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INDUSTRIAL & COMMERCIAL WATER TREATMENT

BWT offers specific solutions for a wide variety of industries

Market leaders in water treatment for industrial and commercial systems since 1965

Domestic & Commercial Property

Process Water & Effluent Water

Mining & Industrial

Borehole & Well Water

BWT Assures You Of:

Incomparable honest advice to save you millions from in-house, qualified, specialist engineers. With a large african footprint, our modular water treatment systems are ‘plug and play’ for a fast set up to clean water.

BWT Africa will advise you, from the initial water analysis stage through, plant design and construction to commissioning and maintenance of your water treatment plant, based on your specific needs. All of our processes are carried out with maximum efficiency and commitment and implement all the legal, technical and commercial safeguards.

INDUSTRY SOLUTIONS

Owing to its quality, water that comes straight from the raw water source can rarely be directly used for drinking , commercial, production and manufacturing operations. Treatment of effluent or process water provides an opportunity to recover this valuable resource for reuse within operations.

Our research and development centres all over the world are therefore working on developing innovative technologies and processes for treating drinking water, boiler and cooling water, manufacturing, production operations and effluent treatment.

BWT offers specific solutions for a wide variety of industries, regardless of the existing water quality and the needs the water ultimately has to satisfy:

For Trade and Industry

Operators and administrators in the real estate sector, mining, housing associations, hotels, food and beverage industry, automotive and aviation industry, chemical and oil industry, steel and electrical industry, for the manufacture of paper and glass

For the Healthcare Sector

Hospitals, therapeutic spa facilities, care homes

For Communities

Local drinking water supply, communal swimming pools, spas, hospitals, hotels, office blocks or schools

BWT Africa can assist you in the following ways:

  • Clarification
  • Filtration
  • Membrane Filtration
  • Chemical Dosing
  • Softening
  • Ion Exchange

Clarification

Water clarification is the process of solid liquid separation by which suspended solids and particulate matter are removed; often with help from flocculants and coagulants which increase settling. Our clarifiers are rectangular with lamella packing for space optimization and removes suspended solids in a more efficient and compact manner than traditional clarifiers.

  • Inclined plates: the inclined plates and lamella packing allows for the creation of a large surface area within the relatively small footprint.
  • Inlet and outlet: turbid water enters the lamella clarifier through the inlet flanged connection point to the inlet chamber. Clarifier clean water overflows into the launder and out through the outlet flanged connection point. Settled particles can be discharged from the bottom.
  • Adjustable launder: the overflow launder can be adjusted for effective overflow to create even up-flow rates.
  • Flocculant/coagulant dosing: the option of flocculant and/or coagulant dosing, the settling effectiveness can be improved with an accompanying pipe flocculator or radial blade mixer.
  • High efficiency: our clarifiers offer a higher surface area for sedimentation compared to conventional clarifiers, leading to improved separation efficiency.
  • Space-saver: the compact design of our lamella clarifiers makes them ideal for installations where space is limited.
  • Cost-effective: lower capital and operational costs compared to larger conventional clarifiers.
  • Plug-and-play: the flexibility of our lamella clarifiers can be combine with existing treatment systems to enhance their performance.
  • Reduced maintenance: this design is less prone to clogging and require less frequent cleaning.

Filtration

At BWT Africa we utilize various filtration methods to remove impurities from water. It involves passing water through various types of media, cartridges or materials.

  • Inflow: contaminated water is introduced into the filtration system
  • Distribution: the water is evenly distributed across the surface of the filter bed/cartridge to ensure uniform flow.
  • Filtration: as water percolates through the medium, suspended solids and impurifies in the water become trapped. This process occurs through various mechanisms including mechanical straining, adsorption or catalytic processes.
  • Filtered water collection: the clean water exits the bottom of the bed and collects for further treatment or distribution
  • Backwashing: water is reversed though the filter bed, dislodging and flushing out trapped particles or contaminants and set to the waste stream. Backwashing can be done by automatic heads or valve manifolds.
  • Effective impurities removal: a wide range of impurities can be removed by employing different types of media.
  • Reliability: our filtration systems provide consistent reliability on performance, ensuring the treated water meets quality standards for various applications.
  • Long lifespan: depending on the media, filter units can run for extended cycles before replacement is required, reducing the operating costs.
  • Wide application with our wide range of different media’s, filtration can be applied to a wide range of water sources, making it versatile for different industries.
  • Conservation of water: during commissioning we optimize the backwash frequency and duration of the backwash cycles for reduction in waste water.

