中控室 Process Control Center	撇水器 Decanter	污泥浓缩脱水机 Sludge Thickening $ Dewatering Machine	实验室 Laboratory

　　北京经济技术开发区污水厂工程采用国际上先进的C一TECH（改良型SBR）工艺，即循环式活性污泥法，主要工艺流程包括预处理段、生物处理段和污泥处理段。整个污水处理系统（包括粗格栅、提升泵、细格栅、C-TECH池、消毒池、污泥处置装置）全部实现自动控制。自控系统在中控室设置监控计算机，在各处理单元设置可编程控制器（PLC），二者以高速数据通道连接，从而形成集中监视、分散控制的系统整体。一期项目建成后，污水日处理能力为2万吨，届时，整个开发区生产及生活污水将在此处理达标后。排入凉水河，作为景观用水。1万吨／日污水回用处理系统正在筹建中。

污泥处理间 Sludge Treatment Unit	德国ABS提升泵 ABS pump	变配电室 Power disribution room

The wastewater treatment engineering adopted an advanced technique--C-TECH(a kind of modified SBR),i.e.cyclic active sludge technology.The whole process mainly includes pretreatment，biological treatment and sludge treatment.The whole system is automatic completely(inc.coarse screening,lift pump,fine screening,C-TECH tank,disinfections tank and sludge treatment unit.)．There are monitor computers in the central control room and PLCs seperation in each operation unit.Computers and PLCs are connected by high-speed digital transmission channel to form the centralized monitor and dispersed control system.When the first phase of the project is finished,the capacity of the wastewater treatment would be 20 thousands tons per day.After beijing treated to meet the requirements of discharge standards,all of the industrial wastewater and sanitary sewage coming from different facilities in this area will be discharged into the Liangshui River.The treated wter can be resused as landscape engineering water.In addition,a wastewater advanced treatment sysem with the capacity of 10 thousands ton per day to serve the resused purpose is being perpared.