The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 18, 2014
Filed:
May. 03, 2013
Alcoa Inc., Pittsburgh, PA (US);
Corporate Environmental Solutions Llc, Pittsburgh, PA (US);
John R. Smith, Pittsburgh, PA (US);
Jaw K. Fu, Murrysville, PA (US);
Rajat Ghosh, Pittsburgh, PA (US);
Kevin Kitzman, Wanatchee, WA (US);
Jonell Kerkhoff, Murrysville, PA (US);
Robert C. Horger, New Kensington, PA (US);
Dennis L. Fulmer, Greensburg, PA (US);
Aniruddha Bhattacharyya, Fairfax Station, VA (US);
Andrew C. Middleton, Mount Sidney, VA (US);
Robin L. Weightman, Murrysville, PA (US);
Alcoa Inc., Pittsburgh, PA (US);
Corporate Environmental Solutions LLC, Bridgeville, PA (US);
Abstract
Wastewater treatment systems, methods and apparatus for polishing a wastewater stream comprising a plurality of contaminants are provided. One system includes a vessel containing a plurality of natural media filtration agents selected to remove selected ones of the plurality of contaminants from the wastewater stream. In one embodiment, the vessel includes a bed of bauxite residue and at least one other natural media filtration agent. In another embodiment, the vessel includes a bed of compost and at least one other natural media filtration agent. The vessel includes a wastewater inlet that is in fluid communication with one or more of the natural media filtration agents. The vessel includes a wastewater outlet that is in fluid communication with one or more of the natural media filtration agents.