Ultrafiltration and Reverse Osmosis

Hollow fibre or semipermeable membranes are utilized to separate contaminants for water. Membranes are a thin film barrier that are engineered to have a specific pore size that allows certain components to pass while blocking others. These membranes include microfiltration (MF), ultrafiltration (UF), nanofiltration (NF) and reverse osmosis (RO).

  • Feed inlet: is where the pre-treated water, containing dissolved contaminants enters the system.
  • High pressure pump: Pressure is required as a driving force to push the water through the membranes.
  • Concentrate reject: most membrane systems concentrate and reject the contaminants, that do not pass through the membranes, out as a waste stream. A portion of this waste could be recycled back to the feed to improve water recovery.
  • Energy-efficient: our pressure driven membrane applications require lower hydraulic potential energy, amounting to lower energy consumption.
  • Environmentally friendly: our membrane processes use fewer chemicals and generate less waste water to reduce environmental impacts of water treatment processes.
  • High purity: our membrane processes like reverse osmosis can produce extremely high pure water by removing ions, minerals, and organic contaminants, making it suitable for critical applications.
  • Selective separation: membranes are engineered to selectively separate specific components based on their size, charge, and other properties.

Chemical Dosing

Chemical dosing can be a low-cost solution to water conditioning. Our advance chemical dosing systems include, but are not limited to the following:

Coagulation/flocculation, disinfection, pH adjustment, membrane pre-treatment, scale and corrosion control/prevention.

  • Chemical storage: safe chemical storage units are important to keep operators safe from chemical exposure.
  • Dosing pump: our dosing pumps are responsible delivering the chemical into the process.
  • Tubing and injection: tubing is required to carry the chemical, and the injection system ensures the chemicals enter the stream of water for treatment.
  • Measurement and control: instrumentation and controllers can be utilized to dose the right amount of chemicals into the system.
  • Accurate and consistent: our chemicals dosing systems can provide accurate chemical concentrations for the process needs.
  • Reduced chemical consumption: we provide improved dosing rates in order to optimize chemical consumption and reduced operating costs.
  • Safety: all our chemical tanks ensure safe storage to minimize environmental contamination and chemical exposure.

Ion Exchange Ultra Pure Water

Ion exchange is a purification process whereby ions are exchanged between a solution and an ion exchange resin. This is a process that can be reversed, and the resin can be regenerated for re-use.

Common applications of ion exchange include the demineralisation/deionisation, specific contaminant removal and softening.

  • Ion exchange resins: this is typically made of small beads or granules with high surface area and it is designed to contain specific ions that can be readily exchanged with ions/contaminants in the water.
  • Ion exchange process: as the water flows through the resin bed, the exchangeable ions on the surface of the resin will interact with the ions in the solution. Specific ions on the water have a stronger attraction for the resin, and is exchanged for the ions that are on the surface of the resin.
  • Regeneration: over time the resin becomes saturated with the ions it has adsorbed from the water. To restore the resin capacity, it needs to regenerate. This is done by passing regeneration solution (containing high concentrations of original ions) through the resin bed, and returning the resin to its original state.
  • Product water: the treated water, now free from the contamination ions, is collected
  • Effective removal of specific contaminants: our ion exchange systems are highly effective at removing specific ions and contaminants for water. It can target and selectively remove ions like calcium, magnesium, heavy metals, nitrates, sulphates and many other.
  • Regenerability: our resin applications can be regenerated and reused, making it cost effective in the long term.
  • High purity water production: the capability of producing high-pure water by removing all impurities and contaminants to be used in pharmaceutical, semiconductor manufacturing and others.
  • Scalability: our system can be scaled up to match specific needs, whether it is small residential or large industrial water treatment.

Water Softening

Water softening is the process of reducing the totals hardness of the water, by removing/reducing calcium and magnesium ions. Hard water can lead to scale buildup in pipes, appliance, fixtures and reduce soap effectiveness.

  • Ion exchange resin: softening resin exchange sodium ions for calcium and magnesium
  • Automatic regeneration: the automatic head or valve manifold ensure the softening resin is regenerated once saturated, and controls the regeneration cycles.
  • Brine system: consisting of a holding tank, brine safety valve and tubing connected to the automatic head, or valve manifold venturi, where salt is dissolved to form the brine solution for regeneration.
  • Continuous operation: our duplex softener systems provide uninterrupted water supply even when in regeneration.
  • Prevention of scale build-up: our softener systems will prevent calcium and magnesium scale in pipes, geysers and appliances, extending the lifespan.
  • Improved water quality: our softeners will improve the taste of the water and eliminate unpleasant tastes/odours associated with hard water minerals.
  • Softener skin and hair: softened water is gentle on skin and hair, and reducing soap usage.

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