Screen Filtration for Ballast Water Treatment Applications - Cross ...

Screen Filtration for Ballast Water
Treatment Applications

A world leader in water
Filtration of the world’s water:
we set the standards.
Earth isn’t called the Blue Planet for nothing. Over seven tenths of the
surface of our globe is comprised of oceans, seas, great and small lakes
and the networks of natural and man-made waterways and reservoirs
embroidering the landscape.
Taking care of our water and providing solutions in filtration and
treatment is the principal challenge facing Filtersafe®, one of the
world’s leading filtration specialists. Whether across industrial,
marine or resource drilling applications, our aim is to ensure
the world’s industries have ready access to the most advanced
filtration equipment available.
At the onset of each design application, Filtersafe’s primary objective
is to engineer and fabricate tailored and standard filter systems from a
range of highly sophisticated and proven materials, utilizing major R&D
initiatives to establish the most appropriate specification of materials
to ensure each finished product exceeds all mandated requirements.
At the very core of Filtersafe’s development philosophy, is a consistent
and dedicated focus on mechanical reliability and efficiency, too, all
combined with robust construction technologies. Simultaneously,
our emphasis commercially remains on the careful balancing of
environmental issues, alongside achieving consistent operational
economies for our customers.
Filtersafe® uses expertise developed over three decades in the design,
manufacture and application of high quality filtration solutions. It is
our often unique innovation that has helped the company contribute
enormously to the efficiency of world water management.
The company is uniquely positioned in the marketplace, and currently
services all major international markets from its Head Office and
manufacturing facility located in northern Israel.
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filtration technology.
Ballast Treatment: maintaining
the ecosystem of the oceans.
It may come as little surprise today, but over 80% of global trade volume
is still transported by ship. Whilst ballast water is used in all voyages, at
least half of each and every journey is undertaken with additional water
aboard to compensate for the absence of cargo. The movement and
sheer volume, therefore, of indigenous micro-organisms, sediment,
plant and animal life being drawn, shipped and discharged into alien
environments across the world within the ballast systems of these
vessels, is posing a major challenge to earth’s bionomics.
As a result, the International Maritime Organization has now introduced
the mandatory specification of automatic filters within ballast water
treatment systems on all new-build and retrofitted vessels.
CONTENTS
A world leader in water filtration technology.
Filtration of the world’s water:
Filtersafe® sets the standards. 1
Ballast Treatment:
maintaining the ecosystem of the oceans. 2
Filtersafe® BSF-Series automatic,
self-cleaning electric filters. 3-4
The technology behind the range. 5-6
Filtersafe® ballast water filtration technology. 7-8
BSF-Series Installation and configuration. 9-10
Social responsibility. 11
Research and development. 12
The proven science behind the range. 13-14
Specialising in the evolution of intelligent mechanical filtration systems
for industry, Filtersafe® now offers over 10 years’ experience specifically
in ballast water treatment, bringing an unrivalled economy, value and
environmental responsibility to seawater filtration. From improving
component technology through to the provision of dedicated pre- and
after- sales service, Filtersafe® provides a viable, functionally superior
and low-cost alternative to many conventional filtration methods.
FilterSafe®. No-one understands water better.
2

Automatic, self-cleaning
Benefits of Filtersafe® technology.
Filtersafe® supplies to a multitude of ballast water treatment companies
worldwide, many of which are based in Scandinavia, Europe and USA,
and which operate within an estimated $260-400 million annual
filtration market.
By specifying Filtersafe’s BSF-Series Automatic
Electric Filter into your ballast water treatment
system, you’re assured of the most efficient
seawater filtering technology available on
the market.
We’re one of the very few companies to have responded to the
challenge of developing self-cleaning automatic filtration solutions
specifically for this now highly-regulated application.
All Filtersafe® products incorporate leading edge, state-of-the-art
components, with advanced technology and proven performance
levels providing the base to combat marine bio-invasions in the
movement of water.
At the heart of each ballast water treatment system, lies the marketleading
BSF-Series Automatic Electric Filter. Installed as the primary
filtration module, these filters play a pivotal role in the removal of
sediment, micro-organisms and other marine elements.
3

