|
|
Services Provided
ü Waste Processing and Treatment
ü Waste Retrieval
ü Waste Management &
Minimization
ü Tank Decontamination
Technologies Used
ü Centrifuge: 3-Phase Separation
ü Filter Press Dewatering
ü Chemical Pretreatment
ü Flocculation and Sedimentation
ü Bio-degasing for Tank Waste
Retrieval
ü Thermo Tank-Degassification
ü DAF Oil-Water-Sludge Separation
Relevance
ü Tank Sludge
ü Hazardous, Refinery
ü Turn-Key Remedial Operation
ü Commercial Client
ü Integrated Safety Management
ü Level B PPE
Accomplishment
ü Innovative tank waste retrieval
ü Effective application of waste
processing technologies
|
Title: Tank Waste Retrieval, Tank Cleaning, and Waste Sludge Processing
Client: ARCO Refinery
Long Beach, California
Under this contract, ETAS retrieved the contents from two 10,000-gallon refinery waste storage tanks; separated the
oil, water, and sludge; and provided on-site wastewater treatment operations and sludge processing services. Prior to waste retrieval, the tanks had to be degassed.
Innovative bio-degassing technology was used successfully, along with the traditional method of using a Weeco single engine internal combustion unit, providing
significant cost savings. After degassing, the tank wastes were retrieved and separated by physical-chemical methods: a polymer was added, and a 3-phase Alfa-Laval
418 Centrifuge was used to separate the oil-water-solids. The wastewater was treated with a polymer, pH adjusted, and aerated using a dissolved air flotation (DAF) and
flocculation sedimentation processes. Finally, a trailer-mounted filter press system was used to dewater the sludge. The entire on-site turn-key operation was
conducted by ETAS Corporation, using our own or leased equipment, our own operators and work crew, with the support of our scientific and engineering staff.
|
