new approaches and technologies for wastewater treatment · 2017-08-29 · new approaches and...
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New approaches and technologies for wastewater treatment
Collaboration at the R&D-facility Hammarby Sjöstadsverk for research, development and demonstration
Christian Baresel – IVL Swedish Environmental Research InstituteAleksandra Lazic – Xylem Inc
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The main problem: A treatment facility
Challenges
Use of energy and chemicals
Greenhouse gas emissions
Treated water is not clean enough
Emissions also pose health risks
Sludge a problem (even if often
denied)
Valuable resources not used
Natural waters get polluted
Right approach for a sustainable society?
Greenhouse gases
Partly treatedEffluent
Contaminatedsludge
Energy/Chemicals
Wastewater
Wastewater treatment plant
Secondary impacts
Emissions during production (chemicals,
energy, materials)
Use of natural incl. fossil) resources
Deterioration of the environment by direct
emissions (off-gas, effluent and sludge)
High costs
High impact
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The solution: A resource facility
Opportunities
Water and sludge as resource
Net energy production
Nutrients recovery/reuse
Emission control
Water reuse
Sustainable production of
energy and resources
Market opportunities
EnergyNutrients
Sewage Water reuse
Resourcefacility
Pollutant control
Secondary impacts
Emissions during production (chemicals,
energy, materials)
Use of natural incl. fossil) resources
Deterioration of the environment by direct
emissions (off-gas, effluent and sludge)
Lower costs
Less impact
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TODAY
Imbalance
WWTPDrinking water
TODAY
SocietyRawwater
Treatment facility
Effluent
Sewage
WWTP
Drinking water
Society
Rawwater
Treatment facility
Effluent
Sewage
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QUALITY
IN ≈ OUTMakes the balans
Resource facility
TOMORROW
N & PBioenergy
Pollutants
N & P
Bioenergy
Society
Society
Drinking water
Drinking water
Pollutants
Resource facility
Reuse Reuse
Reuse
ReuseReuse
Reuse
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Quantity problem can be controlled!
Quality problems can be controlled! reduced environmental damage and health risk!
Most problems with environmental damage in the aquatic
environment (both known and unknown) can be prevented
and eventually natural systems can be restored.
Functioning/restored ecosystem services
Sustainable development and new market for innovations!
Green growth!
Towards sustainable society!
So what are we waiting for?
Side effects?
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Sustainability evaluation of Non-potable water
Reuse systems
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Xylem Confidential8
Hammarby Sjöstadsverk – R&D facility
• Ambition: To facilitate long-term cooperation between researchers, municipal
wastewater treatment plants, and industry
• Partnership for faster development
• Xylem uses Hammarby Sjöstadsverk R&D platform (owned by IVL) to test
technologies. • Operation and maintenance of the plant
• Access to various municipal raw wastewater
• Access to wide source of technical, fundamental, and applied knowledge
• Research on non-potable water reuse conducted here by Xylem & IVL since 2012
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Treatment Trains for NP MAR
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Sustainability Factors
Environment
LCA
Social
Quality
Economic
LCC
• The Life Cycle Assessment (LCA)
informs on the environmental impact of
the solution
• Full system Life Cycle Cost (LCC)
adapts the solution to the economic
limitation
• The adapted effluent quality leads to
safety at the point of use and social
acceptance
Inform and influence customers on the best environmental
and financial reuse solution
• Optimal solutions vary based on plant size, local and regional
conditions, requirements, flexibility, etc.
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LCA / LCC modeling - approach
1. Predict Performance
2. Design Full-scale
solution
3. Assessment and Evaluations
System Piloted (8 systems)
SBR Tertiary
FiltrationDisinf.
Eff.Inf.
Effluent
Quality (BOD, SS,
N, P, MP)
Scale-up to:
20 000 PE; 100 000 PE; 500 000 PE
LCA & LCC
(10 LCA KPIs
and 3 LCC
KPIs)
LCA&LCC model
LCA&LCC
model
LCA&LCC
model
Energy Chemicals
Waste Waste
Energy Chemicals Energy Chemicals
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Commercial Impact
TertiarySecondary Disinfection+ +
Improved Offers
Optimized Reuse Solutions
• Denitirfication Capacity
• Advanced Process Control
• Total P effluent add on
• Ozone + BAF for reuse/WW
• Systems adapted to local and
regional requirements
• Lowest possible life cycle costs
• Best micropollutant reduction
• Most environmental and
financial sustainable solution
• Unmatched process guarantee
+ +
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Thanks
[email protected], www.hammarbysjostadsverk.se
[email protected], www.xylem.com
Christian Baresel – IVL Swedish Environmental Research Institute
Aleksandra Lazic – Xylem Inc