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One aspect of the start up of black water treatment
systems on ships and ferries that is often overlooked
is the heart of the system - the biomass. In many cases
the biological commissioning of the plant must be completed
in a relatively short time frame due to construction or
other delays. In these circumstances it is important that
the establishment of a healthy, efficient biomass can
occur as quickly as possible.
The traditional approach to start up of on board treatment
systems is to use sludge imported from another plant.
However there are many drawbacks with this option including
health and safety, acclimation, composition, transportation
and cost. In many cases any problems which existed in
the imported biomass will be amplified in the new plant. |
Situations in which the use of the "4000MS"
are beneficial include :
| - Plant start up - Shock recovery
- Re-seeding - Maintenance of biomass |
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| The "4000MS" will quickly establish a biomass
that can degrade the organic components of marine sewage.
The "4000MS" uses only harmless, natural micro-organisms
that deal with the problem by degrading the organic matter
to CO and H2O in an highly effective and environmentally
acceptable way. |
What is the The "4000MS"?
"4000MS" consists of a carefully selected
blend of natural micro-organisms that have the ability
to efficiently degrade organic materials in black water.
The wide range of strains have been specially chosen for
their ability to produce the enzymes required to completely
degrade the organic matter. These strains grow at a fast
rate so that they can quickly establish dominance in the
biological population. The product contains strains that
have the ability to produce good floc structure which
will settle well and produce a clear final effluent. This
helps to produce a biological sludge that has good
settlement
and dewatering characteristics. In re-seeding of shock
recovery applications the strains in the product work
in harmony with the existing biomass and increase its
overall efficiency of that plant performance is restored
as quickly as possible. |
The type of systems in which the "4000MS" can be used include : |
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Black water treatment systems |
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Package treatment plants |
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Membrane bioreactors |
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Sewage holding tanks |
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The microbial strains are produced as single pure cultures,
harvested, stabilised on a cereal base and blended
together
to produce the final product. Extensive checks are conducted
throughout the process to ensure purity and quality of
the product.
Directions for use
The product as supplied is on a cereal base so it is
important that the bacteria are rehydrated before use.
This is achieved by adding the required quantity of product
to lukewarm(~30°C) water in a suitable container.
Apply 1 part product to 10 parts water, stir well and
allow to stand for 1 hour before application. Apply the
rehydrated product immediately prior to the aerated section
of the treatment plant e.g. into a drain, pump sump or
return sludge line.
Since each application is different and has different
characteristics it is important to assess the site before
deciding on a dosing programme. The technical Department
provides assistance in assessing the site and devising
a treatment programme.
Prduct safety
The micro-organisms in the "4000MS" have all
been isolated from natural environments. They have not
been genetically modified in any way. These microbial
strains have been classified as being harmless to humans,
animals and plants. The product is subjected to independent
testing to ensure that it is free of salmonella and other
contaminants. |
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