Grey‐Water Reclamation for Non‐Potable Re‐Use

Abstract

Abstract Direct water recycling has become an important part of water conservation in the dry areas of the world and is now being seriously considered for the UK. This paper reviews current demands in large buildings and balances these against non‐potable re‐use. Work is also described on the development of a sustainable low running cost treatment unit. Results are presented from a 751/day prototype biological process operated with a synthetic sewage, which achieved a near potable standard at a cost of 25 p/m 3 . The design, performance and costings of a 40 ‘population equivalent’demonstration unit are also given.