Rainwater Harvesting & Greywater Recycling

Transcription

1 Rainwater Harvesting & Greywater Recycling Brighton University, 19th July 2012

2 Agenda 1. Rainwater harvesting systems 2. Combined systems integrated attenuation 3. Greywater recycling systems

3 Retrofit garden irrigation systems for domestic applications

4 Simplex systems for domestic applications (submerged pump) Includes: - tank including accessories - filter - mains back up system - submerged pump with flow guard

5 Aqua-Control 1100 System for small commercial & industrial applications Includes: - tank with integrated filter including accessories - Aqua-Control unit with integrated booster pumps - submerged pump as loading pump

6 Aqua-Control 5000 System for large commercial & industrial applications Includes: - tank with integrated filter including accessories - MAX control unit with integrated booster pumps - submerged pumps as loading pumps

7 References supermarkets & schools TESCO Berwick Padiham Primary School, Burton

8 References shopping centres Westfield Shopping Center, White City, London (completed 2008) System data: Client - Westfield 80,000 visitors per day ~200 public WCs being supplied 80m3 water consumption per day 32,000m2 roof connected 2000m3 concrete tank Rainmanager AC 5000

9 References offices Unison HQ, London (completed 2010) 51 Lime Street, London (completed 2008)

10 References others Hamburg Airport, Germany Nursing home, Shrewsbury Supermarket, Berwick

11 Obligation to install rainwater harvesting systems in Belgium - obligation for new builds - all types of buildings - 3-staged discharge: 1) rainwater harvesting 2) rainwater infiltration 3) rainwater attenuation

12 Greywater recycling in detail Bio-mechanical greywater recycling systems: Aqua-Recycling Control remote control and monitoring unit Greywater filter Back-wash filter for hair and other particles Buffer tank Buffers the incoming greywater for treatement Clear water storage tank Stores water for potential demand Membrane treatment tank Aerates and treats the greywater Aqua-Control booster pump set with integrated mains water back-up and controls

13 Water quality Permanent clear odourless water BS (European bathing water directive) Hygienic safe reuse for non potable applications yield application used as they should e.g. Showers, baths and hand wash basins

14 Greywater recycling design Design aspects: - BS collection hierarchy - 25:50 litre / person / day - small footprint due to constant yield - dual collection and distribution - weather independant - sustainability: no chemicals - combination with rainwater harvesting

15 References leisure centres System data: Client: Scunthorpe city council 10,000 l/d treatment capacity Supply to WCs as well as Top-up of surrounding pond Rainmanager AC 1000 with ARC 500G Scunthorpe Leisure Centre (completed 2010)

16 References - offices System data: Client Severn Trent Supplying 1700 office staff With rainwater, greywater or borehole water Most water efficient building in the UK Severn Trent HQ, Coventry (completed 2010)

17 References - residential System data: Developer: Land Securities Residential and office block Two separated system: 3m3/d treatment capacity & 8m3/d treatment capacity Park House, Oxford Street, London (completion Feb.2012)