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Innovative Technological Solutions for Wastewater Treatment and Disposal.

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Presentation on theme: "Innovative Technological Solutions for Wastewater Treatment and Disposal."— Presentation transcript:

1 Innovative Technological Solutions for Wastewater Treatment and Disposal

2 “The significant problems we face today cannot be solved at the same level of thinking we were at when we created them” Albert Einstein

3 WASTE MANAGEMENT HIERARCHY  Cleaner Production / Waste Minimisation  Treatment  Reuse / Recover / Recycle  Disposal

4 Challenges Quality requirements Energy requirements Land requirements Operation and Maintenance

5

6 Advanced Biological Treatments Include  Membrane Bioreactor (MBR)  Sequential Batch Reactor (SBR)  Moving Bed Bioreactor (MBBR)  Pure Oxygen Technology  Biological Heavy Metal Removal ADVANCED BIOLOGICAL TREATMENTS

7 Typical Volumetric Loading and Removal Efficiency for Various Systems System Rate (kg BOD/m 3.d) Typical Loading Removal Efficiency (%) Complete Mix ASP0.3 – Extended Aeration0.1 – Membrane Bioreactor1.8 – Moving Bed Bioreactor1.0 – Sequencing Bioreactor0.1 – – 99 High Purity Oxygen

8 FLOW TO CONVENTIONAL ETP : 750 M 3 /HR (435 M 3 /HR DISCHARGED AFTER TREATMENT ALONGWITH 66 M 3 /HR OF RO REJECT) FLOW TO FILTRATION UNIT & UF : 315 M 3 /HR UF PERMEATE : 315 M 3 /HR (218 M 3 /HR IS SUBJECTED TO RO & 97 M 3 /HR IS BLENDED WITH RO PERMEATE & EVENTUALLY USED FOR COOLING TOWER MAKE UP) FLOW TO RO SYSTEM : 218 M 3 /HR RO PERMEATE RECOVERED : 152 M 3 /HR BLENDED WITH UF PERMEATE & USED AS COOLING WATER MAKE UP RO REJECT : 66 M 3 /HR IS DISCHARGED ALONGWITH BIOLOGICALLY TREATED WASTEWATER WATER RECOVERED = = 249 M 3 /HR USED AS COOLING TOWER MAKE UP REFINERY WASTEWATER BALANCE

9 DETAILS OF WASTEWATER TREATMENT - REFINERY PRIMARY TREATMENT TERTIARY TREATMENT - IS SUMP - FILTER FEED / CHLORINATION SUMP - SS SUMP - DMF & ACF - SURGE TANKS - HRSCC - SPLITTER BOX - MULTIGRADE FILTER - API - BASKET STRAINER - TPI - ULTRA FILTRATION - DAF - REVERSE OSMOSIS - CHEMICAL DOSING SYSTEMS - CHEMICAL DOSING SYSTEM SECONDARY TREATMENT - BIOTOWER FEED SUMP - BIOTOWER - AERATION TANK - SECONDARY CLARIFIER -GUARD POND -CHEMICAL DOSING SYSTEMS PRELIMINARY TREATMENT UNITS FOR SPENT CAUSTIC - SPENT CAUSTIC TANK, REACTION TANK, H 2 O 2 DOSING SYSTEM TREATMENT UNITS FOR COMBINED WASTEWATER

10 EMULSIONS PLANT- WATER BALANCE TOTAL WATER REQUIREMENT M 3 /DAY TOTAL EFFLUENT FROM PLANT FLOWING TO ETP -128 M 3 /DAY (Including reject from WTP RO) PERMEATE RECOVERED FROM ETP – 99 M 3 /DAY (87 M 3 /DAY USED AS WTP FEED & 12 M 3 /DAY USED AS BOILER MAKE UP) RO REJECT (28 M 3 /DAY) FROM ETP SUBJECTED TO EVPORATION (CONDENSATE RECOVERD : 28 M 3 /DAY USED AS WTP FEED) SOLID WASTE FROM ETP (1 M 3 /DAY) & RMS : 0.5 TPD (85% DRY SOLIDS) FOR LANDFILL LIQUID EFFLUENT DISCHARGE – ZERO WATER RECOVERED = 127 M 3 /DAY, 115 M 3 /DAY USED AS WTP FEED & 12 M 3 /DAY USED AS BOILER FEED FRESH RAW WATER REQUIREMENT M 3 /DAY

11 REJECT MANAGEMENT SYSTEM (RMS) WATER TREATMENT PLANT (WTP) WASTEWATER TREATMENT PLANT (WWTP) COOLING TOWER MAKE UP FLOOR WASH DOMESTIC PROCESS & UTILITIES 103 M 3 /D 88 M 3 /D 48 M 3 /D 10 M 3 /D 45 M 3 /D RO PERMEATE FOR UF BACKWASH BOILER & CT BLOWDOWN 15 M 3 /D 8 M 3 /D DOMESTIC EFFLUENT PROCESS EFFLUENT 55 M 3 /D RO REJECT PF BACKWASH MGF BACKWASH SOLIDS FOR DISPOSAL RO PERMEATE TO BOILER MAKEUP 12 M 3 /D 99 M 3 /D 87 M 3 /D RAW WATER FROM BOREWELL 126 M 3 /D RO PERMEATE TO SECURED LANDFILL 1M 3 /D DRY SLUDGE SLUDGE 25 M 3 /D 6 M 3 /D5 M 3 /D 3 M 3 /D RO REJECT 28 M 3 /D CONDENSATE 28 M 3 /D 11 M 3 /D WATER BALANCE DIAGRAM- EMUSIONS PLANT

12 DETAILS OF WTP - EMULSIONS PLANT -RAW WATER STORAGE TANK -HRSCC -PRESSURE SAND FILTER (PSF) - ULTRA VIOLET UNIT (UV) - REVERSE OSMOSIS UNIT (RO) - CHEMICAL DOSING SYSTEM

13 TOTAL WATER REQUIREMENT M 3 /DAY TOTAL EFFLUENT FLOWING TO ETP M 3 /D 100 M 3 /D CTBD USED FOR GREEN BELT DIRECTLY 250 M 3 /D NEUTRALISED DM REG. USED FOR GREEN BELT 1070 M 3 /D OF UF PERMEATE RECYCLED TO DM PLANT 1025 M 3 /D OF UF PERMEATE RECYCLED AS CT MAKEUP 786 M 3 /D RO PERMEATE RECYCLED TO PROCESS RO REJECT (197 M 3 /D) & SLUDGE (100 M 3 /D) FROM ETP SUBJECTED TO EVPORATION (290 M 3 /D OF CONDENSATE RECOVERED USED FOR PROCESS) SOLIDWASTE FROM RMS : 5.8TPD (85% DRY SOLIDS) FOR LANDFILL LIQUID EFFLUENT DISCHARGE – ZERO WATER RECOVERED = = 3521 M 3 /D FRESH RAW WATER REQUIREMENT M 3 /D PVC PLANT – WATER BALANCE

14 WATER RECOVERY PLANT FLOWSHEET FOR PVC PLANT


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