treatment addressing a dual challenge for of public health and the environment urban wastewater & reuse to reduce the treating environmental impact wastewater of cities... 9.1 billion inhabitants. This is the figure that the world population could reach in 2050 (United Nations - WWDR4) 2.6 billion people have no access to improved sanitation (United Nations - WWDR4) 90 % of wastewater in developing countries flows untreated into rivers, lakes and highly active coastal Global population growth, urbanisation and new production and areas consumption methods present a dual challenge in terms of public (United Nations - WWDR4) health and environmental conservation for emerging and developed countries. On a worldwide scale, the treatment of wastewater is one of the key factors in protecting water resources.

All the Group’s brands (Degrémont, Ozonia, Aquasource, Ondeo IS, Ameriwater, Infilco, Poséidon, etc.) have been using the SUEZ single brand since March 2015. 50 % From now on, technologies and expertise of the of the world’s fresh water “Treatment Infrastructure” business line will be identified by the reserves are polluted degremont® label.

2 SUEZ - treatment of urban wastewater & reuse … a SUEZ’s offer for local authorities

SUEZ’s comprehensive water cycle expertise and know-how make it a key player in conserving water resources. Its water treatment experts offer local authorities latest-generation plants that are adapted to local challenges, highly efficient, innovative and environmentally friendly.

the SUEZ offer: four outsatnding advantages proactive R&D complementary areas of activity With 75 years of experience as SUEZ’s worldwide network of • Customised design & build for new a builder-operator and many researchers and experts are plants, extensions or rehabilitations. references for local authorities and developing key innovations to As both project managers and water industry, SUEZ has been able to anticipate regulation and future treatment experts, SUEZ’s dedicated anchor its position as a global leader challenges in the field of sanitation, specialist teams handle all the in wastewater treatment, thanks to: and to design the wastewater  stages in the design and building • its expertise in managing the wide treatment plant of the future: optimisation of traditional process: from the choice of process range of discharge collected; •  treatments; and setting, managing purchasing, • its know-how in designing and managing compact facilities; development of tertiary treatments site supervision, installation of • • its know-how in odour management; such as filtration, microfiltration, equipment and operational start-up. • its expertise in recovery ultrafiltration, etc.; and the production of alternative • development of refining techniques • Operation and service solutions energies; such as ozonisation, UV disinfection, for daily management, facilities • its concern for safety, which is the etc.; optimisation, preservation of assets essence of its processes; optimisation of energy efficiency. and for “custom” services such as • • its extensive past experience, which technical support, supply of spare enables it to optimise the day-to-day parts, upgrades, training, etc. performance of facilities; SUEZ’s water treatment experts • its preventative maintenance plans, are developing the best technique “Packaged” equipment and • which prolong the life of the plant combinations so as to give technologies to increase or diversify and preserve assets; wastewater a new lease of life by the performance of treatments or • its expertise in wastewater reusing it in agriculture or industry. for a modular, compact and easy-to- treatment technologies, which has operate design. made it a pioneer in reusing treated wastewater. • Financing in the form of a BOT (Build, Operate, Transfer) contract, 2,500 wastewater a genuine partnership in which treatment plants designed and built SUEZ is fully involved right up the by SUEZ worldwide financing management.

26 million people benefit from the treatment of their wastewater by SUEZ’s water treatment experts

SUEZ - treatment of urban wastewater & reuse 3 treatment solutions that have proved their worth

Building on their experience, SUEZ’s water treatment experts can respond to local challenges with the aim of conserving water resources and protecting biodiversity across the globe. If necessary, they are designing their treatment plants so that the treated water can be reused, whilst complying with the constraints of environmental and public health regulations.

