Dewatering and Waste Minimisation Technologies
MPCEE has been engaged by leading global manufacturers of dewatering,
drying and desalinisation technologies, along with other waste minimisation
processes, to spearhead their respective further interests in a global market.
The brief is to discuss with specific industries our principal’s proven
technology, where it can assist in the economical reduction of sludge and slurries,
where current technology is unable to do so. We consider the issues of
environmental protection and pollution control are as important as reducing
operating costs. It is also necessary to incorporate different technologies
into a regional energy and waste management plan, where it is beneficial to do
so.
To allow for the multitude of different industrial uses that
differing technologies can be used for, it is important that MPCEE
is aware of what you are looking for. Thereafter, it is possible to discuss in
detail which technology is best suited and the economics for building and
operating it. This is particularly relevant because of recent
changes/amendments to environmental legislation and regulation covering
contaminated land, waste management and IPPC regulations. MPCEE
will discuss with potential end users and others, the viable economical
possibilities for dealing with and disposing of sludge and slurries and other
waste streams from their operational environments.
It may well be that one type of technology may not be suitable
for the operational environment that it is intended for. However, in order that
MPCEE may present the right technology for these needs, an
extensive questionnaire is completed to identify, for example, quantities of
wet tonnes per annum to pass through the technology, the percentage solids
required, along with operating costs for current disposal etc.
As the ramification of introducing new technology will also
affect all operations, where there is a need to substantially reduce the
capital and operating costs associated with the disposal of the sludge and
slurries and other waste streams, a pre-feasibility study will be necessary in
this process of identification, based on the answers to the questionnaire.
The following will give an indication of part of the technology
used, which would be adapted to the particular processes required in the
Regional Energy and Waste Management Plan:
Examples of Technologies Used:
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TPS technology has a proven record of superior
performance in treating hydrocarbon-contaminated soils, sludge, sediments etc
with a very low water content. This is NOT a method of incineration |
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The RAS Dryer is capable of drying a wide range of
materials from solids and pastes to slurries with moisture content in the
high 90’s down to below 1% moisture – in one single rapid pass |
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PAD
is a high speed air jet, which facilitates the complete
economic drying of sludge and slurries etc for optimal commercial gain with a capital advantage of 5-1 and its energy cost advantage
of 15-1 |
The emphasis is to be able to draw upon the necessary expertise
and technological resources, in a worldwide sense, to cater for the pressing environmental
needs to protect sustainable development. In doing so, it is possible to turn
negative equity in to a profitable source. Using the available advanced
technology, mentioned here, it has been proven that extensive profits can be
made because of the increased reduction of capital and operating costs to turn
sludge, slurry, manures and other wet and dry waste streams into profitable end
bi-products.
The level of commitment required, on all sides, along with the
involvement of government at municipal, district, regional and national levels
are a prime requisite to enable the Regional Energy and Waste Management Plan
to succeed and, for those that make the investment, suitable financial returns.
Pulverised Air Dryer (PAD)
PAD facilitates the complete economic drying of sludges and slurries,
etc for optimal commercial gain. This creates a tangible ability to create a profit source, while
enjoying environmental protection and pollution control.
The key features include a high speed, air jet driven,
self-sandblasting of any solids material introduced into a reaction chamber with
no moving parts. Air jets control the speed and direction of the solid
material. The hopper fed material impacts at 800 mph (1300 kph) with material
coming from the opposite direction. The velocity gradient across the
cross-section of the rotating solid material is what starts the shearing and
drying process. The air cushion created by this high-speed air jet also creates
a buffer between the rotating material and the chamber wall. There is no
contact with the chamber walls and hence minimum abrasion. The ability to
adjust the air jet speed and direction makes for a wide adjustment capability
of the process. This allows for the moisture content to be adjusted to whatever
amount is needed. Moisture can be taken down to as low as 3%. The type of
solids is immaterial.
The company will pursue any and all other such avenues where its
capital advantage of 5-1 and its energy cost advantage of 15-1 can make sense
to the joint venture.
For further information on PAD
click HERE ………………………….. (back
to Examples of Technologies Used)
The Rapid
Air/Swept (RAS) Dryer
This long established company has gained a reputation for the
supply of high standard process equipment. They are specialists in the field of
innovative process technology, involved with Govt. Departments to identify and
solve process challenges within a range of industries.
