seq water cycle workshop - urban water security research … … · provide water and wastewater...

© 2012 Queensland Urban Utilities QUU reference TEM142

SEQ Water Cycle WorkshopSEQ Water Cycle Workshop

© 2012 Queensland Urban Utilities 2© 2012 Queensland Urban Utilities 2QUU reference TEM142

Who QUU are

Current Challenges

What we are doing – Strategic Opportunities

Climate

Biosolids

Energy Strategy

Sustainable Options

Future Challenges


Local Government owned utility

Provide Water and Wastewater service to customers in:SomersetLockyer ValleyScenic RimIpswichBrisbane City Council

Manage -8885 km waterline9076 km sewage28 Sewage Treatment Plants482 Water and sewage pump stations


SEQ cost of living Rapidly increasing populationIncrease cost of operation and capital assets

↑Electricity↑Transport↑Water↑ChemicalsClimate change impactsWho is QUU i.e. we are still an ‘emerging’ companyWhat are our customers ideas / wants about:

Carbon tax / other legislation changes / Water reform

WaterCarbonEnergy


Climate Change StrategyClimate change mitigation framework (2012-17)Climate change adaption framework (2012-17)

Biosolids Strategy (pending Board) (30 year Plan)Sustainable Sewage Treatment Plants

Zero emission STP targetCorporate Plan linkagesProvide infrastructure planning that meets the requirements of all stakeholders and enables community growthOptimise our asset base with value added initiativesPlan and deploy efficient and effective technology systemsContinue to comply with all regulatory requirements

Developed strategies and goals to guide us

Our Purpose “Enrich Quality of Life”


Relevance is – “power – water – carbon” major userWhat are Biosolids

Biosolids are the bodies of the micro-organisms that treat our ‘wastewater’

Medium term five steps Anaerobic digestion (↑gas↓volume)Centralise (maximum efficiency)Enhanced digestion (↑gas↓volume)Drying (↓volume)

Side Stream (↓volume)

Potential


Networks / SchemeCentralised versus DecentralisedLocal rural / small communities

Sewage Treatment Plants – zero Zero emission STP target

FernvaleLockyer East

FutureLagoonsTrickling fillersWetlandsNutrient offset scheme opportunities

?Low Density versus High DensityEnergy Production: Net Export?


Resource Streams•Carbon•Water•Energy•Nutrients

Nutrient / Energy

What should our Infrastructure strategy be?YDrain?

Water• Drinking• Recycled• Rivers

Environmental needs

Community wants / needs understanding

Legislation New / Old

Climate Change

Reduces Resource

AvailabilityCost Living

Nutrient(air) GHG

Nitrogen removal

by-products

Energy(heat)

Resource Resource oror

DrainDrain

Where should it be – city / agriculture/ power station?

Biosolids


Step 2: Product Stream (Select From)

Step 1: Anaerobic(↑biogas ↓volume)

Nutrient Recovery

Low Energy N Removal

Algal Fuel Cells

Dow Industry Polymer

Not Yet Known

Nutrient Rich H2O

Nutrient Low H2O

Renewable Energy

QUU FEED

OTHER


PaidPaid•Levy Coal Seam Gas • Solve CSG water

• Water → Farm / Food• CSG → energy–pump

• Pipe = energy producer hydro• Keep Western Corridor running•• Use existing assetUse existing asset•• Ready for next droughtReady for next drought

PositivePositive

QUUSTP Western

Corridor Water

Extract Water

Coal Seam Gas

Farmer

Recharge Aquifer

Food Farm

Lockyer Food Bowl


Link Carbon-Energy-Water to other researchWhat is best use water (and nutrients)?

CarbonDo we make Biogas?How do we use to treat nitrogen / nutrients?Best to land?Send to coal fired power?

Supplied by


Food SupplyRecycle H20 (↑N ↑P)Dam / River H20 plus STP Fertilise

Centralise / Decentralise Rule of thumb for use; water supply and sanitation designE.g. Fitzgibbon versus Ripley

What’s Next?

seq water cycle workshop - urban water security research … … · provide water and wastewater...

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