ARSENIC REMOVAL FROM DRINKING WATER, WASTEWATER, EFFLUENT.pdf

MdSaifulIslam289 21 views 22 slides Aug 03, 2024
Slide 1
Slide 1 of 22
Slide 1
1
Slide 2
2
Slide 3
3
Slide 4
4
Slide 5
5
Slide 6
6
Slide 7
7
Slide 8
8
Slide 9
9
Slide 10
10
Slide 11
11
Slide 12
12
Slide 13
13
Slide 14
14
Slide 15
15
Slide 16
16
Slide 17
17
Slide 18
18
Slide 19
19
Slide 20
20
Slide 21
21
Slide 22
22

About This Presentation

ARSENIC REMOVAL FROM DRINKING WATER, WASTEWATER, EFFLUENT

What is the necessity for arsenic removal plants?
Arsenic is a naturally occurring element found in both groundwater and soil. Concentration levels might differ considerably according to where you reside. It is exceedingly poisonous at high ...


Slide Content

This intellectual property belongs to
WATERMAN ENGINEERS AUSTRALIA
Cannot be used, reproduced without
permission
[email protected]
watermanaustralia.comwatermanaustralia.com

Arsenic Removal System
Nano-adsorbent Filter
[email protected]

Introduction
Arsenic, carcinogenic element, a poisonous element presents
in water to filter it out before use for drinking and in pre-
treatment of wastewater treatment plants.
As the problem of drinking water contamination alone affects
more than 150 million people worldwide.
Therefore, several conventional techniques have been used to
remove arsenic (As), including oxidation, coagulation,
adsorption, etc., but due to their maintenance costs, there is
a push for sophisticated, affordable nanofiltration membrane-
based technology

With the aid of
catalytic, nano
adsorbent filter media
for drinking water and
for the pre-treatment
of industrial
wastewater,
WATERMAN
ENGINEERS
AUSTRALIA designs,
manufactures, and
commissions arsenic
removal systems to
fulfil the growing need
for fresh and drinking
water.
In order to pre-treat
for wastewater
treatment, it is
required to remove
Iron and Manganese,
which this catalytic,
nano adsorbents
filtration media will
help to do.
In order to protect
water security, this
article focuses on an
improved
nanofiltration (NF)
approach for removing
arsenic (As).
[email protected]

❖Chemical precipitation,
adsorption,
coagulation,filtering etc.are
some of the developed
techniques for removing "As."
❖In the area of separation
technology, nano adsorbent
filtration is a technology that is
advancing.
❖Nano adsorbenttechnology for
the filtration of drinking water
has recently gained popularity
due to its ease of use,
adaptability, stricter
restrictions, lower costs, and
expanding commercial
availability of a wide range of
membranes
[email protected]

[email protected]
It simply needs a small quantity of energy and no chemicals or
additions.
Additionally, the world population is growing at a rate of 80 million
per year, which causes a 64 billion cubic metre annual increase in
water consumption
In recent years, one of the biggest health risks has emerged because
of drinking water that contains arsenic

The USEPA, WHO and EU reduced the initial arsenic contamination level
of 50 ppb to a maximum of 10 ppb.
Therefore, reducing these health hazards for those who live close to water
bodies with high arsenic levels requires a focus on arsenic remediation
[email protected]

Adsorption is thought to be the least expensive
Most adsorbents, according to the literature, cannot be employed in field
applications
because of problems with their poor adsorption capacity and excessive
levels of particle leaching into filtered water, which pose health risks
[email protected]

Ultra-low-cost catalytic, nano
adsorbent filter for arsenic
removal
[email protected]

Arsenic, carcinogenic element, a poisonous element presents in
water to filter it out before use for drinking and in pre-treatment of
wastewater treatment plants
WATERMAN ENGINEERS AUSTRALIA has developed a completely
indigenous ultra-low-cost filter capable of absorbing arsenic
This easy-to-handle filter is made from catalytic nano adsorbent
along with sand or carbon filtration system or dual media filtration
unit that has the capacity to adsorb arsenic

Arsenic nano adsorbent
filters benefits
Compared to other search available
filters in market, this nano adsorbent
filter media is appropriate for the socio-
economic conditions of many countries.
•This filter has a very long lifespan of around five years.
•Throughout its lifetime, the absorbent doesn't need to
be renewed.
•The household filter is not powered by electricity.
•The household filter has a daily capacity of 80 to 100
litres.
•The price of the treated water per litre is less than that
of other available filters
[email protected]

The large surface
area of this
material
With this
technology the
people of world
can avail
arsenic free
water
This indigenous
filter for arsenic
removal is low
cost and easy to
handle
Arsenic nano adsorbent filters benefits
[email protected]

[email protected]
➢The best filter currently on the
market is seven times less
effective than the revolutionary
filter that nanotechnology
engineers at WATERMAN
ENGINEERS AUSTRALIA have
created, called catalytic nano
adsorbent composite filter.
➢This adsorbent has extraordinarily
high levels of metal oxide
nanoparticles that are capable of
adsorbing arsenic integrated inside
a robust composite polymer matrix

Because nano
adsorbent is so
effective, one
gramme of it has
40% more surface
area than the
typical available
filters in market
This catalytic nano
adsorbent filter has
a surface area like
that of carbon
nanotube materials
The large surface area of this material and the reaction kinetics strength that
distinguish it from all other arsenic removal techniques allow for the practically
total removal of arsenic from running water
[email protected]

The nano adsorbent filter media needs to be
backwashed periodically to remove particles trapped
in the media
This treatment nano adsorbent filter media system has
been able to consistently reduce arsenic levels to non-
detectable levels in the drinking water as well as pre-
treated water for wastewater treatment
17

The backwash water is
discharged to holding tank
to allow settling of solids.
After sufficient settling
has occurred
The supernatant is
recycled back through
the entire treatment
process
This method of residuals
handling is cost effective
and has worked well with
this media

This intellectual property belongs to
WATERMAN ENGINEERS AUSTRALIA
Cannot be used, reproduced without permission
[email protected]
watermanaustralia.comwatermanaustralia.com