Tangent Company LLC

Adam Joseph Arnold

Brendan James Matheny

Lyle Edward Kirman

William C Prior

David Francis Rath

James E Bolton

Travis Genshock

Glenn Graff

John Merrin

Kevin J Elliott

Paul Wadham

David Alan Barski

Ray Allen Lillback

Process steps for monitoring the performance of a wastewater treatment system having a series of filtration units and optionally one or more disinfection units, controlling the operation of the filtration units, and controlling the operation of one or more maintenance operations that can be performed on the filtration units as a result of the monitoring. The wastewater treatment system can be operated without breaking pressure between the filtration units. Monitoring the performance of the wastewater treatment system can include using the water quality at various points in the system as an indicator of clogging or integrity issues within the filtration units. Sensors can be configured to measure properties of wastewater both upstream and downstream of each filtration unit, and the measured properties can be used to determine whether the filtration unit is performing adequately.

Control process for wastewater treatment system

A filtration unit for purifying or treating fluid that includes one or more membrane units having a permeate section. The permeate section of the membrane units is fed fluid that passes through a sealing insert having a fluid inlet and a passage that discharges in fluid communication with the permeate section. The sealing insert is arranged in a support frame of the membrane unit to form a fluid channel for delivering fluid through the insert and along an outer perimeter surface that maintains performance of the membrane unit during operation.

Filtration unit

A tank is disclosed as having a tub therein that divides the volume of the tank into an anoxic chamber inside the tub and an equalization chamber outside of the tub. The anoxic chamber anoxically treats wastewater while the equalization chamber equalizes fluctuations in wastewater influent as well as provides a holding space for wastewater if power to the tank is cut off. The tank can be part of a system for treating wastewater, such as one with an anaerobic tank having an anaerobic chamber for anaerobically treating wastewater, an aerobic/filtration tank having a filtration sub-tank therein that divides the volume of the tank into a filtration chamber inside the sub-tank and an aerobic chamber outside of the sub-tank. The aerobic chamber can aerobically treat wastewater while the filtration chamber has a membrane unit for filtering wastewater.

Home sewage treatment system

A wastewater treatment system includes a biological reactor having anaerobic, anoxic, and aerobic chambers. A lift station including a pump is operatively connected to a tertiary filter downstream of the biological reactor. The lift station receives biologically treated liquid from the tertiary filter and pumps the liquid from the lift station. A filtration subsystem is operatively connected to the lift station. The filtration subsystem receives and filters the liquid pumped by the lift station. The filtration subsystem includes a preliminary filter and a salt-rejecting membrane filter having a recycle conduit operatively connected to recirculate salt-rejecting membrane filter, thereby forming a salt concentration loop between biological reactor and the salt-rejecting membrane filter. A post-filtration subsystem is operatively connected to receive salt-rejecting membrane filter permeate, and includes an adsorbent and oxidation system.

Biological wastewater treatment system containing a salt-rejecting membrane filter and recycle conduit

A wastewater recycling system includes a biological reactor having anaerobic, anoxic, and aerobic chambers. A lift station including a pump is operatively connected to the biological reactor. The lift station receives biologically treated liquid from the biological reactor and pumps the liquid from the lift station. A filtration subsystem is operatively connected to the lift station. The filtration subsystem receives and filters the liquid pumped by the lift station. The filtration subsystem includes a salt-rejecting membrane filter comprising a concentrate recirculation conduit operatively connected to recirculate salt-rejecting membrane filter concentrate to a point along the wastewater recycling system upstream of the salt-rejecting membrane filter, thereby forming a salt concentration loop between said point along the wastewater recycling system and the salt-rejecting membrane filter. A post-filtration subsystem is operatively connected to receive salt-rejecting membrane filter permeate, and comprises a water disinfection system that disinfects the permeate thereby generating potable water.

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Aurora, OH, United States of America

Adam Joseph Arnold