electric filters.
Key
.
Advantages:
An unparalleled removal rate of TSS, organic matter and
sediment.
98% Removal of Zooplankton.
50% Removal of Phytoplankton.
.
A continuous, uninterrupted operating flow during cleaning cycles.
A highly-effective cleaning mechanism, reaching 100% of the
sintered screen, with minimal water discharge.
Filtersafe® is the market preferred
primary screen solution in ballast
water treatment.
Consumer
.
Benefits:
Dependable sediment controls to minimize sediment intake
.
to ballast tanks.
Improved operating efficiency for entire ballast water
.
treatment systems.
The lowest operating pressure capability on the market, able
.
to meet parameters of existing ballast water pumps.
Fully automatic, self-cleaning system efficiently handling large
.
volume of dirt-load during ballasting process.
Minimal footprint for an efficient installation solution in retrofit
and new-build applications.
4

The technology behind
2
6
3
Behind each BSF-series unit is a uniquely crafted
set of patented technologies, most notably, the
4-layered Sintered Screen and Proximity Nozzle®
cleaning mechanism.
11
1 4 5
7 8
Air-release Valves.
BSF-Series filters are fitted with a dual action air-release valve, which
incorporates ‘non-slam’ technology to ensure optimal performance.
PLC Controller.
Filtersafe® products employ an advanced PLC controller to monitor
system status and ensure efficient, effective and autonomous
operation.
9
Suction Pump.
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1
2
3
4
5
6
7
8
9
10
11
Inlet
Primary Course Screen
Weave-wire Screen
Suction Scanner
Proximity Nozzles®
Air Release Valve
Outlet
Flush Water Discharge Outlet
Flush Valve
Suction Pump
Worm Gear and Motor
When low operating pressure situations are anticipated, a suction
pump can be installed on the flush water discharge pipe. With the inclusion
of the optional suction pump, Filtersafe’s BSF-Series filter is able
to achieve class-leading low-pressure performance of 1.6 Bar.
5

the range.
Sintered Screen. Weave-Wire Technology.
By utilising unique and exclusive weave-wire sintered screen
technology, Filtersafe® obtains unparalleled Zooplankton removal
rates. Filtersafe’s fine screen is composed of four sintered, stainless
steel screen layers that create a strong, durable, reinforced filtering
element, which requires no support.
Two types of stainless steel are available:
• 316L, for standard applications.
• 904L Duplex SST, for high-corrosion resistance and prolonged filter
use.
Filtersafe’s superior Sintered Screen Weave-Wire technology gives
BSF-series filters a distinct advantage over the competition. Our
filtration performance is second-to-none and in terms removl of
organic matter and TSS.
For instance our 40 micron screen removes 98% of Zooplankton and
up to 50% of Phytoplankton from water intake. This performance
level is converted into exceptional sediment removal performance.
Close Proximity Suction Nozzles®.
Filtersafe® utilises its Proximity Nozzles® patented technology
to efficiently and effectively remove organic matter from the
filter screen without having to halt system operation.
This completely autonomous system uses calibrated
suction nozzles which cover less than 1% of the total screen
area to remove screened matter. This results in extremely
high suction forces that ensure complete cleanliness in
preparation for the next cycle and establishing it as up to
50% more effective than the traditional ‘candle’ system.
The Proximity Nozzles® enable a regulated and consistent
suction force to clean the screen. This resourceful hydraulic
system ensures maximum suction force for removing dirt from
the screen whilst minimizing residual water and pressure loss
from the cleaning process.
Consequently, compared to other technologies in the market,
Filtersafe® uses a significantly lower amount of ‘wasted water’
during the filtration’s flushing process.
Available Screens
Micron 400 300 200 150 120 100 80 50 30 20 10
Mesh 40 50 80 100 120 150 200 300 450 500 600
Protective Layer
Filtration (particle size) Control Layer
Protective Layer
Reinforcement Layer
6

