Water Ozone mixing

November 25, 2010 2 comments

SS ozone/water blender

High Performance Ozone/Water  SS  blender

How it works

The turbulent flow produce negative pressure and absorb the ozone into the blender, special designed internal  structure make the sinuous flow swirling and striking in the tube, our experience proved that the solubility is double than Venturi tube when mixing ozone and water.

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The pressure at "1" is higher than at "2" because the fluid speed at "1" is lower than at "2".Venturi effect is the reduction in fluid pressure

The Venturi effect is the reduction in fluid pressure that results when a fluid flows through a constricted section of pipe. The Venturi effect is named after Giovanni Battista Venturi (1746–1822), an Italian physicist.

SWRO Energy Recovery

November 22, 2010 Leave a comment

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Energy recovery device is an energy exchanger, which transfer the pressure of  waste water/drain water to feeding water, efficiency rate can be up to 89% to 96%. This technology made the RO desalination as the lowest energy consumption solution, comparing with ED, MED, MFS.

Detailed working process, please see this

 

 

 

 

 

 

 

 

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Tiny bubbles clean oil from water

November 12, 2010 Leave a comment

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Tiny bubbles clean oil from water

Microbubbles in a chemical reactor like the one shown here are crucial to a new method for cleaning up oil sheen and other pollutants released into water from oil drilling, refineries, mining of tar sands and oil, leaking underground gasoline tanks and other sources. Civil and environmental engineering Professor Andy Hong developed the method, which puts a new twist on two conventional techniques: bubbling ozone gas through polluted water and then filtering the water through sand. Hong’s method uses repeated cycles of pressurizing and depressurizing ozone to create microscopic bubbles that are much more effective than larger bubbles at converting and removing oil. Credit: College of Engineering, University of Utah.

Small amounts of oil leave a fluorescent sheen on polluted water. Oil sheen is hard to remove, even when the water is aerated with ozone or filtered through sand. Now, a University of Utah engineer has developed an inexpensive new method to remove oil sheen by repeatedly pressurizing and depressurizing ozone gas, creating microscopic bubbles that attack the oil so it can be removed by sand filters.

“We are not trying to treat the entire hydrocarbon [oil] content in the water – to turn it into carbon dioxide and water – but we are converting it into a form that can be retained by sand filtration, which is a conventional and economical process,” says Andy Hong, a professor of civil and environmental engineering.

In laboratory experiments reported online this week in the journal Chemosphere, Hong demonstrated that “pressure-assisted ozonation and sand filtration” effectively removes oil droplets dispersed in water, indicating it could be used to prevent oil sheen from wastewater discharged into coastal waters.

Hong says the method – for which patents are pending – also could be used to clean a variety of pollutants in water and even soil, including:

  • So-called “produced water” from oil and gas drilling sites on land. Such oily water normally is re-injected underground. “If we have technology to clean it, it could be put into beneficial uses, such as irrigation, especially in arid regions where oil and gas tend to be produced,” says Hong.
  • Water from mining of tar sands and oil shale.
  • Groundwater contaminated by MTBE, a gasoline additive that reduces harmful vehicle emissions but pollutes water due to leaking underground gasoline storage tanks.
  • “Emerging contaminants,” such as wastewater polluted with medications and personal care products.
  • Soil contaminated with polychlorinated biphenyls (PCBs, from electrical transformers) or polycyclic aromatic hydrocarbons (PAHs, from fuel burning). Water and contaminated soil would be mixed into slurry, and then treated with the new method.
  • Heavy metals in soil. Instead of ozone, air and metal-grabbing chelating agents would be pressurized with a slurry of the contaminated material.
  • Refinery wastewater and oil spills at refineries or on waterways. The spill could be vacuumed, and then treated with the new method on-site or on a barge.

Hong conducted the study with two University of Utah doctoral students – Zhixiong Cha, who has earned his Ph.D., and Chia-Jung Cheng – and with Cheng-Fang Lin, an environmental engineering professor at National Taiwan University.

