring the composition of recycled water to a technologically acceptable level.

Traditional solutions and conventional thinking are not enough to meet future demand. That's why Chandwin Engineering is committed to providing advanced, cost-effective technologies and solutions that help our customers achieve their goals, while helping them manage water risks and successfully cope in a world where water is an increasingly scarce commodity.
Existing methods of treatment and conditioning of recycled water involve the use of expensive reagents, complex technological installations and physical and chemical influences to remove unwanted components of waste water from both technological and ecological points of view, which significantly increases the cost of treatment and is not always technologically justified.
To a large extent, the ineffectiveness of the schemes and methods used in practice for the treatment of the water phase with a complex composition is due to the lack of a clear understanding of the required depth of treatment, as well as the mechanisms and regularities of the processes, which, in fact, is due mainly to an empirical approach to the choice of the technological process to bring the composition of recycled water to a technologically acceptable level.
Traditional solutions and traditional thinking are not enough to meet future demand
That's why Chandwin Engineering is committed to providing advanced, cost-effective technologies and solutions that help our customers achieve their goals while helping them manage water risks and successfully cope in a world where water is an increasingly scarce commodity.
What should the solutions be?

To ensure that water is safe, reliable and available now and for future generations

Here are a few highlights:
Сheapness of the products
The cost of obtaining clean water with Chandwin Engineering technology is significantly lower than that of reagent and membrane purification methods. By minimising the customer's manufacturing, installation, commissioning and operating costs, they represent a highly economical solution.
Self-sufficiency
The organisation of technological schemes for water treatment according to the "build and forget" self-sufficiency principle. Our treatment plants have a service life of up to 50 years. Our technology provides added value to the customer through automation, designed to minimise manual intervention and operating
Scalability
The process schemes can operate in series or parallel modes for flexibility in terms of effluent quality and flow rate. Which also allows for rapid changes or scaling of treatment volumes from small municipalities to large cities, as required.
Consistent quality
Specially designed self-cleaning filters with electro-ionising silumin pre-filters, which due to their unique shape, material and extremely high active surface area have been proven to ensure consistent water quality compliance in the most difficult industrial wastewaters.
Comprehensive integrated solutions
Chandwin Engineering's chemical-free self-cleaning technologies used to provide a continuous process of water recovery for reuse
Comprehensive integrated solutions
Chandwin Engineering's chemical-free self-cleaning technologies used to provide a continuous process of water recovery for reuse
Electrocoagulation water treatment

Technology for the deep and effective treatment of natural and waste water, including industrial wastewater

Special design electric reactors-electrocoagulators with plate metal electrodes and a "gas" layer of chlorine dioxide are used. Reagent-free cleaning, disinfection and activation of water. Environmentally friendly oxidation of organic impurities, surfactants, surfactants and dyes is used without the formation of toxic chloramines and mutagenic organochlorine radicals. Solutions of ionized iron / aluminum coagulant do not contain salt "tails" of sulfates, chlorides, phosphates, etc.
Biological treatment and water treatment for industrial and municipal wastewater
Specially designed two-chamber electrolysers with inert membranes and electrochemically insoluble electrodes.
Electrocorrectors Eh, pH, rH of water with inert membranes and plate electrodes with low-voltage direct current sources or on solar panels.
Flotation separation and oxidation

Reliable complex wastewater treatment without the use of "harsh" chemicals

Reagent-free water purification at a low cost by flotation and oxidation of organic impurities of water and flotation sludge, disinfection and activation of treated water. Flotation separation and environmentally friendly oxidation of organic impurities, surfactants, surfactants and dyes contained in water and flotation sludge are used without the formation of toxic chloramines and mutagenic organochlorine radicals. Electrocorrection of Eh, pH, rH of water and aerosols. Prevention of toxic waste formation in water in the form of salt "tailings" of sulfates, chlorides and phosphates.
Reliable complex wastewater treatment without the use of "harsh" chemicals
Electroflotation-electrocoagulation water purification with an activation effect on the processes of purification of ionized air
Electroflotators-electric reactors-electrocoagulators with a "gas" layer of chlorine dioxide and ionized air.
Electric reactors with electrically soluble plate and inert electrodes.
Advanced ion exchange technology

For wastewater treatment, industrial demineralisation and ultrapure water production

