Joe Higgins
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Veolia is an international company focused on sustainability and resource management. They discussed how wastewater treatment can become more sustainable by reducing energy and resource usage at various treatment stages. Their goal is to make plants energy neutral or producers of energy through techniques like advanced sludge treatment using thermal hydrolysis, co-digestion, and converting facilities into "biorefineries" that produce resources in addition to treating water. Case studies showed how optimizing treatment processes could save 25-42% of energy usage and increase energy production by 20-35% at a sample wastewater treatment plant.
Joe Higgins
- 1. Sustainability and Wastewater Treatment Session 4: Water and Energy Joe Higgins, Veolia
- 2. Who are Veolia? Why are we interested in Sustainability & Wastewater Treatment?
- 3. 3Sustainability & Wastewater Treatment / November 2014 Veolia’s mission: Resourcing the world The world is still developing and needs new resources: natural resources, economic resources and human resources. We play our part by designing and deploying solutions for Resourcing the world: Developing access to resources: Veolia offers operational solutions that consume fewer environmental resources and are more economically efficient, so as to expand both the potential and the accessibility of the resources available. Preserving resources: Veolia develops solutions to conserve resources and optimize their use, while protecting their quality and efficiency throughout the use cycle. Replenishing resources: Veolia provides solutions for creating new “secondary” resources that will gradually offset the increasing scarcity of natural “primary” resources, generating new opportunities for social and economic development that protects the environment.
- 4. A complete mastery of the water / waste / energy cycle to serve our customers better Sustainability & Wastewater Treatment / November 2014 4 Water 94 million people supplied with drinking water 4,532 drinking water production plants managed 3,442 wastewater treatment plants managed Waste 51 million people provided with collection services on behalf of local authorities 38 million metric tons of waste recovered as materials and energy 570,000 business customers (excluding industrial maintenance) Energy 86 million MWh generated 4.5 million multi-family housing units managed 4,300 industrial facilities managed Sustainable development and customer competitiveness (2013 global data)
- 5. A unique network of Research and Innovation, matched with operational innovation throughout the organization. Innovation that is open to the world through the Veolia Innovation Accelerator program to identify, accelerate and deploy the most innovative start- ups on behalf of the environment, and enhance services to customers. Customer-focused innovation: a closed-loop innovation process between R&D and operations to deploy cutting-edge ecotechnology as quickly as possible. 5Sustainability & Wastewater Treatment / November 2014 Our capacity for innovation, at the cutting edge of environmental research 900 experts worldwide 7 specialized international research centers 220 academic and industrial partners 250 pilot sites Over 2,000 patents (2013 global data)
- 6. Veolia Concept for Wastewater Treatment
- 7. NOT A WASTE WATER TREATMENT PLANT… From a traditional WWTP…………. Sustainability & Wastewater Treatment / November 2014 7
- 8. …to a production plant (Veolia Biorefinery) Sustainability & Wastewater Treatment / November 2014 8
- 10. CARBON BALANCE (Hypothesis; 60g BOD/pe.d) 10 10 Primary Wastewater MAD & Dewatering Raw water 120g COD/d.PE ~ 0.4 kW/PE.day Electricity Potential CO2 35 g COD/d.PE Effluent 5 g COD/d/PE Excess Sludge 80 g COD/d.PE (66%) Sludge 40 g COD/d.PE Biogas 40 g COD ~0.05 kW/PE.day Electricity (assuming 33% Electrical Recovery from CHP) 1/3 in Biogas → Only ca. 50% Self Sufficiency Possible with CAS & MAD Activated Sludge 10 Sustainability & Wastewater Treatment / November 2014
