Severn Trent Services Provides Denitrification Deep Bed Filter in China
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Severn Trent Services
Severn Trent Services Tianjin Jinnan Wastewater Treatment Plant

The Tianjin Jinnan Wastewater Treatment Plant will have the largest wastewater treatment capacity of all TETRA Denite filters in China when complete

Severn Trent Services recently signed a contract with Tianjin Machinery & Electric Equipment Import & Export Co. Ltd., to provide its TETRA Denite denitrification filter technology to the Tianjin Jinnan Wastewater Treatment Plant Phase I Project. The Phase I Project has a daily capacity of 550,000 tons, making it the largest Denite DeepBed filter in China.

The denitrification installation will ensure the Tianjin Jinnan plant meets the Class 1A wastewater discharge requirements for total nitrogen, recently established due to the implementation of Water Resource Management Regulations, which enforce high quality standards on wastewater treatment and discharge and recycled water. The Severn Trent Services design uses 30 filters, each measuring 28.45 meters by 3.56 meters for a total filter area in excess of 3,000 sq meters. The start-up of this project is set to commence in October 2013.

Tianjin Jinnan Wastewater Treatment Plant is a relocation project of Jizhuangzi Wastewater Treatment Plant. The project was supported by Tianjin Construction and Transport Administration Commission, Planning Bureau, Water Supplies Bureau, Municipal Public Road Bureau, Urban Investment Group and Jinnan District and Xiqing District Governments.

TETRA Denite is a fixed-film biological denitrification process that also serves as a deep bed filtration system capable of removing total nitrogen and total suspended solids from wastewater in a single step compared to other single-function filter technologies. 

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