Gauteng
KwaZulu-Natal
Botswana
Namibia
Western Cape
SOUTH AFRICA
Modderfontein HouseModdercrest Office ParkHigh StreetModderfontein, 1609Tel: +27 11 663 3600 • Fax: +27 11 608 4772E-mail: [email protected]
GautengHead Office
Modderfontein HouseModdercrest Office ParkHigh StreetModderfontein, 1609Tel: +27 11 663 3600 • Fax: +27 11 608 4772E-mail: [email protected]
Isando12 Electron Avenue, Isando, 1600Tel: +27 11 974 8161 • Fax: +27 11 974 8867
KwaZulu-Natal
Durban Water Recycling Plant2 Byfield Road, Merebank, Durban, 4052Tel: +27 31 461 4590 • Fax: +27 31 461 5338
33 Willowfield Crescent , Springfield Park, Durban, 4091Tel: +27 31 579 5529 • Fax: +27 31 579 5539
Western Cape
5 De Vreugde Crescent, Daljosaphat, Paarl, 7646Tel: +27 21 871 1877 • Fax: +27 21 872 2664
BOTSWANA
Unit 5, Plot 50629, Block 3, Industrial Estate, Gaborone, BotswanaTel: 00267 395 3888 • Fax: 00267 397 4703
NAMIBIA
15 Brahman Street, Northern Industrial Area, Windhoek, NamibiaTel: 00264 61 261 143 • Fax: 00264 61 257 628
04-2
012
A holistic water and wastewater treatment
company, Veolia Water Solutions and
Technologies South Africa (Veolia) offers
a full range of services, from turnkey
contracting for large and small projects, to
speciality chemicals for both the industrial
and municipal markets.
With offices in South Africa, Botswana
and Namibia, Veolia has become the
leading expert in the design, construction,
commissioning and operation of water
and wastewater treatment plants in
Africa, offering a full range of operational
contracts including technical assistance, full
outsourcing and the financing of projects.
Recognised worldwide for its water treatment
expertise, Veolia has the knowledge and
resources to reduce the impact humans have
on the environment.
Veolia endorses the Black Economic
Empowerment (BEE) initiative and assists
in uplifting previously disadvantaged South
Africans through its BEE associate, Malutsa.
This company specialises in the engineering,
procurement and construction of plants,
as well as in services such as membrane
cleaning, plant refurbishment, maintenance,
chemicals, and consumables supply.
Expanding its sub-Saharan reach, Veolia
has also acquired Namibia-based water
treatment and equipment supplier,
Aqua Services & Engineering (ASE) – the
developer of the sophisticated sewage
trickling-filter technology.
Design and Build
This division manages the design, installation and commissioning of large-scale custom-engineered water and wastewater treatment plants on a turnkey basis.
Veolia boasts a full complement of project managers, process, mechanical and ECI (electrical, control and instrumentation) engineers, and handles all quality, safety, health and environmental issues during the design and execution of projects, as well as conducting feasibility and pilot studies during the development phase.
Engineered Systems
Engineered Systems’ project methodology enables the implementation of projects in the shortest possible time period at lower capital costs by utilising modular standard process and equipment designs for water and wastewater applications.
The packaged offerings by this division require little maintenance, are easy to transport and therefore are ideal for remote locations, and are additionally simple to install and commission on site.
Operations
Adopting a flexible approach in tailor-making operational solutions to satisfy all client requirements, this division has the capacity to operate and maintain water and wastewater treatment plants of all sizes on a continuous basis.
From the convenience of technical support to the advantages of outsourcing, our operational contract options include:
Technical assistancePlant maintenance assessment, technical recommendations and execution of
maintenance, as well as spares supply
Operation without maintenance Manpower for the day-to-day operation of water treatment plants, without
maintenance, spares and consumables
Divisions
Planned maintenance without operation Scheduled maintenance visits and timely replacement of spares and
consumables, without constant on-site presence
Operation and maintenanceFull operational and maintenance support
Build, own, operateChoice between a build, own, operate (BOO) contract, under which Veolia
finances the plant installation and acts as a water utility, and a build, own,
operate transfer (BOOT) contract, which is similar to the BOO contract, but
includes the transfer of the plant to the client after a fixed period
Services
The Services division helps to ensure operational efficiency of water treatment plants countrywide through a range of services.
ConsumablesThe Consumables division ensures minimal down time and maximum cost
savings with contracts for on-site preventive and responsive maintenance,
technical support and the supply of spare parts and consumables; sand,
gravel and other filtration media; ion exchange resin; activated carbon;
reverse osmosis, nanofiltration, ultrafiltration and microfiltration membranes
and spares; softeners; Rapide demineralisation units; standard membrane
products and continuous deionisation (CDI) units.
