IDM ¦ Site report
Polisher, designed for two different modes of
production: a feed flow from 6 % to 30 % total
solids and a feed flow from 6 % to 9 % total
solids Both in a capacity that meets the volumes
of Mozzarella Whey.
Solids from the RO Polisher section are
returned to the feed tank to prevent drain
losses. The plant can be operated with a 20
% turn down in capacity related to the maximum.
An automated citric acid dosing system
reduces the pH of incoming whey based on
measurement for automatic control of the pH.
The new RO plant supplied by ALPMA/LTH
Dresden comprises additional equipment. A
new manifold for Mozzarella whey with two
filling lines has one emptying line to the new
RO plant. Also the integration of the new tank
storage was part of the design and implementation
from Alpma.
Manifold valves were installed in the feed line
to the UF plant to send RO concentrate with 9 %
10 · June/July 2020 ¦ international-dairy.com
The building
The Fonterra project from 2019 is an
extension on the existing production
plant, built in 2013, also engineered
by Advies- & ingenieursbureau
Het4kant b.v. When developing in
2012, Het4kant advised Fonterra to
take future expansion into account.
Especially to anticipate upon a load
bearing roof, as there was little free
space for high-care rooms next to
the building. This provision now benefited
the realization.
Issues during the process of engineering
and realization of the
expansion were, after all, that the
factory was in constant operation
for production; hygiene and existing
constructions had to be maintained
as they were. Not in the least because
the plan was well developped
from the start, and thanks to the
various parties and consultation with
the customer, the end result seems
as if it has never been different.
Het4kant is a civil engineering company
with 18 employees, including
project managers, project leaders,
building engineers, construction
calculators and 3D-modellers.
The professional scope includes all
engineering activities from feasibility
study up to support during construction.
Het4kant do Greenfield as well
as Brownfield projects, big and small.
Among the clientele there are mainly
dairy companies.
The heart of the Fonterra project is a new ALPMA RO HighTS
plant (photo: IDM)
Fonterra confirmed: ALPMA/LTH performed well above the
regular level (photo: IDM)
dry matter or to dose RO concentrate with 30 %
solids for blending with low solid whey. The correct
dosing is controlled by inline measurement.
New polished water storage and connections
to existing manifold were installed. A line
from the new RO plant for RO concentrate and
cooling of the concentrate to 5 °C was integrated.
Via this line it is possible to store the concentrate
(30 %) or to bring the 9 % concentrate
direct from the RO plant to the UF plant.
An additional circuit was introduced to
the existing CIP plant. Delivery and installation
of all necessary supply and return valves
with same design as the existing valves was
part of the package.
Fonterra uses Grundfos booster pumps,
valves from GEA and the loop pumps from Alfa
Laval. They all were arranged in way to ease
maintenance. The RO-Polisher permeate is, after
treatment, used for some phases of the CIP
process.
The leaders in the team that managed the plant expansion (from left): Johan Hoeksma,
Diana Krabbe and Mike Toplis, Fonterra, and Wietze Jongsma, ALPMA/LTH (photo: IDM)
/international-dairy.com