Filtersafe® ballast water
Operating Pressures.
Due to the unique design of Sintered Screen and Proximity Nozzle®,
the Filtersafe® automatic filter is the only self-cleaning filter on the
market capable of sustained smooth operations as low as 1.6 Bar
(22psi) head pressure. Even at such extreme pressures, our Proximity
Nozzle® still allows 100% cleaning of the screen after each flush cycle,
ensuring continuous, uninterrupted filter operation without any risk of
‘blindness’.
Filtration Effectiveness.
Filtersafe® technology is designed to combat seawater’s marine bioinvasions,
Phyto- Zooplankton and general suspended solids. Filtersafe
BSF-series filters are offered down to 25 micron for BWT applications.
Component Durability.
Filtersafe® products have been engineered for performance and
longevity. Our automatic screen filters employ highly-durable, noncorrosive
components inside and out, to ensure robust, trouble-free
operation, requiring minimal maintenance. Filtersafe® also equips its
filters with minimal plastic materials, thereby abiding by ship-building
regulations regarding fire prevention.
Epoxy-phenol Coating.
Filtersafe® treats the body of its filtration systems with a complex
multi-staged curing process, which during development testing
logged over 2500 continous hours in a salt-cell study.
The process includes a zinc-phosphate treatment and an electrostatic,
oven-cured epoxy-phenol finish, which results in a durable protective
layer especially suited to the various rigours of marine applications
and adverse-saline-conditions. The process complies with numerous
international performance standards, including ASTMB-117.
Turbo TM Model.
All Filtersafe automatic screen filters can be equipped with our unique
Turbo TM technology. Designed to increase the filter’s capability to
operate in high dirt-load situations, this unique facility gives our
BSF-series filter a distinct market advantage in adverse, but equally
common, sediment-rich environments.
Conversely, our Turbo TM technology also allows us to equip our filters
with both nominal and absolute screens down to 25 micron for
increased removal rates.
7

filtration technology.
8

BSF-Series installation an
Filtersafe® can offer more versatility in spatial arrangements, by
supplying units in both horizontal and vertical formats. This ‘modular’
system enables a vertical filter to operate in the exact same manner
as a horizontally positioned unit and to the same performance
standard, whilst substantially reducing its area footprint.
Moreover, the ‘in-out’ flange connection positions can be fitted in
four different directions to suit your space and piping arrangement:
0º, 90º, 180º and 270º.
The flexibility associated with this modular approach ensures an
optimized spatial configuration is obtainable in the installation of
each ballast water treatment system.
BSF unit
installed in a fully
operational system.
Filtersafe® offers supreme intallation solutions. For example in a
retrofit system on an existing vessel, where space is often restricted,
Filtersafe® facilitates quick, economical and efficient installation
solutions. Competitor filters are at a distinct disadvantage in
comparison.
Vertical Configuration
0˚ Standard Position 90˚ Outlet 180˚ Outlet 270˚ Outlet
BSF-Series Standard * Specifications
Operating Specifications
Minimum Operating Pressure 29 psi (2 Bar), 21 psi (1.6 Bar) with suction pump
Maximum Operating Pressure 145 psi (10 Bar)
Electric Power
3 phase 380V-440V AC (50Hz)
Temperature Gauge
0˚C - 50˚C
Exhaust Valve
Pneumatically actuated butterfly valve
Design Specifications
Filter Housing
Carbon steel 37-2 with SMO fitting or St. st.
Housing Coating
200 micron Epoxy-phenol, Zinc-phosphate treated
Screen
Stainless Steel 316L or 904L Duplex
Seals
Synthetic Rubber
Internal Parts
St. st, PVC, Teflon, Erlite
* For specifications exceeding these parameters, please contact filtersafe.
9