ChemicalsEnsuring optimum efficiency and safety of operations, the ISO-certified Hydrex™
range of speciality chemicals is suitable for various industries and includes
boiler and cooling water treatment chemicals, flocculants and polymers, chain
lubricants, industrial maintenance, as well as sanitising chemicals.
The production of process and potable water• Conventional potable water supply
Clarification and chlorination are used around the world to produce drinking water
that is both clean and abundant. Veolia installs world-class clarification systems that
settle suspended solids and, using chlorination, reduce the spread of waterborne
pathogens. This technology has been established as a leading resource to address
basic human water needs.
• Technologically-advanced potable water supplyVeolia designs treatment systems that meet the highest drinking water
standards with Veolia Water-developed technologies: Reverse osmosis and
ultrafiltration use high water pressure and selective membranes to filter
particles and ions of various sizes; the patented Actiflo® and Multiflo® are
advanced settlers and clarifiers that efficiently remove total suspended
solids (TSS), colour, algae and heavy metal co-precipitates for high quality
drinking water production; and ultraviolet (UV) treatments help to ensure
that treated water is also sanitised.
Desalination of seawater and brackish waterVeolia has vast experience in the design, construction and commissioning
of various types of water desalination plants. Desalination is an effective
treatment for obtaining potable or process water from sea or brackish water
to reduce project costs and to lessen the stresses placed on municipal water
sources.
Utilising global expertise and energy-efficient technologies such as reverse osmosis, clarifiers, filtration, UV treatment and chlorination, Veolia employs
either membrane technology, or the thermal process to desalinate seawater to the highest possible standards.
Wastewater treatmentMembrane bio-reactor (MBR) wastewater treatment
Biosep™ technology (membrane systems coupled with the use of a bio-reactor) produces water of sufficient quality to be discharged into surface water systems, or
to produce process or potable water.
Technical capabilities
This technology is easily retrofitted to older membrane systems and features
low environmental footprints.
Veolia uses aerobic biological treatment with activated sludge and
immersed membrane filtration to achieve water of high standards. Biosep™
technology significantly reduces carbon, nitrogen and phosphorus pollutants, and
drastically reduces water’s bacteria count.
Moving bed bio-reactors (MBBR) wastewater treatment
MBBR technology, pioneered by the Veolia Water sister company AnoxKaldnes,
produces a consistently high-grade water quality with activated micro-organisms
that are particularly resistant to changes in process conditions.
Biofilms, cultured onto suspended carriers of various shapes, sizes and
patterns (for maximum surface area), are agitated with constant aeration
– stimulating the continuous breakdown of organic matter. This technology
makes it possible to handle extremely high loading conditions without the
possibility of clogging, as well as treat municipal and industrial wastewater
with a relatively low footprint.
Existing plants can be easily upgraded to house MBBR technology by
integrating the biofilm carrier elements, an engineered aeration system,
and carrier element retention screens. The versatile technology can also be
used in wastewater pre-treatment, post-treatment, and in activated sludge
processing. MBBR technology further features the ability to cultivate specific
cultures for specific purposes in various process stages.
Nitrogen and phosphorous removal with activated sludge
The Veolia Water Solutions & Technologies-developed Azenit™ nitrogen and
phosphorous removal system is easily incorporated into wastewater treatment
systems as either a direct treatment of raw water, or downstream of a primary settling
stage. This system also removes suspended solids, BOD (biochemical oxygen demand)
and COD (chemical oxygen demand).
Technical capabilities
Trickling filter technology for wastewater treatment and re-use
Veolia offers an affordable and environmentally-friendly solution for advanced treatment
of domestic wastewater in association with its Namibian sister company, Aqua Services &
Engineering (ASE), that uses trickling filter, fixed film, and biological treatment processes.
This system is a self-contained modular-type water treatment plant for smaller near-potable
water demands.
The trickling filter system screens and removes non-degradable particles from raw
sewage. An anaerobic digestion process further prepares effluent for a fixed-film trickling
filter, where organic constituents are removed and nitrification and final water polishing
occurs. Final solid separation, chlorination and disinfection leave water ready for use in
various processes.
Water re-use: Wastewater recovery for process re-use and potable re-useWater from both industrial and municipal waste streams can be treated, recovered,
and re-used as process or potable water. Veolia designs, builds and commissions water
treatment facilities that limit our client’s reliance on municipal water sources or the need
to discharge large effluent quantities by supplying reclaimed water, saving both money
and reducing environmental impact.
