DYNATEC SYSTEMS, INC.
* MEMBRANE WASTEWATER TREATMENT SYSTEMS

PARKSON CORPORATION
* BIOLAC WAVE-OXIDATION LONG SLUDGE AGE ACTIVATED SLUDGE BNR PROCESS
* GEOREACTOR MOVING BED ROTATING BIOLOGICAL FIXED-FILM REACTORS
* LAMELLA INCLINED PLATE SETTLERS
* GLE OIL-WATER SEPARATORS
* DYNASAND CONTINUOUS UPFLOW SAND FILTER
* DYNADISC CLOTH MEDIA FILTER
* HELISIEVE ROTARY SCREW SCREEN
* DISCOSTRAINER ULTRA-FINE SCREEN
* ROTOSCREEN STEP SCREEN
* ROTOGUARD ROTARY DRUM PERFORATED SCREEN
* ROTOMESH ROTARY DRUM FABRIC MESH SCREEN
* ROTOSHEAR ROTARY DRUM WEDGEWIRE SCREEN

SPS ENGINEERING, INC.
* CLARIFIERS
* THICKENERS
* ANAEROBIC DIGESTER EQUIPMENT
* TRAVELLING BRIDGES
* ROTARY DISTRIBUTORS 
* FLOCCULATORS
* REPLACEMENT PRECISION-BEARING CLARIFIER AND THICKENER DRIVES