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Small Hospitals P flow 450 litres P BOD 140 grams P Ammonia as N assess

Caravan Sites – (i) touring not serviced P flow 100 litres P BOD 44 grams P Ammonia as N 8 grams

Office / factory without canteen P flow 50 litres P BOD 25 grams P Ammonia as N 5 grams

1 Queen Anne’s Gate London SW1H 9BT www.britishwater.co.uk

BW COP: 1/05

Code of Practice

Flows and Loads – 2

Sizing Criteria, Treatment Capacity for Small Wastewater Treatment Systems (Package Plants)

Office / factory with canteen P flow 100 litres P BOD 38 grams P Ammonia as N 5 grams

Standard residential P flow 200 litres P BOD 60 grams P Ammonia as N 8 grams

Residential old people P flow 350 litres P BOD 110 grams P Ammonia as N 13 grams

ISBN 1 9034810 5 8

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