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Ozone aeration remove unpleasant smell and oil scaling

October 20, 2010 Leave a comment

Ozone combined with micro bubble diffusion allows for extremely high mass transfer of the gas to wastewater.  This means creating a supersaturate solution of ozone with little to no off gassing in a very stable state. Supersaturated ozone solutions allow reactions with unsaturated hydrocarbons to happen faster, but also push reactions that typically would not happen in less concentrated solutions. BOD, COD, TSS and bacteria are now easily eliminated very efficiently and economically, as a result there is no primary or secondary sludge formation, and also remove or reduce unpleasant smell efficiently.

Application:  Grease Trap of Restaurant, food processing plant, …etc

 

Ozone for Poultry Farming

October 14, 2010 Leave a comment

Ozone in Air

Ozone can be used to destroy airborne bacteria and eliminate odours. Ozone kills micro-organisms by a process of oxidation. Gaseous Ozone can reduce the ammonia concentrations in animal sheds. There are two methods that can be used to treat poultry sheds. When sheds are empty of birds and the litter cleared, high concentrations of ozone can be used to sanitise the building. Then using low level concentrations of ozone during the growth cycle will improve animal hygiene by reducing odorous compounds present in the growing shed.

Ozone in water

Highly ozonated water is of enormous benefit in the slaughterhouse for bacteria control of dead animals and the environment. When chilled ozonated water is sprayed onto chicken meat it will kill pathogens on the surface reducing the potential for spoilage. Slaughterhouse and equipment can also be washed with highly ozonated water acting to disinfect the working area reducing the potential for dangerous bacteria outbreak.

Seawater desalination system

October 6, 2010 Leave a comment

We provide desalination systems are energy efficient, produce high quality, tasty, healthful drinking water from available sea water, and offer reliable operation, low maintenance and low operating costs. Forward Aqua offers standard salt water desalting systems which we gladly customize for you and custom desalinators designed especially for your application. Seawater desalination The compacted seawater desalination system for small capacity 1000-3000L/H.

  1. FRP tank prefilter with automatic control valves
  2. Milton Roy chemical dosing system for Germicide, floccucant and anti-scale inhibitor .
  3. Germany high pressure pump,SS316 high pressure piping
  4. Dow Filmtec RO membrane unit with high quality FRP high pressure vessel
  5. Schneider PLC control,ORP meter,flow meter, EC meter etc.

Applications: * Cities & Villages * Island Communities * Offshore Platforms * Remote Work Sites * Seaside Villas * Oceanside Developments * Beach

Seawater desalination system

  1. Compact and space-save design, easy to install on the boat or small space.
  2. Easy to operate, the multimedia filter use one valve for multi-port control which realizing the flushing , back washing.
  3. Special design which make you don’t need to stop machine to exchange filter cartridges.
  4. Long service life, working stable and less maintenance

Applications: * Cities & Villages * Island Communities * Offshore Platforms * Cruise Ships * Cargo Ships * Remote Work Sites * Seaside Villas * Fishing Boats * Processing Ships * Oceanside Developments * Work & Supply Boats * Beach

Ionized water, Ozonated water and Alkaline water

September 29, 2010 Leave a comment

Ionized (higher pH) water is supposed to offer health benefits, but there is little factual evidence to back up this claim. Ozonated water has ozone diffused into it, which acts as a disinfectant, but it is unstable and has a short effective duration.

What Does a Water Ionizer Do?

Passing electrical current through pure water (pH=7), an ionizer generates alkaline (pH above 7) and acidic (pH below 7) water. The alkaline water is dispensed for drinking purposes.

Why Alkaline Water?

Proponents claim alkaline water corrects the body’s pH balance. Since digestion already turns fluids slightly alkaline before they reach the intestines, there is little value to alkaline water.

Instability of Ozonated Water

Since ozone has a half-life of less than 30 minutes, any bottled ozonated water on the shelf will have no ozone left in it. Only an on-site ozone generator will give most people contact with real ozonated water.

