Category Archives: Cooling Water

District cooling in Chicago, Illinois

District Cooling in Chicago Eliminates Hazardous Chemicals Transportation, Storage and Handling

World’s largest district cooling center in Chicago, Illinois improves operations and eliminates hazardous delivered chemicals with new disinfection system using MIOX electrochemical generation. Continue reading

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Industrial water treatment and cooling tower biocide at ammonia plant

Cooling Tower Water Treatment at Top Ammonia Producer in Oklahoma

A top ammonia producer in the United States is successfully keeping their industrial cooling  tower water free of biological contaminants through effective biofilm and algae removal.

The facility is taking safety measures by eliminating the use and storage of hazardous chemicals at their facility by using industrial water treatment system with MIOX on-site hypochlorite generator.

Results from three successful installations at different sites throughout North America show MIOX is the preferred cooling water treatment chemical for biological control, optimal facility safety, and corporate sustainability.

cooling tower water treatment companies

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Cooling Tower Water Treatment at Leading Consumer Goods Manufacture in France

The substitution of conventional biocide treatments with MIOX Mixed Oxidant Solution (MOS) chemical generator has resulted in a biocidal cooling tower water treatment process that costs less and is more effective than isothiazoline and bromine biocides.  The positive results were documented from an installation at a leading consumer goods manufacturer in France.

cooling tower water treatment system

Cooling tower water treatment system

The installation of MIOX Mixed Oxidant Solution (MOS) has been shown to be as effective as utilizing isothiazoline compounds and organic biocides while significantly reducing operation costs.  Water analysis and a real-time ATP (adenosine triphosphate) test showed positive impact to the cooling water when the biocical treatment was changed to MIOX Mixed Oxidant Solution (MOS).  Also the facility observed low ATP rates with a decreasing trend since the installation of the RIO Zuni systems.


MIOX technology helped the facility meet its objectives of:

1)      Microbiological Control: The new treatment process utilizing MOS is as effective as the previous treatment process (isothiazoline & bromine) at controlling bacterial growth.

2)      Safety & Simplicity: On-site chemical generation eliminated the manipulation of up to 5,500 lb/year biocidal products from filling meters and/or manual injection.  Furthermore, the facility was able to completely eliminate the transportation, storage and handling of delivered chemicals and their containers.

3)      Economic Benefits: Lower operating costs from removing the purchase of delivered biocidal products and switching to on-site generation which utilizes only salt, water and electricity.


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Legionella Prevention at Large Hospital in Indiana, USA

Waterborne illness from microbial growth in building water distribution systems is a real threat to water safety and communities. MIOX’s patented Mixed Oxidant Solution (MOS) chemistry for secondary disinfection can help eradicate biofilm that can harbor Legionella and other microorganisms without the use of Chlorine Dioxide. MIOX Mixed Oxidant Solution and sodium hypochlorite generators improve workplace safety by eliminating the handling and storage of hazardous chemicals while maintaining steady disinfection residuals.

On-site generated Mixed Oxidant Solution (MOS) using salt, water, and electricity provide one of the best options available for control of Legionella, ultimately resulting improved safety and elimination of biological hazards. Legionnaires’ disease (LD), the more severe form of legionellosis, is characterized as a type of pneumonia. Legionellosis is caused when Legionella pneumophila or other Legionella species are introduced to a host as an aerosol, such as from the spray from a shower. The infection can be fatal. Easy to kill in its free-floating form, Legionella can harbor in biofilms, which then slough off and can aerosolize in faucets and shower heads.  By controlling biofilm, Legionella can be effectively controlled.  Mixed Oxidants offers the most effective, safest and lowest cost option for the control of biofilm.  Mixed Oxidants also meet ASHRAE standards for secondary disinfection of institutional piping.

The chart below shows the results of MOS at pH 8.5 against Legionella.  MOS provided better disinfection (>5.5 log inactivation) compared to the other biocides and validated field data whereby bromine chemistry and non-oxidizing biocides are easily replaced with MOS chemistry.  Hypochlorite (bleach only achieved a 4 log inactivation and bromine showed 4 log initially and then decreased in efficacy over time.

Legionella control in Cooling Tower Water

Legionella control in Cooling Tower Water


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Wastewater Reuse Treatment for Industrial Water Reuse at Hawaii WWTP

The Honouliuli Wastewater Treatment Plant (WWTP), located in Oahu, Hawaii, now utilizes four MIOX Vault H100 Self-Cleaning systems for wastewater reuse treatment.  The project was collaborated with MIOX exclusive partner, Parkson.  The 26 million gallons/day facility relies on MaximOS and other technologies to facilitate irrigation by the municipal government and supply process water for a power plants and oil refinery water.

