Water Reuse with Ultraviolet Disinfection

The advanced treatment and reuse of wastewater (also called water reclamation), is becoming increasingly common as municipalities address high water demands and shrinking supplies.

Australia, Spain, Italy, California, Texas and Florida are just some of the areas around the world being affected by drought and the need to balance increasing population growth, dry climates and heavy irrigation/agricultural demands with water demands. 

Sustaining Water Supplies and UV
Reusing wastewater is an essential strategy for wastewater treatment plants in these regions and UV disinfection is a key element in the treatment scheme.

UV offers the benefits of not producing by-products and replaces a complicated three step chemical disinfection process with a single physical UV process. When a chemical disinfection process is used, the reuse water must be chlorinated, dechlorinated and then aerated if required. For reuse water, high chlorine doses may be required which increases the likelihood of disinfection by-product formation.

UV and High Dose Requirements
Most regions require UV systems to meet high dose requirements (in California it is known as Title 22) based on Ultraviolet Disinfection Guidelines for Drinking Water and Water Reuse published by the National Water Research Institute (NWRI) / American Water Works Association Research Foundation (AwwaRF).

Open channel (gravity flow) UV systems can be installed in existing chlorine contact chambers.

TrojanUV is the Leading Provider of UV and UV-Oxidation Solutions
TrojanUV disinfection systems have been installed in reuse applications around the world. The treated effluents are being reused for recreational and agricultural irrigation, aquifer recharge and to reduce discharge to already-stressed waterways.

In some applications like Indirect Potable Reuse, Trojan provides UV-oxidation systems for chemical contaminant treatment along with high-level disinfection.

Closed vessel (pressurized) UV systems are typically installed after membrane bioreactors

Further Reading

Find out More

Contact us at +1 (888) 220-6118, or email us today.

Related Products

  • TrojanUV4000Plus

    The TrojanUV4000Plus™ is the first commercially-successful, medium-pressure UV lamp system that’s specifically designed for handling high volume and lower quality wastewater. 

    More

  • TrojanUV3000Plus

    The TrojanUV3000Plus was designed for medium to large wastewater treatment plants and features the patented ActiClean Cleaning System, an automatic chemical/mechanical wiping system.

    More

  • TrojanUVFit

    Depending on site and design conditions,wastewater treatment plants producing filtered effluent sometimes prefer a disinfection solution using closed-vessel or pressurized UV reactors.

    More

  • TrojanUVSigna

    Chlorine is not the only disinfection option for mid- and large-scale applications. With the TrojanUVSigna, operators and engineers can confidently choose UV and benefit from its inherent safety features, cost-saving advantages and disinfection performance.

    More

Cookies are important to the proper functioning of a website. To improve your experience, we use cookies to remember log-in details and provide secure log-in, collect statistics to optimize site functionality, and deliver content tailored to your interests. Click Accept to accept cookies and continue browsing the TrojanUV website. If you decline an essential cookie will be used to remember your preference not to be tracked. Accept Decline