Alfa Laval beer recovery system0 pages

Introduction
Alfa Laval membrane filtration systems provide a
straightforward solution that enables breweries to both
recover beer and concentrate the surplus yeast at the same
time. This is done via a highly efficient, continuous process.
50–60% of the surplus yeast, the equivalent of 1–2% of the
total beer production, can be filtered out and recovered as
high-quality near-sterile beer with no oxygen pick-up. During
this process, the yeast cells are concentrated up to a level of
20% dry matter.
Design
The special Alfa Laval cross-flow system for beer recovery
features purpose-designed Alfa Laval microfiltration
membranes, mounted in the well-proven Alfa Laval M39H
plate-and-frame module with open channels.
The special FSM0.45 membranes are made of polyvinylidene
fluoride (PVDF), with a pore size of 0.45ìm. These inert,
beverage-grade fluoropolymer membranes comply with all
FDA regulations.
The membrane surface in one unit can vary from 30 m2 up to
168 m2. Depending on the capacity required, the system will
consist of one to five loops.
Standardized microfiltration membrane filtration system for beer recovery
Alfa Laval beer recovery system
Optimized flow dynamics
The Alfa Laval M39H plate-and-frame module has been
developed specifically for the microfiltration of medium-tohigh
viscosity products that contain suspended solids. The
open-channel design results in good flow dynamics under
low-pressure conditions. This also keeps energy consumption
to a minimum.
The Alfa Laval surplus yeast filtration system provides the
following features and benefits: :
Features
• 0.45ìm microfiltration membranes ensure good retention
of both yeast and other micro-organisms
• Plate-and-frame system with open channels that ensure
good flow dynamics and high efficiency
• Modular design makes the system easy to extend to meet
growing requirements
• Low membrane replacement cost compared to ceramic
systems
• Fully automated system that can operate continuously for
20 hours/day, with no batch recirculation required
• Gentle handling of yeast
• Compatible with commercially available cleaning agents
• Beer recovery from fermentation and maturation surplus
yeast