Urban Waste London Case Study Flashcards by user delete

Where is it

Southwark

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What is it’s wastestream

Diff bins

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Summarise the blue bin

Recyclables

Waste is sorted 
Cardboard taken out by hand 
In rotating drum
Metal magnets pull out cans 
Eddy currents separate aluminium 
Non recyclables taken out by hand
Optic plastics sort using infra red sensor

Recyclable materials

Plastics and metals are compressed into bales and put in loftier and taken to reprocessing plants in other countries where they’re made into new items

Card and paper are taken to paper milk

Plastic is made into pellets and melted to make new containers

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Summarise green bin

Has mixed food waste- waste that has only some recyclable components

Waste is sorted by automatic segregation system to separate recyclable materials

Moisture is removed from remaining waste and made into solid fuel blocks- and these are sent to SELCHP Energy recovery facility
They are burnt and turned into electricity for the National Grid

There is also pipe work which provides heating and hot water for 10,000 Southwark hones

The burning process emits some acidic gases which are neutralised w line and Particulate matter is removed via filter

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How much of Southwarks MWS goes to landfill

Roughly 18%

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Explain Southwarks waste links to China

Some waste from Southwark goes to China as reprocessing plants can’t cope with the amount of waste areas create

It’s cheaper then transporting to another reprocessing plant in eg Manchester

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What is card and paper made into

New paper and card at paper mills

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What is plastic made into

Pellets which add melted into plastic containers
Garden furniture
Fellow
Jackets

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What is aluminium made into

New cans

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What is glass made info

Bottles
Jars
Building and road materials

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Comment on Southwarks progress towards achieving its recycling recovery and landfill targets

By 2020- Southwark council aims to recycle and compost 50% of MSW

2010/11—25% recycling and compost rate
63% municipal waste diverted from landfill (recovery rate)

2015/15—35% recycling and compost rate
95% municipal waste diverted from landfill (recovery rate)

DOING GOOD

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Name Southwark re use schemes

Community repaint

British heart foundation

Let’s recycle. Com

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Explain community repaint

Reusing paint in the community

2013/14 repaint saves 8.5 tonnes of landfill

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Explain British heart foundation

Since 2009-
Furniture and bric a brac collected weekly from Southwark waste facility

Goods are sold in BHFs outlet on Old Kent

It made £39,000 in 2009 and 25 tonnes were diverted from landfill since 2009

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Explain let’s recycle . Com

In just 365 days- huge drop in carrier bags

Plastic bags reduced from 170 mill to 40 mill since 5p charge- 75% reduction

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is Southwarks waste management strategy sustainable

Yes

2013/14 MOney saves from community repaint
Recycling bicycles
BHF
(And tonnes of rubbish saved)

18.26 tonnes

£1875 in landfill tax

Advantages of landfill

Highly regulated and limits the materials deposited here so no hazardous waste

Cheap and easily managed

Attracts birds

Methane generates electricity

Advantages of recycling

Wheelie bins are families and convenient and easy to understand

Upcycling is encouraged by councils where furniture is repaired and repainted so it can be re used

Reduce landfill

Organic waste can be composted enriching soil

New products are made without using scarce resources

Advantages of incineration

Incineration plants are long lasting, cost effective and do not take up valuable space

Environmental impacts of landfill

Smelly places

Create noise from lorries delivering waste + atmospheric pollution (dust particles) + attract vermin flies and scavenging birds

Decomposition of organic waste creates methane- green house gas - global warming
Also explosive
But can generate electricity

Chemicals from the waste can leak downwards and contaminated groundwater

Overtime the landfill site can subside as the waste decomposes

Heavy traffic to and from site- congestion

Environmental impacts of Recycling

Less landfill - les land used

Public recycling collection points in car parks can over flow and create litter

Reduces landfill

New products w out using scarce materials

Organic waste can be composted enriching soil

Environmental impacts of incineration

Less land is needed than for landfill

Global warming

Is landfill sustainable

Is land fill socially sustainable

NIMBY people are exposed to harmful gases Global warming But no hazardous waste NOOO

Is landfill economically sustainable

EU limits on the amount of biodegradable waste disposed in landfill due to the amount of methane emmitted Fines to the council of £150 per tonne are imposed if exceeds limit METHANE CAN MAKE ELECTRICITY Cheap solution easily managed YES

Is landfill environmentally sustainable

Heavy traffic to and from sight Attracts vermin and scavenging birds 🦅 Air noise pollution Greenhouse gases BUT methane gas can generate electricity BUT is a greenhouse gas Can be sealed top soiled and landscapes for use after full PARTIALLY

Is recycling sustainable

YEA | But public sorting can have error

Is recycling environmentally sustainable

Public recycling collection points in car parks can overflow and create litter More recycling means less landfill Public recycling- litter New products made w out using scarce resources Organic waste can be composted enriching soil YES

Is recycling socially sustainable

Public recycling generates noise and litter NO

Is recycling economically sustainable

Public recycling facilities req expensive safe operation to avoid hazardous leakage Eg Grudges and CFCs or old batteries leaking acid Electronic and electronic waste (WEEE) contains toxic components so require extra cost to dismantle safely NO

Is incineration sustainable

Is incineration environmentally sustainable

Not all waste of combustible Does not take up valuable space Can contribute to global warming- co2 PARTIALLY

Is incineration socially sustainable

Sometimes burn hazardous biochemical waste from hospitals If incineration on plant is a combined heat and power plant- houses have cheap hour wasted and heating Emissions can be harmful- particulates NO

Is Incineration economically sustainable

Plants emit co2 (greenhouse gas) and particulate matter and this require filters and chimneys and careful monitoring costing money NO