Microsoft Word - Environmental benefits of recycling 2010 update.doc

Food & garden  ‐ n°3
Title Lifemanagement^ cycle^ assessment options^ of^ food^ waste^
Year 2005
Author Lundie and Peters

Case

Material composition

Sub‐scenario Home(aerobic)^ Composting^ Home(unaerobic)^ Composting^ compostingCentralised^

Co‐disposal with MSW

(Landfil without

energy recovery)

In‐Sink_Erator

Virgin material

Material marginal: which?

Electricity marginal: which? Australian mix Australian mix Australian mix Australian mix Australian mix

Heat marginal: which? Australian mix Australian mix Australian mix Australian mix Australian mix

Co‐products dealt with?

Recovered material

Material marginal: which? cow manure cow manure cow manure / /

Electricity marginal: which? Australian mix Australian mix Australian mix Australian mix Australian mix

Heat marginal: which? Australian mix Australian mix Australian mix Australian mix Australian mix

Co‐products dealt with? NoNoNoNoNo

Material recovery included? Yes Yes Yes No No

Type of recycling

In which ratio does recycled material substitute

virgin material? /////

General

Technology Sydney specific Sydney specific Sydney specific Sydney specific Sydney specific

Infrastructures taken into account? Yes Yes Yes Yes Yes

Transport included? Yes Yes Yes Yes Yes

Energy production

Produced energy substitutes electricity? / / / / /

Produced energy substitutes heat? /////

Avoided processes ‐ credits cow manure cow manure cow manure / /

Material substitutes cow manure cow manure cow manure / /

Carbon sequestration issue taken into account?NoNoNoNoNo

Waste characteristics

Heating value /////

Degradation rate (over  100  years) / / / / /

Incineration

Alternative use of incineration capacity

included? /////

Composting

Compost spreading for composting taken into

account? No No No No No

Compost leaching after spreading taken into

account? No No No No No

Carbon binding of compost included? No No No No No

% of carbon remaining in compost after  100 

uears /////

Landfill

Methane emissions included? Yes Yes Yes Yes Yes

LFG efficiency / / / Flaring/Norecover^ energyy^ /

3[FW] (FW= Food waste)

Food Waste

Material

production

Material

recovery

Material

disposal