Treatment Plants
Hatch Mott MacDonald has a long history of experience in the design of new and upgraded water treatment facilities. Our knowledge of regulatory requirements and the impact on wide ranging water quality conditions allows us to deliver innovative solutions to complex water treatment problems.
HMM’s experience includes treatment of groundwater, surface water and seawater. HMM has particular strength in the rehabilitation and upgrading of existing water treatment facilities to meet new water quality standards and to increase plant capacity. From plant intakes and wells to residuals processing and treatment, HMM is qualified and experienced in all forms of water treatment.
Surface water treatment systems have included:
- Pilot testing of various treatment systems
- Conventional flocculation, sedimentation, and filtration
- High rate clarification
- Ballasted flocculation
- Plate and tube settlers
- DAF
- Conventional and high rate filtration using mixed media and GAC
- Membranes
- Microfiltration
- Ultrafiltration
- Nanofiltration
- Reverse osmosis
- Chemical storage and feed systems using all types of water treatment chemicals
- Ultraviolet light for disinfection and advanced oxidation
- Ozone
Groundwater treatment systems have included:
- Iron & Manganese using a variety of treatment methods
- Volatile organic chemicals using packed tower aeration, diffused bubble aeration and GAC
- Radium removal
- Ion exchange
- Hardness reduction
Residuals treatment systems have included:
- Gravity and high rate thickening
- Belt filter presses
- Centrifuges
- Plate and frame presses
- Supernatant recycle treatment
