UV disinfection
Aquionics' ultraviolet technology provides the high level disinfection required before reuse water can be pumped back to the environment or reused for domestic purposes. One Aquionics 4000-watt multi-wave lamp is equivalent to 18 conventional low-pressure lamps, allowing a smaller footprint and lower installation costs. Ultraviolet technology has no byproducts to harm delicate ecosystems. It creates no chlorine residual and requires no dechlorination prior to surface water discharge.
Aquionics Inc.
Erlanger, KY
Tel: 800-925-0440
Fax: 606-341-0350
Web: www.aquionics.com
Shutoff system
Capital Controls, a manufacturer of equipment for water and wastewater treatment and disinfection, has introduced the SafeTC chlorine gas cylinder and ton container shutoff system. The new system offers safe and rapid shutoff of containers commonly used in water and wastewater treatment operations. It is an alternative to scrubbers required by some building and fire regulations. The system can control up to 10 container valves with a single control unit. The valves are closed using nitrogen. The control panel features battery back-up power to maintain operation during a power failure.
Capital Controls Company
Colmar, PA
Tel: 215-997-4000 Fax: 215-997-4062
Web: www.capitalcontrols.comXX
Gas chlorinator
The Regal gas chlorinator from Chlorinators Inc. is a direct cylinder mounted, all-vacuum system in which chlorine gas is drawn through the unit with vacuum created by the flow of water through the ejector. If the vacuum line breaks or is damaged, the gas shuts off automatically. The system also features a reusable filter that removes impurities while permitting flow rates up to 500 lbs/day. Additional features include a high-pressure check valve design that resists wear and damage caused by water hammer when the system shuts off.
Chlorinators Inc.
Stuart, FL
Tel: 561-288-4854
Fax: 561-287-3238
Web: www.regalchlorinators.com
Control system
The Mantra process control system from ControlSoft offers an alternative to traditional loop controller based solutions. With the flexibility of PLC architecture or personal computers, the controller is ideal for small or mid-size systems with 40 or fewer loops. The system can be used for control of chlorination, pH and dissolved oxygen. It has advantages over loop controller-based systems. In particular, it features intuitive graphical programming techniques, a choice of more than 80 control function blocks and smart display faceplates.
ControlSoft
Cleveland, OH
Tel: 216-397-3900
Fax: 216-381-5001
Web: www.controlsoftinc.com
Chlorine residual analyzer
Ecometrics has developed a new chlorine residual analyzer/monitor. The Series 8000 Analyzer is designed to continuously measure free or total chlorine residual in water or wastewater and incorporates microprocessor-based control technology. It's programming features include a set point residual control option, two-step calibration and range selection between 0.01 and 20 ppm chlorine. The analyzer has a gravity reagent feed system, gold and copper electrodes, a direct drive electrode cleaning system and a thermistor for temperature compensation.
Ecometrics Inc.
Silverdale, PA
Tel: 215-453-9800
Fax: 215-453-1000
Web: www.ecometrics.com
Sodium hypochlorite generators
SANILECRegistered B25 and B36 onsite sodium hypochlorite generators from Exceltec are designed for water disinfection applications in smaller municipalities. The B25 will produce up to 25 pounds of chlorine equivalent per day while the B36 produces up to 36 pounds. Each of the new units features a single electrolytic cell, stainless steel support structure and an HDPE pallet. Exceltec's patented electrolytic cell passes direct current through a brine solution and produces a non-degrading, low concentration sodium hypochlorite solution, eliminating the need for chlorine gas, bulk hypochlorite and chemical additives.
Exceltec
Sugarland, TX
Tel: 281-240-6770
Web: www.sanilec.comX
Electrolytic chlorination
Wallace & Tiernan Products' OSECRegistered (On-Site Electrolytic Chlorination) systems provide an alternative to bulk storage of sodium hypochlorite for disinfection. The system produces sodium hypochlorite from salt, water and electricity, eliminating the transport, handling and storage difficulties of bulk hypochlorite. The systems produces a dilute 0.8 percent sodium hypochlorite solution that is stable and will not degrade. Each system features fully automatic controls with safety alarm interlocks and positive hydrogen gas removal and dilution via an air blower.
