[Class : 11] Apparatus For The Water Supply And Sanitary Purposes For Waste Water Treatment Effluent Treatment Plant And Sewage Treatment Plant For Treatment Of Industrial And Sewage Waste Water, Zero Liquid Discharge Plant For Complete Treatment And Recycle Of Industrial And Domestic Waste Water, Equalization Tank With Mixing Systems, Agitators For Mixing, Oil And Grease Separation Systems For Separation Of Oil From Waste Water, Flash Mixer Systems Along With Dosing For Coagulation, Primary Settling Tank With Scrapper Mechanism For Settling, Bioreactor With Aeration System For The Degradation Of The Organics, Secondary Settling Tank With Scrapper Mechanism For Settling, Scrapper Mechanism And Thickener Mechanism For Scrapping Of The Settled Sludge From Waste Water, Tertiary Treatment System Comprising Of Pressure Sand Filter And Activated Carbon Filter, Pre Treatment Systems/Ultra Filtration Systems/Reverse Osmosis Systems And Assembly For Waste Water Treatment, Apparatus For Air Purification Air Scrubbers, Apparatus For Heating, Drying And Steam Generation Multiple Effect Evaporators For Evaporation Of Water, Wastewater And Solvents, Agitated Thin Film Dryers For Drying