California Institute of Technology

Clement A Cid

Michael R Hoffmann

Michael R Hoffman

Cody E Finke

Asghar Aryanfar

Kangwoo Cho

Anastasia K Hanan

Donald Harvey Pinkston, Iii

Michael Christopher Vanier

Daejung Kwon

Yan Qu

A wastewater treatment system and method for remediating wastewater and human waste that is self-contained and that has no connection to a municipal wastewater system and no connection to an electrical grid. The domestic toilet and wastewater treatment system can be powered by a photovoltaic panel as a source of electricity. The system includes an electrochemical cell that allows a waste stream to be disinfected in a few hours to a condition where no viable bacterial colonies can be cultured. The system produces a liquid stream that is suitable for system flushing or for uses in which non-potable water is acceptable. The system can generate hydrogen as a product that can be used to generate power. The system can generate nitrate, urea, ammonia and phosphate for use as fertilizer. The disinfected residual organic solids are also completely disinfected for potential use as an organic soil amendment for agriculture.

Self-contained, PV-powered domestic toilet and wastewater treatment system

A self-diagnostic maintenance system for wastewater treatment employs unique environmental sensor configurations to link operational states of a water treatment system with unique failure modes of the system. Upon detection of failure modes, the maintenance system alerts users and operators via a short messaging service (SMS) of the problem, and can display step-by-step pictorial repair instructions for the operator to replace broken or malfunctioning parts, without the operator needing to diagnosis the problem or understand the detailed workings of the wastewater treatment system.

Maintenance self-diagnosis and guide for a self-contained wastewater treatment system

Growing community of inventors

Pasadena, CA, United States of America

Clement A Cid