Presentation to Delegation from Poland

Presentation to Delegation from Poland May 2014, Asker By Harald Kleiven, VP of Business Development Stefan Sandbacka, Head of Business Unit Cambi AS Skysstasjon 11A Pb 78 N-1371 Asker Norway www.cambi.com E-mail: office@cambi.no Tel: +47 66 77 98 00 Fax: +47 66 77 98 20

CAMBI S BUSINESS AREAS Biosolids: Plants for enhanced biogas production from municipal & industrial sludge Biowaste: Plants for biogas fertilizer from source-separated organic waste Operations: Cambi Operations provides support and operation services to maximize plant performance

CAMBI ACHIEVEMENTS Established in 1989. Offices in Norway, Denmark, UK, Germany, Korea, China (rep Office) and USA Cambi is the world leader in Advanced Anaerobic Digestion, having delivered 27 plants worldwide since 1995 and 14 more are under design/construction, with total treament capacity of 920,000 metric tons of DS (dry solids)/year Treatment capacity for sludge and biowaste equivalent to 31.5 million people Production capacity of 2270 GWh thermal energy (biogas) and 900 GWh green electrical power, when using gas engine cogen Odd Egil Solheim (inventor) The first day of the future, is tomorrow Green energy production replaces 900,000 tonnes of fossile CO 2 emissions. Avoidance of methane emissions from landfills, less transport, etc. comes in addition (about 3 mill tons CO2 equivalents) Cambi THP is an eco-friendly Paradigm-shifting Technology, dramatically improving design and operations, and helping EPC contractors win turnkey biogas plant contracts

CAMBI & CLIENTS WIN 7 AWARDS WORLD-WIDE SINCE 2011 Paris/World 2014: Cambi won the Water Technology Company of the Year Distinction at the Global Water Summit, Paris, 7-8 April 2014, for unrivalled domination of the market for large-scale municipal installations featuring thermal hydrolysis technology for sludge treatment. Norway/World 2013: CAMBI won Ernst & Young Entrepreneur Of The Year, category Services: CAMBI's sludge treatment technology is today recognized as world leading.. The Jury pointed out that CAMBI invests huge amounts in R&D in cooperation with universities both in Norway and abroad. UK 2013 : At the annual Institution of Chemical Engineers awards dinner, the SBAP (Cambi) project at Davyhulme won first place in the Energy Award category for its submission Turning Black Gold Green! the best project to demonstrate innovation in renewable energy, alternative energy sources, efficient energy UK, 2012: CAMBI has built 2 AD Plants for Northumbrian Water (NWL), Bran Sands & Howdon, both using CAMBI s Thermal Hydrolysis Process. NWL won the Renewable Energy Award under the Sustainability Leaders Awards (the edie Awards for Environmental Excellence). Norway, 2012: The Norwegian Research Council's Innovation Award goes to Cambi and the Municipality of Oslo for the Cambi biogas plant at Nes, Norway, serving the Capital of Norway, Oslo. Biogas is upgraded to liquid biomethane and used as fuel. The nutrients from food waste is recycled as bio-fertilizer Norway 2012 : Cambi got the Innovative Environmental Technology Award at the Technoport conference in Trondheim. The award criteria were that the company has shown great innovation ability and developed an environmental technology that gives lower strain to the environment than alternative solutions. USA, 2011: Water Environment Research Foundation (WERF) Recognizes DC Water's Biosolids Project with Award for Excellence in Innovation as One of the Greenest Projects in the World (2012)