Biomaster Densadeg® (pre-treatment) (primary settling and tertiary treatment) This aerobic This settler biological using external ® degrading sludge Biofor procedure is recirculation (biological treatment) specifically combines a This for greasy rapid physical- biofiltration residue from chemical settling (flocculation + solution the plant’s lamellar clarification) with a sludge combines degreasers, fat boxes from thickening pre-treatment in a single Culture fixed filtration with restaurants, canteens, etc. It is a work. As a primary settling stage, it intensive biological treatment. The compact and stand-alone system is used to eliminate SS¹ and colloids natural mineral filter media retains that is easy to automate and which and to reduce the BOD² and the COD³. any suspended solids. Carbonaceous eliminates the cost of transporting As a tertiary treatment stage, it treats and/or nitrogenous pollution is fatty waste to landfill or incineration phosphorus and any residual SS. eliminated through the development plants. Its modular and lamellar design of natural in the form of bio- makes it a compact unit which is film (purifying biomass) that attaches suited to plants of all sizes. on the filter media. Sedipac™ 3D The performance of this treatment (primary settling) meets the standards for all types This combined Combigreen™ of effluent (low temperature, large treatment (biological treatment) variations in flow and/or load, diluted, process This biological etc.). This compact and modular integrates process solution is suited to space and three functions combines architectural constraints. in one single Free culture an annular work: grit removal, grease removal aeration channel with a central and settling. The system works at settling basin. The hydraulic design high-speeds of treatment and without of the aeration channel/settling reagents. The water is clarified basin combination ensures savings efficiently using lamellar modules. up to 15% in the energy required to It can be used in any type of facility re-circulate sludge and pump raw upwards of 15,000 PE. water. Combining these two treatment phases into one process reduces the total footprint of the plant up to 25%.

1 SS = suspended solids 2 BOD = biological oxygen demand 3 COD = chemical oxygen demand

4 SUEZ - treatment of urban wastewater & reuse Aquazur™ V Pulsagreen™ systems are chosen for their efficiency (tertiary treatment) (tertiary treatment) in SS reduction, disinfection, and This downflow This lamellar removal of the micropollutants open sand settling attached to the retained particulate filter retains clarifier uses matter. SS and their a powdered associated activated pollutants. It carbon Ozoneur enables filtration at high speeds of (PAC) pulsed (tertiary treatment) filtration. Whether or not it follows blanket to reduce the majority of The on from a settling basin, it helps to micropollutants. It is even more (O3) has a very retain micropollutants associated with effective on adsorbable compounds substantial SS and to obtain high quality filtered such as and alkylphenols. oxidising water. The pulsations optimise the contact capacity. When of the dissolved organic matter and it oxidises the micropollutants with the activated organic Filtrazur™ carbon, encouraging their adsorption, substances, the ozone destroys a (tertiary treatment) then their removal during the lamellar number of micropollutants (or makes This Mediaflo settling. them more easily biodegradable) floating and pathogenic organisms (viruses material open and bacteria). It degrades a broad filter operates Ultrablue™ spectrum of persistent organic with an (tertiary treatment) micropollutants in the effluent. It ascending flow. The Mediaflo ensures These also acts on colour and organic that residual polluting particles are ultrafiltration macropollution. captured. It makes it easier to capture membranes let nitrifying bacteria, thus ensuring small molecules that ammonium is further eliminated (water and salts) on the basis of the rate of dissolved through, but block oxygen. molecules with a high molar mass (polymers, proteins and colloids). These treatment

SUEZ - treatment of urban wastewater & reuse 5 to guarantee cutting-edge the future of our solutions resources

Their familiarity with local problems across the globe, In order to support the development of local combined with their expertise, mean that SUEZ’s water authorities, depending on the quality of the effluent treatment specialists are able to anticipate changes in for decontamination and the sensitivity of the receiving this field and develop their own technology, using it to environment, they design treatment lines of various create their own treatment combinations. degrees of complexity, optimising the balance between quality, price, operating costs, energy efficiency and environmental footprint.

Meteor® water treatment line. This limits the (biological treatment) Greenbass™ impact of digestion on the water This range of biological reactors, in (biological treatment) treatment line. which bacteria are trapped in the This regulation Cleargreen™ uses less energy than a form of biofilm on mobile media, is solution of conventional treatment. dedicated to carbon and/or nitrogen sequenced removal. They are suited to variations aeration for in load, flow or temperature. activated sludge Cyclor™ There are 2 products in the range: reduces energy (biological treatment and purification) consumption by This sequenced ® • Meteor MBBR up to 15%. The biological (Moving Bed Biofilm Reactor) system uses both concentrations of reactor is ammonia nitrogen (N-NH +) and nitric made up of This is a 4 nitrogen (N-NO -) for more precise cells that carry fluidised 3 attached control of the process of nitrification/ out all the growth reactor which is used, as a denitrification, therefore avoiding treatment steps (aeration, settling, preference, for treating carbon only, excessive aeration by adjusting air draining). or for partial treatment of nitrogen; flow to the exact air requirements of This type of reactor optimises the bacteria in the aeration tanks. denitrification and biological ® phosphate removal reactions and • Meteor IFAS improves the settleability of the (Integrated Fixed film Activated sludge. Sludge) Cleargreen™ This hybrid (biological treatment) growth reactor (fluidised attached growth and Aération Dé-ammonification Décantation suspended growth) is used, as a preference, for the total nitrogen This biological treatment solution is allowance and the biological for effluents with high concentrations treatment of phosphorus. of ammonia. Implementation of deammonification in a sequenced Cyclor™ reactor allows the treatment of effluents from sludge anaerobic digestion returning to the head of

