Unit for treating water by ozonation, and corresponding...

Unitary tank for either, the primary, or both the primary...

Universal chlorinator module

Universal method and apparatus for conversion of volatile...

Universal recycled wash water system

Up-flow multi-stage anaerobic reactor(umar)

Upflow filter construction and method

Upflow-downflow sorption process and apparatus

Upward-flow manganese contact column

Use of acrylic acid/sodium vinyl-sulfonate copolymers as...

Use of an adsorbent for the removal of liquid, gaseous...

Use of an anode for elimination or reduction of microbial...

Use of biodegradable polymers in preventing corrosion and...

Use of biodegradable polymers in preventing scale build up

Use of blow down water in a cooling tower

Use of carboxylic acid/sulfonic acid copolymers as aluminum...

Use of cerium salts to inhibit manganese deposition in water...

Use of chelating agents in water desalination

Use of control matrix for cooling water systems control

Use of copolymers containing alkylene oxide units as an...