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Technical specifications
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Prices |
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Phosphate control,
bacteria and algae control, flocculation & Bio-catalyst |
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Public Aquaria |
| Aquatic Displays
For zoos,
aquatic exhibits and aquariums, NoPhos should be dosed into the water at
a low level over several weeks until the phosphate has been reduced.
Dissolve 1 kg of NoPhos in 20 liters of water and pump into the system
prior to the sand or AFM filters over a minimum of 1 week, or until the
phosphate levels have been reduce to less than 0.1 mg/l as PO4-P |
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Swimming pools |
| Swimming Pools.
NoPhos can be added directly
to the pool once the public have left for the evening, or it may be
dissolved in water and dosed in front of the AFM or sand filters.
NoPhos will react with phosphates in the water to form an insoluble
precipitate that will be removed by the filters. Bacteria and algae require
phosphate as a micro nutrient, if you remove phosphate you effectively stop
the growth of bacteria and algae. NoPhos reduces chlorine demand and
combined chlorine by approximately 60%, system hygiene is improved and
bacteria load on the system decreases. NoPhos will work with sand filters,
but for best results use AFM filter media. |
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Wastewater treatment |
| Wastewater treatment
NoPhos is
added to waste water prior to AFM filtration to reduce or virtually
eliminate the discharge of phosphate from wastewater treatment systems.
When used in conjunction with AFM filter media it acts as a surface
catalyst and accelerates the oxidation and cracking of organics as well
as helping to disinfect the water. NoPhos is dosed at a ratio of 10:1
e.g., if there is 0.5mg/l of PO4-P, you need 10 x 0.5 = 5mg/l of NoPhos. |
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Aquaculture industry
remove
phosphate, reduces suspended solids, reduce ammonium production
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| Aquaculture
effluent can have high levels of phosphate or levels above the consent to
discharge. 1 gram of NoPhos will reduce the level of PO4-P by 0.1mg/l in 1
cubic meter of water as phosphorous. To use the product simply
dissolve 1 or more kg of NoPhos into clean freshwater and then dose in to
you discharge water at a rate that will reduce the phosphate level to
a point in compliance with your discharge consent. There may be only a
requirement to add the product at certain times of the day. The NoPhos
should be dosed up-stream of your sedimentation tanks and filters. The
NoPhos will form an insoluble precipitate of phosphate, which is inert.
In addition to reducing the phosphate levels NoPhos will cause flocculation
of small particles in the water which will greatly improve the performance
of your sedimentation tanks and filters. Dryden Aqua can also provide
you with the dosing pumps and storage tanks. |
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Activated sludge
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Activated sludge system.
NoPhos is used to stabilise bacteria
floc, the catalytic action of NoPhos also helps to slightly
increase the redox potential which benefits aerobic bacteria. NoPhos
can greatly improve the performance off all types of activated sludge
system. The quantity of product required relates to the biomass of
bacteria in the system. As a guide the amount of NoPhos required
equates with 1% of the bacteria cell biomass. The NoPhos should be
added to the system over a period of 2 weeks. |
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Lakes & ponds |
| Ponds.
Measure the phosphate level as PO4-P, (e.g.
0.5mg/l), estimate total volume of water (e.g. 1000 m3) determine weight of
phosphate (0.5 x 1000 = 500 grams). You will need 500 x 10 grams of NoPhos =
5kg. Add the NoPhos over a period of at least 4 weeks, by dissolving in
water and using a watering can or dosing pump add a small quantity every
day or every few days over the surface of the pond. Thereafter you should
use a maintenance dose of approximately 10% = 0.5 kg per week.
Important Note..... in some cases the phosphate level will be zero,
this is because the algae have used all of the available phosphorous. In
these situations you need to make an estimate as to the level of
phosphate, and 0.5mg/l is a reasonable estimate. The lake or pond is
then dosed on the basis that the free phosphate level is 0.5mg/l It is
important to monitor the phosphate level on a regular basis to make sure
that the phosphate level is kept under control because as the algae start to
starve and die, it will release phosphate. The NoPhos will
prevent the phosphate being made available to the algae, so after a
period of a few weeks the algae will gradually disappear. |
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Aquatic Displays, with no fish or aquatic life |
| NoPhos has a lower
toxicity threshold than common salt ( Sodium Chloride), but too high a level
can still be harmful to freshwater aquatic life. However if the pond
is ornamental, or part of an aquatic display in which there is no aquatic
life, you can use a high dose of NoPhos. For example the pond my be
dosed at the beginning of the year to last the whole year, this makes for
very easy maintenance of the system. In these systems the dose level
is still a function of the phosphate concentration, however as a guide you
can add around 10g of NoPhos per 1 cubic metre of water in the system.
NoPhos will prevent the growth of algae, it
will also slow down or prevent the growth of bacteria. The product
even works in seawater at water temperature in excess of 36 degrees
centigrade. NoPhos removes the nutrients required by algae and bacteria to
prevent their growth as opposed to being toxic to the organisms. This
makes NoPhos perfect for aquatic displays.
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NoPhos in Drinking Water |
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We are in progress with the certification of NoPhos for use in Drinking
Water systems in the UK. NoPhos has a lower toxic threshold than Aluminium
based flocculents such as PAC, however it is a much better flocculent.
NoPhos has been designed to remove phosphates but the product will also
efficiently remove Arsenic from drinking water (
click here for arsenic
removal). |
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The contents of this page & process described are covered by IPR (patent) |
