Aptwater Inc.

Zeneca Limited

Mcwong Environmental Technology

David D Friese

Charles J Borg

Tyze-Kuan Tim Yin

Raymond Vincent Jones

Alan John Whitton

Alexander P Fung

Jennifer Ann White

Ryan S Overstreet

John Desmond Hunt

Alastair Lain Stewart

Erwin Michael Seidel

A disclosed piping manifold for providing pulsating flow includes an outer tubular member extending along a longitudinal axis. The outer tubular member includes a plurality of outer radial openings. An inner tubular member is positionable within the outer tubular member and rotatable about the longitudinal axis. The inner tubular member includes a plurality of inner radial openings, an inlet port configured to receive a fluid, and a lumen providing a fluidic pathway between the plurality of inner radial openings and the inlet port. Rotation of the inner tubular member about the longitudinal axis is configured to periodically bring the plurality of inner radial openings in and out of registration with the plurality of outer radial openings to provide a plurality of pulsating flows of the fluid out of the outer radial openings.

Piping manifold for pulsating flow

A module for use in a membrane biofilm reactor is described, and systems comprising such modules are described. The module comprises a fabric formed from a sheet of hollow-fiber membranes and a spacer material situated between adjacent membrane sheets, which are wound around a central core tube in the module.

Modules for use in and operation of a membrane biofilm reactor with reduced biofouling

Compositions and methods for the removal of selenium species from water containing high-salt concentrations and/or petroleum contaminants are described. The compositions and methods use a selenium-reducing microorganism adapted to adverse environments.

Removal of selenium in contaminated wastewater streams

A process for the preparation of 2-hydroxy-6-trifluoromethylpyridine which comprises reacting 2-fluoro-6-trifluomethylpyridine or a mixture of 2-fluoro-6-trifluoromethylpyridine and 2-chloro-6-trifluoromethylpyridine with an alkali metal hydroxide at a temperature of from 50.degree. C. to 160.degree. C. and acidifying the product so formed.

Chemical process

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Orinda, CA, United States of America

David D Friese