Disinfection

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Chlorine analyzers

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The Foxcroft FX-1000p is an on-line amperometric chlorine analyzer for free or total chlorine residual readings. The analyzer can be used for monitoring potable water and wastewater with a high degree of accuracy and repeatability. It handles ranges from 0.01 ppm to 50 ppm without dilution. The low maintenance analyzer is designed to operate continuously using ordinary 5% white distilled vinegar as a pH buffer.
Foxcroft Equip. & Service Co., Inc.
Glen Moore, PA
Tel: 800-874-0590
Web: www.foxcroft.com

Ozone generators

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PDO/PDA ozone generators from PCI-Wedeco offer a production range of 400 PPD to more than 6000 PPD from single, standard units. Custom units can be built to produce even more for specific applications. The company's ozone generators come directly from the factory pre-assembled and fully tested prior to delivery.
PCI-Wedeco Env. Technologies
West Caldwell, NJ
Tel: 973-575-7052
Web: www.pci-wedeco.com

Monitoring systems

Hach's new Disinfection Control Solution brochure illustrates how water utilities can meet appropriate surface and groundwater regulations by applying in-facility water quality analyses throughout the process. Information from these analyses lets operators adjust processes to optimize removal of organic material, control disinfectant dosing, and limit formation of disinfectant by-products, all while meeting coliforms limits and containing chemical costs.
Hach Co.
Loveland, CO
Tel: 800-227-4224
Web: www.hach.com

Residual chlorine monitor

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ATI's new Model A15/79 Monitor measures Total Residual Chlorine using a gas phase measurement method that eliminates any contact between the sample and the sensor, greatly reducing maintenance requirements. In operation, a sample is reacted with buffer and potassium iodide in accordance with EPA recommended methods. Iodine released by residual chlorine in the sample is stripped from the sample using an air stripping column and the iodine is measured using a gas sensor.
Analytical Technology, Inc.
Oaks, PA
Tel: 800-959-0299
Web: www.analyticaltechnology.com

Briquette chlorinator

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The Constant Chlor Plus Briquette Chlorinator is designed to prepare and deliver a consistently accurate dose of available chlorine for disinfection applications. This patented chlorinator can supply up to 62 lbs. of AvCl2/day. The chlorinator uses solid dry calcium hypochlorite briquettes. The reservoir is filled with an approximate 1.5% available chlorine solution via an electronically controlled spray manifold. A positive displacement chemical metering pump is used to inject the chlorine solution into the water system.
HTH Water Chemicals
Kennesaw, GA
Tel: 800-432-7223
Web: www.archwaterworks.com/municipal

Chemical scale

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The Chlor-Scale® from Force Flow allows operators to monitor chlorine and SO2 gas use in order to prevent over and underfeed conditions and to enable documentation of actual chlorine fed. The scale is made from heavy gauge steel and then coated with a two-part epoxy paint system to withstand the corrosive environment often associated with gas feed rooms. Bronze bushed roller trunnions are standard.
Force Flow
Concord, CA
Tel: 800-893-6723
Web: www.forceflow.com

Chlorine testing

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The Idexx EZ DPD™ dispenser is designed to make residual chlorine testing easier. It allows sample collectors to dispense a pre-measured dose of reagent with the press of a button, eliminating powder handling and leftover foil pouches. Refill vials screw on. The dispenser works with a wide range of color cubes, color wheels and colorimeters. Color-coding distinguishes free and total chlorine tests. The test is based on the EPA approved Standard Methods 4500-Cl, G.
Idexx Laboratories, Inc.
Westbrook, ME Tel: 800-321-0207

Chlorine monitor

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Perfect for chlorine measurement in drinking water and wastewater treatment, the Extech ExStik™ Waterproof Chlorine Pen measures total chlorine and detects free chlorine, hypochlorite, and chlorine bound to nitrogenous compounds. It is available from Forestry Suppliers Inc.
Forestry Suppliers, Inc.
Jackson, MS
Tel: 800-647-5368
Web: www.forestry-suppliers.com

On-Site disinfection

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Klorigen™ on-site generators (OSG) are constructed of approved materials. Their electrolytic membrane cells generate high purity chlorine gas and sodium hydroxide. The raw materials required are salt, water and power. The principal advantage of the membrane cell is its efficiency and ability to separate the gas from the liquid. At one atmosphere the chlorine gas is educted directly into the treatment water flow. The production of chlorine gas is controlled through the power input. The co-product in this process is 15% concentration membrane-grade sodium hydroxide, which may be used for pH balancing and odor control. In some applications the value of this co-product completely offsets the cost of generating the chlorine gas.
Electrolytic Technologies
North Miami Beach, FL
Tel: 305-655-2755
Web: www.electrolytictech.com

