WASTEWATER TREATMENT

WATER TREATMENT

ENVIRONMENTAL

INDUSTRIAL



WASTEWATER TREATMENT

Town of Thomaston
WPCF Upgrade
Automation
Thomaston, CT
Furnished and installed a plant wide Distributed Control System utilizing A-B Ethernet Processors and a fiber optic hub network. Process control included inlet works operations, primary sludge pumping, primary effluent and SBR control, and waste sludge processing. Set up remote telemetry communications between four pump station PLCs and master RTU at plant for monitoring operations. Equipment used: A-B SLC 500 PLC's, FIX Intellution SCADA software, Operator 10 Reporting Software.


Town of Groton Plant
SCADA System
Groton, CT
Furnished and installed a plantwide Distributed Control System. Included fabrication and programming of three RTU's communicating on a fiber optic Ethernet highway. Programs included Influent Pump Control, Aeration Blower Control, RAS, WAS, and chemical feed operations. Equipment used: Fischer-Rosemount Delta V and FIX Intellution. Used digital camera images to represent plant areas, linked to process graphic displays.


Town of Greenfield
WPCF Upgrade
Greenfield, MA
Furnished and installed plant Distributed Control System using fiber-optic network between operational buildings. Paced trickling filter speeds with influent flow for optimum contact, maintained level in Primary Effluent wetwells by communication to variable frequency driver. Paced chlorine metering pumps for disinfection and sodium bisulfate pumps for dechlorination. Equipment used: Bristol Babcock DPC 3330 and FIX Intellution SCADA Software.


City of Bridgeport
East and West
Side WWTP
DeNitrification
Bridgeport, CT
Furnish Instrumentation and Control System for Automation of East and West Plants automated Aeration Control System. Implemented most open valve logic of six tanks, 3 passes per tank for deinitrification and dissolved oxygen control. Used GE 90-30 controllers with genius bus operator interfaces. Incorporated control system into GE Complicity HMI software monitoring system.


City of New Haven
Boulevard and East Street Pump Station
New Haven, CT
Furnished and installed new Instrumentation and Control System for 100 GD pump stations. Facilities included pre-treatment screening, grit removal, conveyor transports and constant level pumping with 400 HP variable frequency drives, Station communication and remote control to main treatment plant via dedicated modem. HMI computer configured using Wonderwave interfaced to Modicon Momentum controller network.


City of New Haven
East Shore WWTP
Plant Automation
New Haven, CT
Furnished Aeration Control Panel to reduce nitrogen loading in effluent with use of Siemens PLC SCADA system. Provided field instruments to monitor dissolved oxygen in tanks, blower header pressures, flows and current loading. Supplied PLC Control Panel, wiring diagrams, start up and training.
Equipment used: Siemens 505 PLC's and Wonderwave HMI software


  Odor Control Improvements. Furnished Area Control Panel and tied into plant SCADA fiber-optic network for communications with the plant Wonderware monitoring software. Configured field instruments for scrubber flow, pH, and ORP control.


Litchfield WWTP
Denitrification
Radio SCADA System
Litchfield, CT
Provided SCADA System comprising of Modicon Compact PLC RTU's networked by radio communications. System represented on IBM PC utilizing FIX Intellution HMI software. Provided all variable frequency drives for plant equipment, controlled via modbus communications.


Bedford Hills Corrections
WWTP Upgrade
Radio SCADA System
Bedford Hills, NY
Furnished plant wide radio SCADA system for monitoring of building operations. Furnished control panels and variable frequency drives for controlling pump operations throughout plant. Equipment used: A-B SLC 500, Panelview Operator Interfaces and MDS radios.


City of Milford
Beaver Brook WWTP
Process Improvements
And DCS System
Milford, CT
Furnished complete PLC based SCADA system for control of plant using Intellution FIX MMI software. Provided field instruments and controls for flow pacing of RAS pumps and chlorine disinfection. Customized programs for Preventative Maintenance and Plant Operating/Reporting Software. Provided Variable Frequency Drive Panels for denitrification control at the Housatonic Plant.



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WATER TREATMENT

Middletown Water
Roth Filter Plant
Redundant Control Upgrade
Middletown, CT
Furnished and installed redundant process controller system for operation of pressure filter water treatment facility. Operations include chemical feed pacing, filter backwash operation, distributed network communications and SCADA HMI interface. Equipment used: Bristol Babcock DPC 3330 controllers, Genesis 32 HMI software.


City of New Britain
Booster Station
Automation Upgrade
New Britain, CT
Furnished Main Pump Control Panel to maintain hi service tank level elevations using GE90-30 PLC. Installed telemetry network for distribution system to monitor pressures, flows and alarms.


Town of Southington
Water Pump Station
Control and Telemetry
Southington, CT
Designed and fabricated Pump Control Panels for operating booster pumps based on tank level via tone telemetry. Also provided remote telemetry panels for monitoring alarm and pump operation at main treatment plant.



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ENVIRONMENTAL

Textron Lycoming Oil
Abatement
DCS Storm System and
Effluent Treatment
Stratford, CT
Furnished and installed a turnkey Supervisory Control and Data Acquisition System for the collection and treatment of waste by product streams from seven pump houses. Project included the fabrication of six remote SCADA panels for process control and data collection. One central station collected all data and monitored the individuals processes. The central monitor represented all six sites with live data and provided for runtime totals, flow totals, and historical trending. Field equipment included a chemical feed system for a DAF treatment unit. On-line process analyzers for Copper, Oil, pH, and Turbidity were supplied and commissioned.
Equipment used: Bristol Babcock DDC3300 and Genesis HMI software.


American
Cyanamid Groundwater Remediation
Wallingford, CT
Furnished and installed a groundwater remediation control system for collection and treatment of organic contaminants. Control system monitored and controlled well pumps, metering pumps, injection pumps, receiver tanks, and separators. A GE Fanuc PLC was used for control and monitoring of the site.


Crystal Lake Condominium
Stripping Tower
Ledyard, CT
Furnished stripping tower control system to remove radon from the well field drinking water supply. System included controls for storage tank, transfer operation, stripping tower and hydropneumatic tank control.



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INDUSTRIAL

Cytec Industries
Reactor Train Control
Consoles
Wallingford, CT
Fabricated three control consoles for the control of two reactor trains. Eaton processors were used as the host computer for running Genesis control software. The project consisted of communications between remote PLC's, remote I/O panels and the Eaton processor. The panels also housed single loop controllers, membrane keypad, 3-button trackball, annunciators, and a UPS power system.


MOTT Metallurgical
Sintered Metal Furnace
Controls
Farmington, CT
Designed and fabricated main control panel to maintain temperatures in separate zones for five furnaces. Fabricated type R dual thermocouples for hi limit and temperature control in critical zones. Installed control panel and filed wiring to existing PLC's and heat contactors.


J. L. Lucas Machinery
Waterbury, CT
Provide PLC and CNC electrical controls for automation of dressing and grinding cycles for double disc grinding operations. Retrofit existing machines with state of the art servo motion controllers to maintain finish quality and size specifications. Furnish 460V control panels with starters, VFD's, operator interface stations, installation and programming of systems. Some customers include: Timken Bearing, Delphi Automotive, Parker Hannifen, Torrington Company.
A-B SLC 500 PLC's
GE Fanuc Powermate Controllers



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