Drinking Water

KWI is committed to supplying quality drinking water to communities across the world. KWI technologies combined with our expertise and innovation have enabled municipalities to reliably achieve high drinking water standards.

Our Services

KWI offers our services to communities to supply healthy, high-quality drinking water to support changing water characteristics, to support population growth and to empower community development.

  • Water Supply

  • Engineering, Civil Works, Operation and Maintenance

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Problem-Oriented Solutions

Algae Blooming

Algae blooming is an inevitable problem when waterbodies are continuously exposed to nutrients and sunlight. Existing sedimentation tanks are not capable of removing algae. Due to photosynthesis algae cells float to the surface during the day and settle to the bottom of the tank at night.

Recommended Solution: Klaricell

For Drinking Water and Algae Removal

Key Features and Benefits

  • Stable effluent water quality and turbidity less than 0.5 NTU

  • Highly efficient algae removal: up to 98%

  • High sludge concentration (max 5% of solid content) with low chemical consumption

  • Unaffected by photosynthesis

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Recommended Solution: Flotofilter

For Drinking Water and Algae Removal

Existing sedimentation tanks can be retrofitted for flotofilters, by keeping and reusing the concrete structure.

  • Lower capital cost than conventional settlement clarifiers

  • Hydraulic load: up to 10 m3/(m2·h)

  • Equipped with surface scraper, sludge concentration up to 3%, which could be dewatered directly

  • DAF system combined with filtration

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Most Requested Solutions

Along with our standard range of products, we can offer our customers and partners a full turnkey solution, integrating world-class products into a complete flowsheet solution.

Physical Chemical Treatments

We design our physical chemical treatment packages to significantly reduce the pollutant loads for our clients in the pharmaceutical and chemical industry.

Lamella Clarifiers

KWI lamella clarifiers are an easy upgrade from existing, overloaded clarifiers with no room for expansion. Their key features include increased sedimentation surface and system capacity. We offer flexible mounting styles for different clarifier designs.

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The KWI Sedilamella is ideal for upgrading existing overload clarifiers, which have no room for further expansion. KWI's solution combines the advantages of a parallel plate separator and a circular clarifier.

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Separation Technologies

KWI offers high quality separation technologies including traditional sand filtration and ceramic UF membranes.

Sand Filter

KWI is experienced in the design and manufacturing of medium- and large-scale horizontal dual media filters such as pressurised filters, V-type filters and variable pore filters to remove total suspended solids and silt before the reverse osmosis.

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Ceramic UF Membrane

KWI offers high quality ceramic UF membranes. The ceramic material offers a unique resistance to abrasive water. The water quality reached after UF treatment is excellent for water reuse.

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Biological Treatments

Biological treatments reduce the organic and nutrient content of the water with proven processes such as BAF, denitrification filters, and MBR equipped with ceramic membranes.


BAF combines biological oxidation and filtration together in one structure, eliminating the need for a secondary sedimentation.

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Denitrification Filters

Under anaerobic conditions, denitrification filters are widely used for TN removal as either secondary or tertiary treatment for plants to reach rising standards. 

Deep Bed Denitrification Filter

V-type Denitrification Filter

Ceramic MBR

Ceramic MBR can treat nitrogen, phosphate with higher processing efficiency while producing less sludge.

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Biological Treatments


Moving Bed Biological Reactor process is a biological process where the biomass is developed on a moving carrier. The supports have a density close to the density of water and should offer the largest possible surface area. The process is usually combined with dissolved air floatation process for sludge clarification.

  • Increase the available quantity of dry volatile matter in a limited volume

  • Reduce the biological tank volume to 70 %

  • Improve biomass efficiency by creating a film instead of a traditional biomass bloc, in which a portion of the dry volatile matter is not available

  • Lower polymer consumption compared to Biofloat because the free biomass is around 1.5 to 2 g/l

  • Smaller flotation unit (based on hydraulic flow)

  • Avoid foam

  • Self-cleaning

Sludge Management

KWI's well-crafted sludge management system offers DAF for sludge thickening and thin film dryers along with ancilliary equipment for both wet and dry sludge management. Our products are optimized to help clients reduce energy consumption and operational costs.

Sludge Thickening by DAF

KWI manufactures DAF units specially designed for biological sludge thickening with high organic content.

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Thin Film Dryer

The thin film dryer is a versatile patented technology that can achieve waste reduction and other resource requirements surrounding waste management.

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Wet Sludge Management

KWI wet sludge management is designed for 60%-80% moisture level sludge and includes auxiliary equipment such as sludge silo, hydraulic sliding framework and wet sludge pumps.

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Dry Sludge Management

KWI dry sludge management generally manages <60% moisture level sludge and includes auxiliary equipment such as Z-type bucket elevator, dry sludge silo, anti-cavitation sludge unloading device, and closed spiral for dry sludge transporatation.

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More Solutions

Activated Carbon Filter

  • Remove low molecular organic matter and chlorine

  • Reduce odor and color

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Chemical Dosing System

  • Manual and auto-operation modes are available

  • Dosing models available from 0.025 l/h to 3000 l/h

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More Solutions


  • Highly anti-corrosive

  • Ultra-high strength and long length flights

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  • Hydraulically and energetically optimized for better applications

  • Designed with drive units for easy installations

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What we do

We design our process packages, proposing a wide range of customizable solutions to match market challenges.

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News from KWI International

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Pulp and Paper

Case Study

Bleached HTMM for Office Paper Production

Location: Russia

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KWI offers its high level of expertise and innovative technologies in solid- liquid separation solutions to our clients.

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