WATER AND AIR PURIFICATION SYSTEMS COMPRISED IN WHOLE OR IN PART OF OZONE GENERATORS, MIXER, THERMOSTATS, AIR DRYER AND PREDRYER, PUMPS, FILTERS, FILTER SCREENS, CONTAINERS, ELECTRICAL CONTROL AND MONITORING DEVICES, AND BLOWERS, SOLD AS A UNIT

SEWAGE AND WATER TREATMENT EQUIPMENT APPARATUS COMPRISING A RESERVOIR FOR A BODY OF LIQUID, INFLUENT MEANS FOR INTRODUCING LIQUID INTO THE BODY, AIR DIFFUSERS WITHIN THE RESERVOIR AND CONTROL VALVES THEREFOR, SLUDGE REMOVAL MEANS, AERATION WELL AND DRIVE UNIT, BY MEANS OF WHICH APPARATUS SOLIDS ARE SETTLED OUT OF THE LIQUID BY SEDIMENTATION AND DURING AERATION