Alcoa Inc.

Corporate Environmental Solutions LLC

Kleantu LLC

Robin L Weightman

John R Smith

Andrew C Middleton

Rajat S Ghosh

Jaw K Fu

Jonell Kerkhoff

Kevin Kitzman

Dennis L Fulmer

Robert C Horger

John Pearson Smith

Aniruddha Bhattacharyya

Peter Goodale

Robert Horger

Ron Keffer

Richard Donahue

Aniruddha Bhattachayya

Rajat Ghosh

A septic tank system includes a multiple compartmented (or chambered) supplemental tank. The supplemental tank has a cover/lid with a plurality of strategically situated access holes (both small and large ports) for servicing the various chambers from above ground.

Multiple chamber septic tank with a plurality of large and small access ports

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.

Methods for polishing wastewater utilizing a bed of commingled bauxite residue and iron filings

Systems for polishing wastewater utilizing natural media filtration

Growing community of inventors

Murrysville, PA, United States of America

Robin L Weightman