AlfaFlash ZLD
Réutilisez vos eaux usées et valorisez vos déchets avec le système ZLD. Dotés de l'évaporateur AlfaFlash et d'un décanteur centrifuge, les systèmes ZLD éliminent les particules dissoutes et en suspension des eaux de process et autres rejets liquides afin de les collecter pour retraitement, ou afin d'en récupérer les matières valorisables pour les réutiliser ou les vendre. Vos eaux usées peuvent être recyclées pour un usage interne afin d'atteindre le zéro rejet liquide et limiter ainsi les coûts
Système modulaire personnalisé pour ZLD et processus de cristallisation
- Élimination des eaux usées
- L'eau distillée de haute qualité peut être réutilisée, permettant de récupérer jusqu'à 98% des rejets liquides
- Solides réduits au minimum en vue d'une réutilisation ou d'une réduction des coûts d'élimination
- Haute efficacité énergétique
- Installation compacte et robuste, idéale pour une large gamme d'applications
Les systèmes AlfaFlash ZLD éliminent les rejets des eaux usées liquides, génèrant des solides à éliminer ou à réutiliser, et recyclent une eau distillée de haute pureté qui peut ensuite être réutilisée.
Les systèmes AlfaFlash ZLD contribuent à la fois à la protection de l'environnement et à la rentabilité de votre entreprise. Ils sont par ailleurs facilement adaptables pour répondre à l'évolution constante des réglementations. La réputation d'Alfa Laval, sa grande expérience des solutions thermiques et de la technologie de séparation garantissent une solution rentable.
Modular systems in standard configuration or customized to your needs
Mechanical vapor recompression (MVR)
- Requiring electricity as utility
- Significantly less energy consumption compared with steam driven systems
- Available in 1,5-6 ton/hour evaporative capacity or to your specific capacity needs in a customized configuration
- Available as pre-assembled module
- Available in ZLD configuration equipped with crystal dewatering decanter centrifuge to produce a dry solids phase, and as stand-alone evaporator.
Multiple effect systems
- Available Multi-effect using steam, hot water or waste heat to drive the evaporation. Also available with thermal vapour recompression (TVR) enabling less steam consumption.
- Available as pre-assembled module
- Available in ZLD configuration equipped with crystal dewatering decanter centrifuge to produce a dry solids phase, and as stand-alone evaporator.
Heat sources for evaporation system
Configuration Options
Alfa Laval evaporation systems can use heat from different sources such as mechanical and thermal compression as well as waste vapours from dryers.
Mechanical vapour recompression, MVR
- Low (or no) steam consumption
- Uses electricity
Multiple-effect system
- Saves energy by reusing steam
- Simple and flexible
Thermal vapour recompression, TVR
- Low cost with reduced steam consumption
- Simple, no moving parts
Waste heat from your process
- Utilize low grade steam or waste heat
- Recover energy from exhaust gases
Drive your evaporation process using heat recovered from exhaust gases
Combining Alfa Laval micro boiler into your evaporation system, you are able to drive your evaporation process using energy in your energy from your exhaust gases. The Alfa Laval Aalborg Micro is a uniquely compact boiler/economizer designed for waste heat recovery. This can help you to reduce energy consumption in your plant.
Working principle
Water is fed into the AlfaFlash heat exchanger. After heating fluid is then pushed through the flash orifice. The mixture is now essentially split in two phases – concentrate and vapour, which enters the cyclone separator where centrifugal forces boost vapour liquid separation. Vapour rises into space where mists and fine droplets are removed and the remaining concentrate flows into the recirculation pump. A side stream of concentrated liquid is then pushed through to the decanter where water is separated from solids.
Decanter centrifuge working principle
Alfa Laval decanter technology is used for dewatering suspended solids, resulting in minimum waste and maximum water recovery, with high removal efficiency for micro-particles as well. Watch the video to learn more!
AlfaFlash working principle
Dig deeper into the functions of the AlfaFlash ZLD system. Watch the AlfaFlash animation and experience our forced circulation evaporation technology first hand
Industries and applications
Many industries and companies can benefit from a ZLD solution. The below overview of water-intensive processes and applications can help you identify potential benefits of ZLD operation at your facility
HVO, renewable fuels and bio-based chemicals
Refineries, bioplastic manufacturers and 2G ethanol makers can recycle and reuse wastewater from their renewable energy processes.
Manufacturing industry and service centres
Service centres, and automotive, tool and electronics manufacturers all need to minimize or even eliminate wastewater to boost profits and achieve sustainability goals.
Recycling industry
Alfa Laval offer AlfaFlash ZLD systems for crystallization chemical recycling loops (leaching) and more. We can help you with your recycling process and your recycling waste stream.
Process industry
AlfaFlash ZLD system and process crystallizers can be used in a variety of processes in the process industry.
Alfa Laval service centre recycle almost 100 percent of its water
Learn more
Watch the videos to learn more about the AlfaFlash ZLD system!