In this posting we would like to discuss the use of ozone in recycling industrial process water.   Recycling water is becoming more important as the availability of high quality water is decreasing, the cost of purchased water increases, costs associated with discharging water increases and compliance and liability issues continue to be more serious.  Water […]

In this posting we are going to discuss using an ozone generator in a system where the flow of water is intermittent.  An example would be a well pump that is feeding a pressurized system.  In these systems the pump comes on in response to a drop in system pressure.  It is not good practice […]

A number of clients that call us regarding ozone water treatment systems often don’t know how much ozone they will need.  They know the amount of water they treat and the treatment objective, but they don’t know how much ozone will be required to meet that treatment objective. This is not much of a surprise […]

In this posting we will discuss the use of ozone for residential wastewater disinfection.  While not practiced extensively in the US versus chlorination and UV, ozone is used more often for wastewater treatment in Europe.  The advantages of ozone include: it is more effective than chlorine in destroying viruses and bacteria.  The ozonation process utilizes […]

Previously we had discussed the removal of color from drinking water.  We will now discuss the removal of color from textile wastewaters. The textile industry is familiar with ozone and comfortable with its use.  Ozone has been used for successfully for removal of color from textile waste water streams.  Ozone has also been used in […]

We are continuing our discussion of ozone applications in the treatment of drinking water.  One of these applications is the enhancement coagulation and flocculation which often results in improved filtration and improved turbidity.   Rakness has surveyed water treatment plants that use ozone and has found that many of them have observed an improvement in coagulation […]

Continuing the postings related to the application of ozone in water treatment, we will cover the use of ozone for disinfection.   In general, disinfection with ozone, and other oxidizing disinfectants, is measured by CT.  This is a product of the disinfection residual by the time of exposure to the residual.  If one imagines a curve […]

Continuing our series on applications for ozone in water treatment, we will cover the topic of taste and odor control.  Taste and odors found in water can be from a variety of inorganic or organic sources.  Iron and hydrogen sulfide are two common inorganic compounds known to produce odors in water.  Both are easily treated […]

Todays posting has to do with the use of ozone in color removal from drinking water. In our next posting we will cover another important application for color removal in textile wastewater. Color is an important concern for drinking water treatment plant operators since it is responsible for a significant number of customer complaints about […]

Continuing our discussion of applications for ozone in water treatment, we will briefly cover the topic of hydrogen sulfide.  Hydrogen sulfide is found in ground water around the world.  It is perceived as the odor of rotten eggs and can be smelled in air with a concentration as low as 0.001 ppm.  It can also […]