Products & Services: Chemicals & Application Equipment

Sept. 1, 2002
Precise ozone treatment is assured using Pacific Ozone Technology's C250 Dissolved Ozone Process Controller. The dissolved ozone analyzer uses a programmable electrochemical monitor with direct sensing ozone probe to provide real time ozone concentration output to a microprocessor-based, single loop, fully-programmable PID controller.

Ozone control

Precise ozone treatment is assured using Pacific Ozone Technology's C250 Dissolved Ozone Process Controller. The dissolved ozone analyzer uses a programmable electrochemical monitor with direct sensing ozone probe to provide real time ozone concentration output to a microprocessor-based, single loop, fully-programmable PID controller. The PID controller sends a proportional signal to the ozone generator, controlling the ozone gas concentration delivered to the process from the ozone generator.

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Pacific Ozone Technology
Benicia, CA
Tel: 707-747-9600

Chlorine dioxide generators

Vulcan Performance Chemicals has introduced the Millennium III chlorine dioxide generator product line. Based on patented eductor-driven technology, these new chlorine dioxide generation and delivery systems are simpler mechanically and state-of-the-art electronically. The series generators combine sodium chlorite with either chlorine gas or sodium hypochlorite to form high-purity aqueous solutions of chlorine dioxide. Chlorine dioxide is a powerful oxidant and disinfectant, is particularly useful as a tool for controlling trihalomethane and haloacetic acids formation, and is effective over a wide pH range against bacteria, cryptosporidium and giardia.

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Vulcan Performance Chemicals
Birmingham, AL
Tel 800-474-4086

Metering injectors

Blue-White's Chem-Feed C-1500N Metering Injectors are suited for a variety of water and wastewater chemical treatment applications. The injectors feature the company's Heavy Duty Head with cartridge valves constructed of PVDF. Each valve has two ceramic checks, and is double sealed. The double ball valve design provides enhanced priming, and is exceptional for purging air and gas. Three models are offered. The Standard C-1500N has a dial-type, top mounted output control.

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Blue-White Industries
Huntington Beach, CA
Tel: 714-893-8529

Polymer injectors

The DI150 Polymer Injector is Dosatron's most widely used chemical dispenser for municipal water applications. The injector has a water flow range of 0.05 to 11 gpm, and an adjustable chemical dispensing ratio of 1:100 to 1:20, or 1.0% to 5.0%. The injector proportionally and consistently delivers a homogeneous chemical blend through an internal mixing chamber, thus preventing the formation of chemical clumping deposits. The water-driven technology allows the injector to be placed in any area regardless of plant location or size, since it does not require electricity.

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Dosatron International
Clearwater, FL
Tel: 800-523-8499

Chlorine analyzers

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.

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Foxcroft Equip. & Service Co., Inc.
Glen Moore, PA
Tel: 800-874-0590

Acidic wastewater treatment

Dow's MHT® Magnesium Hydroxide is a stable, alkaline slurry used to neutralize acidic wastewater streams. End users typically find that MHT improves pH control and reduces sludge generation. Pound for pound, it has more neutralizing power and is easier to store and handle than most other alkalis. Control of pH is improved because the product reacts quickly at lower pH and slowly at higher pH, naturally helping to hit the desired pH target without excessive over-shoot. Sludge generation is reduced because precipitation of solids occurs at a slower, more controlled rate, producing a low volume, high density particulate sludge that is easier to dewater.

Dow Chemical Co.
Tel: 800-447-4369

Digital dosing

Grundfos Digital Dosing metering pumps offer a wide effective turndown ratio. They feature easy to use functions and digital displays and serve as an alternative to solenoid-driven pumps. The pump's unique drive system allows for a high repeatable accuracy over the full 1000:1 turndown range of the pumps.

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Grundfos Pumps
Olathe, KS
Tel: 888-237-1960

Biological treatment

Novozymes Biologicals has introduced new, patent-pending technology for grease removal. Targeting maintenance of municipal collection systems and improved degradation efficiency of wastes containing fats, oils, and greases (FOG), this technology features a new microbe that breaks down the most difficult-to-degrade components of grease, the long chain fatty acids. This new bacterial isolate, BioS 3112, also degrades the volatile fatty acids that cause malodors.

Novozymes Biological Inc.
Salem, VA
Tel: 540-389-9361

Metering pumps

Walchem Corp. has introduced the LK Series Metering Pumps. The pumps are mechanically actuated diaphragm metering pumps. The motor-driven pumps have a maximum capacity of 114 gph and a maximum pressure of 150 psi. They are designed to pump a wide variety of chemicals used in municipal water/wastewater treatment. Their worm gear, tapered roller bearing, and oil bath lubrication provide outstanding durability and wear resistance. Output adjustment is made with a lockable micrometer. An optional DC variable speed drive is available for external control by a 4-20 mA input signal.

