Ultraviolet disinfection systems for the wastewater industry - Water and Wastewater - Water Treatment
UV technology has made tremendous gains in the last 25 years and is now recognised as a primary method of disinfecting waste water. atg UV Technology have researched the wastewater industry and identified the need for a range of compact closed chamber UV systems, which are easy to install into a pipeline, can deal with a wide range of water qualities and offer a high output within a small foot print. The advanced range of atg UV systems have successfully treated a wide range of fluids, in many different industries and have been installed on traditional and specialist wastewater treatment works worldwide.
All typical wastewater micro-organisms are rendered non viable by a correct dose of UV light; atg UV maintains comprehensive databases of organisms and the dosage of UV required to achieve 1, 2, 3 or higher log removals. Additionally, our leading compact, closed system design means municipal waste water does not need to be disinfected using open channel UV systems. Open gravity flow channels suffer from many disadvantages: poor hydraulic mixing, very large footprint, expensive to build, high head loss and vulnerability to fluctuations in flow rate.
All of our products are designed for insertion directly into a pipe. atg UV engineers will be pleased to demonstrate how a redundant chlorine contact tank can be used to house a new UV installation.
System sizing is a function of flow rate, transmittance of the waste stream, microbial challenge, discharge consent, and degree of standby (if any). Usually a wastewater facility will operate the UV system seasonally and will sometimes isolate and bypass a UV facility when disinfection is not required to meet a discharge consent.
Wastewater applications include backwash water, screen washes, watershed management, stream discharge, storm-water overflows and, increasingly, the re-use of waste water. Applications for reuse include irrigation for agriculture, landscape and golf, and in coastal regions for direct injection into the aquifer. Aquifer Storage and Recovery (ASR) schemes are now being implemented in coastal and water stressed areas around the world to prevent saline incursion into the aquifer.
Unlike filtration, Ultraviolet treatment actually reduces the total number of organisms in the environment without the use of chemicals. This avoids an increase in the toxicity of the water thereby helping to maintain the natural and sensitive balance of ecosystems worldwide.
As climate change and growing environmental awareness drive effluent standards and water re-use initiatives, UV treatment is fast becoming a 'must have' treatment on many waste water streams. With an impressive international client portfolio and vast amount of experience in the Ultraviolet industry, atg UV are leading the way in the custom design of Ultraviolet technology systems that fully meet the dose and testing requirements for this rigorous process.