The City and County of Honolulu owns and operates the Honouliuli WWTP, which is the regional wastewater treatment facility for the ‘Ewa district. The plant is located east of the former Naval Air Station Barbers Point and processes approximately 26 million gallons per day (mgd).


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MIOX Exhibits at IDEA Conference for Cooling Tower Water Treatment

MIOX will be exhibiting at the 104th Annual International District Energy Association (IDEA) Conference & Trade Show from June 2-5, 2013 in Miami, FL showcasing on-site Mixed Oxidant Solution (MOS) and sodium hypochlorite generators for cooling tower water treatment.  Attending the conference will be MIOX’s Brett Julian at Booth #55.  Visit the MIOX booth to learn more about MIOX water treatment technology for water disinfection.

About the IDEA Conference & Trade Show

Entitled “Building on Efficiency, Delivering Value,” this conference will feature highly efficient and clean district energy technologies deployed on an urban scale to deliver robust and reliable energy services. The program offers panel discussions, technical presentations and ample Q&A discussion on a range of timely topics such as district cooling, thermal storage, combined heat & power, LEED, microgrids and many others.

For more information about IDEA and the conference, visit

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MIOX Vault 45 lbs/day Mixed Oxidant Solution

Meeting Increased Demand for Chilled Water in Downtown Chicago

In collaboration with Fehr Solutions, Chicago based company Thermal Chicago recently upgraded their cooling tower treatment process to include a larger MIOX Mixed Oxidant Solution chemical generator.  Previously, Thermal Chicago had utilized a MIOX Dual SAL 80 system (20 lbs/day FAC) at one of their cooling facilities.  To meet the increased demand for chilled water, they have purchased a new state-of-the-art MOX Vault M45 system (45 lbs/day FAC).  

Thermal Chicago Corporation owns and operates the world’s largest interconnected district cooling system, currently serving about 100 buildings in downtown Chicago.  As a result of proven reliability and long standing track record since 1995, customers in Chicago continue to turn to Thermal Chicago district cooling service for their chilled water needs for air-conditioning in condominiums, commercial and industrial facilities.MIOX Vault 45 lbs/day Mixed Oxidant Solution

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General Motors (GM) Raising Technology Standards with MIOX for Cooling Loop Disinfection

General Motors (GM) engine manufacturing plant in Toluca, Mexico was looking for environmentally friendly technologies that promote economic growth while raising technology standards. Through MIOX Mexico distributor Medición y Control para Aguas de América (MECOPAA), FATA Automation and Aluminum procured 5 RIO Zunis for General Motors.  Each of the MIOX Mixed Oxidant Solution chemistry generators will be used for cooling tower water treatment at the plant.  The installation of the MIOX equipment is part of GM’s investment in the Toluca motor plant to build small, fuel-efficient engines for the NAFTA and Latin American automotive market.

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Press Release: MIOX Presents at Cooling Tower Institute (CTI) Conference

Read the full press release here on the MIOX website.

Increasing Power Plant Output Using a New Methodology for Cooling Loop Maintenance

Tom Muilenberg, MIOX Director of Commercial Operations and Cem Candir, MIOX VP of Sales & Marketing will present the technical paper “How Stripping Biofilm from the Cooling Water Loop Impacts Power Plant Production Output” at the Cooling Tower Institute (CTI) Conference in Corpus Christi, TX on Monday, February 4, 2013.

MIOX presents a cost effective and CTI Conferenceenvironmentally friendly methodology to biofilm control within the cooling water loop. This proven approach utilizes MIOX patented technology and Mixed Oxidant Solution (MOS) chemistry for improved heat exchange efficiency, resulting in a significant increase in power plant production output.

“The switch to MOS chemistry from bulk hypochlorite allowed one of our power plant customers to condense return steam more efficiently. Besides achieving operational cost less than the bulk hypochlorite, the power plant added $30 million worth of power annually in to the grid.” noted Mr. Candir.


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EUEC panel participation, “Energy Efficiency & Management”

On Tuesday, January 29, 2013 Tom Muilenberg, Director of Commercial Operations will participate in the panel “Energy Efficiency & Management” at the Energy, Utility & Environment Conference (EUEC) in Phoenix, AZ. 

Tom will present the Puerto Rico Power Authority (PREPA) Palo Seco Power Plant case study where efficiencies gained through biofilm eradication and cuts in chemical cost ultimately increase a power plant’s production load by 7%, yielding almost $34 million in overall savings in one year. 

PREPAThe Palo Seco project was recognized during the 2012 Environmental Congress, sponsored by the Puerto Rico Manufacturers Association. With numerous high tech industry competitors, PREPA and NTS won not only Innovative Project of the Year but recognition in two other categories: Water Conservation and Energy Conservation. Based on these results, Vives said his company is now treating 14 cooling towers units for PREPA with more to come.