Testing services

BioVir Laboratories provides MS2 Bacteriophage and Bacteriophage testing services for disinfection and filtration system challenge studies. Because it reduces the costs and drastically shortens the turn-around-time for a virus challenge study, Bacteriophage (typically MS2) is requested by regulatory authorities more and more frequently as a surrogate for animal virus. Other benefits to using Bacteriophage are that higher numbers of organisms (1014) can be produced relative to animal virus, no known health risk exists and MS2 is very stable.
BioVir Laboratories Inc.
Benicia, CA
Tel: 800-442-7342

Clearwell baffles

Environetic's Director™ clearwell baffles upgrade the performance of new or existing clearwell disinfection systems to meet the CT requirements contained in the Safe Drinking Water Act. The are manufactured of thermoplastic approved for potable water use, and meet NSF Standard 61.
Environetics Inc.
Lockport, IL
Tel: 815-838-8331
Web: www.environeticsinc.com

UV disinfection

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LightStream Technologies' LSi UV disinfection system integrates pulsed UV light, digital operating systems, optimum fluid dynamics and user-friendly touch screen operation into a "plug & play" disinfection machine that uses no chemicals and contains no mercury. The system provides disinfection by means of short, high-current pulses of electricity (up to 30 per second) through a single inert (non-mercury) xenon flash lamp.
LightStream Technologies
Reston, VA
Tel: 703-860-8580
Web: www.lightstreamuv.com

Disinfection services

In addition to helping clients evaluate, select and design the right disinfection treatment system for their needs, HDR's water and security experts can help design new facilities or modifications to existing installations fitting with today's security setting. The company offers expertise in water disinfection technologies ranging from chlorine gas to ozone to ultraviolet light.
HDR
Omaha, NE
Tel: 402-399-4929

UV Disinfection

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Ozonia North America designs and manufactures a wide range of Medium Pressure Ultra Violet (UV) systems incorporating the most sophisticated UV lamp and power supply (ballast) technology available. Its medium pressure UV systems are designed for various water and wastewater treatment applications. Each system employs a touch-screen operator interface and PLC driven control logic.
Ozonia North America
Elmwood Park, NJ
Tel: 201-794-3100
Web: www.ozonia.com

UV disinfection

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Aquionics is a supplier of UV disinfection equipment. Its systems offer minimal headloss, high dose, high volume capability, and automatic cleaning. They have a small footprint and lamp output is unaffected by water temperature. The systems feature adjustable lamp power levels and data logging capabilities. They can be used in both gravity flow and pumped applications.
Aquionics Inc.
Erlanger, KY
Tel: 800-925-0440
Web: www.aquionics.com

UV access cover

Halliday Products offers a hinged access cover for UV disinfection systems. Typical municipal ultraviolet disinfection settings employ heavy access gratings requiring two operators for servicing. This aluminum access cover, however, is hinged and spring assisted to allow UV lamp maintenance, providing a lightweight alternative.
Halliday Products Inc.
Orlando, FL
Tel: 800-298-1027
Web: www.HallidayProducts.com

UV system

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USFilter's Wallace & Tiernan Products has introduced the Barrier™ UV System for potable water disinfection in small system applications. These state-of-the-art ultraviolet disinfection systems are available in various sizes to handle flowrates from 14 gpm up to 1 mgd. The system uses low pressure, high intensity UV lamp technology that delivers up to five times more UV output than conventional low-pressure, low-intensity lamps.
USFilter's Wallace & Tiernan Prod.
Vineland, NJ
Tel: 856-507-9000

UV disinfection

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The Suntec environmental LPX Series is a modular UV system designed to treat wastewater by exposing microorganisms in the plant effluent to radiation at a wavelength of 254nm for a certain time period. Each system is sized to meet the regulatory requirements at the varying flow rates for a particular application. The state-of-the-art UV disinfection system features parallel flow configuration, an advanced ballast design, high-output low-pressure lamp technology and an automatic cleaning system.
Suntec environmental, Inc.
Concord, Ontario
Tel: 905-669-4450
Web: www.suntecuv.com

Gas feed system

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Severn Trent Services introduces the Capital Controls Series NXT3000™ modular design, all-vacuum, sonic gas feed system for use in municipal disinfection applications. The modular design offers the ability to rapidly custom design systems. Each component is offered with a preventive maintenance kit to minimize downtime and the costs associated with infrequent replacement of consumable parts.
Severn Trent Services
Colmar, PA
Tel: 866-787-9287
Web: www.severntrentservices.com

