Entry for December 29, 2008

Spartan Environmental Technologies occassionally notes the work of other companies in the ozone water treatment field.  Recently, Seair reported some work in this field.

The Seair activities corresponds to work by other companies, including Spartan on oil field water treatment.  Produced water is the water used in the extraction of oil from the ground.  In some cases this water must be treated prior to discharge.  Where their are limits on inorganic or organic contaminants, ozone water treatment has been shown to reduce the level of these compounds. 

Fac water is used to fracture the geologic formations that hold water. Similarly, if this water needs to be discharged, it may need treatment to remove contaminants.

While these activities might be slowing down with the lower price of oil today, eventually a combination of higher demand for oil and greater limitations in the discharge of water used to extract oil will create a demand for new water treatment applications including the use of ozone water treatment.


Entry for December 19, 2008

An important application for ozone is pulp bleaching.  Chlorine is a major pulp bleaching agent, but its application is declining as other bleaching agents take its place such as chlorine dioxide and ozone. 

Even in developing countries, efforts are being made to move toward alternatives such as ozone.  The Indian company lTC recently launched an environment friendly paper which has been crafted by ITC using a pioneering technology, which is first of its kind in India called “Ozone Treated Elemental Chlorine Free technology”.

Conventionally, elemental Chlorine was used in the bleaching process during paper manufacture. The byproducts of this process include large number of organo-chlorine chemicals, which are toxic and adversely impact the environment.  Chlorine dioxide was the second generation technology for preventing the emissions of toxic compounds.  Ozone bleaching virtually eliminates the production of byproducts with better results than chlorine dioxide bleaching.

The growing success of ozone in the pulp and paper industry is just another indication of the versatility of ozone and ozone generators.


Entry for December 18, 2008

Ozone has many different applications.  In this post we will discuss the use of ozone in commercial laundries.  Two important advantages of ozone in a commercial laundry are effectively cleaning in cold water while also providing powerful disinfecting capability.

The Beverly Hills 5 Star Hotel, L’Ermitage, has recently signed an agreement to install a Eco-Safe Ozone Natural-Clean Laundry System. L’Ermitage is one of a chain of 90 top-rated hotels throughout the world.

Michael Elliot, President of Eco-Safe Systems USA, Inc., said, “L’Ermitage was convinced by all the benefits they saw in our Natural-Clean Laundry System. This system saves them energy, detergent costs, labor and equipment costs, as well as greatly extending the life of their linens. The Natural-Clean system provides a long list of economic benefits as well as allowing their laundry system to go green. They also realized the economic and health safety advantages of installing an Ozone Disinfection System in their restaurant.”

Other applications of ozone in commercial laundries have taken place in prisons and hospitals with a number of suppliers providing equipment.  Interest by various laundry operators and suppliers of commercial laundry continue to expand.  While Spartan does not currently participate in this segment of the market, we are also interested in new applications for this potent and environmentally friendly compound.


Entry for December 17, 2008

The market research firm Global Water Intelligence has announced the publication of Water Market USA, a study of the US water treatment market.  The study indicates that long-term growth in spending for water and wastewater infrastructure in the United States is “guaranteed,” although spending during 2009 will be reduced.

The largest area of long-term US water infrastructure spending in dollars will be in the expansion of sewer lines while the fastest-growing market will be seawater desalination.

Other fast growing water technology markets from 2009 through 2016 will be ultrafiltration and microfiltration membranes, followed by ultraviolet disinfection, ozone disinfection, membrane bioreactors (RO), and reverse osmosis membrane systems.

Spartan Environmental Technologies supplies technologies for both ozone disinfection and UV disinfection.


Entry for December 16, 2008

Air Products recently announced that HiPOx technology, an ozone-based advanced oxidation process (AOP) water treatment technology, has been granted conditional acceptance by the California Department of Public Health for unrestricted water reuse under Title 22 of the California Code of Regulations. HiPOx injects and mixes ozone with hydrogen peroxide to maximize the production of hydroxyl free radicals. Hydroxyl free radicals are the most powerful oxidant available for water treatment to destroy pathogens and difficult to treat organic contaminants including 1,4-dioxane, chlorinated solvents, petroleum hydrocarbons, and endocrine disrupting chemicals (EDC). 

Ozone and ozone-based AOP, like HiPOx, have been shown to provide superior results over conventional ultra violet and chlorine-based disinfection technologies.  Spartan Environmental Technologies offers a variety of conventional and proprietary advanced oxidation processes.  The approval of this first AOP for water use processes in California show that these technologies will have a much wider range of use than they have today.  Currently such AOP are primarily used for ground water remediation and industrial water and wastewater treatment.


Entry for December 15, 2008

Air Products and ITT WEDECO have recently disclosed a process for recovery unused oxygen from ozone generator gas.  This is important since oxygen is a major cost factor for producing ozone and the conversion efficiency from oxygen to ozone is only 6-15%.  Therefore, in most oxygen fed ozone systems, the vast majority of oxygen is wasted.  The process shown in the schematic claims to recover about 70% of the oxygen.  The basic process involves adsorbing ozone on a bed of molecular sieves and then stripping the ozone into a dry air stream.  The air ozone stream is used for water treatment and the oxygen is recylced or recovered for reuse at the generator.  A more detailed discussion is provided at our web page on ozone oxygen recovery.