Clear Lake, a water source for Lake County, CA, is a nutrient rich body of water that is plagued by algae blooms that create serious taste and odor problems with the water. This is a situation that affects many communities drawing water from reservoirs and lakes with algae. Some water companies treating water from this […]
Ozone for Emmissions Reduction in Diesel Engines
We came across a very unique application for ozone for emission reduction in diesel engines. While it is outside of the main stream use of ozone, it is a very clever application of the molecule. Diesel engines are plagued with emission problems associated with the release of particulates from incomplete combustion of the diesel fuel. […]
National Aviary Uses Ozone for Penguin Exhibit
The National Aviary is America’s only independent indoor nonprofit zoo dedicated exclusively to birds. Located in West Park on Pittsburgh’s historic North Side, the National Aviary’s diverse collection comprises more than 500 birds from around the world, many of them threatened or endangered in the wild. The National Aviary’s large walk-through exhibits create an experience […]
Reduction in Wastewater Plant Sludge Production with Ozone
An emerging application for ozone use in wastewater treatment is the reduction of sludge generation from the activated sludge plants. Sewage plants must dispose of their excess sludge. To do so, additional processing of the sludge is required including filtration and dewatering. In some cases, the sludge must be disposed of in landfills where the […]
Seventh Grader Demonstrates the Danger of Ozone for Home Air Purification
In a previous post, we noted that the EPA found that air purifiers that emit ozone either did not work or if they did emitted dangerous levels of ozone in the air. This area was not very well regulated, but recently California has taken steps to regulate ozone generators for home use. Seventh grader Otana […]
Technical & Educational Council of the AWWA
We have been asked by the American Water Works Association (AWWA) to distribute the following information on the Technical & Educational Council (TEC). As a member of the AWWA and the disinfection committee of the TEC, we are pleased to share information on the TEC mission. The TEC is responsible for many AWWA activities involving […]
Protecting Ozone Generators – Gas Preparation
In the last couple of posts we have been talking about protecting ozone generators from damage. Today we will cover preparing the feed gas for the generator. The most important parameter in gas preparation, whether it is an air fed or oxygen fed system, is moisture control. Virtually all ozone generator manufacturers insist on dry […]
Protecting Ozone Generators
We often hear potential ozone users worry about the reliability of ozone generators for ozone water treatment applications. The reality is that well made ozone generators can last 10-20 years with good preventative maintenance programs. The fact that many systems don’t last this long is a result of either poor gas preparation or back flow […]
United Water Upgrades Ozone Equipment
United Water completed a $100 million rehabilitation of the Haworth Water Treatment Plant including ozonation equipment. The improvements were the largest single capital investment for United Water during its 140-years of operation. The project was driven by drinking water regulatory compliance issues. These were caused by pollution of the source water. Better protection of the […]
Boston Improves Water and Wasterwater Treatment with Ozone
At the International Ozone Association meeting in Boston a couple of months back, Frederick Laskey, who is the executive director of the Massachusetts Water Resource Authority (MWRA) gave one of the keynote addresses. MWRA supplies 220 MGD of drinking water and treats 350 MGD of wastewater. Boston once had, or at least what was called, […]