• Share
  • Email
  • Embed
  • Like
  • Save
  • Private Content
RECUWATT Conference - Joan Mata lecture
 

RECUWATT Conference - Joan Mata lecture

on

  • 745 views

SECTION II: CLIMATE CHANGE AND WASTE MANAGEMENT ...

SECTION II: CLIMATE CHANGE AND WASTE MANAGEMENT
“Some energetic and environmental aspects regarding the recycling of bio-waste" by Mr. Joan Mata, Professor of Chemical Engineering at the University of Barcelona

Statistics

Views

Total Views
745
Views on SlideShare
745
Embed Views
0

Actions

Likes
0
Downloads
93
Comments
0

0 Embeds 0

No embeds

Accessibility

Categories

Upload Details

Uploaded via as Adobe PDF

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

    RECUWATT Conference - Joan Mata lecture RECUWATT Conference - Joan Mata lecture Presentation Transcript

    • Outline of the presentation SOME ENERGY AND • Introduction ENVIRONMENTAL ASPECTS • Biowaste recycling: Energy, Material and  OF BIOWASTE RECYCLING environmental aspects • Potential of biowaste recyclingJOAN MATADPT. ENGINYERIA QUÍMICA.  UNIVERSITAT DE BARCELONA • Biowaste AD • Improvements on Biowaste AD (grid injection  and process) • Conclusions
    • Management of RW and Outline of the presentation Biowaste• Introduction Residual waste Biowaste• Biowaste recycling: Energy, Material and  environmental aspects• Potential of biowaste recycling• Biowaste AD• Improvements on Biowaste AD (grid injection  and process)• Conclusions
    • Most developed countries lead incineration Management of RW and option in Europe BiowasteResidual waste Biowaste IA’s through LCA show  % Incinerat dels RSU the advantages of option A, that is the energy recovery alternative
    • INCINERACIÓ A ESPANYA 10 Plantes: t/any % del total Asturias 94600 4.3 Baleares 255000 11.6 Total   Catalunya Besos 328000 14,9 Catalunya Catalunya Tarragona 180000 8,2 719000 Catalunya Mataró 170000 7,7 32,6%% Incineració a Catalunya: 16,5% Catalunya Girona 41000 1,9 Galicia  550000 24,9% Incineració a Espanya*:    9,9% Madrid 299000 13,6 Melilla 46000 2,1% Incineració a UE15:         22,8% 242000 11,0 2205600 100,0 * Inclou Catalunya
    • Most developed countries lead recycling in EU Management of RW and Biowaste Residual waste Biowaste Recycling with% Reciclat dels RSU effects on energy, material  recovery and greenhouse gases  emissions
    • Renewable energy sources (RES)  Outline of the presentation Directive (2009/28/EC) ‐Targets• Introduction • Each Member State shall ensure mandatory national  target of at least a 20 % share of energy from • Biowaste recycling: Energy, Material and  renewable sources in 2020 (art. 3.1) environmental aspects • Each Member State shall ensure that the share of  energy from renewable sources in all forms of • Potential of biowaste recycling transport in 2020 is at least 10 % of the final  consumption of energy in transport in that Member • Biowaste AD State (art. 3.4)• Improvements on Biowaste AD (grid injection  • … the contribution made by biofuels produced from  wastes, residues, non‐food cellulosic material, and  and process) ligno‐cellulosic material shall be considered to be twice • Conclusions that made by other biofuels (art. 21.2)
    • Recycling of biodegradable waste Recyling of biowaste (new documents May 2010) • Communication from the Commission on  future steps in biowaste management in  the European Union ‐ COM(2010)235 final• Commission Staff Working Document Accompanying the Communication from the Commission on future steps in biowaste management in the  European Union ‐ SEC(2010) 577 final http://ec.europa.eu/environment/waste/compost/developments.htm (Zambrzycki,  2011)
    • (Körner, 2011) (Körner, 2011)
    • Outline of the presentation Still a long way to go…• Introduction• Biowaste recycling: Energy, Material and  environmental aspects• Potential of biowaste recycling• Biowaste AD Spain: Only AD sites are listed• Improvements on Biowaste AD (grid injection  Only 15-20% treating biowaste and process) 1,5 Mt 0,35 Mt 6 AD sites 30 AD sites• Conclusions (Gilbert, 2011)
