Bioselect BS
EXCELLENCE – MADE TO LAST
THE
BIOSELECT BS
Easyframe version
The Bioselect BS has been specially designed for the effective
thickening of liquid manure and digestate. In a completely closed
system, the separator thickens the inlet substrate to form a solid
phase with a dry solids content of 5 to 22 %. The thickening degree
is infinitely variable.
EFFECTIVE THICKENING
THE BÖRGER BIOSELECT BS
The thickened phase has a very high energy concentration and is ideally suited to be fed into
a biogas plant. In addition, it contains a high nutrient concentration which simplifies the
nutrient management. As an alternative, the Bioselect BS can be used to regulate the DS
content in the fermenter.
To be able to provide the appropriate separation unit for each company size, Börger offers
the Easyframe version of the Bioselect BS in three sizes with flow rates of 40, 75 or 150 cubic
meters per hour.
Together with the Börger control technology and the thick matter pump, the Easyframe version
of the Bioselect BS is installed on a functional frame with minimum space requirement.
THE OPERATING PRINCIPLE
The feed pump conveys the inlet substrate into the Bioselect. Here, the solid phase is sepa-
rated from the liquid phase. The auger transports the solid phase to the thick matter pump.
The liquid phase pump conveys the liquid phase to where it is used next.
By varying the flow rate of the pumps, the dry solids content (DS content) in the thick phase
can be adjusted. The solid phase can still be pumped and is conveyed to the requested storage
location by the thick matter pump.
Model Flow rate:
Bioselect BS 40 up to 40 m³/h *
Bioselect BS 75 up to 75 m³/h *
Bioselect BS 150 up to 150 m³/h *
INLET SUBSTRATE
e.g. 6 % DS
LIQUID PHASE
e.g. 0.5 – 3 % DS
SOLID PHASE
e.g. 12 – 16 % DS
* the exact flow rate depends on the
DS content in the inlet substrate
1
2
3
4
5
6
6
THE CONTROL TECHNOLOGY
The Börger control technology perfectly coordinates the operation
of the feed pump, the thick matter pump, the liquid phase pump
and the Bioselect BS. It ensures that the Bioselect is always
operated at optimal capacity and runs fully automatically.
All parameters can be set and controlled via the clearly structured
touch display.
THICKENING IN A CLOSED SYSTEM
The inlet substrate is fed into the Bioselect BS through the inlet
opening (1). An auger (2) which is surrounded by a wedge wire
screen (3) rotates inside the Bioselect.
The liquid components flow through the wedge wire screen into
the outer vessel area. The liquid phase is drained through the
liquid outlet (4).
The rotating auger unit conveys the solid components into the
conical press channel (5) which ends in a thick matter pump
(rotary lobe pump) (6).
The thick matter pump ensures that the thickened matter (solid
phase) is reliably sealed and at the same time transfers it for
further use. The thickening degree can be adapted by con-
tinuously adjusting the pump speed.
THE AUGER WITH PROFILE GROOVE
Fibers are caught in the patented profile groove of
the auger, where they function as a brush. Metallic
rubbing between the auger and the wedge wire
screen is avoided by this brush.
This unique technology increases the service life
of the wedge wire screen and the auger many
times over.
A
B
C
SUPPLYING COMPLEX SYS-
TEMS
The Bioselect BS can be used to supply
complex systems. The medium is sup-
plied from the requested tank to the
Bioselect through the manifold (A).
The liquid phase pump (B) transports
the liquid phase to its destination. The
thickened phase which can still be
pumped is conveyed by the thick mat-
ter pump (C) for further use.
AT A GLANCE
+ Dry solids content can be adjusted continu-
ously from 5 to 22 %
+ The thickening degree can be adjusted during
operation
+ Fully odorless operation in a closed system
+ Three sizes with flow rates of 40, 75 and 150
cubic meters per hour
+ Ready-to-connect complete unit
INLET SUBSTRATE LIQUID PHASE
SOLID PHASE
MORE GAS WITH THE SAME TANK SIZE
APPLICATION EXAMPLES
APPLICATION EXAMPLES
A pump conveys raw liquid manure / digestate into
the Bioselect BS. The BS thickens this material.
The solid phase is conveyed into the fermenter
by a pump.
The liquid phase is transported into a storage tank
for further use.
A pump extracts recirculate from a fermenter.
The BS thickens the material and either conveys the
solid phase, e.g. with a DS content of 15 %, back into
the fermenter or into the secondary fermenter.
The liquid phase is transported into final storage or
to further processing.
UNIQUE EASE OF MAINTENANCE
The Bioselect is maintained at its installation site. The control cabinet is simply swung to the side
and the Bioselect is moved from the working into its maintenance position.
In the maintenance position, a space-saving replacement of all wear parts is easily possible.
The operator themselves can maintain the Bioselect.
Easy, cost-effective and quick.
EXCELLENCE – MADE TO LAST
www.boerger.com
P11_11_2022
Börger GmbH
Borken-Weseke, Germany
Phone +49 2862 9103-0
info@boerger.de
Börger Benelux
Ootmarsum, Netherlands
info
@boerger.nl
Boerger LLC
Chanhassen, MN, USA
america
@boerger.com
Börger France Sarl
Wittersheim, France
info
@borger.fr
Boerger Polska Sp. z o.o.
Gliwice, Poland
info
@boerger.pl
Börger UK Ltd.
Staffordshire, United Kingdom
uk
@boerger.com
Boerger Pumps Asia Pte Ltd
Singapore
asia
@boerger.com
Boerger Pumps Asia Pte Ltd
Gurugram, Haryana, India
india
@boerger.com
Boerger Pumps (Shanghai) Co., Ltd.
Pudong, Shanghai, China
shanghai
@boerger.com
Headquarters