Walchem Corp.
Holliston, MA
Tel: 508-429-1110

Metering pumps

seepex MD pumps are now available in corrosion resistant materials. These pumps are designed for metering aggressive chemicals like sodium hypochlorite, ferric chloride and strong acids and bases. Pump bodies are HDPE with titanium rotating parts and internal or external seals. These pumps do not pulsate, have a 20:1 standard turndown, a 10-turn Vernier-type speed potentiometer, an H-O-A switch, accept a 4-20 mA signal and operate with a 1x115 vAC input.

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seepex, Inc.
Enon, OH
Tel: 937-864-7150

Chemical supplier

General Chemical is the largest U.S. manufacturer of aluminum sulfate, ferric sulfate and enhanced inorganic coagulants. Its enhanced coagulants, based on polyaluminum hydroxychloride and polyferric chemistry, are designed to replace traditional coagulants in performance-demanding applications. Its water treatment chemicals are used in numerous municipal water and wastewater treatment applications, including coagulation, clarification, TOC/BOD/COD and color removal, metal precipitation, residual reduction, phosphorus removal and odor control.

General Chemical Corp.
Parsippany, NJ
Tel: 800-631-8050

Metering pumps

Hydra-Cell Industrial Pumps has introduced its Slurry-Duty Metering Series Pumps. The pumps are available in three standard sizes, and provide consistent, virtually pulse-free metered flow at up to 37 gpm and 1200 psi. Flow remains linear throughout the pressure range. Their sealless design is ideal for use in pumping harsh abrasive slurries, shear sensitive fluids and clean corrosive chemicals, among others. The pumps use hydraulically balanced diaphragm technology, which allows higher speed operation and even higher turn down ratios. They are self-priming and can run dry without damage.

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Hydra-Cell Industrial Pumps, Wanner Engineering Inc.
Minneapolis, MN
Tel: 612-332-5681

Coagulant control

The Streaming Current Meter from Micrometrix is a coagulant dose control instrument designed for the water treatment industry. The instrument measures ionic and colloidal charge to determine how well the process is performing. Process upsets are prevented with alarm outputs. Custom or PID algorithms are used to control the optimum coagulant dosage. Coagulant dosing is controlled via a 4-20 mA control signal. Benefits include a low maintenance patent pending sensor design and average coagulant savings of 20-35%.

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Micrometrix Corp.
Suwanee, GA
Tel: 770-242-7118

Orthophosphate control

Drinking water utilities using orthophosphate to control corrosion have a choice of two color-matching tests from Taylor Technologies to monitor inhibitor dosages. The K-1110 employs the stannous chloride method and readings are made with a Midget™ Comparator housing eight liquid-color standards corresponding to the range 0, 0.5, 1.0, 2.0, 4, 6, 8, and 10 ppm PO4. The K-1112 employs the ascorbic acid method and readings are made with a Slide™ comparator housing nine liquid-color standards corresponding to the range 0, 0.25, 0.50, 0.75, 1.00, 1.25, 1.50, 1.75, and 2.00 ppm PO4.

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Taylor Technologies, Inc.
Sparks, MD
Tel: 800-837-8548

On-site disinfection

Kvaerner Chemetics and Electrolytic Technologies Corp. have formed a strategic alliance to supply modular on-site chlor-alkali generation equipment for large municipal water applications. The systems will be able to generate from 50 lbs. to 50 tons of active chlorine per day. Under the agreement, Kvaerner's technology will be incorporated into modularized and semi-custom engineered designs specifically for large municipal water treatment applications.

Electrolytic Technologies Corp.
Tel: 305-655-2259

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Kvaerner Chemetics
Tel: 604-734-1200

Sodium hypochlorite generator

Pepcon Systems' ChlorMaster electrochlorinators provide on-site sodium hypochlorite generation for use in a variety of applications including marine organism control, potable water chlorination, wastewater disinfection, and odor control systems. As a custom equipment manufacturer, the company can provide an electrochlorination system to meet specific project objectives. Its electrolytic cell design features the company's Bipolar Model Cell.

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Pepcon Systems
Cedar City, UT
Tel: 435-865-5045

Chemical feed systems

Saf-T-Flo has application engineers with experience in all types of chemical feed systems and applications. Detail drawings and engineering specifications are available for a broad range of chemical feeds. In addition, the company manufactures a complete line of chemical injectors, chemical diffusers, injection nozzles, and injection assemblies for municipal water and wastewater chemical feed systems.

Anaheim, CA
Tel: 800-957-2383

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