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Title: Ferric dosing of reservoirs : a review of dosing and its impact in Anglian region, Northern area during 1994/5
Author: National Rivers Authority Anglian Region
Document Type: Monograph
Anglian Water Services have continued to directly ferric dose their water supply reservoirs with the aim of reducing water column phosphorus and to control cyanobacterial blooms and scums. Northern Area Biology staff (NRA) have continued to monitor the effects and effectiveness of ferric dosing at Rutland Water, Covenham and Pitsford reservoirs. Previous reports (Extence et al. 1991, 1992a, 1992b, Christmas et al 1994) have reported the adverse effect that direct dosing has had on both sediment chemistry and benthic faunal communities. This report summarises some of the findings from routine NRA monitoring during 1994 (and early 1995 for benthic invertebrates at Rutland Water). A summary of non-routine monitoring and relevant projects is also included. Preliminary results from the analysis of trace metal contaminants in W grade ferric sulphate is also included.
Publisher: National Rivers Authority
Publication Date: 1995
Publication Place: Peterborough
Subject Keywords: PhosphorusAlgal bloomsWater reservoirsWater pollutionMacroinvertebratesBenthosSediment pollutionBiological surveys
Geographic Keywords: RutlandPitsford WaterNorthamptonshire
Extent: 61; + appendices
Total file downloads: 298

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