CAMBI PLANT LOCATIONS

CAMBI PLANTS (in operation, metric tons) Customer/project Location Design capacity (TDS/year) TYPE Completed no. of plants Application HIAS (1) Hamar Norway 3,600 tonnes WWTP 1996 1 F A Thames Water (2) Chertsey UK 9,600 tonnes WWTP 1999 2 F A Borregaard Industries Sarspborg Norway 4,000 tonnes PAPER 2000 3 W I The Municipality of Næstved* Næstved Denmark 1,600 tonnes WWTP* 2000 4 W A Nigg Bay Aberdeen UK 16,500 tonnes WWTP 2001 5 F A Mjosanlegget, Biowaste Plant*** Lillehammer Norway 4,600 tonnes OFMSW 2001 6 B A Ringsend Sewage Treatment Works Dublin Ireland 36,000 tonnes WWTP 2002 7 F D, A The Municipality of Fredericia Fredericia Denmark 8,000 tonnes WWTP 2002 8 F A Kobelco Eco-Solutions Niigata Japan 1,200 tonnes WWTP 2002 9 F A Spolka Wodna Kapusciska Bydgoszcz Poland 8,000 tonnes WWTP 2005 10 F A Thames Water Chertsey UK Included in (2) Operations 2005-2012 Part of 2 F A HIAS, additional digester Hamar Norway Included in (1) New digester 2005 Expanding 1 F A Oxley Creek Brisbane Australia 12,900 tonnes WWTP 2007 11 W A Bruxelles Nord Bruxelles Belgium 20,000 tonnes WWTP 2007 12 W O HIAS- Expansion Hamar Norway 2,000 tonnes WWTP 2007 Expanding 1 F A Cotton Valley (Anglian Water) Milton Keynes UK 20,000 tonnes WWTP 2008 13 F A Ecopro, multi-waste** plant Verdal Norway 8,000 tonnes OFMSW*** 2008 14 B + F A Whitlingham WWTW (Anglian Water) Norwich UK 19,000 tonnes WWTP 2008 15 F A Biovakka Oy Åbo/Turku Finland 14,000 tonnes WWTP 2008 16 F A Nigg Bay, upgrade Aberdeen UK 4,000 tonnes WWTP 2009 Expanding 5 F A Bran Sands (Aker-Kværner/NWL) Tees Valley UK 37,000 tonnes WWTP 2009 17 F A Amperverband, Cambi THP-C* Geiselbullach Germany 2,000 tonnes WWTP 2009 18 H I Ringsend STW (New THP line) Dublin Ireland 20,000 tonnes WWTP 2010 Expanding 7 F D, A Cardiff, Welsh Water (Imtech) Wales UK 30,000 tonnes WWTP 2010 19 W A Afan, Welsh Water (Imtech) Wales UK 20,000 tonnes WWTP 2010 20 F A Riverside, Thames W (Interserve) London UK 40,000 tonnes WWTP 2011 21 F A Vilniaus Vandenys/ Vilnius Water Co. Vilnius Lithuania 23,000 tonnes WWTP 2011 22 F D, A Mapocho WWTP (Degremont)* Santiago Chile 25,000 tonnes WWTP 2012 23 H A Lindum, Cambi Compact Drammen Norway 6,000 tonnes WWTP 2012 24 F A Davyhulme, UU (B&V) Manchester UK 91,000 tonnes WWTP 2012 25 F A, I Howdon (Imtech/NWL) Newcastle UK 40,000 tonnes WWTP 2012 26 F A Oslo EGE*** Oslo Norway 15,000 tonnes OFMSW*** 2013 27 B A Product end-use

CAMBI PLANTS (in design/construction, metric tons) Ordered Plants / Under design/construction DC Water Washington DC USA 130,000 tonnes WWTP 2014 28 F A Heijmans, STC Tilburg Tilburg Holland 29,000 tonnes WWTP 2014 29 F I Crossness, Thames Water London UK 36,500 tonnes WWTP 2014 30 W A, I Beckton, Thames Water London UK 36,500 tonnes WWTP 2014 31 W A, I Sundet WWTP, Växjö Municipality** Växjö Sweden 8,600 tonnes WWTP 2014 32 F A Vigo WWTP (UTE EDAR Lagares) Vigo Spain 22,000 tonnes WWTP 2014 33 F A Crawley STW upgrade (GBM 1 ) West Sussex UK 11,300 tonnes WWTP 2014 34 F A IVAR Biogas Plant** Stavanger Norway 11,800 tonnes WWTP 2014 35 F A Seafield STW, MWH (Stirling Water) Edinburgh Scotland 27,000 tonnes WWTP 2014 36 F A Long Reach, Aecom (T. Water) Kent, London UK 13,000 tonnes WWTP 2014 37 F A Burgos WWTP (Degremont) Burgos, Castile Spain 13,000 tonnes WWTP 2015 38 F A Ourense WWTP (Degremont) Ourense, Galicia Spain 7,000 tonnes WWTP 2015 39 F A Mjosanlegget*** New Plant Lillehammer Norway 4,800 tonnes WWTP 2016 40 F A Bakdal WWTP** Anyang S. Korea 27,700 tonnes WWTP 2015 41 F D TDS = Total dry solids (1000 kg = 1 tonne) Total: 920,200 tonnes Pop. Equiv. 31,514,000 Applications: H: Cambi Hybrid (WAS only TH mixed with untreated P), not Class A W: WAS, biological sludge, only (usually extended aeration) F: Full Cambi, TH of both P and WAS sludge, Class A B: Biowaste O: Wet-air oxidation Product end-use: A: Use of end product in agriculture D: Drying of end-product I: Incineration of end-product

