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Oldcastle Precast® Decentralized Wastewater Systems
Featuring patented Algaewheel® technology

Case Study - Bailey’s Discount Center

 

     
Project: Bailey’s Discount Center Bacpac wastewaster system
  North Judson, IN
   
System Type: Bacpac Pre-treatment System
   
   
Discharge Type: Absorption Field with Chambers
   
   
Installation Date: March 2007
   
   
Contractor: Algaewheel, Inc.
Bacpac Pre-treatment System
   
   
Regulatory Agency Indiana State Department of Health
  Indiana, IN
   
Design Flow Specs: Flow Rate: 3600 gpd
  No. of bacpacs: 4
   
   

Project Background

Bacpac Pre-treatment SystemIn the fall of 2006, Bailey’s Discount Center chose to proceed with a bacpac wastewater system to replace the existing failed system at their facility.  The facility is a discount shopping market with a fast food restaurant.  Due to the restaurant kitchen facilities, a portion of the wastewater will be high-strength.  The high strength waste and the peak peak surges during busy weekend operations are the reasons why the existing mound system failed.

The purpose of the new system was to replace the failed system, while at the same time pretreating the wastewater to reduce the waste strength and protect the discharge field.

The new system was designed to handle 3100 gallons per day of typical domestic waste and 500 gallons per day of high strength waste.

In order to reduce costs, the 2000 gallon septic tank and dosing tank were left in place to perform some pretreatment.  The dosing tank would pump wastewater to the new system instead of the old mound disposal field.

   

System Description:

Bacpac Pre-treatment SystemThe new system was comprised of a 1500 gallon equalization tank, (2) new 4000 gallon septic tanks, (4) Algaewheel bacpac treatment units on top of the septic tanks, a 2500 gallon dosing tank, and a gravel absorption field with 10 plastic chamber laterals at 120’ long.   The equalization tank provided equalized flow through the system over the course of 24 hours.  The bacpac treatment units performed nutrient removal and primary solids digestion.  The septic tanks provided solids removal, anaerobic digestion of the solids, and nitrate conversion to nitrogen gas.  The dosing tank provided time dosing to the new absorption field for final treatment. 

Installation:

The new system was installed in March of 2007.  The system is performing well as evidenced by period effluent testing, and is consistently reducing the abnormally high waste strength to acceptable limits prior to discharge to the absorption field.

   
 

   
   
 

 


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