phosphorus flows, policy and perspectives anders nättorp ......switzerland phosphorus flows, policy...
TRANSCRIPT
Regions implementing sustainable phosphorus management
Switzerland
Phosphorus flows, policy and perspectives
Anders Nättorp
Institute for Ecopreneurship, School of Life Sciences, FHNW
Outline
• Switzerland • Sludge treatment
• Phosphorus flows
• Swiss legislation • Decree on solid waste
• Fertilizer legislation
• Perspectives
Institut für Ecopreneurship - Unternehmen für die Umwelt
Countrywise Sewage Sludge Disposal in the EU
0
250000
500000
750000
1000000
1250000
1500000
1750000
2000000
AT BE BG CY CZ DE DK EE ES FI FR GR HU IE IT LT LU LV MT NL PL PT RO SE SI SK UK CH
other
landfill
application to land
incineration
Institut für Ecopreneurship - Unternehmen für die Umwelt
Source: Environmental, economic and social impacts of the use of sewage sludge on land, part I:
Overview report, milieu Ltd, WRc, RPA, 2010, http://ec.europa.eu/environment/waste/sludge/index.htm
Dry
ma
tte
r (t
o/y
ea
r)
Agriculture 42%
Incineration 27%
Switzerland
8 Million inhabitants
Landfill of organic materials forbidden since 2000
Sewage sludge not used in agriculture since 2006
->100% incineration
Institut für Ecopreneurship - Unternehmen für die Umwelt
Picture:
Marcel Wiesweg,
creative commons
WWTP Mono-
incineration Landfill
MSWI
Drying Cement works 25%
25%
50%
Landfill
Current sewagee sludge treatment
5’900 t P
29’000 t P
30’000 t P
3’000 t P
6’100 t P
Phosphorus Cycle in Switzerland
Revised mass
flow analysis
foreseen for
spring 2015
Swiss Legislation on waste
Landfill of organic materials forbidden since 2000
Sewage sludge not used in agriculture since 2006
New decree on solid waste planned for end 2015
Phosphorrich waste
– Sewage sludge and meat and bone meal
– Recovery after 5 years (or separate landfill or ash another 5
years)
– Implementation aid with
– BAT/ yield
– plant availability
Institut für Ecopreneurship - Unternehmen für die Umwelt
Swiss Legislation on fertilizer
Sewage sludge classified as recycling fertilizer (DüV)
Recycling fertilizer (ChemRRV)
No direct use of sewage sludge allowed
Low limits for heavy metals
Today no commercial process for recovery possible
Introduction of mineral recycled fertilizer category planned
Min P2O5, plant availibility,…(DüV), contaminant limits (Chem RRV)
Potential materials are sewage sludge ash, meat and bonemeal ash, wood ash
The goal is to reduce the heavy metal input to the soil!
Samuel Vogel, FOAG,
September 2014
Perspectives
Development in Canton Zürich
RRB 572/2007: future disposal of sewage sludge must ensure
phosphorus recovery and good energy use
Preevaluation in 2008 of monoincineration for all 1.3 Million
inhabitants
Negociation of common sludge disposal for the entire canton
Project for monoincineration plant -> accepted with 97% in 2013
Start of plant in 2015
Institut für Ecopreneurship - Unternehmen für die Umwelt
Leo Morf, AWEL,
September 2014
Picture: ERZ
Perspectives
Development in Canton Zürich
RRB 572/2007: future disposal of sewage sludge must ensure phosphorus
and good energy recovery
Phosphorus recovery technology evaluation by FHNW in 2009
Support of development of LEACHPHOS process.
Optimisation and evaluation of alternatives to recovery process ongoing.
Choice of phosphorus recovery process expected summer 2015
Institut für Ecopreneurship - Unternehmen für die Umwelt
Leo Morf, AWEL,
September 2014
WWTP Digestion Dewatering Drying Mineralization Landfill
Conformeffluent
. .
Waste water
Phosphorus
1
Phosphorus
2
Phosphorus
3
System boundary
Picture:
Lüscher& Nättorp, 2009
WWTP Mono-
incineration Landfill
MSWI
Drying Cement
works 25%
25%
50%
Landfill
Timeline of Swiss waste decree
Hearing finished November 2014
Information from FOEN in summer 2015
Publication of new decree in autumn 2015
Current discussion
transition period 5 years too short?
can the incineration in cementworks and MSWI be combined with recovery?
how to distribute the cost?
Perspectives
Switzerland
Thank you for your time and your attention!
Contact:
Anders Nättorp
FHNW, Institute for Ecopreneurship
[email protected] +41 61 467 4442
Do you have
questions?
Institut für Ecopreneurship - Unternehmen für die Umwelt