CAMBI REFERENCE LIST, BIOWASTE AND CODIGESTION (metric) CAMBI REFERENCE LIST, BIOWASTE AND CODIGESTION Customer/project Location Design capacity (TDS/year) Design capacity (wet t/year) Approx t raw Sludge (a.r.) OFMSW tons (a.r.) TYPE Completed Product end-use Mjosanlegget, Biowaste Plant Lillehammer Norway 4,600 tonnes 15,000 tonnes 0 tonnes 15,000 tonnes OFMSW 2001 A Ecopro, Codigestion plant Verdal Norway 8,000 tonnes 33,000 tonnes 20,000 tonnes 13,000 tonnes OFMSW* 2008 A Oslo EGE Oslo Norway 15,000 tonnes 50,000 tonnes 0 tonnes 50,000 tonnes OFMSW 2014 A Sundet WWTP Växjö Sweden 8,600 tonnes 37,000 tonnes 26,000 tonnes 11,000 tonnes WWTP* 2014 A IVAR biogas plant Stavanger Norway 11,800 tonnes 44,000 tonnes 16,000 tonnes 28,000 tonnes WWTP* 2014 A Mjosanlegget, New Plant Lillehammer Norway 4,800 tonnes 20,000 tonnes 14,000 tonnes 6,000 tonnes OFMSW 2016 A Anyang City Anyang S. Korea 27,700 tonnes 128,000 tonnes 107,000 tonnes 21,000 tonnes WWTP* 2016 D TDS = Total dry solids (1000 kg = 1 tonne) Total: 80,500 tonnes 327,000 tonnes 183,000 tonnes 144,000 tonnes OFMSW = Organic Fraction of Municipal Solid Waste DS% in Food-w aste 30 % *Codigestion: mix of sludge, OFMSW, and other organic w aste DS% in raw sludge 20 % In operations: Under design/construction: Total: T DS 27,600 tonnes 52,900 tonnes 80,500 tonnes Product end-use: A: Use of end product in agriculture D: Drying of end-product I: Incineration of end-product

CAMBI PLANTS, Cumulative capacities (dry metric tons/y, DTPY) 900,000 800,000 New Capacity Online, DTPY Cumulative Capacity, DTPY 700,000 600,000 500,000 400,000 300,000 200,000 100,000 0 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014

THE CHALLENGE OF SLUDGE AND BIOWASTE Overloaded digesters? Biological sludge difficult to dewater? Quality/Class A requirements? High disposal costs? Odour? Waste and wastewater management does not come for free!

CAMBI THP - BENEFITS

CAMBI THP

CAMBI THP IMPROVES DIGESTION Control Parameters CAMBI Digester Conventional Digester Retention time 15 days 20 days Digester volume < ½ of conventional 1 DS Load 9 12% 4 6% VS Load > 5 kg/m³/day 2-3kg/m³/day ph 7.5 8.0 6.8 7.5 Temperature 38 42⁰C 35-37⁰C VFA/Total alkalinity 0.1 0.5 0.1 0.5 Ammonium 2500 3000 mg/l 600 1000 mg/l Gas Quality 65 68% CH₄, H₂S low 60 65% CH₄, H₂S high Foaming bacteria None Nocardia, Microthrix

CAMBI VIDEO Pressure-Cook sludge & biowaste prior to Digestion

CAMBI THP EFFECTS FROM PRESSURE COOKING SLUDGE Dewatered 15% DS Hydrolysed sludge 12-13% DS Mix of digested sludge and hydrolysed sludge to digester 7-8% DS Digested sludge 6 %DS Dewatered cake 30-35% DS

SLUDGE BEFORE AND AFTER THP Thermal hydrolysis disintegrates the cellular structure of bacteria and solubilizes exopolymers to yield an easily digestible product BEFORE AFTER Source: Cambi THP at Geiselbullach WWTP, Olching, Bayern, Germany. Operator and owner: Amperverband

CAMBI EFFECT: END-PRODUCT QUALITY ABERDEEN 16,5000 tons DS/year

MEDIUM; KAPUSCISKA WWTP, BYDGOSZCZ, POLAND 8000 t DS/y

KAPUSCISKA WWTP, BYDGOSZCZ, POLAND Before: 20,000 tpa, 20-22% DS, Smelly, high level of pathogens (human, animal and plant diseases) After Cambi Treatment: 10,000 tpa Cambi cake 30-33% DS Low odour Free of pathogens

ABERDEEN FARMERS USING CAMBI PRODUCT 16,5000 tons DS/year Cambi THP plant 10 years of successful biosolids recycling It is stackable, stable (no smell) and safe No complaints at all by customers or neighbours

ABERDEEN, SCOTLAND 35 MGD +25 MGD imports) Cambi + Belt-press Dewatering + Agriculture Application 20,000 t DS/year 16,500 tonnes DS/year 2 x 4,000 m³ digesters Electricity + steam cogen Cake 33% DS from Belt Presses 38% after 2 weeks storage Digester loading: Twice the conventional < 20,000 Pasteurized product for grassland

