C-10 Finite and Renewable resources

• Resources that form without human input • Include anything that comes from earth, sea or air • Can be replaced or improved upon by man made processes e.g rubber is replace by man made polymers

• Resources that reform at a similar rate of faster than we use then e.g timber

• A finite resource that will run out - E.g fossil fuels, metals

-They undergo man made processes e.g fractional distillation

• Social environmental and economic issues - E.g metal oar scars landscape, destroys environment and habitats, needs lots of energy and produces lots of waste

• AN approach to development that takes into account of the needs of present society without damaging further generations

• Development allows for less need and lower amounts of energy to be used e. g catalysts

• Copper rich ores are in short supple -

• By extracting it from low grade ores- two methods • Bioleaching- bacteria that converts copper compounds in ore to soluble copper compounds- separating. contain copper ions which are extracted by electrolysis • Phytomining- Growing plants in soil that contains copper- can’t use so builds up on leaves- ash contains copper- electrolysis

• Mining and extorting takes lots of energy • Recycling takes less and conserves finite amount of metal and cuts down on co2 producing waste • Can be mixed to reduce separation needed

• Reduces waste and need for new glass • Some can’t be resumed so are recycled • Separated by colour and chemical composition • Brushed , melted and reshaped

• Getting raw materials- Extracting damage and process damage • Manufacture and package- Energy use- waste produce used to package • Using- e.g fertilisers damage the environment. How long it lasts for • Product disposal- How it is disposed

• Looks at every state of produce life and asses impaction environment

• Plastic • Crude oil • Fractional distillation- waste reduced due to other factions use • CAn be reused • Non biodegradable

• Use of energy and waste can’t be easily quantified - Not an object method and can e manipulated for supper

• Water that has been treated or is naturally safe to drink • Not pure - can contain dissolved substances • Level of dissolved salt not to high and PH of between 6.5 and 8.5- to reduce bacteria or microbes

0 Natural water sources that have low levels of salt

• Filtered before safe - wire mesh, sand then sterilisation by UV light, ozone or chlorine

• Distillation • Ph test- need to neutralise- • A water heats up it’ll evaporate and will enter condensing column as steam • See if any crystals were formed to see salt content

• Distillation • Reverse osmosis - membranes- passed through that only allows water molecules through • Not practical for large quantities due to high energy use

• Many different sources • Agricultural systems • Domestic sources • Industrial processes

• Organic matter • Harmful chemicals • Polluted

• Before treated it is screened- scarped of large bits • Its allowed to standing settlement tank- heavier parts sink- effluent at top- sedimentation- effluent removed • Biological aerobic digestion- air pumped through to encourage aerobic bacteria to break down organic matter- including microbes • Sludge is placed into large tanks- bacteria breaks it down by anaerobic digestion- breaks down - produces methane- then used as energy source- remaining used as fertiliser • Waste containing toxic substances addictions substances may be added e.g chemicals, UV radiation, to membranes

• Mor exorcises by less energy than desalination of salt water • Used as alternative in places without fresh water e. g sinapore waste water is retreated for drinking water • However soenna poepie doet lief the idea of drinking waste water