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Napier-Reid Ltd. 
10 Alden Road, Unit 2,
Markham, Ontario L3R2S1,
Tel: (905) 475 1545
Fax: (905) 475 2021
Home > Projects> Ayr, Ontario, Canada, Iron - Manganese Removal Filter 

Ayr, Ontario, Canada, Iron - Manganese Removal Filter

Project Summary:

Project Type:

Design, Build and Service

Project Category:

Municipal Drinking Water

Project Purpose:

to remove iron and manganese
Design Flow: 173 Cubic Metres/day
Year of completion: 2005

Full Description:
Napier-Reid: Ayr WTP

Pressure Filters in Ayr WTP, Ontario, Canada
Once again, Napier-Reid provided a pressure filtration system for Ayr Water Treatment Plant (WTP) to remove iron and manganese in the drinking water for the community of Ayr, Ontario, Canada.

The Ayr WTP has two Napier-Reid pressure filters installed in 1996. In 2004, the community entrusted the consulting engineers, Earth Tech Canada Ltd., to expand the WTP with maximum capacity of 230 m3/day and average capacity of 173 m3/day using underground well water. The design flow needs to be achieved operating 3 out of 4 pressure filters.

The Treatment Process
Napier-Reid was awarded the contract again to provide this pressure filtration system. Two new pressure filters were supplied; each filter consists of a carbon steel pressure vessel for a design working pressure of 1290kpa, filter media composed of gravel subfill, MD-80 (for iron and manganese removal) and anthracite, process control valves, level switches, differential pressure transmitters and magnetic flowmeters.

Additionally, we updated the two existing pressure filters with the new filter media, valves and flowmeters. We also supplied a new common PLC control panel to control the four filters.

Average Flow: 173 m3/day
Maximum Flow: 230 m3/day


Effluent (specified)

Iron (mg/L)



Manganese (mg/L)



Colour (TCU)



Turbidity (NTU)



This plant has been successfully operating, providing water that complies with the Ontario Safe Drinking Water Act standards for iron and manganese removal.

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