У нас вы можете посмотреть бесплатно Water Purification - Why is alum added to water? | или скачать в максимальном доступном качестве, которое было загружено на ютуб. Для скачивания выберите вариант из формы ниже:
Если кнопки скачивания не
загрузились
НАЖМИТЕ ЗДЕСЬ или обновите страницу
Если возникают проблемы со скачиванием, пожалуйста напишите в поддержку по адресу внизу
страницы.
Спасибо за использование сервиса ClipSaver.ru
Download Free Android App of "Smart Learning for All" @ https://goo.gl/ZvPxzt Topic: Water Purification Why is alum added to water? Because water does not like to be alone. It wants somebody's company. No. Alum is added to purify water. Alum is aluminium sulfate. It acts as a coagulant. A coagulant attracts and binds with extremely fine and small particles to form a large particle. I won't use it. But why? Because it will attract all small insects and make a large insect. You are just unbelievable. When a solution of alum is added to impure water, it attracts and binds with contaminants and fine suspended particles of mud, dirt, etc. to form large particles. Being large, these particles can be removed by filtration, or when they settle down due to gravity, they can be removed through decantation, giving us pure water. For more educational videos please visit http://www.SmartLearningforAll.com Also, don't forget to subscribe to our YouTube channel.