Barrier® M UV System

Siemens Water Technologies offers a complete range of ultraviolet (UV) disinfection solutions for municipal drinking water, municipal wastewater, water reuse, industrial, commercial, aquatic and high-purity applications.

Barrier M Series UV irradiation can be used for multiple purposes in water treatment, but is primarily employed as a disinfection process that inactivates waterborne pathogens without chemicals. For other applications, UV is used for the removal of organic and inorganic chemicals, including chlorine, chloramines, ozone and Total Organic Carbon (TOC). When combined with oxidants such as ozone or hydrogen peroxide, or semiconductors such as titanium dioxide, UV can be used for the oxidation of refractory chemicals such as chlorinated solvents, taste and odor compounds, and other emerging contaminants.

Design of the System

The heart of Barrier® UV systems is the treatment chamber which is equipped with WTL high-performance UV lamps, optimally arranged in the chamber to suit each individual application. The UV systems can be mounted in both horizontal and vertical piping systems.

UV Sensor

A UV sensor monitors the disinfection process continuously by measuring the UV-C intensity inside the UV chamber. The measured absolute values are displayed on the control panel in W/m2 or %. In the case of a UV alarm, both a dry contact and an indication on the display will be activated.

Cleaning Mechanism

To remove deposits and other fouling from the quartz sleeve(s) and UV sensor, a specially designed, optional cleaning mechanism cleanses the system during the disinfection process. Both manually and automatically operated versions are available for most models. The operation of the automatic cleaning mechanism is controlled by the UV sensor, an implemented timer or by the operator, if preferred.

Barrier ® M UV Systems

Barrier® M UV systems are equipped with Wallace & Tiernan® medium pressure UV lamps. These high power lamps emit a wide spectrum of UV energy which is very effective in disinfecting the water and also in blocking the possible photoreactivation of the microorganisms. The medium pressure UV lamps result in a very compact treatment chamber design with a small footprint able to treat large water flows.

Control Panel

A Barrier® UV system is controlled by a panel of painted steel as standard, with stainless steel as an option. Each individual UV lamp is monitored and the status is displayed by an LED indicator. For other alarm signals, such as UV alarms, separate LED indicators are available on the display. The display also has a 16 character LCD screen to show information about the system para-meters, utilising two buttons, a user-friendly, easy to operate, interface has been created.

In addition to the display for local control, the control panel has dry contact inputs and outputs present for remote control. Several serial communication options are also available.

Chloramine Reduction Capacity1

Model

US gpm

m3/hr

T10 mm

Barrier M UV Systems

M 35

84

19

95%

M 80

172

39

95%

M 135

269

61

95%

M 2752

524

119

95%

M 5252

775

176

95%

M 700

1299

295

95%

M 950

1770

402

95%

M 1200

2325

528

95%

M 1700

2875

653

95%

M 2000

3302

750

95%

M 26002

4288

974

95%

1Capacity at a UV dose of 600 J/m2 (60mJ/cm2) at end of lamp life based on the multiple point summation method, transmittance T10mm = 95%, chloramine reduction in pool approx. 50% when system is operated continuously in full flow conditions.

2Also available in DVGW certified execution; please consult factory or individuals data sheet for biodosimetrical certified capacities. (DVGW – Internationally recognized authority on certification of UV disinfection systems. DVGW – German Technical and Scientific Association for Gas and Water).

Barrier® UV System Benefits
  • Proven chloramine reduction effectiveness
  • Significant improvement of the pool environment air quality
  • Reduction in water and energy costs
  • Better overall water quality
  • Simple and low-cost installation. Easy retrofit and service, low head loss and compact plus small footprint with in-line reaction chamber
  • Extended lamp life and low lamp replacement costs