Thames Water is using a combination of covers, air filtering technology and monitoring in order to ensure it meets challenging odour control targets in its upgrade of Deephams Sewage Treatment Works in north London.
The two inlet works are receiving GRP covers provided by Corporate Engineering, which fit closely to the current concrete. In the main effluent stream, the 14 primary settlement tanks have been fitted with removable PVC roof covers on aluminium trusses with an integrated gutter system and inspection hatch, provided by Power Plastics. The primary settlement channels, flow splitting chamber and anoxic zones will have GRP covers, while the secondary digesters are to be fitted with domed double-skinned PVC-coated membrane covers supplied by Kirk.
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