The RAS Dryer is capable of drying a wide range of materials from solids
and pastes to slurries with moisture content in the high 90’s down to below 1%
moisture – in one single rapid pass! In addition because the dwell time within
the dryer is well under one minute, material degradation is minimal with very
low dry material exit temperatures. The dryer can mix and grind/de-lump at the
same time and is designed and built for many years of continuous operation. The
air heater system can employ a range of fuels, plus reclaimed waste dry heat
and accommodates different mounting options.
The Air Fluidised Trough
(AFT) Dryer
The AFT
Dryer is capable of drying a wide range of friable, granular, flaked or other
‘formed’ material on the fluid bed principle, but without the low energy
efficiency, high air volumes and hygiene problems associated with conventional
flat deck fluid bed and band dryers. In principle the AFT Dryer is an agitated
fluid bed dryer, however because of a unique U-shaped drying chamber, together
with a specially designed rotor, it ensures that product degradation is minimal
and an innovative ‘nose’ screen ensures that the hot air is evenly distributed
without the risk of screen blockage. The result is super-efficient fluid bed
drying with low airflow, high-energy efficiency, and variable drying
temperature zones if required and total control over the drying process.
Innovative Process Equipment
Other equipment to meet many specific
requirements, including:
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• Cylindrical Air Swept Dryers and Coolers |
• Air Swept Fine Grinders |
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• U-Trough Fluid Bed Dryers |
• Hammermill Grinders |
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•
Waste
Recycling Equipment for separating and reclaiming products from packaging |
• Batch and Continuous Mixers •
Acoustic
Cleaners |
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•
Research
and Test Facilities |
Thermal Phase Separation (TPS) Technology
This global operator, with its roots in the oil drilling
industry has developed different technologies to deal with the real threat to
the marine and land-based environments from oil field activities producing huge
volumes of liquefied solids. Therefore their solids control and waste
management solutions have, overtime, evolved and been adapted for use in other
industries.
TPS is not a dewatering system to be classified in the
conventional meaning of dewatering sludge and slurries etc, as its efficiency
and cost effectiveness depends on a feedstock of less than 12% oil and very
small water contents. The recovery of water from water based slurries is
undertaken by chemical enhanced centrifuging as a separate process altogether.
This advanced thermal remediation
process technology is highly efficient for reclaiming and minimising waste and
preparing solids for disposal. TPS technology has a proven record of superior
performance in treating hydrocarbon-contaminated soils, sludge, sediments etc.
This is NOT a method of incineration. It is a two-stage phase separation
process based on the principle of indirectly heated thermal desorption. TPS
processing removes 99% of hydrocarbons from the feedstock, with less than 2%
solids in the recovered fluid. TPS technology is proven, commercially viable
and suitable for use in most locations around the globe. The Govt. of Canada’s
Environmental Technology Verification Programme has certified it. It has also
been rigorously tested by Environment Canada’s Demonstration and Evaluation of
Site Remediation Technology (DESRT) Programme, which is similar to the US EPA
S.I.T.E programme for evaluation of site technologies.
Solids Control Equipment
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Waste Treatment Systems
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Primary
Shakers |
Recovery
Systems |
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Linear
Motion Shakers |
Thermal
Processing Systems |
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Hydroclones |
Flocculation
Systems |
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Mud
Cleaners Centrifuges |
Stabilisation |
Dewatering Technologies Solids Control
Training and Evaluation
This group has the facilities and expertise to adapt any
technology to meet your specific requirements. The evaluation and feasibility
of meeting your needs, while reducing your capital and operating costs is their
prime consideration. Their research and development background will be of great
advantage to your operation, in this climate of increasing environmental
legislation for environmental protection and pollution control.
(back
to Examples of Technologies Used)
Conclusion
By bringing together
and using different technologies, it is not possible to use one particular plan
for one location and set of circumstances and then take it to another location
and expect the same favourable and beneficial results, should the environmental
circumstances not be the same. Therefore, we endeavour to bring to your
attention the expertise, technology and resources that are required and will be
involved to cater for any project that a client intends to fulfil. We can then
show that it not only caters for the exact environmental protection and
pollution control requirements that the international community as a whole
expects, but will go on to show also that it is possible to achieve sustainable
development and, in the course of it, make profits in doing so.
Private sector
initiatives that bring together global operators, to achieve the required end
results, necessitate financial, professional and commercial risks to be taken,
but these risks must be based on taking informed decisions. MPCEE has obtained,
through its professional approach to such operations, a level of credibility
second to none. MPCEE, therefore, offers potential users of the Plan its full
service of skills, expertise and commercialism in order to ensure that a
municipal waste project is both a commercial and operational success.
For more information or to discuss your application of any of these
technologies, please click Contact Us and complete the enquiry form.
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