Project Name:
Waste Management – Bethel Landfill
Location:
Hampton, VA USA
Type of Plant:
Leachate
Technology Used:
Biowater CFIC® Process
Biomedia Used:
Biowater BWT-X®
Operational Since:
February 2014
The Challenge
Waste Management owns and operates a municipal landfill which contains leachate contaminated with organic solvents. Discharge permit for the site requires methyl ethyl ketone (MEK) concentration less than 0.75mg/L.
The Design
Biowater’s biofilm CFIC® Process has been implemented for the biological degradation of organics. The Biofilm reactor may be operated in two modes: 1. Complete Mix Fixed Film (CMFF®) and 2. Continuous Flow Intermittent Cleaning (CFIC®). Currently, the discharge does not have to meet a suspended solids limitation. In the event that solids must be clarified, the Biofilm reactor will be operated as a CFIC® process, as it provides treatment and solids capture within the biofilm reactor.
| Parameter | Azverage day conditions |
| Design Flow (Process) | <=10,000 gallons per day |
| BOD5 | <=500mg/L |
| MEK | <=5mg/L |
| Site elevation | 100 ft. AMSL, presumed |
| WW temperature | 0-30˚C |
Achievements
Biowater’s biofilm process was successfully started up in mid-February 2014. Performance testing was a success, and the system meets the effluent design criteria. Actual effluent MEK concentration is below the detection level of 0.2mg/L.
| Parameter | Limit/target | Actual |
| MEK | <0.75 mg/L | <0.20 mg/L |
| Acetone | n/a | 1.00 mg/L |
| COD | n/a | 1,200 mg/L |
| BOD | n/a | 60 mg/L |