  • Water purification from polyphosphates and biogenic compounds of nitrogen and phosphorus;
  • Purification of brackish water with electroconcentration of ions and correction of Еh, pH, rH (salt content in the source water up to 3.5 ppm);
  • Reagent-free activation and complex water disinfection at a low cost of the process;
  • Long-term conservation of tap (drinking) water; And also for the selective extraction of impurities
Steel and cast iron shavings are used, which are electro-ionized by internal electrolysis. Solutions of ionized iron coagulant do not contain salt "tails" of sulfates, chlorides, phosphates, etc.
For wastewater treatment, industrial demineralisation and ultrapure water production
Electrocoagulators shaving with electroionization of iron (aluminum) shavings.
Electrocoagulators-reactors rotating drum shavings.
Electrically ionized silver and chlorine dioxide metering generators.
Self-cleaning filters with prefilters made of electro-ionized aluminum (silumin) shavings.
Column-type electric reactors-filters-electroflotators.
Filters with column (tubular) type electric reactors and electroflotters in the overfilter space.
Flocculation technology with organic polymeric high-molecular substances

For cleaning in the biotech, petroleum, pulp and paper and mining industries.

Flocculation water purification (also for enhancing the effect of coagulants) using flocculants based on PHMG with the activation of the flocculation process with chlorine dioxide. Compared to traditional filtration technologies, in which a mesh or filter is used to remove particles, coalescers-pneumatic floatators-filters are a special device design with column (tubular) type electric reactors and electroflotators in the above-filter space.
Wastewater purification in the biotech, petroleum, pulp and paper and mining industries.
Clarifiers with fluid bed filtration
Hydrocyclones and clarifiers with tangential rotation of water
Thin-layer sedimentation tanks
Pressure flotation devices (block-modular installations) with activation of the pressure flotation process with chlorine dioxide.
Vertical settling tanks-filters with activation of the water treatment process in vertical settling tanks-filters by chlorine dioxide.
electroflotation method of cleaning and post-treatment

Technology of deep purification of waste chromium-containing, acid-alkaline waters from heavy metal ions

Compared to traditional filtration technologies, which use a mesh or filter to remove particles, coalescers-pneumatic floatators-filters are devices of a special design with electric column-type (tubular) reactors and electroflotators in the above-filter space.
In electroflotation technology Chandwin Engineering
The water solution to be cleaned is passed in the field between soluble electrodes, on the surface of which gas bubbles are released. In this case, the electroflotation process is accompanied by electrocoagulation, which increases the efficiency of flotation.
Technology of deep purification of waste chromium-containing, acid-alkaline waters from heavy metal ions
Pneumatic flotation coalescer-filters with movable heavy load
Pneumatic flotation coalescers-filters with heavy stationary filtration loading
Coalescers-pneumatic flotation devices-filters with electro-ionized aluminum-containing bulk metal loading
Pneumatic flotation coagulators-filters with floating filtration loading
Pneumatic flotation coagulators-filters-clarifiers
Coagulators-pneumatic flotation devices-filters with electroflotators in the above-filter space
Membrane bioreactor technology

Our technology combines two wastewater treatment methods: biological and membrane-based

Bioreactors-aerotanks, a reliable, highly efficient technology for biological wastewater treatment from organic matter, nitrogen, phosphorus, bacteria and viruses. This innovative technology provides a number of advantages over the traditional activated sludge wastewater treatment method and introduces a separation process that uses a semi-permeable membrane and cross-flow filtration principles. One of these benefits is higher biomass removal in the settling unit and improved water quality.
Our technology combines two wastewater treatment methods: biological and membrane-based
Bioreactors-aerotanks with microbubble aeration and mixing of water with air.
Bioreactors-aerotanks with jet aeration and mixing of water with air and water jets.
Bioreactors-aerotanks with vacuum-ejection aeration and mixing using column installations.
Bioreactors-aerotanks with mine saturators and with jet aeration and stirring.
Self-cleaning aerotank bioreactors with movable (dynamic) heavy filtration loading.
Mine bioreactors with jet aeration and mixing with activation of the biological water treatment process with chlorine dioxide.
Filtration and regeneration BIOPLATO hydroponic type

A technology trusted the world over by municipalities and industries that need clean and healthy water at an inexpensive price

When large volumes (towns and cities) of domestic, industrial wastewater and surface runoff need to be treated, biological treatment, on filtering bioplate plants, is the most competitive option due to their simplicity and low cost.
Their advantage is that they require practically no electricity and chemical consumption, significant maintenance and provide quality water treatment from a wide range of organic and mineral pollutants.
A technology trusted the world over by municipalities and industries that need clean and healthy water at an inexpensive price
Membrane-free desalination of brackish water on filtration and regeneration BIOPLATO hydroponic type and self-cleaning hydro-robots-filters.
Water purification by higher aquatic plants and a complex of technologies, including self-cleaning filters, clarifiers, flotation devices, dispensers of bioreagents-enzymes and blowers.
Water purification by floating higher aquatic plants in multi-tiered phytoconstructions with artificial lighting.
Water purification by higher aquatic plants in feed channels and bucket water intakes from surface water supply sources.
Water purification with natural suspensions of clinoptilolite (zeolite), tuff, bentonite, brucite, etc.
Water purification with natural suspensions of clinoptilolite (zeolite), tuff, bentonite, brucite, etc.
Hydrodynamic cavitation technology

