Reed-bed fil­tra­tion

The Field - - Letters -

With re­gard to the news story in Field Notes (July is­sue) about Anglian Wa­ter us­ing reed-bed fil­tra­tion to clean wa­ter, I am afraid it is not the first to use this method.

I was dis­trict treat­ment man­ager at Bris­tol Wa­ter Com­pany’s Bar­row Treat­ment Works from 1987-2001. They used this method well be­fore my ten­ure and still do to clean wa­ter prior to its re­turn to the Land Yeo, which flows through sev­eral vil­lages be­fore en­ter­ing the Bris­tol Chan­nel near Cleve­don. It is also used at its Stowey treat­ment works, which has been clean­ing wa­ter that flows into the River Chew from at least the mid 1950s. The out­falls are tested reg­u­larly by the En­vi­ron­ment Agency and al­ways achieve its tar­get stan­dard. It is a tried and tested method that should be utilised more of­ten, not only by wa­ter com­pa­nies but also by in­dus­try and farms where pos­si­ble.

Phil Rollings (re­tired), by email

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