21Making Bleach Makes Sense

MicrOclor On-Site Hypochlorite Generation (OSHG) is truly the Safe, Sound, Clean & Green disinfection option.3

As concerns mount regarding the safety and security of using chlorine gas for water disinfection, many utilities are choosing sodium hypochlorite (bleach) as a safer alternative. Once the decision to convert to a safer alternative has been made the question remains whether to purchase or produce sodium hypochlorite. Many are choosing MicrOclor to meet their disinfection requirements.


MicrOclor’s dilute (0.8%) hypochlorite solution is below the hazardous material concentration threshold of 1%. This reduces operator HazMat exposure and eliminates the need for diluting commercial hypochlorite to compensate for degradation which results in inconsistent solution strength.


The only raw materials required for the OSHG process is common salt. This will reduce vendor deliveries by 66% vs. commercial bulk hypochlorite. Less truck traffic through the community and at the facility will reduce the potential for accidents and eliminate the associated carbon footprint. This furthers efforts towards Green Facility Management and improves the Water Security profile.


Utilizing MicrOclor OSHG will enable storage of larger quantities of raw materials necessary for your disinfection process (salt). This will result in a more sustainable and robust treatment facility better able to withstand the demands imposed by a natural disaster or health emergency. OSHG is the only available disinfection technology that enables compliance with the Department of Homeland Security recommendations for Pandemic Flu Planning Guidelines.


Since all chlorine compounds are derived from salt, electrolytic conversion at the facility will result in significant savings to the owner. Typically it costs 50-70% less to produce sodium hypochlorite vs. buying it. The items listed above are the most significant of the many benefits realized by upgrading to MicrOclor OSHG. The attached documents will provide more detail on each of these points. We encourage you to contact the many Utilities currently using MicrOclor for further evidence supporting their decision to purchase a MicrOclor upgrade.

The MicrOclor onsite hypochlorite generation system incorporates a multitude of unique and novel features that are now patented. The most significant features are as follows:


  • Passive Hydrogen Removal
  • Brine Conductivity Control
  • Full Wave D.C. Rectification
  • No High Current Cell Penetrations
  • High Velocity Electrolyte Flow
  • Best Efficiency in the Industry
  • Recirculating Cell Loop
  • No Internal Cell Baffles or Gaskets

There is no other onsite hypochlorite system in the marketplace today that possesses even one of the above advantages, no less all eight.

A brief discussion of each individual advantage follows:

Passive Hydrogen Removal

Cells are configured in a vertical format with a recirculation loop on each cell that allows for optimized brine utilization and passive release of the hydrogen gas from each cell. Hydrogen gas is not allowed to pass from cell to cell. The design radically increases operator safety and substantially reduces the possibility of hydrogen gas build-up in the cell and the potential of catastrophic failure. By removing the hydrogen immediately from each cell eliminates the blinding of the electrodes by the gas bubbles.

 Brine Conductivity Control

Constant current is achieved via a current feedback loop where the brine pump speed is controlled by the system programmable logic controller. This feedback loop accounts for variations in temperature, conductivity and water flow. The titanium, Teflon impregnated gear pump is attached to a variable speed drive that continually provides a consistent blended electrolyte flow to the cells maximizing salt efficiency.

Full Wave D.C. Rectification

The D.C. Rectifier design consists of a fully isolated step-down transformer and bridge rectifier. D.C. voltage is fixed with primary taps for ±5, 10.0% voltage correction. D.C. ripple is less than 4.0% with a power factor of 99% or better. Switching rectifier or phase angle fired SCR voltage correction technology is not utilized as this twenty year old technology has an excessively high failure rate.

 No High Current Cell Penetrations

The electrolytic cells consist of thirteen internal bipolar electrodes while the cell outer body serves as both terminating anode and cathode. All anodic surfaces are coated with DSA catalytic coating. The design of the cell precludes the need for wet D.C. cable connections.

 High Velocity Electrolyte Flow

The passive4 hydrogen gas removal provides a hydraulic lift within the cell and creates a high velocity through the recirculation loop and across the cell plates. This high velocity flow results in a scouring action between the vertically mounted cell plates. The novel self cleaning feature virtually eliminates the need for acid cleaning of the electrolytic cells and reduces heat build up.

 High Performance Level

PSI’s proprietary patent pending vertical cell design provides for a far more efficient generation platform that the industry standard of 3.5 pounds salt and 2.5 KWH per pound chlorine equivalent.

The MicrOclor vertical cell produces hypochlorite at 1.0% while consuming less than 3 pounds of salt and 2.0 A.C. KWH per pound chlorine equivalent chlorine.

 No Internal Cell Baffles or Gasketing

There are no internal cell baffles, gaskets or fasteners found inside the cell. The cells are built with clear acrylic guides that support the internal bi-polar plates and allow for direct visual inspection of the plates. Anode and Cathode mono-polar plates are surface mounted to the outside of the acrylic guides.

 Cell Maintenance and Replacement

The MicrOclor vertical cell design allows for the cell to easily be removed from the cell carrier piping by simply breaking two unions. This makes for simple cell maintenance and or replacement.