GWtec® greywater system for the environmentally friendly, energy-efficient and completely chemical-free treatment of low contaminated wastewater (greywater) from showers, washbasins and bathtubs.Using membrane technology to produce high-quality process water that meets the hygienic/microbiological quality requirements of European standard EN 16941-2. The equally important standards for the reuse of greywater of British Standard 8525-1:2010, the EU Bathing Water Directive 76/160/EEC and DIN 19650 (1999) Class 2 for irrigation water are fulfilled. Visually and sensorially indistinguishable from drinking water. Ideally suited for reuse for toilet flushing, cleaning purposes, washing machines, irrigation. Greywater system consisting of: GW filtration tank made of HD-PE black, as aerobic biological purification stage for the decomposition of organic pollutants and for feeding the GWtec® station with greywater. Equipped with DN 400 cleaning dome, DN 50 threaded insert for tank ventilation, DN 40 PVC drain cock and DN 100 emergency overflow connection at the front for connection to the sewage system. Analogue level monitoring by means of float switch. Whisper-quiet air compressor with wall bracket and EPDM membrane tube aerator especially for greywater. GWtec® station equipped with state-of-the-art ultrafiltration technology with dry-mounted hollow-fibre membrane filter. PESM membrane surface with increased hydrophilicity to minimise bio- fouling and scaling processes on membrane fibres. 99.9 % reliable retention of particles, germs and adsorbed viruses > 20 nanometres (0.0002 mm). Dynamic control of the treatment performance with SmartFiltrationControl (SFC) based on actual greywater contamination for optimum cleaning performance and maximum service life of the membrane filter. Filtration process in dead-end mode. Filtrate pump as frequency-controlled horizontal centrifugal pump with pump housing made of stainless steel 1.4301. Powerful backwash pump for efficient cleaning of the hollow fibre membranes after filtration. Hydraulic control and operating processes via motor-controlled ball valves with position feedback for reliable operation. Control and monitoring of all flows by means of calibrated ultrasonic flow sensors. Level monitoring of the service water storage tank by means of pressure transducers, control and monitoring of make-up processes (drinking water, rainwater) in the service water storage tank (to specify). GWtec® station mounted on an anodised aluminium frame. Control and monitoring on the system via a high-resolution 10-inch touchscreen display for fully automatic operation. Control and web connection via in-house DehoustCONNECT server with a wide range of remote operation options: Individually configurable operating parameters for performance optimization, live monitoring of operating processes and data, fault analysis and rectification via remote access, alarm and status messages via e-mail, automatic software updates, data output in MODBUS or BACnet. Simple Internet connection via LAN or SIM card router.
Greywater filtration tank
Volume: 4000 liters
Length: 2430 mm
Width: 995 mm
Height: 1950 mm
Weight: 240 kg
Air compressor operating noise: max. 48 dB (A)
Air compressor delivery rate: 120 L / min at 180 mbar
GWtec® station 440B with control system and 10” touch screen
Length: 2460 mm
Width: 1000 mm
Height: 1900 mm
Weight: 335 kg
Treatment capacity: 20,000 liters / day
Energy consumption: 0.5 kWh / m³ treated greywater
Filter fineness membrane filter: 20 nm
Active membrane surface: 160 m²
Backwash inlet connection: DN 40
Backwash outlet connection: DN 40
Filtrate outlet connection: DN 25
Electrical connection: 400 V / 50 Hz / 16 A
Electrical Power: 2.31 kW
Protection class: F
Protection class: IP 54
LAN connection network must be provided on site
Greywater collection tank and process water storage tank not included, see accessories and drawings