Efflux Systems

Daro UV Systems designs and manufactures effluent disinfection units complete with fully automatic quartz wiping systems for flows of between 1 – 8m³/hr in a single system.

Developed specifically for use in heavily contaminated flows. The self-cleaning systems are reliable and low-maintenance, a simple annual service, making them ideal for remote sites.

The team at Daro UV is expert in chemical-free, environmentally friendly effluent water disinfection and is leading the way with it range of Efflux products that have been uniquely developed to fit into standard wastewater pipes in domestic and small commercial settings.

Safe, non-chemical UV disinfection has brought major benefits to rivers and coastal discharges. UV disinfection works through the action of UV disinfecting light, which attacks the genetic structure of microorganisms, achieving a fast and effective destruction of pathogens without the need of a residence tank.

UV lamps are mounted in UV transmitting quartz glass sleeves, which provide an electrical safety barrier between the lamp and effluent. These are immersed in the full flow of the effluent discharge, after the pre-treatment stage.

Daro UV’s Systems has developed a revolutionary, effective, fully automatic self-cleaning method in situ, which means there is no need to remove the lamp modules.

The self-cleaning system is simple to install and reliable in daily operation making it particularly suited to domestic or unmanned schemes.

Without the self-cleaning system, during use, the quartz sleeves become fouled and need to be cleaned. Excess heat generated by the lamps bakes deposits meaning more frequent manual cleaning is necessary. Historically, cleaning relied on either manual removal of the unit, and the use of acid baths or, by ineffective mechanical systems that still need periodic acid polishing to prevent long-term, cumulative build up. For many, the use of aggressive chemicals to clean the lamp sleeves is undesirable, particularly on domestic or remote/unmanned sites with the added complication of chemical transportation and storage. The regular removal of the lamp assembly also increases the possible risk of damage to the lamp assembly.

Efflux will treat around 8m³/hr, dependent on effluent density. The UV systems fit into regular soil pipe fittings. The unit can also be installed in pumped, gravity fed, digester units, BAFF units or retrofit configurations. The Efflux System is available in two different formats: Gravity (U) and Dip pipework.

Operators can have greater confidence when choosing a system that will cope with future growth as treatment capacity can be altered according to demand. The carefully thought out design simplifies installation and minimise on-site construction work as a whole.

Configurations and Flexibility

Effluent disinfection systems can be configured in a variety of formats for new sites, retrofit or OEM markets. Larger multiple-lamp estates may also be custom designed for built in or skid packages. Daro UV Systems effluent-treatment units suit flow rates from one m³/hr upwards. This is achieved by using one of two standard lamp modules which can be expanded; either by increased lamp power or by adding extra lamp modules. Larger systems may be configured from a 10 lamp 10m³/hr standard module in single or multiple system, or to specification in larger bespoke formats.

Effective Self-Cleaning System

The EFF range from Daro UV Systems features an automatic wiping system developed specifically for use in heavily contaminated fluid streams. Using an effective two-stage cleaning system long term tests have proven the module does not require acid polishing or alternative backup cleaning. The UV lamp module is also compact and can be handled by one person when required. It fits into a “chamber” compatible with proprietary soil pipe fittings. Other pipe work formats are available allowing the unit to be installed in pumped, gravity fed, RBC (digester units), BAFF units or can be retrofit into existing solutions.

The mechanical action of wiping contaminants from the UV sleeve is a proven method of removing any solids, as has been proven in many large municipal installations globally.

In our own exacting tests, we have found that effluent solids will adhere to any surface including glass and Teflon® – therefore a mechanical wiping system is considered to be by far the best choice.

Upgradable Effluent Water Disinfection Units

Standard units can be upgraded without additional site-works, even if site parameters change. With this flexibility to upgrade treatment capacity, site operators have confidence and peace of mind that the system will cope with future growth in treatment demand. For more information please get in touch by phoning 01787 370187 or email info@darouv.co.uk

Minimal Servicing & Maintenance

Our cleaning system are designed with reliability in mind and the only maintenance required is a periodic inspection of the cleaning components, an annual UV lamp change and wiper blade replacement. The units are easily removed for servicing by a single operator and can be serviced on site or in a workshop without major shut down or inconvenience.

Enclosed Higher-Pressure Systems within the Effluent Water Disinfection units

Daro UV Systems provides enclosed UV systems for effluent that is pumped under pressure. These systems also include the mechanical wiping system.

Simple to install

The Daro UV Systems range has been specifically designed to simplify installation and minimise on-site construction work. The units are located adjacent to the upstream effluent plant and designed to fit in with your existing pipework. Large structures to house the UV units are not required.