DUMO Algacleaner english

Agenda:
1. Benefits of DUMO Algacleaner.
2. Applications.
3. Cases.
4. Ultrasound technology.
5. The problem with algae.
6. Algae and biofilm.
7. Research agreements.
8. Algae destruction and inhibition.
9. Research: Labs and field tests.
10. DUMO Algacleaner.

1. Benefits of DUMO Algacleaner
 Controls and prevents the
emergence and growth of algae and
biofilm.
 Avoid chemical biocides
 Low power consumption. Available
solar energy.
 Application of several ultrasonic
frequencies for different algae
species.
 Easy installation and maintenance.
 Safe for humans, animals and
plants.

2. Applications
Ponds
 Friendly for fish and
waterplants.
 Easy to install and
maintain.

Irrigation
 Prevents clogging of filters.
 No chemicals are
necessary.

2. Applications
Lakes and reservoirs
 Solar system available.
 Optimum installation of
multiple devices covers
efficiently large surfaces.

Fish-farms
 Safe for animals.
 Controls algae, biofilm and
pathogens.

2. Applications
Swimming-pools
 Reduces chlorine doses.
 Eliminates biofilm.

Cooling towers
 Prevents biofilm and
pathogens.
 Reduces chemical
treatments.

3. Cases: Irrigation
The water that fills the irrigation pond
comes from a channel that adds a lot of
slime and nutrients, which increase
aggressive algae bloom in summer.

"We continually had the filters clogged by
algae, and this was a real problem for
drip irrigation that we tried to avoid it even
with chemical biocides. This was finally
resolved with the installation of DUMO
Algacleaner “.

Christophe Bouchet
Production Manager
Primor Fruit S.A., San José Farm
Seville, Spain

3. Cases: Irrigation

“After six months, the water is still clean
and without algae. I am very happy with
this device that avoid any chemical
addition as copper sulphate. It is more
economical and, of course, ecological.”

Alexandre Adnot
Owner, Los Algodonales Farm
Alcalá del Río, Spain

3. Cases: Ornamental lake
"... The lake water has remained in
perfect condition, without algal
blooms, loss of transparency or odor
formation, demonstrating a good
performance of the installed
equipment and the effectiveness of
ultrasound treatment.“

Luis Piñana
Area Manager, Acciona Agua
Madrid, Spain

4. Cases: Singular place
“The eight ultrasonic units installed in
the ornamental channel -horseshoe
shaped- of the emblematic Plaza de
España in Seville, have succeeded in
eradicating the problem of algae and
odors.”

Antonio Díaz
Operations Manager, EMASESA
Seville, Spain

4. Cases: Water treatment

“The equipment Algacleaner has
prevented the formation of a higher
type of algae (Lemna) that floats on
the surface of the ponds when the
water has good quality.“
Site: Ulldecona WWTP

Pedro Polo
Commercial Director, Acciona Agua Before and after
Barcelona, Spain

4. Ultrasound technology
 Sound is a wave where excited magnitude is pressure.
 Ultrasounds are a kind of sonic waves which
frequencies are over 20 kHz (maximum limit
detectable by the humans).
 As sound, ultrasounds need a medium for propagation.
In the case of DUMO Algacleaner it is the water.
 Sound waves are 5.5 times faster in water than in air.

20 Hz 20 kHz
Infrasound Acoustic Ultrasound

4. Ultrasound technology
 Ultrasound is a pressure
wave that propagates
through a medium. Sound or sonic pressure
Sound is a wave of positive and negative pressures
 Successive pressures, (+)
and (-), mean that the
particles move and
propagate the wave.
 The amplitude of the
wave (A) determines the
power (P), (P = E/t, E =
mω2A2/2) and especially
the intensity I
(P/S), measured in
W/cm2.

