Sequencing Batch Reactors for Wastewater Treatment

Customer:
Fluidyne Corporation
2816 W. First Street
Cedar Falls, IA 50613
319/266-9967 Phone

Project Size:
$5,000 to $100,000.00

Process Description
Fluidyne is an OEM supplier of Sequencing Batch Reactors (SBR) to the wastewater treatment industry. SBR's are used to treat municipal and industrial wastes. The system operates as follows: during fill/react, the system is circulating the wastewater and injecting air. After a predetermined time, the system goes into settle, (i.e. no mixing and no air). The clean supernatant fluid is then decanted from the tank and usually sent to a chlorine contact system. After decant, a waste sludge pump drains off heavier solids and usually sends them to a digester. Fluidyne sells their products throughout the world. FEC Technologies has been their control system supplier since 1987.

Project Description
FEC Technologies has supplied controls to Fluidyne for over 10 years. There are over 80 Fluidyne systems in operation with FEC controls in the US, Mexico and Canada, ranging in size from 6000 gpd to 4 mgd in 1 to 4 tanks. From a simple mechanical description, FEC will design, manufacture, program and functionally test each system. Below is a partial installation list.

Quebecamp, Canada	6000 gpd	Whidbey Island, WA	.85 mgd
Loretto, PA	.2 mgd	Livingston, TN	1.8 mgd
Salinas, CA	.3 mgd	Smithville, TN	2.2 mgd
Pineville, WV	.4 mgd	Auburndale, FL	3 mgd
Homer City, PA	.65 mgd	Walterboro, SC	3 mgd
Mulberry, FL	.75 mgd	Bartow, FL	4 mgd
Cascade Ranch, CA	25,000 gpd	Tagatay, Philippines	.52 mgd
Beckley, WV	3 mgd	Hilliard, FL	.33 mgd
Chiefland, FL	.47 mgd	Blacks Ford	1 mgd

System Components
A typical system consists of:

• Allen Bradley SLC 500 PLC
• Operator interface keypad
• Selector switches and indicating lights
• Pump and blower motor starters
• Seal fail relays
• Plug in relays

In some cases an HMI computer,  is provided as part of FEC's scope of supply.