Vacuum-cavitation dissolution of liquid and solid carbon-hydrogen compounds

Technological schemes of wastewater treatment from iron and aluminum hydroxides, silicic acid, organic substances, calcium and magnesium carbonates, bioorganisms and products of their vital activity and metabolism, as well as water contaminated with oil products using the thermodynamic effects of hydrodynamic cavitation with a constantly changing qualitative composition of wastewater.
Vacuum-cavitation cleaning provides the highest level of filtration.
Vacuum-cavitation dissolution of liquid and solid carbon-hydrogen compounds
Vacuum-cavitation purification and activation of water in vertical column reactors with activation of the water purification process with chlorine dioxide.
Vacuum-cavitation treatment and activation of water in vertical column reactors in a block with water deaerators.
Vacuum-cavitation treatment and activation of water in vertical column reactors in a block with ionized air generators.
Vacuum-cavitation treatment and activation of water in vertical column reactors in a block with ozone generators.
Vacuum-cavitation treatment and activation of water in vertical column reactors in a block with dispensers for bioreagents-enzymes.
Vacuum-cavitation treatment and activation of water in column reactors in a block with catholyte generators.
An effective way to remove organic impurities from water

Bioreagents-enzymes

Bioreagents-enzymes that degrade complex organic pollutants to carbon dioxide and environmentally friendly products of microbial metabolism. Biological water treatment using a patented technology of mother liquors and ready-to-use suspensions (bio-powders) and activation of the water treatment process with EM preparations. Thanks to this, the processing time of wastewater is reduced, unpleasant odours are eliminated (anaerobic process is eliminated), and the formation of toxic gases such as ammonia, hydrogen sulphide, and methane is prevented.
Bioreagents-enzymes
Biological water purification using effective microorganisms (EM) and probiotic enzymes using mother liquors and ready-made suspensions (biopowder) and higher aquatic plants-macrophytes (in a single block of filtration and regeneration bioplato hydroponic type) and activation of the water purification process with mother solutions of effective microorganisms.
Biological water purification using effective microorganisms (EM) and probiotics-enzymes using mother solutions and ready-made suspensions (biopowder), as well as higher aquatic plants-macrophytes and floating VVR (in a single block of filtration and regeneration bioplato of the hydroponic type FRBGT) and mobile phytoconstructions container type and activation of the water purification process by effective microorganisms in mobile units of FRBHT with chlorine dioxide synthesized at the place of application.
Every drop of water matters
Wastewater management is at the heart of environmental protection
Chandwin Engineering supports all phases of the water cycle, from laboratory work through to pilot plant studies and subsequent industrial scale-up. To this end, we work to develop advanced desalination, purification, reuse and distribution technologies.

  • Our treatment methodologies are the industry's technological benchmark, evaluated in pilot plants, where R&D technologies are demonstrated and tested before large-scale deployment.
  • Our demonstration plants treat real water, ensuring that the results obtained are fully representative and thereby enable the optimal performance of the technologies developed to be demonstrated.
In-depth knowledge of treatment processes is one comprehensive concept that has helped our customers significantly increase the efficiency, quality and reliability of their treatment plants. This can often be achieved without major investments. The potential for improvement can be found in all critical factors such as the technical process itself, the management system and the working methods.
In-depth knowledge of treatment processes is one comprehensive concept that has helped our customers significantly improve the efficiency, quality and reliability of their treatment plants.
This can often be achieved without major investment. The potential for improvement can be found in all critical factors, such as the technical process itself, the management system and working methods.
We are here to help!
Whatever your water problems are, we are ready to share our vision, experience and solutions so that you can move forward.
We have built up an impeccable reputation over decades of work. We are trusted by small firms and large companies alike.
© 2022 Chandwin Engineering PTE. Ltd.
+790 1706 0704 (Eng; Ru) / info@purewater.pw / 183 Jalan Pelikat #b1-121 Singapore 537643
The art of pure water® is a registered trademark of Chandwin Engineering PTE. Ltd, Singapore. Other product names used herein are for identification purposes only and might be trademarks of their respective companies. We disclaim any and all rights to those marks. Information about prices and services presented on the website is indicative and does not constitute a public offer. Chandwin Engineering's personal data processing policy.