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Name : Gao Bei Dian Wastewater Treatment PlantAddress : No.1 Jia Gaobeidian, Caoyang district

Beijing 100022, ChinaTel : +86 10 8774 0959Fax : +86 10 8774 0959

Contact : Mr. Zheng Zhang Guo (Equipment Manager)Website : http://www.chinasewage.com

Introduction:

Gaobeidian Wastewater Treatment Plant is the biggest and most important plant among thefourteen wastewater treatment plants in the Beijing Municipality Master Plan. The plant occupiesan area of 68 hectares and serves a projected population of 2.4 million people.

The plant treats more than 1 million m3 of sewage every day, representing approximately 40% ofthe total sewage in Beijing. The Plant undertakes the task of wastewater treatment for a totalcatchments area of 9661 hectares, ranging from the city center to the east suburb. The plant hassignificant contribution to the water pollution control in the urban and east suburb of Beijing. In

addition, it also has an important role in cleaning the Tonghui River and the water environmentimprovement of Hai River.

To adopt international standard management system and offer better service to the society,Gaobeidian WWTP acquired ISO 9002, ISO 14001 and OHSA 18001 certificates.

When the plant was constructed, most of the equipment including pumps were of Britishorigin. Tokeep pace with the rapid development of the city, the plant felt it was necessary to makeimprovement on the existing pumps and systems. Through various experiments and researches,the user concluded that German-made pumps exceed their expectations in performance and

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quality. The plant began to replace some of the existing Progressive Cavity pumps to those ofGerman origin.

The original pumps for digested sludge were British-made Rotary Lobe Pumps. In 1998, BoergerRotary Lobe Pumps were first introduced to the plant and received positive response from theuser. However at that time, the plant decided not to make any change due to budget issues. In2000 upon re-introduction, the first Boerger pump with rubber-coated tips was supplied andcommissioned at Gaobeidian WWTP. The user is pleased with the performance of the pump andfelt that the cost of the pumps was justifiable by the benefits of Boerger rotary lobe pump: easy tomaintain; dry-run capability; low spare parts cost; energy saving and space saving. Till today,there are 10 units of our FL series (FL 518) pumps in operation at Gaobeidian WWTP to replacethe aging British Lobe Pumps.

Upon gaining positive feedbacks with Boerger Rotary Lobe Pumps from Gaobeidian WWTP, therewas an attempt by Boerger Pumps Asia to convince Gaobeidian to replace their existingProgressive Cavity Pumps with Rotary Lobe Pumps. Coming June 2006, Boerger Pumps Asia willbe supplying a new batch of rotary lobe pump to Gaobeidian WWTP, but for this time round it is toreplace existing Progressive Cavity Pump. The cost of Boerger Rotary Lobe Pumps was justifiablenot only in terms of its benefits over the same design of pumps but also over other type of pumps.

Liquid : Digested SludgeFlow : 90 m3/ hrPressure : 3 barMotor Power : 18.5 kWPump Speed : Approx. 317 RPM

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:

: 1

: 100022

: +86 10 8774 0959

: +86 10 8774 0959

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: http://www.chinasewage.com

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14

9661

24068 100

40%

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47

2008

1998

2000

10

2006 6

90 m3/ hr

3 bar

18.5 kW

317 RPM