Joe Higgins

Sustainability and Wastewater Treatment

Session 4: Water and Energy

Joe Higgins, Veolia

Who are Veolia?

Why are we interested in Sustainability & Wastewater

Treatment?

3 Sustainability & 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.

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)

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.


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)

Veolia Concept for Wastewater Treatment

NOT A WASTE WATER TREATMENT PLANT…

From a traditional WWTP………….


…to a production plant (Veolia Biorefinery)


Carbon Balance

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


Reaching energy neutral status via the various treatment stages of wastewater

treatment

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


Primary ~ Future alternative: UASB

13

Primary

Wastewater

Activated Sludge Tertirary UASB

Biogas

Electricity consumption reduction to ca. 0.25 kWh/m3

Sludge production reduction by > 30%

WWTP self sufficient increase from ~60% to 100%


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

Secondary Treatment – Future N Removal without COD

15 15

Primary

Wastewater

Activated Sludge Tertiary HYBAS ANITA Mox


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)


17 17

Tertiary treatment to facilitate reuse, & reduce water footprint e.g. Barcelona (4m3/sec)

17

Generating Energy & Value Sludge Area

Creating Value from Sludge

Sludge Area: Thermal Hyrolysis + MAD

20 20

MAD & Dewatering

Thermal Hydrolysis:

BioTHELYS or EXELYS

+25-30% electricity production & -50% on sludge volume


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%)


Sludge Area: Drying

22 22

MAD & Dewatering

Thermal Hydrolysis:

BioTHELYS or EXELYS

Drying Solia™

< 3% of Energy Input of conventional Thermal

Dryer


Sludge Area: Co-Digestion

23 23

MAD & Dewatering

Thermal Hydrolysis:

BioTHELYS or EXELYS

IMPORT

Co-Digestion

Example South Pest WWTP


Result ?

Result

25 25

Wastewater

~ -25 to – 42 % TOTAL energy savings

+ 20-35 % energy produced


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

Case Study: Allanfearn WWTP


Efficiency Review


Operational interventions


Operational interventions


WWTP of Future

The Wastewater Treatment Plant of the Future


Billund BioRefinery


Joe Higgins Technical & Sales Director, Water

Veolia Ireland [email protected]

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 [email protected]

Sustainability & Waste Water Treatment Water and Energy Session DCU Water Institute Conference 27 – 28 November 2014

mailto:[email protected]

mailto:[email protected]

Environment

Joe Higgins