1,3-Dihydroxy acetone as an oxygen scavenger for water

4-alkyl and aryl semicarbazides as oxygen scavengers

Abatement of hydrogen sulfide with epoxides

Abrasion-resistant carrier catalyst

Active carbon materials, process for the preparation thereof and

Additive dispersing filter and method of making

Adjuvant for the filtration of liquids and its use for...

Aerator

Aerator apparatus

Aldehyde treatment system

Algacide and method for treatment of water

Algicidal or algistatic compositions containing quaternary ammon

Alkylamines as biofilm deactivation agents

Ambient temperature destruction of PCB wastes

Amine/gallic acid blends as oxygen scavengers

Ammonia removal

Anti-bacteria agent made from shell, and methods for...

Anti-biofilm forming structure and method of manufacturing...

Anti-biofilm forming structure and method of manufacturing...

Anticarcinogen additive for water supplies