Waste not want not - States Assembly
Waste not want not - States Assembly
Waste not want not - States Assembly
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WASTE NOT, WANT NOT<br />
Figure 18: Summary Review of Available and Developing Technologies for Municipal Solid <strong>Waste</strong> (MSW) Management<br />
<strong>Waste</strong> Description & Economics Design to Biodegradable Municipal Environmental<br />
Management development commissioning <strong>Waste</strong> (BMW) diversion role and health issues<br />
Technology status timescales and environmental benefits<br />
Landfill<br />
containment and<br />
stabilisation – employs<br />
proven technology<br />
UK landfill tax low. Siteengineering<br />
&<br />
conditioning plan<br />
requirements raising costs<br />
substantial consented UK<br />
void space, problems in<br />
some areas<br />
no direct role – indirect from<br />
methane combustion. Future<br />
need will increasingly focus on<br />
MSW reprocessing residues<br />
concerns: health effects<br />
& vehicle movements.<br />
Sub-optimal resource<br />
recovery option<br />
BIOLOGICAL<br />
Composting<br />
aerobic degradation of<br />
organic material –<br />
commercially developed<br />
low-medium cost.<br />
Windrow technology<br />
exhibits clear economies.<br />
In-vessel technology is<br />
more modular<br />
plants designed today<br />
should be on-stream by<br />
2006-10<br />
potentially significant role –<br />
returns biomass and nutrients<br />
to soil, reduces soil erosion,<br />
acts as a carbon sink and<br />
displaces natural peat &<br />
manufactured soil conditioners<br />
concerns: Animal By-<br />
Products crosscontamination<br />
issues,<br />
odours and vehicle<br />
movements<br />
Anaerobic Digestion<br />
biological process in the<br />
absence of oxygen. Whilst,<br />
trialed, <strong>not</strong> yet<br />
commercially proven in<br />
the UK on MSW<br />
low-medium cost. Plant is<br />
somewhat modular<br />
requiring step-change for<br />
capacity increase<br />
with right incentives,<br />
could be on-stream by<br />
2006-10, subject to<br />
securing planning<br />
potentially significant role –<br />
returns nutrients to soil,<br />
displacing manufactured<br />
fertilizers, acts as a carbon sink<br />
and produces a renewable<br />
energy<br />
concerns: likely to mirror<br />
those for composting.<br />
Renewable bio-gas offers<br />
CO 2<br />
neutral combustion<br />
Ethanol production<br />
waste fermentation<br />
followed by distillation.<br />
Commercially proven in<br />
non-MSW applications<br />
medium-high cost. First<br />
commercial MSW plant<br />
under construction – may<br />
become a test-bed<br />
<strong>not</strong> as yet known where<br />
MSW is concerned –<br />
probably similar to process<br />
engineering facilities<br />
potentially significant role –<br />
ethanol is a renewable energy<br />
source which can be used in<br />
existing hydrocarbon<br />
infrastructure, resulting in CO 2<br />
neutral combustion<br />
public concerns likely to<br />
mirror those for any<br />
process engineering<br />
facility, or as per<br />
composting<br />
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