Water and Wastewater Treatment

Freese and Nichols provides services in Water Purification and Resource Recovery – also known as Water/Wastewater Treatment – for municipal, state and federal clients across the southeast United States. We regularly serve as program manager or design consultant for water and wastewater treatment projects resulting in multi-billions of gallons per day in total treatment capacity for our clients. We lead planning studies and plant designs, as well as provide construction phase and startup/commissioning services for advanced water, wastewater and water reuse treatment systems.

Our practice is built on a legacy dating to 1894, when treatment was one of the original services offered by our firm’s founder, Maj. John Hawley. Today, our nationally recognized experts offer broad experience in process innovation and design for water and wastewater treatment, with a commitment to quality and client service.

A partial list of our treatment service offerings is provided below.

Specific Services

Water Purification (Water Treatment)

Indirect/direct potable reuse for water supply augmentation
Brackish groundwater and seawater desalination
Conventional groundwater treatment
Conventional and advanced surface water treatment
Energy use optimization for membrane systems
Membrane filtration
Chlorine, chloramine, ozone and UV disinfection
Chemical optimization

Disinfection byproduct control
Distribution system water quality
Lead and copper rule compliance
Enhanced coagulation and sedimentation
Chemical feed and scrubbers
Softening, lime addition and recarbonation
Taste and odor control
Water supply and source water protection
PFAS treatment

Resource Recovery (Wastewater Treatment)

Water reclamation and reuse
Conventional activated sludge and high rate activated sludge systems
Integrated film-activated sludge (IFAS), moving bed biofilm reactors (MBBR) and membrane aerated bioreactors (MABR)
Biological and chemical phosphorus removal
Ammonia nitrification
Total nitrogen removal
Headworks, coarse and fine screening, and grit removal
Wastewater pumping systems
Primary clarification and high-rate primary treatment
Chemically enhanced primary treatment
Secondary clarification