5. Ultrasound technology: DUMO
 DUMO Algacleaner offers a great output
power, resulting in microcavitation in small
closed areas (as an aquarium).
 However, thanks to its design, cavitation in
open areas disappears and this great
power wave passes to get coupled and
adapted, penetrating the water, reducing
losses and increasing its reaching distance
and destructive power.
 Ultrasound can eliminate algae without
cavitation but only if there is a powerful
ultrasonic pressure source.
 Additionally to power, other parameters
such as frequency, shape and timing of
the pulses are necessary.

4. Ultrasound technology: DUMO
 The appropriate ultrasonic wave
propagation affects only algae, not
higher plants or vertebrates.
 Algae spores and their germination
are dramatically reduced.
 Bacteria show similar behaviour to
algae (disintegration and / or
inhibition).
 All those water surfaces under the
sonication area, will be
environmentally controlled, and
the problem caused by algae and
other microorganisms, resolved.

4. Ultrasound technology: Effects
 Source of pressure which may act
on a gas vesicle inside a
protasyotic cell:
 (a) atmospheric pressure;
 (h) hydrostatic pressure due to
depth;
 (t) cell turgor pressure;
 (c) pressure from surface tension
at the cell wall, and over-pressure
caused by ultrasonic pulses;
 (s) pressure from surface tension
at the gas vesicle wall and over-
stress due to intracellular over
pressure;
Diagram based on reference 108 of The Royal Society
(London), completed with our own research.  (g) pressure of the vacuole gas.

5. The problem with algae
Filamentous green algae
 There are algae in all aquatic
environments, and even humid
terrestrial ones.
 Microscopic algae are common
in coasts, reservoirs, irrigation
ponds and channels, ponds,
swimming-pools, water tanks
and cooling towers.
 If algal concentration grows
Diatom algae rapidly (bloom), water color
turns to green, yellow or red.
 These blooms are usually the
result of an excess of nutrients
in the water (eutrophication).

5. The problem with algae
Adverse effects
 Many facilities are severely
compromised (pumps, pipes,
sprinklers, etc).
 Odors occur because of bacteria.
 The resulting decrease in dissolved
oxygen in water increases the
mortality of fish and insects.
 Some types of algae produce
neurotoxins, a very harmful biological
impact on the environment.
Algal bloom  Health problems in swimming-pools,
contaminated cooling towers, etc.

6. Algae and biofilm
 The algae are susceptible to get damaged when it
is vibrated at a critical frequency.
 The easiest species to remove are the blue-green
bacteria types, generally known as cyanobacteria.
 The gas vacuole contains many small cylindrical
vesicles 75 x 300 nm in size, often in groups.
 The wall of the gas vacuole, which is permeable
to gases but water, is about 2 nm thick.
 These vacuoles are found primarily in plankton
cyanobacteria, and their main purpose is to
float or sink to get the optimum amount of
nutrients and solar energy.
 Some fungi and archaea bacteria have gas
vesicles and are also affected by ultrasound.

6. Algae and biofilm

 Transverse section
of a dividing cell of
the cyanobacterium
Microcystis sp.,
showing hexagonal
stacking of the
cylindrical gas
vesicles.

Micrograph by H. S. Pankratz). Magnification x31,500

7. Research agreements
 Cooperation agreements with European and local
universities.
 New DUMO Algacleaner has been developed, supported
and verified by different Physics and Biological
authorities.

8. Algae destruction
 Phytoplankton
chlorophyll, which allows
it to capture solar energy,
is a basic parameter to
determine the active
biomass.
 The application of
ultrasounds reduces the
density of filaments and
increases the cell
disruption.