d configuration.
Horizontal Configuration
Model **Max. In/Out Weight
Flow Rate
Connections
Single
gpm m 3 /hr Inch mm lbs kg
BS-025H-03 219 50 3 80 352 160
BS-050H-04 350 80 4 100 385 175
BS-050H-06 548 125 6 150 396 180
BS-070H-06 657 150 6 150 616 280
BS-070H-08 788 180 8 200 638 290
BS-100H-08 964 220 8 200 704 320
BS-100H-10 1,095 250 10 250 748 340
BS-100H-T-10 1,226 280 10 250 748 340
BS-150H-12 1,643 375 12 300 1,188 540
BS-150H-T-12 1,840 420 12 300 1,199 545
BS-200H-14 2,190 500 14 350 1,364 620
BS-200H-T-14 2,540 580 14 350 1,386 630
* BS-300SH-14 3,285 750 14 350 2,618 1,190
* BS-300SH-T-14 3,723 850 14 350 2,640 1,200
BS-400SH-16-T 4,380 1,000 16 400 2,750 1,250
BS-400SH-T-16 5,256 1,200 16 400 2,805 1,275
* BS-600SH-16-T 6,570 1,500 16 400 6,050 2,750
* BS-600SH-T-18 7,446 1,700 18 450 6,380 2,900
* BS-900SH-20 9,855 2,250 20 500 7,700 3,500
* BS-900SH-T-20 10,950 2,500 20 500 8,030 3,650
* BS-1200SH-24 13,140 3,000 24 600 9,130 4,150
* BS-1200SH-T-24 14,454 3,300 24 600 9,350 4,250
* available in early/mid 2012
** with 40 um screens and according to the INO G8 guidelines
Duplex for ease of installation (Retrofit)
BSF-300H 3,285 750 14 350 2,640 1,200
BSF-300H-T 3,723 850 16 400 2,684 1,220
BSF-400H 4,380 1,000 16 400 3,212 1,460
BSF-400H-T 5,256 1,200 16 400 3,256 1,480
Vertical Configuration
Model **Max. In/Out Weight
Flow Rate
Connections
Single
gpm m 3 /hr Inch mm lbs kg
BS-025V-03 219 50 3 80 429 195
BS-050V-04 350 80 4 100 462 210
BS-050V-06 548 125 6 150 473 215
BS-070V-06 657 150 6 150 693 315
BS-070V-08 788 180 8 200 715 325
BS-100V-08 964 220 8 200 781 355
BS-100V-10 1,095 250 10 250 825 375
BS-100V-T-10 1,226 280 10 250 825 375
BS-150V-12 1,643 375 12 300 1298 590
BS-150V-T-12 1,840 420 12 300 1309 595
BS-200V-14 2,190 500 14 350 1474 670
BS-200V-T-14 2,540 580 14 350 1496 680
* BS-300SV-14 3,285 750 14 350 2,618 1,190
* BS-300SV-T-14 3,723 850 14 350 2,640 1,200
BS-400SV-16-T 4,380 1,000 16 400 2,750 1,250
BS-400SV-T-16 5,256 1,200 16 400 2,805 1,275
* BS-600SV-16-T 6,570 1,500 16 400 6,050 2,750
* BS-600SV-T-18 7,446 1,700 18 450 6,380 2,900
* BS-900SV-20 9,855 2,250 20 500 7,700 3,500
* BS-900SV-T-20 10,950 2,500 20 500 8,030 3,650
* BS-1200SV-24 13,140 3,000 24 600 9,130 4,150
* BS-1200SV-T-24 14,454 3,300 24 600 9,350 4,250
* available in early/mid 2012
** with 40 um screens and according to the INO G8 guidelines
Duplex for ease of installation (Retrofit)
BSF-300V 3,285 750 14 350 2,750 1,250
BSF-300V-T 3,723 850 16 400 2,794 1,270
BSF-400V 4,380 1,000 16 400 3,322 1,510
BSF-400V-T 5,256 1,200 16 400 3,366 1,530
The Duplex tables are for illustration purposes only, all types of configurations are available upon request, please contact Filtersafe.
10

Social responsibility.
All Filtersafe® filtration systems are designed to incorporate
materials which are selected for minimal environmental impact.
Each component is tested to ascertain material weakness in the
light of its intense activity in harsh and damaging conditions.
Filtersafe® automatic systems are also designed and engineered
to compliment the materials specified by clients in their
manufacture of complete treatment systems specified for
maritime purposes.
Research
11