CAMBI XXL: DAVYHULME, UK, 91,000 t DS/year (1000 MLD) CAMBI Advanced digestion: Class A Cambi Cake to agriculture and incineration back-up Increaseas capacity at existing incinerator by 14,000 tonnes dry solids/year (avoided new incinerator) 60% VS reduction, 2.5 times more sludge through existing digesters 10 MW green electricity generation (gas engines), and steam to Cambi Cambi THP B12-4x5 reactors Raw sludge cake import 8 x 7500 m3 digesters

DAVYHULME, COMBINING ADVANCED DIGESTION WITH INCINERATION Digestion reduces volatile solids content which in turn reduces calorific value on a dry basis Dewatering is more influential than volatile solids content with respect to sludge calorific value 1% VS ~ 60 kj/kg; 1% DS ~ 140 kj/kg Digestion prior to incineration offers many benefits Reduced incineration requirement; better energy recovery; lower CO 2 footprint; Advanced digestion can increase capacity of existing incineration facilities Installation of TH can increase capacity at SG by ~ 14,000 TDSA

CAMBI SIGNIFICANTLY REDUCES CARBON FOOTPRINT Oslo EGE: 10,000 t CO2e/year DCWATER/Blue Plains: From 47,000-73,000 t CO2e/year Davyhulme: 32,000 t CO2e/year Bran Sands: 50,000 t CO2e/year [The] thermal hydrolysis pretreatment system at Davyhulme will reduce [United Utilities ] carbon footprint by 8% - the equivalent of removing 270,000 cars off the road for 30 years., March-April 2009, Worldwater Cardiff + Afan: 37,000 t CO2e/year

Only CAMBI THP with negative Carbon Footprint (Asia study)

CAMBI THERMAL HYDROLYSIS AT DCWATER, WASHINGTON DC 130,000 t DS/y, 4.3 mill. p.e. /390 MGD / 1350 MLD Greenhouse gas reduction: 28% - 39% or 47,000 to 73,000 metric tons of CO 2 e (equivalent) per year, compared to traditional/today s solution CANCELLED traditional design CAMBI THP New solution Planned traditional design: + 8 egg-shaped digesters (4x4.5 MG*) + 4 batch silo digesters (4x2.5 MG*). Total volume: 46 MG =174,000 m 3 ) CANCELLED CAMBI Design Chosen: Cambi THP (600 m 3 ) + 4 digesters, each of 3.8 MG* = 58,100 m 3 (1/3 of traditional volume) 35% overall CAPEX savings compared to traditional design OPEX savings = 20 mill. $/year from today s solution *MGD = Million gallons

SOUTHERN VIEW OF BMP (DCWATER, BLUE PLAINS) PROJECT SITE

1.5 BLD (391 MGD) plant capacity Largest AWTP in the world 28

CAMBI TRAIN, DCWATER

CAMBI OVERVIEW, DCWATER

CAMBI GALLERY, DCWATER

Agriculture, Ag is the backbone of the DCWATER biosolids program 90% of material is land applied WITHOUT BIOSOLIDS (chemical fertilizer) WITH BIOSOLIDS: -Drought resistance -N+P and micronutrients DC Water and Sewer Authority Biosolids Reuse Program 3 2

DC WATER, O&M SAVINGS WITH CAMBI THP O&M Cost Comparison* of Digestion Project (Biosolids Program) vs. Lime Stabilization (continued and expanded) with 3% annual inflation. Source: Maximizing Benefits from Renewable Energy at Blue Plains AWWTP RESIDUALS & BIOSOLIDS CONFERENCE 2010, SAVANNAH, GA, USA, May 2010, Alan B. Cooper, Leonard Benson, Walter Bailey, Ernest jolly and William Krill

BASIC SLUDGE STRATEGIES - WORLDWIDE Digested cake is at the road fork of strategic planning of biosolids -- Best Practical Environmental Option is cake to agriculture but one may need to have the back up situation of subsequent drying/incineration in larger projects Digested cake to agriculture based on stackable stable low volume product it s a transport business is pasteurised product needed? Digested cake Class A Drying makes no sense for agriculture at most transport costs only if agriculture is not available or too expensive No agriculture Agriculture Capital and operating costs based on tonne of water evaporation or transport Drying 1MWh/tWE Drying size based on dewatering/cake volume Incineration 2MWh/tWE Autothermic cake is preferred ~35% DS Lowest cost option Cost/t transport Recycling of nutrients

