On September 20, the lecturer of the Department" Biochemical Engineering "Turysbekova G. zh.held a lesson on the topic" protection of Water Resources".  During the lesson,the main sources of pollution of the hydrosphere, the use of Water Resources, water quality, water efftrofication and methods of water purification in the air were considered. At the end of the lecture, questions related to the topic were asked and additional materials were distributed.