Your Assurance of Quality.
Filtersafe® manufactures its cutting-edge BSF-series filter in
accordance with the following International Performance and
Quality Standards: ISO 9001: 2008, DNV 2009.
Our association with the ISO 9001:2008 mark gives Filtersafe®
confidence in knowing we can comply with any standard required
by our clients. We can build in accordance with ASMI standards as
well as other classification societies’ approvals, and upon request,
attain ASMI certification. In association with several of our clients, we
have also achieved Approval status from Germanischer Lloyds.
Worldwide Service Network.
Being a globally-focused company, Filtersafe® prides itself on
unprecedented levels of service to its customers. Filtersafe®
enjoys a worldwide reputation for its commitment to the quality
and performance of each filtration unit we sell.
Partners and Contractors.
We have established and enjoy partnerships with first-class
contractors who utilise leading-edge technology in industrial
fabrication and heavy machining.
and Development.
Innovation in Filtration Science.
Our R&D programs have also played active roles in maintaining
Filtersafe’s pioneer status in the water filtration industry. The
confidence and assurance we assume with the procurement of
trustworthy technologies and operating performance, have helped
shape a strong ethic pursued throughout research, development and
advanced testing.
The R&D programs have laid the foundations for our market-leading
technology and ensured our status as principal innovators in our
field. In conjunction with our recent partners, NIOZ, MERC, GSI and
University of Newcastle, UK, among others, Filtersafe® has tested
the performance of its automatic screen filters to meet the rigorous
demands of all marine industry standards.
Through scientific development, we have been able to implement
the following advances in our product range:
Sintered Screen technology; effective and economic
filtration media.
Proximity Nozzle® technology that performs autonomously
under even the most severe conditions.
Corrosion prevention.
Increased energy efficiency.
Refined water-saving methodology.
Courtesy of NIOZ
12

The proven science behin
Class leading removal rates of Organic matter.
D2 Standard Replica Tests
Filtersafe® in conjuction with its research partners, has successfully
proven its industry leading performance in the Ballast Water Treatment
filtration sector by conducting a series of scientific tests on its Weave
Wire Sintered Screens and Proximity Nozzle® technology. The results
clearly indicate positive ecological benefits and lucrative advantages
for all companies involved in the business of BWT systems.
Biological Test Data
Test Cycle
PHYTPLANKTON
Average Removal
ZOOPLANKTON
Average Removal
% of org. 10 ≤50 % of org. >50
1 62.80 99.20
2 47.56 94.29
3 - 97.93
4 31.45 96.19
5 54.94 93.85
Phytoplankton Test Methodology
Number of organisms per 20 liter
Organisms 10 µm ≤ 50 µm.
Three 20L replicates for each “control” and “treated”.
40 µm filter was used.
Water pumped into a storage tank, zooplankton and algae were
added.
Phytoplankton Test Results
Zooplankton Test Methodology
Organisms > 50 µm.
Three 100L replicates for each “control” and “treated”.
40 µm filter was used.
Water was pumped from Cullercoats Bay.
Zooplankton Test Results
Number of organisms per 100 liter
13
Courtesy of NIOZ
Conclusions
Highly effective at removing organisms
> 50 µm showing > 98% removal.
Has moderate effect in removing organisms
10 < 50 µm showing an average 50% removal.

d the range.
Preventing accumulation of Sediments in ballast water tanks.
Filtersafe® has recently concluded scientific tests in association with
BaWaPla and NIOZ in order to determine the the BSF-series filter’s ability
to reduce sediment load in BWT systems and ballast water tanks.
Test Methodology
Filtersafe® chose the wet volumetric TSS loading method rather than
the standard dry and weighing method in order to best simulate true
conditions in ballast water tanks.
Sediment Test Results
Results of this study parallel a series of tests performed at NIOZ and
Newcastle University (UK), concluding that Filtersafe® BSF-Series
filters are highly effective in removing Total Suspended Solids (TSS)
loads by up to 96% with our standard 40 μm filter.
This is an obvious benefit for ship owners with long periods
between ballast water tank cleaning and compliments the very high
performance of organic matter removal obtained by our BSF-series
filters.
Conclusion
Very high removal of TSS from ballast water
BSF-Series 40 µm screen proving 96% removal.
Sediment Test Data
Results ml
Results ppm
Pre-Filter 2.5 2500
Post Filter < 0.1 100
Removal Rate > 96%
BEFORE
2.5 ml sediment
residue
AFTER
0.1 ml sediment
residue
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For more information check our website
and locate the email or telephone number
of your relevant customer representative.
3 Dolev Street, Tefen Industrial Park,
P.O. Box 23, 24959, ISRAEL.
Tel: +972 4 9873620 / 1 Fax: +972 4 9873617
Cell: +972 (0)54 5960374
Email: sales@ballastsafe.com
Visit us at: www.ballastsafe.com
© Copyright Filtersafe® 2010 - BWT 10/2010 v.2
Filtersafe reserves the right to change any of the information presented in this document
without prior notice. The data presented in this document is for general information only
and cannot be used for quotation purposes. Please contact Filtersafe for specific quotes.
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