Siemens Starts Up Wastewater Reuse System in Beijing, China

The city will use eco-friendly technologies in water/wastewater management. The goal is to process 90% of the wastewater, with 50% for recycle and reuse. The solution that Siemens provided includes a Memjet Membrane Bioreactor (MBR) system, which treats wastewater for reuse in the Olympic Village central area, fountains and lakes. The treatment system has more than doubled the plant’s capacity, from 40,000 m3/day to 100,000 m3/day.

The Memjet MBR system at Beixiaohe contains biological and membrane treatment steps. With 4,864 membranes, the system is one of the largest of its kind in the world. The Beijing Drainage Group chose the system because it takes up 60% less space than conventional technology, and it fit exactly in the plant’s existing space. Besides the MBR system, Siemens provided process design, mechanical equipment, electrical and automation systems, instrumentation, installation supervision and operation and maintenance training. The MBR treats 60,000 m3/day of water for reuse, and 10,000 m3/day of that water is further treated with a reverse osmosis system for decorative fountains and a “theme” lake.

Memjet is a trademark of Siemens and/or its affiliates in some countries.

Beixiaohe WWTP, located in the northern part of Beijing City, has a capacity of 100,000 m3 per day with a service population of 400,000.

The Siemens Industry Sector is the world's leading suppler of production, transportation and building systems. Integrated hardware and software technologies combined with industry-specific solutions enable Siemens to enhance the productivity and efficiency of its customers in industry and infrastructure. The Sector comprises six Divisions: Building Technologies, Industry Automation, Industry Solutions, Mobility, Motion Control and Osram. In fiscal 2007 (ended September 30), Siemens Industry generated sales of around €40 billion (unconsolidated) with approximately 209,000 employees worldwide.

With the business activities of Siemens VAI Metal Technologies, Linz/Austria, Siemens Water Technologies, Warrendale/Pennsylvania/USA and Industry Technologies, Erlangen/Germany, the Siemens Industry Solutions Division (IS) is one of the world's leading solution and service providers for industrial and infrastructure facilities. Using its own products, systems and process technologies, IS develops and builds plants for end customers, commissions them and provides support during their entire life cycle.