CAMBI Project Profiles, examples New build digestion - avoids digester construction and reduces biosolids eg Dublin, DC Water, Brussels, Vilnius New build digestion plus regional plant - avoids digester construction and closes uneconomic small plants maximizes cogen, minimises biosolids eg Aberdeen, Bran Sands, Newcastle Digester upgrade plus class A - full Cambi replaces digester build out, eg Naestved, Kapuciska, Fredericia, Riverside (all high WAS plants) Digester upgrade class B WAS Cambi replaces digester build out (7.5% DS feed), eg Santiago, Munich (incineration), Digester upgrade to regional plant using existing digesters and import of raw sludge avoids digester build out and closes uneconomic small plants maximizes, cogen, minimises biosolids - eg Cotton Valley, Whitlingham, Manchester Daveyhume, Chertsey, Raw dryer, incinerator or lime stab replacement with new build economically driven larger plants eg DC Water, Newcastle, Cardiff, Swansea, Beckton, Crossness Codigestion & food waste: Combining TH of sludge and food waste, eg Ecopro, Växjø, Anyang City (Korea), Stavanger, Lillehammer (only foodwaste), Oslo (only food waste) New build to replace aerobic digesters??

Cambi projects combined with/replacing dryers and incineration in the UK Project name Population Changed From Bran Sands 1.3 million Drying XXX Cardiff 0.4 million Drying XXX Newport/Afan 0.2 million Drying XXX Swansea 0.4 million Drying XXX Manchester 3 million -Part Incineration XXX 2010 2011 2012 2013 Beckton 1 million -Part Incineration XXX Crossness 1 million -Part Incineration XXX Riverside 1 million -Part Incineration XXX Sheffield 1 million Incineration XXX Bradford 0.7 million Incineration XXX Hull 0.5 million Drying XXX Edinburgh 0.7 million Drying XXX Total 11.2 million 20% of UK sludge converts to THP in 3 years from energy intensive drying or incineration

Cambi models, B2, B6 and B12

CAMBI THP PLANT/PRODUCT CAPACITIES, METRIC (30 min. retention*) Product name (THP config., no. of reactors times no. of lines) Number of lines Plant size/ total number of reactors Max. daily capacity: Mg (tonnes) DS/day @ xx% DS feed to THP Suggested annual avg. throughput: Mg (tonnes) DS/y MGD (mill gal.)/day, WWTP equiv. MLD (million litres/day), WWTP equiv. M3/se-cond WWTP equiv. M3/day WWTP, equiv. Approx. Pop. equiv., traditional P + WAS sludge Approx. Pop. equiv., extended aeration sludge 16.5 % DS 18 % 80 g/cap/d 40 g/cap/d THP-B2-1 1 1 4.9 1,500 4 16 0.2 16,200 51,400 102,700 THP-B2-2 1 2 9.7 3,000 9 32 0.4 32,400 102,700 205,500 THP-B2-3 1 3 14.6 4,500 13 49 0.6 48,600 154,100 308,200 THP-B2-4 1 4 19.4 6,000 17 65 0.8 64,800 205,500 411,000 THP-B6-2 1 2 35 10,900 31 118 1.4 117,700 373,300 746,600 THP-B6-3 1 3 53 16,300 47 176 2.0 176,000 558,200 1,116,400 THP-B6-4 1 4 70 21,700 68 234 2.7 234,400 743,200 1,486,300 THP-2xB6-3 2 6 105 32,600 31 352 4.1 352,100 1,116,400 2,232,900 THP-2xB6-4 2 8 140 43,400 47 469 5.4 468,700 1,486,300 2,972,600 THP-B12-3 1 3 77 23,700 68 256 3.0 255,900 811,600 1,623,300 THP-B12-4 1 4 102 31,600 90 341 4.0 341,300 1,082,200 2,164,400 THP-2XB12-3 2 6 153 47,400 135 512 5.9 511,900 1,623,300 3,246,600 THP-2XB12-4 2 8 204 63,300 181 684 7.9 683,600 2,167,800 4,335,600 THP-3XB12-3 3 9 230 71,200 203 769 8.9 769,000 2,438,400 4,876,700 THP-3XB12-4 3 12 307 94,900 271 1,025 11.9 1,024,900 3,250,000 6,500,000 THP-4XB12-4 4 16 409 126,500 361 1,366 15.8 1,366,200 4,332,200 8,664,400 THP-5XB12-4 5 20 511 158,100 451 1,708 19.8 1,707,500 5,414,400 10,828,800 *VSR guarantees can be given against Cambi s on-site presence, feed spec, and guarantee specs

