Waste management Flashcards
Food waste management in London
They use anaerobic respiration tanks to convert it for fuel, electricity, fertilisers - turning waste into useful materials
why should you use meat in composting
It could result in contamination as it could attract rodents and rats, result in diseases or parasites.
What are negative factors of how we manage food waste
Smell- a lot of maintenance this could affect local housing prices, affect to develop more sites - alternative to build on green belts - policy for controlling urban growth.
Produces run off - could cause water pollution
Produces Co2
Produces heat
How many tonnes of waste does the UK produce per year
400 million tonnes and continues to grow at a rate of 3% per year
What is the typical contents of a domestic bin
Kitchen and garden waste 31% Paper and card 21% plastics 9% glass 6% Nappies 5% soil 13% metals 7% textiles 1% Miscellaneous 7%
what approaches could be taken to rubbish problems
One giant bin for everything - could be more adaptive and get 3 smaller bins to separate and recycle the waste
Money could go back into the community as an incentive for reducing general waste
Councils should take more action
Where does our rubbish go
The majority of our rubbish ends up in huge landfill sites. These are often found in abandoned quarries. The waste is compacted and over several years the site is filled in.
What happens to landfill sites that filled up
It is covered with a layer of soil, grassed and is often used for grazing. Special care must be taken to remove any harmful chemicals and gasses from rotting rubbish
What approaches could be done to reduce food waste
Rules encouraging food from getting donated to avoid getting it wasted
Apps for reducing food waste - pick up food that hasn’t been sold from cafes and small restaurants
Olio - if someone bought too much of one thing, other people can pick it up
Freeganism - dumpster diving
Company in central London takes old fish and chips oils and convert it into fuel for taxis
What is the waste hierarchy from top to bottom
Prevention Minimisation Re-use Recycling Energy recovery Disposal
What is the waste hierarchy
The waste hierarchy is a pyramid diagram that shows us the best to worst ways of dealing with our waste are./ The bottom three are the only ones which actually get rid of waste from your home, but the three at the top are the better ones.
Why do we manage livestock waste
Because it can cause pollution to water sources
Also pollutes environment - eutrophication
Nitrates could damage fish populations - affect entire food food chain and the entire ecosystem
How do farmers manage animal waste
A slurry pit, or circular concrete structure where farmers gather all their animal waste together with other unusable organic matter, such as hay and water run off from washing down dairies, stables, and barns, in order to convert it, over a lengthy period of time, into fertilizer that can eventually be reused on their lands to fertilize crops
What are aims towards waste management
comply with legislation - controlled waste regulations act 2012
reduce waste
reduce environmental impact - reuse and recycle
Compost green waste
Staff waste management training
dispose of animal waste properly
signs to reduce waste
