Case Study: Dillard, Georgia USA

Project: City of Dillard

Location: Dillard, Georgia

Country: USA

Capacity: 200,000 GPD

Solution type: Secondary Wastewater Treatment

Technology used: Activated Sludge - Extended Aeration

Date of Installation: 2006

Extended Aeration TIPTON Packaged Wastewater Treatment Plant

Background: Challenges:

Solution: The final design comprised a 200,000 GPD extended aeration packaged wastewater treatment plant, treating domestic wastewater for the City of Dillard. Influent and effluent requirements for BOD:TSS was 250 mg/L:250 mg/L and 20 mg/L: 20 mg/L respectively. The plant was designed as a “triple-wide” tank system to fit the existing site. The existing packaged wastewater plant was converted to serve as the sludge holding chamber; new mechanical equipment was supplied and assembled inside this existing tank to complete the conversion. The 200,000 GPD extended aeration system comprises a total of three trains in a parallel attached configuration.

rwlwater.com

RWL Water has more than 90 years of combined experience building highly successful water, wastewater, and reuse treatment solutions for diverse industries and municipalities around the world.

New York, NY 767 Fifth Avenue, Suite 4200 New York, NY 10153 Tel. +1 212 572 5700

info@rwlwater.com • rwlwater.com

The 30 year-old TIPTON Packaged Wastewater Treatment Plant at this location needed to be upgraded to handle the increased flows from a growing city and to address new effluent discharge regulations. RWL Water engineers worked closely with project consultants to deploy a cost-effective design which combines existing tankage with new equipment.

The mountainous terrain posed special challenges for delivery of project components to the jobsite. The tight plant site offered minimal opportunity for routine expansion of the packaged wastewater plant volumes, hence special designs were needed. Offloading trucks, laydown space, as well as the sequence of system installation all proved to be challenging, requiring concise planning and staging of every aspect of the project.