8. Algae destruction
Destruction
Release of chlorophyll A
1000  The destruction of the
mg Chlorophyll A / m3

800 cells causes the
600 release of chlorophyll
to the medium.
400
 The analysis shows a
200
decrease in mg of
0 chlorophyll A, and in
1 2 3 4 the number of cells.
Weeks
Chlorophyll A Trend

8. Algae inhibition
 Algae, fungi, protozoa and other eukaryotic,
aquatic microorganisms reproduces by a
mitosis process.
 Chromosomes, the carriers of the DNA,
settle in the centre of the cell and then
splits and moves to opposite sides. The cell
membrane then constricts and separates
the mother cell into two daughter cells.
Dr. Liang Gao, Howard Hughes Medical Institute, Janelia
Farm Research Campus, Ashburn, Virginia, USA  This phase, called anaphase, is mediated
by fibres known as microtubules, which
assemble from the sides to the centre of
the chromosomes.
 Any disturbance whatsoever destabilize the
microtubule chain, will prevent cells from
multiplying.
 This is how the ultrasonic pulses disrupt the
polymerization of the microtubules, thereby
Dr. Martin Huss, Department of Biological Sciences, Arkansas stemming cellular growth.
State University, USA

8. Algae inhibition
Inhibition
Release of chlorophyl A
900
 Chlorophyll A naturally
mg Chlorophyl A / m3

increases without the
700
application of US.
500
 When DUMO
300 Algacleaner is applied
100 to, chlorophyll A
-100
density not only
1 2 3 4
maintains but reduces
Weeks
in medium volume.
With US Without US
Trend w/ US Trend w/o US

9. Research: Labs
 The Biotechnology
Department of Toscano
Medioambiente, after several
years of rigorous
experiments, has developed
the technology behind
DUMO Algacleaner.
 This technology, thanks to
the optimal production of
ultrasonic waves, has come
to be an innovative
technique for efficient control
of algae blooms.

9. Research: Labs
Tests show, according to the reports
from Bioindication Group of the
University of Seville, the breaking of
filaments and the destruction of algae
cells.

Withouth sonication

2 min. sonication

5 min. sonication

9. Research: Field tests
Moret Park - Huelva, Spain

Mobile device for field tests

10. DUMO Algacleaner: Certified
production
The manufacturing process of DUMO
Algacleaner is performed under
environmental and quality standards
(ISO14001 and ISO9001), certified by
Bureau Veritas.

10. DUMO Algacleaner: Installation

10. DUMO Algacleaner: Specifications
Power AC 115 / 230 VAC (selectable)
Power voltage frequency 50 / 60 Hz
Power consumption Average: 80-90 W / Max.: 90-130 W
Operation temperature range -10º to +70º C (14º to 158º F)
Average reach 150 m
Operation basis (double core) Multi-frequency (automatic)
Overvoltage protection YES
Operation indicator LEDs in float and control box
Programmable timer ON / OF YES (by default)
Preset programs YES (by default)
Operation periods configuration YES (by default)
Control box protections YES
A. Float Cable protections YES
B. User manual Sensor protections YES
C. Control box Transmitted power (effectiveness) 60-80 W
D. Transducer and cable Emission angle 168º

E. Stainless steel anchorage Environmental protection IP55 (box)

F. Fixing clamps CE approval 61000-6-3
Weight 7.3 kg

10. DUMO Algacleaner: Video



10. DUMO Algacleaner: Highlights
 Effectiveness against algae
 Our equipments emit different frequencies, harmonic among them, creating
waves of different length. This effect generates effective wavefronts against
algae.
 Water coupling (matching)
 Our transducer incorporates a special elastomer that adapts the transmitter to
the water density, resulting in a more effective penetration of ultrasonic waves
(reaches longer distance and more powerful).
 Power released to the medium (acoustic pressure).
 Power is important because not only the pulses go further, but because they
come strongly enough to damage and inhibit algae growth.
 A proof of our effectiveness is microcavitation on the precise threshold, that
pulses achieve to penetrate the water.
 Electric power
 Mean maximal peak. Because it is a system emitter of pulses, the effective
average power is four times smaller.
 DUMO Algacleaner
 This is the system with the best balance among these parameters (Signal /
Coupling / Pressure / Power) in the market.

DUMO Ultrasonic Technology
More solutions for water and biosolids
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Thank you

DUMO Algacleaner english

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DUMO Algacleaner english