Reverse osmosis, ultrafiltration, Actiflo® and Multiflo® clarifiers, ultrafiltration, UV
treatment, chlorination and disc filters are typically used in these efficiency-driven
and cost-optimised systems. Disc filters, from Veolia Water Solutions & Technologies’
subsidiary, Hydrotech, are mechanical and self-cleaning water filters designed for
systems where it is essential to prevent particles from fragmentation.
Sludge treatment: Incineration
Veolia reduces sludge volumes with its patented Pyrofluid™ incineration process, turning
organic matter contained within sewage sludge into oxidised ash to be recycled in various
ways.
Composting and pelletisation
Veolia Water Solutions & Technologies has enhanced the efficiency of greenhouse solar
sludge drying by coupling two well-known processes: air drying and aerobic fermentation
using Solia™ technology. This process leaves sludge dry and suitable for use as compost
(pelletised and as sprinkle).
Energy generation and co-generation
Innovative technology from Veolia Water Solutions & Technologies has turned wastewater
into a valuable energy resource. Biogas, heat and energy can now be recovered from
sludge in a cleaner, greener recycling process.
Exelys™, Veolia Water Solutions & Technologies’ enhanced sludge digestion process,
breaks down long chain molecules typical of sludge to release large quantities of biogas
for energy generation – while reducing overall sludge quantities.
Energy generation from biosolids enables wastewater treatment works to become
independent of grid supply, and even supply surplus clean power into the grid.
Potable water productionVeolia Water Solutions & Technologies South Africa (Veolia) has already made a significant contribution to the local infrastructure where basic access to water is not
only enshrined in the constitution, but necessary for continuous onward growth and improvement. The company has engineered and implemented conventional and technologically-advanced systems, including desalination, for large and small scale potable water production, while helping to maintain sustainable resource management.
The company supplies a full spectrum of services from building new turnkey plants, to refurbishing and upgrading existing plants, whether large-scale municipal projects or containerised plug-and-play units.
Project Success Mossel Bay Municipality, Western CapeVeolia supplied a turnkey seawater desalination plant to produce ten megalitres of potable water per day.
RequirementsThe Municipality required urgent relief to an on-going water shortage in the region and required the one-year construction period to be fast tracked. This was the first time a desalination plant of this size was constructed in South Africa.
SolutionSupplied directly by an open intake (about 600m out to sea), 15 megalitres of sea water is pumped into a holding tank via drum screens, which screen incoming water to 500 microns, or 0.5mm, to get rid of kelp, sea shells and other
impurities. Water then passes through six filters and reverse osmosis units for purification. Five megalitres of this water is supplied to PetroSA for process water,
while the remaining 10 megalitres is destined for human consumption after further chemical treatment that kills any bacteria and stabilises the pH balance.
Key technologiesFiltration • Reverse osmosis • Chemical treatment
Bitou Municipality (Plettenberg Bay), Western CapeVeolia supplied a turnkey seawater desalination plant to produce two megalitres of
potable water per day.
Municipal applications
RequirementsWith limited coastline space and environmental as well as aesthetic concerns in mind,
the Municipality required Veolia to design and build the plant within a tight deadline.
SolutionSea water is sourced from seven boreholes at a depth of 12m each, sunk close to
the landmark Beacon Isle Hotel where the beach sand acts as first phase filter.
The water is then pumped and treated by sea water reverse osmosis membranes.
Brine water is discharged into the sea where wave action disperses and minimises
excessive salinity. The plant’s building is also covered in indigenous succulents,
minimising noise and improving the plant’s aesthetics.
Key technologiesSand filtration • Reverse osmosis
Knysna Municipality, Western Cape
Veolia supplied a turnkey sea water desalination plant to produce
two megalitres of potable water per day.
RequirementsGrowing water and energy shortages in the Garden Route region dictated
that Veolia designs a highly efficient and effective potable water production
plant.
SolutionThe plant is centred on reverse osmosis skids with energy recovery turbines
that drastically reduce the plant’s reliance on an external energy source. Raw
water is abstracted from near the lagoon and, since it is constructed next to
the Knysna Wastewater Treatment Works, the plant discharges its brine into the
sewage works, which has low salinity. The generated potable water is pumped
into Knysna’s reticulation system with energy-efficient pumps.
Key technologiesReverse osmosis • Chemical treatment
Wastewater treatment
Veolia answers to a demand for better wastewater management through the local
integration of world-class technologies from within the global Veolia Water Solutions
& Technologies Group. Whether large or small scale plants, the company designs,
builds, commissions and operates wastewater treatment facilities to recoup
maximum value from wastewater, reduce its impact on the environment, and
optimise the distribution of usable water to those who need it most.
