Mrs Peers-Dent shows you how to test water for sodium and chloride ions before and after distilling. —————————– 00:00 Flame test for metal ions […]
The aim of sewage treatment should be to return nutrients back to the soil, but without any harmful pathogens. Composting toilets do this, making […]
Learn the basics about water treatment, as a part of environmental chemistry. Human beings have added to the natural water cycle by taking water […]
Find my revision workbooks here: https://www.freesciencelessons.co.uk/workbooks/shop/ In this video, we look at how to waste water is treated before it is released back into […]