6 SUEZ - treatment of urban wastewater & reuse REUSE… specific solutions to go further

In order to assist local authorities with their resource MULTI-BARRIER SOLUTIONS FOR WASTEWATER management policies, SUEZ’s water treatment experts offer numerous technical solutions for reusing purified DISCHARGE REUSE wastewater. Avoiding discharges whilst increasing available resources at a lower cost is one of the key advantages of wastewater DISINFECTION DISINFECTION DISINFECTION SS, COD, SS, Dissolved salts Phosphorus, Virus and Micropollutants reuse. Furthermore, access to an alternative reliable Alkalinity Removal Removal Reduction quality resource in sufficient quantities contributes to the sustainable development of regions affected by water WASTEWATER FILTRATION CLARIFICATION REFINING STANDARD TREATMENT Ultrafiltration Reverse Osmosis shortages and drought.

Electrodialysis These days, the preservation of water resources is widely recognised as a requirement arising from three factors: BIOLOGICAL AND MEMBRANE TREATMENT human, environmental and economic. SUEZ designs solutions that meet the agricultural, urban or industrial needs and that enable to replenish natural SS, COD, SS, water reserves. Phosphorus, Virus Alkalinity Removal Reduction DÉSINFECTION

Ultrafor™ / Ultragreen™ Greendaf™ Compakblue™ (biological treatment, clarification and (clarification and tertiary treatment) (tertiary treatment) tertiary treatment) This range This type of These two of dissolved immersed membrane air flotation disk filter is bioreactors systems recommended (MBR) combine capitalise on for removing biological the fact that certain solid or liquid suspended solids degradation of particles are able to cling to air and the associated contaminants bubbles to form a blanket less dense pollutants, such as micropollutants. with advanced clarification by than water. These blankets are then This solution is an alternative to ultrafiltration membranes (hollow collected as a foam (floating sludge) traditional filtration on granular fibre membranes for the former and on the surface of the machine. media and is particularly suitable for flat sheet membranes for the latter). The range comprises 3 products: discharge in sensitive areas and offers The resulting effluent complies with identical performance for a footprint discharge standards for even the • Greendaf™ MW area four times smaller. most sensitive environments and (Meteor Water) for separating is suitable for reuse. These MBRs biological sludge generated by are more efficient (according to the attached growth processes such as results of the AMPERES project) on Meteor™ MBBR; 20% of the micropollutants which are only partly removed by traditional activated sludge systems or which are • Greendaf™ BWW adsorbable. (Biofilter WashWater) to reduce or eliminate biofilter washwater effluents returning to the head of water treatment line of in order to avoid over-sizing the upstream treatment line;

• Greendaf™ TW (Tertiary Water) to remove phosphates from treated water.

SUEZ - treatment of urban wastewater & reuse 7 a few flagship projects

CONSTRUCTION/OPERATION

CANNES (France) LE CAIRE (Egypt) 300,000 PE 2,300,000 PE The Aquaviva plant in Cannes is the first carbon-neutral Its 3 stages make Gabal El Asfar the largest wastewater wastewater treatment plant in the world. treatment plant on the east bank of the Nile.

PANAMA City (Panama) PARIS Seine amont (France) 1,000,000 PE 3,500,000 PE The largest wastewater treatment plant in the country, The first wastewater treatment plant in France serving more a benchmark in the region in terms of sanitation and than 100,000 residents to be granted ISO 50001 certification. environmental preservation.

LA FEYSSINE (France) MAPOCHO (Chile) 300,000 PE 4,000,000 PE This plant consumes very little external energy, drawing on its The rehabilitation of this plant doubled its capacity, enabling it to own energy resources. treat 760,000 m³/day. Cogeneration from the biogas produced by the sludge digestion provides 60% of the electricity required by the plant and the heat required by the digestion process.

8 SUEZ - treatment of urban wastewater & reuse REUSE BOT

MEDIOUNA (Morocco) MARIBOR (Slovenia) 40,000 PE (extendable to 80,000 PE) 195,000 PE On the outskirts of Casablanca, this is the first wastewater Working in partnership under this 20-year BOT contract made treatment plant in Morocco and in North Africa to use an it possible to lower tariffs initially by 15% and to improve ultrafiltration membrane process. The treated water can be operating performance, releasing new financial resources. reused for agricultural irrigation.

