SHOWCASE

Drinking water treatment

Krofta Technologies is in the process of commissioning a 12 mgd drinking water installation in Sayreville, NJ, using one 49' Krofta Supracell and two 49' SAF-BP Sandfloat Clarifiers for clarification and iron/manganese reduction. The company's Sandfloat SAF-BP is a patented dissolved air flotation clarifier and dual media bed filter that combines flocculation, flotation, and filtration in one piece of equipment. The unit is designed so that individual segments in the filtration process can be backwashed without shutting down the entire unit and provides first filtrate recycle capability.
Krofta Technologies Corp.
Dalton, MA
Tel: 413-236-5634
Web: www.kroftatech.com

On-line nutrient analyzer

Myratek's new Sentry™ C-2 on-line ammonia and nitrate analyzer measures nutrients directly in the treatment basin for a true in-situ analysis. The analyzer's patented sample chamber captures and analyzes at the sampling point and requires no settling of the sample, pumping, piping, or filtering for analysis. It uses solid state ion selective electrodes for an accurate measurement and because of its simple design, requires minimal maintenance. Solutions are non-hazardous and come in easy-to-replace containers.
Myratek, Inc.
King of Prussia, PA
Tel: 610-265-8620
Web: www.myratek.com

Low range peroxide

Industrial Test Systems is pleased to announce a breakthrough in testing for Hydrogen Peroxide (H2O2), with the introduction of Sensafe™ Low Range Peroxide Check™. Using the company's patented aperture technology allows for detection levels of 0.05, 0.3, 0.5, 1.0, 2.0, and 4.0 ppm, all in a dip and read procedure. Simply dip the test strip into a 250ml (8 oz) water sample for 5 seconds, with constant back-and-forth motion, shake off the excess and view through the aperture to match to the closest color.
Industrial Test Systems Inc.
Rock Hill, SC
Tel: 800-861-9712

Bin activators

Metalfab, a manufacturer of dry solids processing equipment, offers a line of bin activators available in sizes from 2' to 16' in diameter. Each bin activator incorporates a dual baffle design that delivers continuous flow of dry materials without plugging, jamming or bridging. They also feature an endless beaded flexible sleeve 7/16'' thick with 3-ply reinforcement that will not puncture, slip or leak. Solid steel suspension arms are bolted at 90 degrees and can support up to 500,000 lbs each to ensure the activator remains attached to the bin and cannot move off center.
Metalfab Inc.
Vernon, NJ Web: www.metalfabinc.com

Submersible level transmitter

Mercoid has just released the new series SBLT submersible level transmitter for use in groundwater and well monitoring. The transmitter measures the height of liquid above its position in the tank referenced to atmospheric pressure. It consists of a bonded foil, strain gauge encased in an all-welded 316ss housing with PVC bullet polyurethane cable. Lightning and surge protection eliminates both power supply surges and ground strike transients. A ventilation tube in the cable automatically compensates for changes in atmospheric pressure above the tank and the vent is protected by a filter.
Mercoid, a Div. Of Dwyer
Instruments Inc.
Michigan City, IN
Tel: 219-879-8000
Web: www.dwyer-inst.com

Valve actuators

Badger Meter offers new higher thrust Research® EVA-100/200 electronic actuators. They offer four times the thrust available in the earlier EVA-1 actuators. The EVA-100/200 series actuators are microprocessor based stepper motor driven systems with the advantage of user changeable actuator settings. These actuators offer flexibility and ease of setup and can be used on all Research Control® valve models. The actuators have thrust outputs of 100 lbf and 200 lbf respectively.
Badger Meter, Inc.
Milwaukee, WI
Tel: 800-364-9876

PE pipe lining

Swagelining™ allows a new, tight-fitting polyethylene (PE) pipe to be placed inside new or existing pipelines. The system uses PE pipe which has an outside diameter slightly larger than the inside diameter of the pipe to be lined. After sections of PE are fused together to form a continuous pipe, the PE pipe is pulled through a reduction die, which temporarily reduces its diameter. This allows the PE pipe to be pulled through the existing pipeline.
Advantica Technologies, Inc.
Houston, TX
Tel: 713-622-0426
Web: www.swagelining.com

Automatic titrator

Hach has announced improvements to the AutoCAT 9000 amperometric titrator, which enable the instrument to analyze sulfite according to Standard Method 4500 SO32- B, in the 0-20 mg/L range. Additional improvements include a chlorine dioxide generator efficiency method, and a simplified time-saving screening method for chlorite. The titrator is capable of measuring ppb levels of total residual chlorine (TRC), and assures compliance with NPDES and sulfite method regulations. In addition, when used to optimize the dechlorination process, the instrument can help deliver significant cost savings. Drinking water treatments plants that use chlorine dioxide will be able to optimize their process using the new chlorine dioxide generator efficiency method, and be able to quickly screen for chlorite, resulting in higher regulatory compliance and cost savings.
Hach Co.
Loveland, CO.
Tel: 970-669-3050
Web: www.hach.com