USFilter/Wallace & Tiernan Products
Vineland, NJ
Tel: 856-507-9000
Fax: 856-507-4125
Web: www.usfwt.com
Container scales
The Chlor-Scale from Force Flow Equipment allows chlorine and SO2 ton containers to be precisely monitored. The ability to track daily chemical usage by actual weight loss helps insure against under- and over-feeding of chemical. Also, knowing how much chemical remains eliminates the mistake of returning partially full containers to the supplier. The scale is available with the Century hydraulic dial indicator, the Wizard 4000 or the Solo 1000 digital indicators. All offer 4-20mA output signals for remote monitoring via a PLC or SCADA system.
Force Flow Equipment
Concord, CA
Tel: 925-686-6700
Fax: 925-686-6713
Web: www.forceflow.com
Water main disinfection
Arden Industries offers the Dechlorination Bazooka, a system designed for water main disinfection. The unit attaches directly on a 2 OMEGA in., 4 in., or 4 OMEGA in. fire hydrant fitting, or a riser from the water main. By opening the hydrant valve, water passes through, creating a vacuum that pulls the dechlorination chemical from its supply container via a Rotometer Rate Valve Assembly. The Bazooka also comes in a 1 OMEGA in. size for injecting chlorine when sterilizing new wells and water mains.
Arden Industries
Shingle Springs, CA
Tel: 530-6773671
Fax: 530-677-3672
E-mail: [email protected]
Ozone measurement system
The AccuZone from GLI is a residual ozone measurement system based on the company's 53 and 33 analyzers. It is microprocessor controlled and easily calibrated in air. The system is sensitive and highly selective to ozone, eliminating worries about interference from other water constituents. The AccuZone adds to the GLI drinking water instrumentation family of the Accu4 low range turbidity analyzer and the AccuChlor chlorine monitor.
GLI International, Inc.
Milwaukee, WI
Tel: 414-355-3601
Fax: 414-355-8346
Web: www.gliint.com
Control valve
Hydro Instruments has released a new automatic valve for flow proportioning, residual control or compound loop control of vacuum gas chlorination and sulfonation systems. The valves are enclosed in one NEMA 4X enclosure with a compact design. They are microprocessor based, keypad controlled and feature a bright, alphanumeric fluorescent, two-line, 20-digit display. The display will indicate gas flow in percent, ppd, gr/h and kg/hr. In any control mode, the valves can be switched to manual control where gas feed rate can be set through the keypad interface.
Hydro Instruments
Quakertown, PA
Tel: 215-538-1367
Fax: 215-536-4442
Web: www.hydroinstruments.com
Emergency shutoff systems
Halogen Valve offers an emergency shutoff system for chlorine cylinder and ton containers that mounts to existing valves without special tools. The valve may be opened or closed while the actuator is in place. The actuator will close a chlorine valve in less than one second in response to sensors and local or remote switches. The system provides a secondary safety system to enhance Risk Management Programs.
Halogen Valve Systems
Irvine, CA
Tel: 949-261-5030
Fax: 949-261-5033
Web: halogenvalve.com
Chlorine analyzer
The Hach CL17 Chlorine Analyzer is an online instrument that uses the USEPA accepted DPD method of analysis for measuring free or total residual chlorine. The analyzer is used to control the chlorine feed in the disinfection process, for control of taste and odor, and to monitor effluent residual chlorine. For wastewater plants, the unit is supplied with a self-cleaning bypass Y-strainer and larger tubing and fittings. A seal-free, solid-state mixing system reduces maintenance and improves mixing. The motion of the stir bar self-cleans, virtually eliminating the buildup of solids on the stir bar and in the sample cell.
Hach Co.
Loveland, CO
Tel: 800-227-4224 Fax: 970-669-2932
Web: www.hach.com
On-site disinfection
MIOX has developed a new electrolytic cell for water disinfection with a free available chlorine (FAC) capacity of 100 lbs/day, effectively doubling the capacity of the largest MIOX on-site generator to date. Cell modules can be arranged up to 4 per control cabinet for a total capacity of 400 lbs/day FAC per system. The generators use only salt, water, and electricity to produce an aggressive mixed-oxidant stream. A lack of hazardous chemicals means a much safer working environment and no Risk Management Plan audits.
