UNIT 2

Management of water usage in HICs

Specification details

5.3a The management of water usage: in HICs, in domestic, industrial and

agricultural contexts.

What is the link between

these pictures?

Water Saving Methods

There are many ways of saving water

Read through the information about different methods

Put into 3 categories. Domestic Industrial Agricultural

Check them and stick them into your books under the correct headings

Domestic Industrial AgriculturalCollecting rain water in a water butt means you do not have to use a hosepipe as much, this could save 50,000 litres per year

Tap restrictors – valuable for providing equal flow at a number of taps in a washroom. This reduces water flow by 15 per cent.

Drip irrigation is very effective, but very expensive, it delivers water straight to the plant roots with minimal losses.

Having a shower instead of a bath can save up to 60 litres a time

Push taps, ideal for public areas, stops taps being left running. This can prevent huge wastage if the tap is dripping.

Loosening compacted soil prevents surface run off and allows water to be absorbed into the soil

Short flush toilet system can save 8 litres of water per flush.

Urinal flush controls – controlling when they flush can save up to £3800 on water bills.

Installing rainfall sensors so the irrigation systems only operate when it is dry.

Economy setting on dishwashers and washing machines saves a lot of water.

Shower regulators provide an equal flow when lots of showers are being used, saving up to 20%

Flood irrigation can give a very uneven distribution and overhead sprinklers lead to evaporation of water before it is absorbed

A water meter controls the usage of water and allows people to see how much water they are using.

Push button showers are ideal for public areas where they may accidently be left on.

Turning off taps when not needed, a running tap uses 10 litres a minute.

Stick this in you books and label the different ways houses in HICs can save water.

Case Study: Walkers Crisps

Walkers Crisps have reduced its usage by 50%

This is saving over 700,000,000 litres a year

They did this by:- Installing 30 water meters at their factories,

allowing them to monitor where and when water was being used

They recycle the water from one part of the production, rather than wasting it

They educated their staff about using water sensibly

They assigned ‘water champions’ and ‘leak busters’ to each shift.

It was VERY successful!

Extension

Can you think of any water saving methods you could use in your home

It could be new designs for old products, -or-New methods of saving water

Specification detail

5.3b The management of water resources (a dispute between countries, areas or within a country over water transfer).

How can water cause conflict?

Conflict over water in the Middle East and the Zambezi basin : here

Map work

Use a map and find two countries that share the same water source.

Research this water source and discover if there is any conflict.

Murray-Darlin Basin, Australia