ozone drinking water system
DESCRIPTION
OZONE DRINKING WATER SYSTEM. CONTENTS Properties of Ozone Production of Ozone Water Treatment Plant – 25 m 3 /hr Ozone Generation System. OZONEOXYGENCHLORINE O 3 O 2 CI 2 . UNSTABLE STABLE STABLE. PROPERTIES OF OZONE - PowerPoint PPT PresentationTRANSCRIPT
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OZONE DRINKING WATER SYSTEM
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CONTENTS
• Properties of Ozone
• Production of Ozone
• Water Treatment Plant – 25 m3/hr
• Ozone Generation System
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OZONE OXYGEN CHLORINE
O3 O2 CI2
UNSTABLE STABLE STABLE
PROPERTIES OF OZONE
• Heavier than the air.
• Irritating pale blue gas.
• Very reactive and unstable.
• Explosive and toxic, even at low concentrations.
• 14 times more soluble than oxygen.
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PRODUCTION OF OZONE
• Electrolytic and chemical reactions.
• Exposing oxygen molecules to UV radiation at 185 nm wavelength.
• Corona discharge.
• Cold plasma method, pure oxygen gas is exposed to plasma created by
dielectric barrier discharge.
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+
+e-
OZONE PRODUCED BY CORONA DISCHARGE
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PLANT SETUP - 25 M3/HR
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COMPRESSOR
Function : Supplies minimum pressure required for ozone system - 3.5 Kg/cm2
Capacity : 410 LPM Max Pressure : 18 Kg/cm2
Air Compression : 6 (starts) – 9 (stops) Kg/cm2
Safety Valve : 10 Kg/cm2
• Removal of water (moisture content).• Check safety valve pressure adjustment.
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FILTERS (Air Filter and Oil Filter)
Function : Protects the ozone system from dust, moisture and oil due to high voltage.
Max Pressure : 11 Kg/cm2
Working Pressure : 6 – 9 Kg/cm2
• Cleaning and removal of moisture content, dust particles everyday from the filters.• Checking of filter efficiency.
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OXYGEN GENERATOR
Function : Removal of moisture and nitrogen.
Max Pressure : 11 Kg/cm2
Working Pressure : 5 Kg/cm2
Media in each : Silica Gel – Absorbs Moisture & Molecular Sieves – Absorbs NitrogenEach cycle time : One column working, another in regeneration at intervals 3 – 4 minsSolenoid Valve : Pressure detection for regeneration and draining point for nitrogen.
• Installing the generator in the correct direction of flow.• If Media in the indicator filter turns to white then the media in generator columns needs to be
replaced.
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SURGE TANK
Function : Builds and maintains uniform pressure of oxygen for ozone generation.
Max Pressure : 10.5 Kg/cm2
Safety Valve : 10 Kg/cm2
Outlet Pressure : 3.5 Kg/cm2
• Installing the tank in the correct direction of flow.
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OZONE CONTROL PANEL
Function : Controls the flow, pressure of oxygen and current to the ozone system.
Pressure Regulator : Maintains constant pressure at 3.5 Kg/cm2.Flow Regulator : Maximum flow 150 LPMPower Control : Maximum current 5 A.
Timer : Set to 15 mins for flushing the cells at the start of the system.Oxygen Flow Switch : Connected to power supply to switch of the system when the flow is
less.
• Flushing• Oil Coolant for transformer.
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OZONE GENERATOR
Function : Production of Ozone.
No. of Dielectric cells : 7 Nos. (6 circular and 1 in center)Voltage : 8000 - 10000 V Maximum Capacity : 100 gm/hr.
• Check the water recirculation system every time.
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FILTER FEED PUMPS
No. of Pumps : 1 W + 1 S Type of Pumps : Mono blocks Capacity : 35 m3/hr @ 25 m Head
• After installation of pumps, direction of rotation of motor should be in accordance to flow.
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FILTERS (PSF & ACF)
Dimensions : 2.0 m H x 1.20 m DiaTest Pressure : 11 Kg/cm2
Multiport Valves : Filtration, Backwash, Rinse, Recirculation, Waste, Closed & Pressure gauge
• Backwash is necessary when the pressure gauge reading increases by approx 2 Kg/cm2.• When operating multiport valves, pumps need to be switched off.
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BOOSTER PUMP
No. of Pumps : 1 WType of Pump : Mono block, SSCapacity : 25 m3/hr @ 10 m HeadRecirculation : 5 m3/hr
• After installation of pump, direction of rotation of motor needs to be checked.• Ensure that recirculation of water to the ozone system.
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CONTACT SYSTEM
Venturi : 2 Nos.Capacity : 15 m3/hrSequence : Convergent, Throat and DivergentMixing Tank : SS , 330 mm H x 300 mm Dia (20 L)
• Venturi to be installed in the correct direction as per the flow to create negative pressure.
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CONTACT CHAMBER
Dimensions : 1.75 m H x 0.95 m DiaVolume : 1250 LDetention time : 3 mins
• Diffusers are installed at the bottom of the inlet pipe to have a better mixing.• The Oxidation reduction potential is measured and displayed on the ORP panel.
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• Reactions take place several thousand times faster than those of chlorine and eliminates: Inorganic (iron, manganese, hydrogen sulphide, bromide) Organic (bacteria, viruses, protozoan’s )
• According to the U.S. Council Of Environmental Quality:
“Cancer risk among people drinking chlorinated water is 93% higher than among those whose water does not contain chlorine.”
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THANK YOU