Environmental Treatment Systems, Inc. (ETS) is a full-service environmental company primarily serving the industrial wastewater market. We provide custom-engineered solutions for clients, including wastewater treatment systems, engineering, and testing. Our systems and services include our own line of dissolved air flotation (DAF) systems, physical-chemical treatment systems, and aerobic and anaerobic biological treatment systems. We provide service and support from the initial identification of a wastewater problem through design, installation, and support.

About Us


ETS was incorporated in 1987 at its first offices at the Advanced Technology Development Center (ATDC) at the Georgia Institute of Technology. The Principals of ETS, G. Edward (Edd) Valentine, Jr. and Charles C. Ross, P.E., have extensive experience and knowledge related to the design and installation of industrial wastewater treatment systems. Both were members of the Research Faculty of the Georgia Tech Research Institute for over thirteen years, where they were involved in environmental research and education. ETS became a graduate member of ATDC in 1995 and moved its offices to  Smyrna, Georgia. Today, ETS is located in Acworth, Georgia, and has a full-time staff of two principals plus eight other design and support staff. ETS prides itself in providing quality, cost-effective environmental systems and services.

Client Base
ETS has provided systems and services to over 220 industrial clients in over 300 successfully-completed projects, in the following industries:

  • Prepared foods
  • Meat and poultry processing
  • Dairy
  • Beverages
  • Fruit and vegetable processing
  • Confectionery
  • Mining
  • Pulp and paper
  • Chemicals
  • Agriculture
  • Textiles
  • Laundry
  • Electronics

Many of these clients are repeat customers who also provide referrals to new contacts. ETS encourages all prospective clients to evaluate our experience and to contact past clients for references.


Activated Sludge

The activated sludge process is a biological wastewater treatment process that uses microorganisms, including bacteria, fungi, and protozoa, to speed up decomposition of organic matter. Activated sludge is an aerobic process requiring oxygen for treatment. As the microorganisms grow and reproduce, waste materials are removed.

Dissolved Air Flotation (DAF) Systems

Dissolved Air Flotation (DAF) is well-suited for liquid-solid separation in many industries, as well as for separation of free oils and greases.



ETS engineers can provide permitting services for industrial wastewater discharges, both for direct and indirect dischargers. ETS has relations with regulators in many states and localities and can help its clients maneuver through the regulations to negotiate permits that benefit both the client and the environment.

Turnkey Systems

A turnkey system is a system which is designed, specified, purchased, installed, and started up by a single company. Turnkey systems are built in the 'design-build' style of contracting, as opposed to the traditional 'design-bid-build' style of contracting in which the Owner contracts out the design and installation/construction himself while procuring all of the equipment.


Company details

Business Type:
Services - Consulting & Engineering

Industry Type:
Water and Wastewater

Market Focus:
Globally (various continents)


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