This paper outlines ADB's interventions to improve water supply and sanitation services in Armenia. It also highlights the rationale behind the structure of a new tariff regime, which is aimed at fostering the long-term financial sustainability of the Armenian Water and Sewerage Company (AWSC), and summarizes main lessons learned.
The Water Quality Association comes to Denver
Purolite representatives from Canada as well as the Midwest and Northeast regions of the United States spent a few days in Denver to support the Water Quality Association (WQA) at their annual meeting. The WQA has been holding this event for its members for more than many decades and Purolite has been a part of the exhibition floor for several years. Visitors from across the globe were in attendence to learn about the latest news and technology in the water treatment industry. The main meeting, which all are...
Easy to Use Ozone Water Treatment Solution at Salmar Smolt Hatchery - Case study
SalMar Settefisk in Follafoss, part of SalMar ASA, is one of the largest salmon producers in the world with its production of 10 million smolts (fry) a year. When expanding its facility with a new RAS (recirculating aquaculture) system Primozone® was chosen to supply and design the complete ozone water treatment solution for the hatchery. Preferred supplier The Primozone solution was specifically requested by both SalMar Settefisk and Nofitech, the designer of the RAS system, as they thought this was the...
How to identify issues in water quality
Water quality can mean different things to different people and therefore depends on what standard of quality one is looking for, for example, water may be fine for fish to live in but lack the quality required for human consumption. To measure the quality of water accurately, tests are carried out to identify several key indicators. These characteristics are then compared to numeric standards and guidelines in order to decide if the water is suitable for a particular purpose. The assessment of the quality of...
Ozonation of dimethyl phthalate in water activated by N-methyl hydroxylamine
The degradation of dimethyl phthalate (DMP), which is a pollutant of concern in the water environment, was carried out by catalytic ozonation with N-methyl hydroxylamine (N-HA) at different pH. The process and mechanism were investigated for the removal of DMP and ozone (O3) under various experimental conditions including pH, N-HA dosage, and with or without tert-butyl alcohol (TBA). The results indicated that the removal of DMP was more efficient in the O3/N-HA system than sole O3, and the efficiency improved...
How to Choose the Right Biological Water Filtration System
There are many different biological treatments of water available. They’re all similar in a number of ways, but share key differences in the specific ways the water is filtered. This article is an informative breakdown of all the different biological water treatment systems that are available and how they work. Slow Sand Filtration This system supports the growth and maintenance of microorganisms that eventually become its primary filtering mechanism. Its layers work to get rid of any potential contaminants...