CAMBI THP B2, 1-4 Reactors, Capacities (30 min. retention*) MarkII Avg. yearly capacity** (@16.5%DS feed) Metric t DS / y B2-1 B2-2 B2-3 B2-4 < 1,500 x 1,500 3,000 x 3,000 4,500 x 4,500 6,000 x Max t DS/day 4.9 9.7 14.6 19.4 MarkII Avg. yearly capacity** (@16.5%DS feed) US t DS / y B2-1 B2-2 B2-3 B2-4 < 1,700 x 1,700 3,300 x 3,300 5,000 x 5,000 6,600 x Max t DS/day 5.4 10.7 16.1 21.4 *VSR guarantees can be given against Cambi on-site presence, feed spec, and guarantees specs **Calculated based on assuming peak capacity 20% larger than average capacity

CAMBI THP B2, In workshop

B2 Product Overview: Plug & Play Product Fully pressure tested and FAT tested ex-works Integral instrument air, MCC and control system Available with or without GRP building Footprint size of a 40ft shipping container Max capacity ~6,200TDS/y +20% peak (4 Reactors) Standard Cambi batch processing but with MK2 implementation

B2 Dimensions: Example GRP building. Length - 12.2m Depth - 2.45m Height - 4.10m

B2 Interface Points: Electrical Feed Sludge Feed Steam Feed Condensate outlet Foul gas outlet Final Effluent Feed 2 Digester Feed outlets Vessel Drains 3rd Digester Feed outlet (optional)

B2 Logistics: The package unit is designed to be transported and settled as one, this includes the building where applicable. Lifting spreader bars are required during off loading, these can be provided by the lifting company or supplied with the B2 unit as optional extras. Should the package unit be required to fit within an existing building that has limited access it is possible to split the package in two locations after initially lifting it to the floor. Steelwork in red is for transport and lifting only. To be removed when the unit is settled.

Small packaged Cambi (B2 size), Amperverband

COMPACT PLANTS EXAMPLE: NAESTVED (DK) 1,600 t DS/year extended aeration sludge

CAMBI THP - B6, 2-4 Reactors, Capacities (30 min. retention*) MarkII Avg. yearly capacity** (@16.5%DS feed) Metric t DS / y B6-2 B6-3 B6-4 6,000 10,900 x 10,800 16,300 x 16,300 21,700 x Max t DS/day 35.0 53.0 70.0 MarkII Avg. yearly capacity** (@16.5%DS feed) US t DS / y B6-2 B6-3 B6-4 6,600 12,000 x 12,000 18,000 x 18,000 23,900 x Max t DS/day 39.0 58.0 77.0 *VSR guarantees can be given against Cambi on-site presence, feed spec, and guarantees specs **Calculated based on assuming peak capacity 20% larger than average capacity

B6 Live Projects Lindum B6 x 2 Sludge - Norway Växjö B6 X 2 Codigestion-Sweden Vigo B6 X 3 Sludge - Spain Crawley B6 X 3 Sludge UK Long Reach B6 X 3 Sludge UK IVAR B6 X 2 Codigestion Norway Seafield 2 X B6 X 3 Sludge UK Burgos B6 X 2 Sludge - Spain Mjøsa B6 X 2 Biowaste - Norway

Lindum, Sludge Centre

Lindum Norway Cambi, FIRST THP B6 PLANT

FULL SCALE EXPERIENCE WITH SMALL /COMPACT THP, B2 + B6 Former: Naestved, Niagata, Amperverband Lindum THP plant (Drammen Norway) Sludge center / Codigestion Start-up: March 2012 Operation: B-6 Conventional & MK-II Type of plant: 1 stream 2 reactor system. Type of reactor: B6 20 minutes from Cambi HQ Experience Design, build and operate first B6 project Plant is already converted into MK-II Benefits in modular construction

LINDUM, NORWAY 6,000 metric tonnes DS/year 1 x 3,000 m³ digesters transport 2-reactor Cambi THP 1,5 MW electricity + cogen steam from THP Pasteurized product Reduced energy for drying and transport High performance digestion Half the original cake volume

Assembling of B6 at Lindum 3 weeks mechanical assembling of THP on site All modules loaded on concrete slab in 4 days Two mech. erectors during the three weeks period for completion on site.

