AWWA CEO David LaFrance thanks water professionals nationwide for keeping water safe for drinking
Dec. 16, 2014, marked the 40th anniversary of the Safe Drinking Water Act (SDWA), which today includes regulations for more than 90 contaminants. American Water Works Assn. (AWWA) CEO David LaFrance issued the following statement to mark the occasion.
The Breeze aeration system is an alternative to packaged systems for resolving iron and sulfur problems. Air volume and pump activation are controlled with a simple digital timer, reducing cost while improving performance. Installation is easy, and the system offers reliable performance.
Windmill-driven aeration technology for small water supplies
As populations grow, as urban, suburban and ex-urban areas expand, demand for water increases and safety standards rise. An effective and creative way to deal with problems of growth and resource management might just be to think small. A case in point is the Olivenhain Municipal Water District's (OMWD) treatment facility in San Diego County, California.
Out of a landscape parched for water?but certainly not ideas?comes a unique innovation in wastewater treatment from Premier Wastewater International (PWI tm).
Based in southern Nevada, PWI has developed an economical treatment process that can remove more than 90 percent of the organic matter, according to Matt Russell, president and CEO.
A major environmental project to help rejuvenate a lake at the heart of Berlin attributes much of its success to unique submersible blowers from UK manufacturer Adams Ricardo.
Using oxygen for the natural cleansing of water is becoming a viable alternative for pond and cistern owners in reducing the use of chemicals to fight the bacteria and algae that can become a nuisance. An aerobic bacterium needs oxygen in order to maintain the balance of nature. This article will take a look at some methods for increasing oxygen content, Henry's Law and applications that benefit from increased levels of O2.
The Biomixer Aeration and Mixing system is providing optimum dissolved oxygen transfer and mixing at this lagoon, in spite of the number of units being reduced from the original design of five units down to three. This is being obtained with the dissolved oxygen levels throughout the basin averaging 9.1 mg/l. Even at the influent end of the basin where the loading rate is the highest, the dissolved oxygen readings were above 8.5 mg/l.
In this last section of a three-part series, the use of ozone, ionization, distillation and aeration is discussed in a simple fashion to help the beginner rationalize the importance for a full understanding of these technologies and the need, again, for a professional water treatment specialist.
This is the final article in a three-part series discussing water chemistry and technology basics.
Brushing up on water treatment 101, part 3