Project Success Durban, eThekwini Water Services (EWS), KwaZulu-Natal
This Veolia flagship plant treats industrial and municipal wastewater to near
potable standards for re-use in industrial processes by high-volume industrial
customers, such as Mondi Paper and SAPREF.
Requirements
The plant needed to free up potable water for municipal use in peri-urban
communities by reclaiming process water at a rate of 47,5Ml/day. This plant
also significantly reduces the amount of municipal wastewater discharged
into the environment.
Solution
Veolia performs initial screening, degritting and primary settling of raw
municipal wastewater. The effluent from the primary settling tanks, termed
feed water, is fed into an activated sludge plant. Feed water then undergoes
lamella settling in the first of three stages of the Multiflo® treatment process.
To coagulate solids in the feed water, a metal salt is dosed before polymers are
added to enhance flocculation.
After clarification and as the water leaves this area, it is dosed with polyaluminium
chloride to remove residual iron and enhance the filtration process. The dosed
water is sent to the dual media filtration stage where ozonising occurs to break
down remaining non-biodegradable organic compounds. The water is then polished
using activated carbon filters, chlorinated, and transported to a storage tank for
distribution to industrial customers.
Key technologiesClarification • Membrane bio-reactor • Chemical treatment • Carbon filtration
Municipal applications
City of Cape Town, Bellville Wastewater Treatment Works, Western Cape
This project involved the upgrade of the Bellville Wastewater Treatment Works (WWTW) to treat an additional 20Ml/day of high-grade effluent water, bringing
the plant’s total capacity to 70Ml/day.
Requirements
Veolia designed, constructed and commissioned the largest membrane bio-reactor (MBR) in the country to date – without disrupting the throughput of
the existing plant.
Solution
Veolia supplied a new inlet works for the MBR plant, new biological reactors and six membrane trains, including all mechanical and electrical works. A new sludge dewatering facility was also supplied, including an upgrade of the
existing electrical and control systems infrastructure.
Raw municipal wastewater passes through coarse screens for degritting, before passing through fine screens and undergoing anaerobic, anoxic and aerobic treatment. Ultrafiltration and dewatering of sludge make up the final processes.
Key technologiesMembrane bio-reactor • Ultrafiltration • Sludge management
Mossel Bay Municipality, Wastewater Treatment Works (WWTW)
Veolia was contracted to design, build and commission a municipal wastewater treatment plant to upgrade and re-use treated effluent. Reclaimed, near potable water is sold to the municipality’s industrial clients,
such as PetroSA.
Requirements
To meet the region’s short-term water needs, the plant was constructed to deliver 5Ml/day of high grade process water to the Wolwedans Dam – which supplies PetroSA. The plant’s design needed to accommodate for a future
expansion to produce 15Ml/day.
Solution
Veolia provided the mechanical and electrical works associated with the re-use plant. Membrane separation by way of reverse osmosis, micro-screening, ultrafiltration and desalination by reverse osmosis make up the range of trusted
key technologies used at this plant.
Key technologiesReverse osmosis • Ultrafiltration • Desalination
Company structure
South Africa
Gauteng
KwaZulu-Natal
Botswana
Namibia
Western Cape
SOUTH AFRICA
Modderfontein HouseModdercrest Office ParkHigh StreetModderfontein, 1609Tel: +27 11 663 3600 • Fax: +27 11 608 4772E-mail: [email protected]
GautengHead Office
Modderfontein HouseModdercrest Office ParkHigh StreetModderfontein, 1609Tel: +27 11 663 3600 • Fax: +27 11 608 4772E-mail: [email protected]
Isando12 Electron Avenue, Isando, 1600Tel: +27 11 974 8161 • Fax: +27 11 974 8867
KwaZulu-Natal
Durban Water Recycling Plant2 Byfield Road, Merebank, Durban, 4052Tel: +27 31 461 4590 • Fax: +27 31 461 5338
33 Willowfield Crescent , Springfield Park, Durban, 4091Tel: +27 31 579 5529 • Fax: +27 31 579 5539
Western Cape
5 De Vreugde Crescent, Daljosaphat, Paarl, 7646Tel: +27 21 871 1877 • Fax: +27 21 872 2664
BOTSWANA
Unit 5, Plot 50629, Block 3, Industrial Estate, Gaborone, BotswanaTel: 00267 395 3888 • Fax: 00267 397 4703
NAMIBIA
15 Brahman Street, Northern Industrial Area, Windhoek, NamibiaTel: 00264 61 261 143 • Fax: 00264 61 257 628
04-2
012