MIOX Corporation
Albuquerque, NM
Tel: 505-343-0090
Fax: 505-343-0093
Web: www.miox.com
Compact ozone generators
Ozonia North America manufactures ozone generators capable of producing from one pound to thousands of pounds of ozone per day using high endurance non-glass dielectrics. The proprietary Advanced Technology (AT) dielectric makes it possible to produce higher concentrations of ozone than conventional generators, while using less oxygen and electricity. The new Ozonia OZAT series of ozone generators are compact and prepackaged and consume up to 50 percent less oxygen to generate the same amount of ozone as conventional plants.
Ozonia North America, Inc.
Elmwood Park, NJ
Tel: 201-794-3100
Fax: 201-794-3358
Web: www.ozonia.com
Ozone system
The SCA44 Ozone/Oxygen system from Pacific Ozone is enclosed in a corrosion resistant stainless steel floor mount cabinet with fully integrated controls. The newer, bigger addition to the SGA Series produces up to 6.4 lbs./day of high concentration ozone. The small footprint makes these self-contained systems ideal for a variety of medium-sized applications. The controls include a variable power control, feed gas flow meter, and a reference meter. The system can be controlled manually or remotely using a 0-10 vDC signal from the C250 Dissolved Ozone Analyzer/Controller or other standard proportional control signal.
Pacific Ozone Technology
Brentwood, CA
Tel: 925-634-7252
Fax: 925-634-7291
Process controller
The Scaletron Model 1099 Chemical Process Controller is central to the company's "total electronic" system, which provides scale weights and automated reports of chemicals used in water treatment. The controller provides automated control of the batching process of chemicals used to make up day tanks. The controller also can operate four scales with four individual channels. It can monitor up to four group of scales with each group using one channel for a total of 16 scales. It is also capable of operating different types of scales (dual cylinder, drum, platform, ton) used in the same system as long as the number of load cells does not exceed 16. The controller will provide reporting information to a printer, recorder or SCADA system.
Scaletron Industries, Ltd.
Plumsteadville, PA
Tel: 215-766-2670
Web: www.scaletronscales.com
Chlorination system
PPG offers the Accu-Tab tablet chlorination system, which consists of three-inch calcium hypochlorite tablets with 65 percent available chlorine and a patented delivery system. The low-maintenance design has no moving parts. A portion of the process water, whether potable or wastewater, is diverted through the chlorinator. The water flow erodes the tablet, with the amount of chlorination being controlled by the inlet water flow. The chlorinated water is then returned and mixed in with the process stream.
PPG Industries, Inc.
Pittsburgh, PA
Tel: 412-434-2359
Fax: 412-434-3695
UV lamp monitor
Solar Light now offers a monitoring system for germicidal lamp intensity in open and in-line water treatment systems using UV lamp disinfection. Designed for continuous operation under water, the GLM100 has a narrow spectral response for monitoring 254 nm radiation that will not respond to sunlight or other visible radiation. Typically, UV-C producing lamps must be monitored to ensure a lethal dose to microorganisms. Operator alert levels can be set for a specified minimal intensity that determines when cleaning or maintenance is required.
Solar Light Co.
Philadelphia, PA
Tel: 215-927-4206
Fax: 215-927-6347
Web: www.solar.com
UV Disinfection System
Trojan Technologies offers a municipal drinking water UV system. Ultraviolet disinfection provides a reliable alternative to chemical disinfection. The system's optimized configuration, based on a validated Computational Fluid Dynamics (CFD) design, inactivates viruses, bacteria, and protozoa with no disinfection by-product formation. The system incorporates flexible options for quartz sleeve cleaning; a compact unit with a small footprint; and advanced controls combined with state-of-the-art sensor technology. The system is available in a range of sizes to meet the needs of large or small municipal drinking water treatment plants.
Trojan Technologies
London, Ontario, Canada
Tel: 519-457-3400
Fax: 519-457-3030
Web: www.trojanuv.com
Oxygen generating systems
Praxair-Trailigaz Ozone Co. combines the strengths of Praxair, an industrial gases company, and Trailigaz, a subsidiary of Vivendi Water. The company designs and manufactures ozone-generating systems ranging in size from one pound per day to 7800 pounds per day. It offers complete services from pilot studies to turnkey installations.
Praxair-Trailigaz Ozone Co.
Cincinnati, OH
Tel: 513-530-7702
Web: www.ptoc.com
