ТОР 5 статей: Методические подходы к анализу финансового состояния предприятия Проблема периодизации русской литературы ХХ века. Краткая характеристика второй половины ХХ века Характеристика шлифовальных кругов и ее маркировка Служебные части речи. Предлог. Союз. Частицы КАТЕГОРИИ:
|
Technique of sanitary inspection of water supply sourcesSanitary inspection includes three basic positions: · Sanitary-topographical inspection of its environment; · Sanitary-engineering inspection of the condition of an equipment of water source. · Sanitary-and-epidemiologic inspection of area placing of water source. The important practical value has definition of water quantity in the source of water and it debit (productivity). For example, in a well with concrete rings quantity of water define under the formula: V = π R2 h, where: V – quantity of water in a well, m3; π - 3.14; R - ring radius, m; h - thickness of sheet of water, m. Calculation of necessary quantity of chloric with any percent (%) of active chlorine for disinfection of wells Water volume in a well makes 1 m3 (or any other volume, you can see in the situational task), at the concentration of active chlorine … % (see to the situational task) for water disinfecting is necessary to calculate chloric exhaust quantity (P), by such formula: E (m3) · C (100 mg/dm3) · 100 Р = H (%) = … gram, were E – volume of water in well, m3, C – given concentration of active chlorine in water well, gram/ m3, H – content of active chlorine in disinfection, %, 100 – constant coefficient number. Example. 1m3 х 100 mg/dm3 х 100 Р = 25 % = 400 gram, where E – volume of water in well, (1 m3), C – given concentration of active chlorine in water well, (100 gram/ m3), H – content of active chlorine in disinfection, (25 %), 100 – constant coefficient number. Не нашли, что искали? Воспользуйтесь поиском:
|