PRODUCT INTRODUCTION >
Zero Liquid Discharge
Eliminating liquid discharge
from the waste water treatment
process is our target.
The
Chemistry
of Water
Reverse Osmosis (RO) has become
the technology of choice for largescale waste water reclamation.
RO systems recover a large portion
of the feed water that is processed,
with the residual brine stream typically
being recycled, stored separately, or
returned to the original water source.
However, as the residual brine stream
has much higher concentrations of
salts and other soluble and insoluble
material, it cannot be discharged
to the surrounding environment
and, therefore, presents a disposal
challenge and cost.
Although there are a number of
technologies that claim to compliment,
or indeed replace RO, when it comes
to achieving Zero Liquid Discharge
(ZLD) there are currently few proven
solutions for large-scale applications.
01
Enter
NuWater
NuWater provides water-cleaning
services to its customers with modular,
high-flux RO water treatment plants
incorporating proprietary large
diameter 16” RO technology.
The water recovery rates
from our RO waste water
treatment plants are already
higher than comparable
plants using conventional
RO technology.
However, the brine streams produced
do still present a challenge, as they
need to be either stored or mixed back
into the source feed water, thereby
further increasing the concentration
levels of the feed water.
NuWater recognises the potential for
effective ZLD solutions, as well as the
limitations of current technology. We
therefore take a pragmatic approach
to delivering workable solutions
today, while simultaneously investing
in research and development of new
technologies and business models
for the future. Deriving additional
value from waste water constituents,
and thereby reducing or offsetting
the costs associated with ZLD, is the
primary objective.
PRODUCT INTRODUCTION > Zero Liquid Discharge
Brine
Thermal
Concentration Evaporation
and Crystallisation
An obvious first step in attempting to
achieve ZLD is to increase the recovery
rate of pure water from the waste
water being treated.
NuWater plants, fitted with
brine concentrator modules,
are able to achieve recovery
rates in excess of 97%.
Alternative
Technologies
and Value
Propositions
NuWater utilises unconventional and
highly energy-efficient technology
for the recovery of the remaining
water from the concentrated brine
stream through evaporation and
crystallisation.
NuWater is working independently
and in partnership with other
technology providers to research
and develop solutions based on
technologies such as low temperature
crystallisation and ion exchange.
Once again, modules can be added
to address the required plant capacity.
In addition to researching and
developing this technology, we
are developing a complete value
proposition that will allow customers
to engage with NuWater as a single
provider of water-cleaning services,
including the recovery, disposal or
sale of by-products from the water
treatment process.
NuWater’s proven capabilities and
customer service in large-scale RO
water-cleaning, position us uniquely
to tackle Zero Liquid Discharge.
Challenge us to clean your water.
Tap Tomorrow
02
PRODUCT INTRODUCTION > Zero Liquid Discharge
Tap Tomorrow
SOUTH AFRICA
NuWater Campus, 87 Capricorn Drive, Capricorn Park, Muizenberg, 7945,
Cape Town, South Africa
TEL +27 21 531 0641 / EMAIL [email protected]
SINGAPORE
Innovation Centre, Block 2 Unit 245, 18 Nanyang Drive, NTU, Singapore 637723
TEL +65 6558 6080 / EMAIL [email protected]
UNITED KINGDOM
39 Elmfield Avenue, Teddington, Middlesex, TW11 8BU, United Kingdom
TEL +44 793 272 1052 / EMAIL [email protected]
WEBSITE
www.nuwaterglobal.com
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