Installation philosophy for the modules Last Step: Connection Pipes between THP and interfaces

Energy Central (Steam Boiler) Ready to apply connections; biogas, water and power in, steam out to THP

Energy Central (Steam Boiler) A look inside the Energy Central

Växjö B6 X 2 - Codigestion sludge and biowaste Under construction Commissioned by July 2014 First lifting

Växjö B6 X 2 - Codigestion sludge and biowaste Under construction Commissioned by July 2014 First lifting

Växjö B6 X 2 - Codigestion sludge and biowaste Under construction Commissioned by July 2014 Second lifting

Vigo B6 X 3 - Sludge

Crawley B6 X 3 - Sludge

Seafield, 2xB6-3 (New contract) A 75 tds/day retrofit (100 tds max) to existing digestion, mixed sewage sludge

CAMBI B12 THP 3-4 Reactors, Capacities (30 min. retention*) MarkII Avg. yearly capacity* (@16.5%DS feed) Metric t DS / y B12-3 B12-4 21,700 23,700 x 23,700 31,600 x Max t DS/day 77 102 MarkII Avg. yearly capacity* (@16.5%DS feed) US t DS / y B12-3 B12-4 23,900 26,100 x 26,100 34,800 x Max t DS/day 85 113 *VSR guarantees can be given against Cambi on-site presence, feed spec, and guarantees specs **Calculated based on assuming peak capacity 20% larger than average capacity

MEDIUM: THE FREDERICIA PROJECT, DENMARK 8000 t DS/y

COTTON VALLEY, MILTON KEYNES, UK

LARGE PLANTS: BRAN SANDS, UK 40,000 tons DS/year Cambi THP B12-2x4 reactors 3 x 6300 m3 digesters

BRAN SANDS, TEES VALLEY, ENGLAND 36,000 tonnes DS/year Digester loading up to 6 kg VS/m3/ day (2-3 x conventional digestion) 10-12% DS feed to digesters >60 % VS reduction 5.6 MW electricity generation >30% dry solids Class A cake

BRAN SANDS, TEES VALLEY, ENGLAND Digestion Thermal Hydrolysis RSTC Phase 2 Digested Sludge Cake Blending and Dilution Biogas Cake Reception CHP Plant RSTC Phase 1 Electricity to ASD and RSTC Plant Excess Electricity Exported to ETW

BRAN SANDS, TEES VALLEY, ENGLAND Blended Sludge Buffer Tanks Pulpers Adiabatic Coolers Reactors Flash Tanks

Mapocho, Santiago Chile, WAS only THP Cambi Degremont / Agbar JV January 2012: Commissioning

2x3 B12 Cambi Cardiff, Wales, UK Cambi plant in Cardiff, UK

Modular Design

Modular Design

BIOWASTE & CODIGESTION REFERENCES Lillehammer plant 2001, cap. 14 000 t/a Outputs: El/CHP, bio-fertilizer to farmers Ecopro plant, 2008, cap. 30-40 000 t/a Outputs: El/CHP, bio-fertilizer to farmers Oslo biogas plant, 2012, cap. 50 000 t/a Outputs: Upgraded biogas to vehicle fuel gas, bio-fertilizer to farmers

THE OSLO FOOD WASTE BIOGAS & FERTILIZER PLANT, BY CAMBI

PROCESS FLOW ILLUSTRATION OSLO PLANT

THE OSLO BIOGAS PLANT (RBA) KEY FIGURES Start up 2013 Cap. 50 000 t/a (food waste 28% DS) Products produced: Upgraded liquefied biogas to vehicle fuel gas Bio-fertilizer to farmers. Add ons: Double waste pre-treatment line (100% stand by) Biogas upgrading system (pre-treatment) Mini LNG system Reject water system (evaporator) Biogas: LBG production 10.800 kg/day CH4 4.5 MNm3/a= 26 300 liters Energy output 5.7 MW Supports 135 buses in Oslo with renewable fuel

LARGE CAMBI, BIOWASTE, OSLO EGE

SCADA OPENING PICTURE, OSLO PLANT

WASTE QUALITY & CHALLENGES Optimal waste quality (In your dreams!) Waste quality as received! (Get used to it!)

MATERIAL TO BE TREATED-FEEDSTOCK Source separated household waste Heavily packed waste (supermarkets) Animal By products (Cat. II & III) Other biodegradable material

SHORT MASS BALANCE Food waste 45 000 t/a Liquid waste 5 000 t/a Average DS (28%)14 250 tds/a Biogas from landfill 990 kw 14 250 t steam to THP Bio-fertiliser Concentrate liquid 11 700 t/a (17% DS) Solid 15 300 t/a (25% DS) Vehicle fuel gas (lbg) PRE-PROCESSING AD PLANT Energy demand: 0,8 MW thermal BIOGAS Recycled process water 45 000 m3/a Biogas production 6 400 000 m 3 (avg. 65% CH 4 ) (450 m 3 / tds to digester) VS conversion >70% Reject 10-20% (total) Makeup Water a) 55 700 t b) 15 000 t (steam) Reject water treatment To WWTP 39 000 m 3 /a

PROCESS OVERVIEW VEHICLE FUEL- OSLO PLANT Biogas production Biogas pre-treatment Water Scrubber CO 2 Polishing LBG Truck Filling Station LBG Storage System Biogas liquefaction process