- 11. Reaching energy neutral status via the various treatment stages of wastewater treatment
- 12. Primary 12 Primary Wastewater Activated Sludge Tertirary Increase Carbon Removal from ca. 25% to 70% →Less Energy required in Aeration →Production of Sludge with a higher calorific value i.e. increased biogas 12Sustainability & Wastewater Treatment / November 2014
- 13. Primary ~ Future alternative: UASB 13 Primary Wastewater Activated Sludge TertiraryUASB Biogas Electricity consumption reduction to ca. 0.25 kWh/m3 Sludge production reduction by > 30% WWTP self sufficient increase from ~60% to 100% 13Sustainability & Wastewater Treatment / November 2014
- 14. Secondary Treatment – Advanced Control 14 14 Primary Wastewater Activated Sludge Tertiary STAR ADVANCED CONTROL WITH OPTIMISED DESIGN Energy costs savings Aeration 10 – 30 % Mixing 25 – 75 % Internal pumping 25 – 75 % Chemical costs savings Metal, precipitation of Total-P 25 – 100 % External carbon 25 – 100 % Less Secondary Sludge production Increased bio-gas production 14
- 15. Secondary Treatment – Future N Removal without COD 15 15 Primary Wastewater Activated Sludge TertiaryHYBAS ANITA Mox 15 Sustainability & Wastewater Treatment / November 2014
- 16. Tertiary Treatment – Hydrotech 16 16 Primary Wastewater Activated Sludge Tertiary HYDROTECH Hydrotech Disc Filter: 46% lower carbon footprint than conventional sand filters: (- 2% Total Energy) 16 Sustainability & Wastewater Treatment / November 2014
- 17. 1 717 Tertiary treatment to facilitate reuse, & reduce water footprint e.g. Barcelona (4m3/sec) 17
- 18. Generating Energy & Value Sludge Area
- 19. Creating Value from Sludge
- 20. Sludge Area: Thermal Hyrolysis + MAD 20 20 MAD & Dewatering Thermal Hydrolysis: BioTHELYS or EXELYS +25-30% electricity production & -50% on sludge volume 20 Sustainability & Wastewater Treatment / November 2014
- 21. Sludge Area: Digestate Treatment -5% 21 21 MAD & Dewatering Thermal Hydrolysis: BioTHELYS or EXELYS Digestate ANITA™ Mox Veolia’s ANITA™ Mox; o 60% direct savings on oxygen required for Ammonia return o No carbon source needed o Reduction in sludge production (90%) & CO2 emissions (85%) 21 Sustainability & Wastewater Treatment / November 2014
- 22. Sludge Area: Drying 22 22 MAD & Dewatering Thermal Hydrolysis: BioTHELYS or EXELYS DryingSolia™ < 3% of Energy Input of conventional Thermal Dryer 22 Sustainability & Wastewater Treatment / November 2014
- 23. Sludge Area: Co-Digestion 23 23 MAD & Dewatering Thermal Hydrolysis: BioTHELYS or EXELYS IMPORT Co-Digestion Example South Pest WWTP 23 Sustainability & Wastewater Treatment / November 2014
- 24. Result ?
- 25. Result 25 25 Wastewater ~ -25 to – 42 % TOTAL energy savings + 20-35 % energy produced 25 Sustainability & Wastewater Treatment / November 2014
- 26. Result of Optimisation 26 100,000PE WWTP: CAS 100,000PE WWTP: Primary ,CAS, & MAD 100,000PE WWTP: Primary, Enhanced CAS, TH, & MAD Sustainability & Wastewater Treatment / November 2014
- 27. Case Study: Allanfearn WWTP 27Sustainability & Wastewater Treatment / November 2014
- 28. Efficiency Review 28Sustainability & Wastewater Treatment / November 2014
- 29. Operational interventions 29Sustainability & Wastewater Treatment / November 2014
- 30. Operational interventions 30Sustainability & Wastewater Treatment / November 2014
- 31. WWTP of Future
- 32. The Wastewater Treatment Plant of the Future 32 Sustainability & Wastewater Treatment / November 2014
- 33. Billund BioRefinery 33 Sustainability & Wastewater Treatment / November 2014
- 34. Joe Higgins Technical & Sales Director, Water Veolia Ireland Joe.higgins@veolia.com Thank You Sustainability & Waste Water Treatment Water and Energy Session DCU Water Institute Conference 27 – 28 November 2014 Joe Higgins Technical & Sales Director, Water Veolia Ireland Joe.higgins@veolia.com Sustainability & Waste Water Treatment Water and Energy Session DCU Water Institute Conference 27 – 28 November 2014