Chlorination equipment

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Severn Trent Services' ClorTec onsite sodium hypochlorite generators are a safe alternative to gas chlorination for the disinfection of drinking water and wastewater. With units that produce from 2 to 2500 pounds of chlorine equivalent per day, the generators can serve almost any size treatment facility. The units feature PLC-based controls that are easily integrated with SCADA and telemetry systems, and a customized computer and command option is available that offers full communication and data-logging capabilities.
Severn Trent Services
Campbell, CA
Tel: 800-524-6542
Web: www.clortec.com

UV disinfection

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Trojan Technologies is an ISO 9001 registered company and for more than 25 years has produced UV disinfection systems. The company's Trojan UV3000™Plus is a flexible system suited for wastewater disinfection projects including challenging applications such as combined sewer overflows, primary effluent, and tertiary wastewater reclamation and reuse. The system is engineered for reliable performance, simplified maintenance, and reduced costs.
Trojan Technologies Inc.
London, Ontario
Tel: 519-457-3400
Web: www.trojanuv.com

Chlorine scrubbing

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Purafil ESD, a manufacturer of dry-scrubbing, odor control equipment and Cl2/SO2 emergency gas scrubbers, has doubled the removal capacity of its Chlorosorb® dry-scrubbing media. For every 100 pounds of chlorine accidentally released, the enhanced "Chlorosorb® II" media removes 10 pounds of the gas. The media's enhanced formula has lowered the cost of an air-cleaning system.
Purafil, Inc.
Doraville, GA
Tel: 800-222-6367

Sodium hypochlorite generators

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MIOX Corporation's on-site sodium hypochlorite generators use only salt, water, and electricity to form a dilute chlorine solution for wastewater disinfection. No hazardous chemicals are involved, eliminating Risk Management Plan (RMP) compliance audits and the hassles of HAZMAT, SCBA, and DOT trucking requirements.
MIOX Corp.
Albuquerque, NM
Tel: 888-646-9426
Web: www.miox.com

On-site electrochlorinator

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ChlorMaster™ electrochlorinators provide on-site sodium hypochlorite generation for disinfection in potable water facilities, sewage treatment plants and sewage collection systems where sodium hypochlorite is used for primary disinfection and to maintain a chlorine residual. Whether for potable water or wastewater disinfection Pepcon Systems can provide an electrochlorination system to meet specific project objectives.
Pepcon Systems
Cedar City, UT
Tel: 435-865-5045
Web: www.pepconsystems.com

Chlorine dioxide generator

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Vulcan Performance Chemicals has introduced the MillenniumIII chlorine dioxide generator product line. Based on patented eductor-driven technology, the new chlorine dioxide generation and delivery systems are simpler mechanically and state-of-the-art electronically. The generators combine sodium chlorite with either chlorine gas or sodium hypochlorite to form high-purity aqueous solutions of chlorine dioxide.
Vulcan Performance Chemicals
Birmingham, AL
Tel: 800-474-4086
Web: www.vul.com

Valve actuators

Halogen Valve Systems' New Terminator Actuator™ systems can sequentially close 150 lb. cylinder valves in 2 1/2 seconds from remote sensors and switches. This fire code approved microprocessor controlled system quickly applies 50 foot-pounds of torque to assure the closure of hazardous gas valves. The system has a self-contained battery system that guarantees operation of the motorized closing mechanism during a power failure.
Halogen Valve Systems
Irvine, CA
Tel: 877-476-4222
Web: www.halogenvalve.com

Chlorine containment system

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TGO Technologies offers the ChlorTainer chlorine containment system. The technology features a high-pressure containment vessel into which a one-ton or 150-pound chlorine gas cylinder is rolled. Once the cylinder is in place, the vessel is sealed. Chlorine is processed from within the vessel through a vacuum regulator connected to a fail-safe actuator.
TGO Technologies Inc.
Santa Rosa, CA
Tel: 800-543-6603
Web: www.tgotech.com

Tablet chlorination

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PPG's Accu-Tab® tablet chlorination system consists of 3-inch calcium hypochlorite tablets with 65 percent available chlorine and patented erosion chlorinators. The chlorinators have no moving parts or small openings to clog and eliminate the need for metering pumps.
PPG Industries, Inc.
Pittsburgh, PA
Tel: 412-434-3131
Web: www.ppgaccu-tab.com

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