Corporate HDQ:

ETAS Corporation
2616 S. Loop W.
 (I-610 Freeway)
Suite 595
Houston, TX 77054

Office: (713) 569-5582
Fax: (713) 349-0683

 sales@etascorp.com

Physical/Chemical Technologies
    Centrifuge, Filter Press Dewatering:  Prj-000

Services Provided

Treatability, Pilot Testing

Technologies Used

Chemical Pretreatment
Microfiltration
Activated Carbon Absorption
Filter Press Dewatering

Relevance

Design-Build-Operate (Pilot Scale)
Wastewater Treatment System
Government Facility

Accomplishments

Successful pilot-scale treatability
    studies leading to full-scale design

Title: Operation of Chromium Precipitation, Micro-filtration, and Filter Press Systems

Client: NASA Johnson Space Center
Houston, Texas

ETAS Corporation was contracted to design a full-scale treatment system for treating waste streams resulting from photographic and electroplating operations to meet NPDES discharge criteria. To achieve project objectives, a 5 gpm pilot-scale wastewater treatment system was designed, fabricated, tested, and operated to perform pre-design treatability studies. This skid-mounted system consisted of a chemical precipitation reactor, a microfiltration unit, followed by activated carbon polishing, and a filter press for sludge dewatering. A total of 28 bench tests and 6 pilot treatability tests were performed to evaluate the conceptual design. The results confirmed that NASA's photographic and electroplating rinse water could be treated chemically followed by solid-liquid separation and sludge dewatering.  Based on the treatability study results, ETAS Corporation then developed the full-scale treatment system engineering designs, including all engineering drawings and specifications. The specifications described the general performance standards and provided a listing of equipment to be provided by sellers, equipment specifications, instrumentation and controls, skid structure, cleaning, painting, tests and inspection, shipment procedures, and QA/QC inspection procedures.

Accomplishments: ETAS Corporation successfully used bench-scale and pilot-scale treatability studies to design a full-scale waste treatment system for treating waste streams resulting from photographic and electroplating operations to meet NPDES discharge criteria.

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