Why waste water must be treated
Why waste water must be treated
Homes, farms and industries produce waste water. Sewage and agricultural waste water contain organic matter and harmful microbes, while industrial waste water may also contain toxic chemicals.
Step-by-step lessons covering AQA GCSE Chemistry 10.1.3 Waste water treatment for Foundation and Higher tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Nail the core quantitative topics — moles, balancing equations and calculations — early on, since they underpin higher-tier questions across every paper and topic.