Uses of Ozonated Water

Ozone is used for water disinfection in many treatment plants around the world. It oxidizes any organic materials (including disease-carrying organisms) better than oxygen will by itself. So, ozonated water is useful for disinfection (as well as for precipitating many dissolved minerals out of the water) and has a slightly higher level of dissolved oxygen in the water than non-ozonated water does.

Conclusion

Ozonated water offers extra disinfection if your water may be contaminated. For normal water supplies, this precaution is an unnecessary expense, but otherwise it is harmless. Ionized water has a higher pH than pure water. The same effect can be achieved at much less cost with a few gains of baking soda added to your water.

Hello world!

September 29, 2010 1 comment

Welcome to WordPress.com. This is your first post. Edit or delete it and start blogging!

Categories: Uncategorized

Swimming pool treatment process

September 20, 2010 Leave a comment
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Ozonation



Ozonation is written into the German DIN (
German Institute for Standardization)standard specifications for public swimming pools.


However ozone works in a similar manner to UVc in as much that the
process oxidises and chops up organic molecules into smaller components.
However it is also a DIN standard requirement to use activated carbon
after Ozonation which eliminates the THM problem. However the activated
carbon absorbs the free chlorine and will increase the chemical demand
by the pool,typically the chlorine requirement will increase by 500%. In
addition to removing chlorine, activated carbon also absorbs organics,
which makes it a perfect environment for the incubation of bacteria and
the production of trichloramine gas.




In Germany and in any swimming pool system using ozone and activated
carbon there will be a high level of trichloramine in the atmosphere.
This is demonstrated by the excessive corrosion of the ventilation
systems and stainless steel metal work, the structural steel for the
building may also be affected. Every year there are at least one or more
cases of swimming pool roof failure in Europe caused by trichloramines.
At low levels trichloramine will predispose your lungs to infection, or
in the case of children it may sensitise the lung tissue to an allergic
reaction which may in turn lead to asthma when the child becomes a
teenager. It is unlikely that we will ever quantify the damage caused by
trichloramine on public health, in the same manner that it has taken
decades to appreciate the dangers from smoking and


asbestos.

However we should not advocate a technology that actually
promotes the production of a toxic gas. Ozonation systems are being
promoted in many European countries, and they are written into the
German DIN standards, however it is a technology that is actively
causing damage to the lungs of the public visiting swimming pools.

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Seawater desalination

September 16, 2010 Leave a comment
Seawater desalination

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The fresh water supply is becoming an very important problem for many area, someone even forecast that it will be next strategical resource after the oil.

As an additional water supply solution, seawater desalination have been increasing very quickly in last 20 years, and the the desalination cost is low enough for scale use due to technology development.

Reverse Osmosis desalination
Water from a pressurized saline solution
is separated from the dissolved salts by flowing through a
water-permeable membrane. The permeate (the liquid flowing through the
membrane) is encouraged to flow through the membrane by the pressure
differential created between the pressurized feedwater and the product
water, which is at near-atmospheric pressure. The remaining feedwater
continues through the pressurized side of the reactor as brine. No
heating or phase change takes place. The major energy requirement is for
the initial pressurization of the feedwater. For brackish water
desalination the operating pressures range from 250 to 400 psi, and for
seawater desalination from 800 to 1 000 psi.

Advantages

·
The processing system is simple; the only complicating factor is
finding or producing a clean supply of feedwater to minimize the need
for frequent cleaning of the membrane.

·
Systems may be assembled from prepackaged modules to produce a supply of
product water ranging from a few liters per day to 750 000 l/day for
brackish water, and to 400 000 l/day for seawater; the modular system
allows for high mobility, making RO plants ideal for emergency water
supply use.

· Installation costs are low.

· RO plants have a very high space/production capacity ratio, ranging from 25 000 to 60 000 l/day/m2.

· Low maintenance, nonmetallic materials are used in construction.

· Energy use to process brackish water ranges from 1 to 3 kWh per 1 0001 of product water.

· RO technologies can make use of use an almost unlimited and reliable water source, the sea.

· RO technologies can be used to remove organic and inorganic contaminants.

· Aside from the need to dispose of the brine, RO has a negligible environmental impact.

· The technology makes minimal use of chemicals.

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