Coleg Sir Gar's plan to tackle slurry pollution in rivers
A Carmarthenshire college is working on a plan to help cut the amount of slurry pollution in rivers in Wales.
A team at Coleg Sir Gar - working with Swansea tech firm Power and Water - is looking at ways of removing the water from agricultural waste to leave solid fertiliser which can then be stacked in bundles and spread.
Here is how it could work.