Filter refurbishment program for Thames Water in Berkhamstead Purpose of rental unit: To provide additional nitrification to works whilst trickling filters were refurbished Consent standard required: 3mg/l NH4 Total flow to the unit: 21l/s @ 1 hours retention (50 minutes is minimum retention to achieve nitrification) Unit supplied: 1 x Steel 1000pe wastewater treatment unit with duty standby blowers Our 1000pe steel

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