DOHA WEST (Qatar) AS SAMRA (Jordan) 1,040,000 PE 3,300,000 PE The plant recycles nearly 85% of its treated water, which This 25-year BOT contract to extend the plant (from 2,270,000 is used to irrigate green spaces or vegetable plots, or to to 3,300,000 PE) has created added value in economic, replenish the water table. Any surplus is stored in lagoons, environmental and social terms with an affordable tariff for where flora and fauna develop. the local community. This is the first project of this size in which MCC* has been involved.

MILAN San Rocco (Italy) CIUDAD JUÁREZ (Mexico) 1,050,000 PE 310,000 m³/day disinfection at the end of the treatment cycle This 15-year BOT contract to finance and build an extension enables water to be reused for agricultural irrigation at a flow (from 225,000 to 310,000 m³/day) of two existing urban rate of 14,400 m³/h in dry periods. wastewater treatment plants and then to operate them, makes it possible for the city to reuse the treated water to irrigate nearby agricultural areas, thereby freeing up a large volume of potable water to ensure that the city can be self- sufficient in water for the next 30 years.

*Millennium Challenge Corporation, a US Government development institution

SUEZ - treatment of urban wastewater & reuse 9 a partnership

strategy and a to consolidate and enhance the added value of its offers, SUEZ is committed to genuine proximity partnerships and maintains constant dialogue with commitment customers

technological cooperation creates customised associations value and differentiation SUEZ is committed to Alliance With its expertise in water treatment contracts with some of its clients, and experience acquired at numerous especially for a joint management plants, SUEZ teams up with of water and wastewater services, appropriate equipment manufacturers with the aim of optimising costs and to develop and optimise new delivering environmentally friendly treatment solutions, new energy performance, including energy recovery systems and new sources of efficiency. alternative energy. In addition, by calling on partners constantly listening to clients to contribute on know-how outside Understanding their stakes, its own areas of expertise, SUEZ anticipating their needs, innovating has extended its scope and and controlling costs… by being competitiveness (selling price, always in tune with its clients, SUEZ deadline, quality, technological offers treatment solutions which differentiation…). match their objectives and address the challenges that water represents programmes with local for them. In this way, local authorities: authorities • can treat wastewater of the SUEZ develops partnerships with population in accordance with local some of its major customers, health, safety and environmental especially through research standards; programmes and in the field of social • can preserve water resources by and environmental responsibility. This extending the use of water thanks approach helps SUEZ to understand to the treated wastewater reuse for the challenges they face. agricultural purpose, street cleaning or water table replenishing.

10 SUEZ - treatment of urban wastewater & reuse a culture of innovation and industrial excellence

SUEZ’s water treatment experts are developing the best technological, commercial, logistical, financial and contractual solutions to respond to the needs of their customers customers are the source of dedicated specialist teams responsible involvement at all anticipation and innovation Having experts in design, build, stages of the project SUEZ’s global reach enables it to equipment and operation, SUEZ is For example, by signing a BOT (Build, anticipate and detect early indications able to draw on the particular skills Operate, Transfer) contract, SUEZ is of major changes that will affect all of its employees for each project to committed: the water treatment players. For the create a response that meets the • over the long-term, from the design water treatment specialists of SUEZ, specific needs of its customers. to the transfer of the plant, through innovating means putting customers The commitment and motivation of its operation; and their needs at the heart of the its teams enable SUEZ to deliver • to integrating responsibility for process. SUEZ’s teams are perfectly high performance, energy-efficient raising the necessary finance; positioned to analyse evolving and reliable plants to its customers, • to establishing the legal framework requirements, devise tomorrow’s within short timescales and at an for the project; solutions and adapt to local optimal capital and operating cost, • to securing completion of the project conditions. This approach is conducive and to guarantee the quality of water by involving selected partners to generating original solutions – not required by the natural receiving to contribute added technical or only from a technological, but also a environment or the objective for which financial value, specific know-how financial, contractual and logistical the water is reused. and local knowledge. standpoint – that best respond to A BOT contract involves SUEZ in global or local needs. long-term commitment and service to the customer, guaranteeing the performance of the plant in terms of volume and quality of the treated water.

SUEZ - treatment of urban wastewater & reuse 11 France 92508 Rueil-Malmaison 183 Avenue du18juin1944 Treatment solutions SUEZ www.degremont.com

Graphic : Gautier Rousseau – Photos : SUEZ’s Mediacenter – Réf. M-ER-001-EN-1601