QUALITY OF REJECT FRACTIONS & PRE-TREATMENT SOLUTIONS Basis in Ecopro design & solution What can we do better? New systems in the market must be proven solution Tests and evaluations What systems can we not use? Clean or unhygienic handling? (especially with poorly sorted waste) Evaluated and rejected by Cambi - Pulper systems, Drum screening systems - Cannot fulfill EGEs quality requirements - Low DS content, <10% Evaluated and selected by Cambi, BioSep The system has unique features - Extremely clean reject - Low loss of food waste - Clean accept (treated food waste) - Low installed power (55 kw) - High DS content 25-32%, alllows 16-18% DS to THP with higher steam efficiency - Low wear

TYPICAL MASS BALANCE Product I/O Comments Biowaste 1000 kg Food waste ~80% (VS content) Sorting reject+grit 100-200 kg Typical 10% Organic reject 10% Inorganic material Bio-fertilizer (output) 300 kg/t To agriculture use Effluent water (output) 1,75 m3/t To agriculture use or to WWTP Biogas at ~65% CH 4 125 140 m 3 /t 150 m 3 on pure biowaste (70% VSR) kwh Electricity (gas engine) 250-380 kwh/t CHP

BIOFERTILISER QUALITY & HANDLING 1 m3 of biorest contains: 8-10 kg Nitrogen, whereof 25% is ammonium NH4-N 1,2-1,3 kg phosphorus 2,5 kg kalium Issues: Minimum odour < 0,5% plastic in weight Good nutrient content (comparable to mineral fertiliser) Not increased amount of work for the farmers Optimal logistics and storage system A cost saving product for the farmers Bio-fertilizer contract: Felleskjøpet Agri will dispose all the produced bio-fertilizer, 90 000 m3 bio-fertilizer will cover 30 km2 land

CO-OPERATION POSSIBILLITIES WITH NATIONAL PARTNER Most suitable co-operation models to avoid high costs for all parties (and especially the end customer) Civil Define scope of supply Engineering & design Procurement Installation Completion & commissioning Guarantees (-Performance test/guarantees) The main objective is to be competitive in all projects

THE OSLO BIOGAS PLANT (RBA) KEY FIGURES Start up 2013 Cap. 50 000 t/a (food waste 28% DS) Products produced: Upgraded liquefied biogas to vehicle fuel gas Bio-fertilizer to farmers. Add ons: Double waste pre-treatment line (100% stand by) Biogas upgrading system (pre-treatment) Mini LNG system Reject water system (evaporator) Biogas: LBG production 10.800 kg/day CH4 4.5 MNm3/a= 26 300 liters Energy output 5.7 MW Supports 135 buses in Oslo with renewable fuel

SUNDET, VÄXJÖ (SWEDEN) CO DIGESTION KEY FIGURES Design parametres THP type B6-2 Under construction 8655 tds/year (to THP) 60% Biosolids 40% Biowaste Start up Oct 2014

ANYANG CO DIGESTION PLANT SOUTH KOREA THP type B12-4 Under construction Design parametres 28 000 tds/year 65% Biosolids 35% Biowaste Start up 2016 Cambi THP

IVAR CO DIGESTION PLANT NORWAY THP type B6-2 Under construction Design parametres 11 800 tds/year 25% Biosolids 75% Biowaste Start up 2015

ECOPRO, NORWAY Processes organic waste and sludge from 51 municipalities in mid-norway Started up March 2008 Cambi construction contract + operations Satisfies EU animal by-product regulation

ECOPRO CO DIGESTION KEY FIGURES Design parametres 9100 tds/year 40% Biosolids 60% Food waste Start-up 2008

Running data from Ecopro Sludge & Food Waste Codigestion nov.10 Dec.10 jan.11 Raw materials in Sludge ton 1 208 1 358 1 374 Biowaste ton 1 836 1 504 1 538 Animal By-products ton 244 211 257 Total raw materials ton 3 288 3 073 3 169 Total pre-thp rejects ton 424 476 538 Net raw material in tonn 2 863 2 596 2 631 DS digester feed % 9.9 % 9.9 % 9.8 % VS digester feed % 82.0 % 85.4 % 86.6 % COD digester feed mg/l 177 500 144 000 159 000 VS of DS digesters % 68.6 % 69.0 % 69.9 % COD digesters mg/l 57 050 43 175 45 950 VS Reduction over digesters. mass balance % 63.4 % 64.2 % 64.8 % COD Reduction over digesters. massbalance % 67.9 % 70.0 % 71.1 % DS Biorest (dewatered final product) % 21.0 % 25.0 % 25.0 % Produced gas knm3 372 346 387 Produced electricity MWh 595 519 597