The answer is 5000
Hard rock mines in particular use water in all steps of the mining process. They utilize water recycling as much as possible.
Now this may be a little oversimplified. But I would think that the easiest way to conserve water would be to recycle it. An example of that would be the new car washes that recycle the water that they use to wash cars. You just filter it, and then use it over again.
recycling
Agriculture, steel, jucie, clean water supplying industries.
Conservation.
Recycling paper helps conserve trees, reduce landfill waste, and decrease energy use. It does not increase water consumption.
Industries that requires the fabrication of machine pieces or the cutting and shaping of a material, such as aerospace and mining, use water jet cutting.
Recycling
Wash Jo mommas clothes
For a business to go green they would need to be as environmentally friendly as possible. Start off with recycling as much as possible. Then try saving electric and water as much as possible.
This process is called recycling.
Gas drillers and GE both reuse and recycle their water.