    • Potential of bio‐waste contribution to  Outline of the presentation RES targets • Introduction• About 1/3 of the 2020 EU target to use  • Biowaste recycling: Energy, Material and  renewable energy in transport could be met  environmental aspects by using the biogas produced from biowaste as vehicle fuel  • Potential of biowaste recycling• Around 2% of the overall renewable energy  • Biowaste AD target could be met if all biowaste is turned  • Improvements on Biowaste AD (grid injection  into energy and process) • Conclusions
    • Recycling of biodegradable waste Recyling of biowaste • Recycling definition requires re‐use of • Basic options: materials, excludes use as a fuel.• Composting, AD and AD + Composting • AD can be counted as recycling only if • These options should be placed in accordance digestate is used on land. with economics and European legislative • AD aspects: regulations.  – Recyling <‐> LCA effects – Bioenergy <‐> GHG reduction ∙ CHP  ∙ GRID INJECTION  ∙ FUEL FOR VEHICLES
    • Results of the 20in2020 directive Outline of the presentation• In most of the countries (new) feed‐in tariffs  • Introduction were announced or introduced • Biowaste recycling: Energy, Material and • Some of the countries announced goals for  environmental aspects biogas • Potential of biowaste recycling• There is hardly any measure set for biogas as  • Biowaste AD transport fuel • Improvements on Biowaste AD (grid injection  and process) • Conclusions
    • Implementation in Europe Grid injection:  A sustainable solution • Technology to upgrade biogas to  • Biomethane has very low  biomethane is well proven  emissions (industrial level) • Car engines are less noisy • Currently main market for grid  • No distribution  injection is in Germany.  Market  infrastructure needed,  develops also in other European  grids are available countries now • Biomethane can be  • Grid injection of biomethane allows different ways of energetic blended at any ratio with  natural gas utilization.
    • Right now:   CHP the optimum Improving AD efficiency IMPROVEMENT OF FEEDSTOCK BIODEGRADABILITY Advantages: Drawbacks:  FEED STOCK PRE‐TREATMENTS   EFFECTS:• No upgrading is required • The grid structure  More efficient digestion (higher reduction of  needs significant  • Thermal, • Electricity will become an  VS). • Biological,  important vehicle fuel improvement Higher gas production (up to 30%) • Mechanical More stable Biological process (material more  • Utilisation of heat homogeneous, mixed) • Peak loads in the grid Gas injection into the grid and production of heat and electricity in densely populated areas.   (Wellinger, 2011)
    • Improving AD efficiency Outline of the presentationADDITIVES IN THE DIGESTION MEDIUM • Introduction • Digestion process (bacteria, archea,  enzymes involved, essential nutrients and  macronutirents) • Biowaste recycling: Energy, Material and  • Higher gas yield (up to 20%) environmental aspectsAD OPERATION CONTROL • Potential of biowaste recycling • Mixing, pumping. • Control, automation • Biowaste AD • HRT, temperature • Improvements on Biowaste AD (grid injection  • High efficiency CHP units. and process)DON’T FORGET THE CO‐DIGESTION OPTION • Conclusions
    • Recap Recap• As in the case of residual waste thermal  valorization, biowaste management has large  • Cost effective solutions such as excess heat effects on climate change. utilization, grid injection, biogas use in • Only 25% of the biodegrable waste potential is  transport and co‐digestion should be sought used. for.• Biowaste recyling through AD contributes to the  • There is still room for process and biogas  RES directive targets and WFD statements. production optimization• Large potential for CO2 savings (energy, nutrients,  C sequestration), soil improvement and recycling  • We should turn out as a competitive of N, P and Organic Matter). advantage biowaste recycling obligation.
    • • Thank you for listening! jmata@ub.edu