unit operations and processes meaning in English

单元操作与过程

Preliminary treatment covers removal of larger suspended solids and heavier inorganic particulates through mechanical bar screening , gravitational sedimentation and flotation to keep the subsequent unit operations and processes from clogging and abrasion and to maintain the designed functions of the equipment . commonly used preliminary treatment equipment includes bar screen , fine particle sieving , grit chamber , pre - aeration , grease well and scraping chamber , etc . domestic companies have the capability of manufacturing all equipment except fine sieves
两大类，其他还有地下水污染处理、海洋港口污染处理、水库湖泊污染处理等，所需之处理设施大致有拦污设备、沉砂设备、除油设备、沉淀设备、过滤设备、生物处理相关设备、污泥脱水设备、加药设备、高级处理相关设备等。
Preliminary treatment covers removal of larger suspended solids and heavier inorganic particulates through mechanical bar screening , gravitational sedimentation and flotation to keep the subsequent unit operations and processes from clogging and abrasion and to maintain the designed functions of the equipment
前处理系指以机械拦截、重力沉淀、浮除等方式，将水中体积较大之悬浮固体、较重的无机性固体，或是过量的油脂等污染物先行移除，避免造成后续处理单元设备发生阻塞、磨损等现象，而影响到机械设备的原有功能。