Engineering Conferences International ECI Digital Archives Wastewater and Biosolids Treatment and Reuse: Proceedings Bridging Modeling and Experimental Studies Spring 6-13-2014 Wastewater treatment and reuse in the oil & petrochem industry – a case study Alberto Girardi Dregemont Follow this and additional works at: http://dc.engconfintl.org/wbtr_i Part of the Environmental Engineering Commons Recommended Citation Alberto Girardi, "Wastewater treatment and reuse in the oil & petrochem industry – a case study" in "Wastewater and Biosolids Treatment and Reuse: Bridging Modeling and Experimental Studies", Dr. Domenico Santoro, Trojan Technologies and Western University Eds, ECI Symposium Series, (2014). http://dc.engconfintl.org/wbtr_i/46 This Conference Proceeding is brought to you for free and open access by the Proceedings at ECI Digital Archives. It has been accepted for inclusion in Wastewater and Biosolids Treatment and Reuse: Bridging Modeling and Experimental Studies by an authorized administrator of ECI Digital Archives. For more information, please contact [email protected]. Wastewater Treatment and Reuse In Oil & Petrochemical Industry Otranto, June 2014 COMPANY PROFILE DEGREMONT, THE WATER TREATMENT SPECIALISTS 4 areas of 5 areas of expertise: activities: . Drinking water production . Design & Build plants . Operation & . Reverse osmosis desalination Services plants . Urban wastewater treatment . Equipment and reuse plants . BOT / PPP . Biosolid treatment systems . Industrial water production and wastewater treatment units plants 2 Wastewater Treatment and Reuse COMPANY PROFILE DEGREMONT, THE WATER TREATMENT SPECIALISTS In over For industrials: For local authorities: 70 . Energy . Drinking water countries, . Upstream oil and gas Degrémont offers . Desalination . Refining and solutions to local . Urban wastewater authorities and petrochemicals . Sludge and biosolids industries . Chemicals . Pharmaceutical, cosmetics, fine chemicals . Metals and mining . Food and beverage . Microelectronics . Healthcare providers 3 Wastewater Treatment and Reuse KEY DRIVERS For Wastewater Reuse in the Industry 1. Local laws and regulations • Italy- Gela Refinery: contaminated groundwater treatment • Italy–Priolo Petrochemical site: contaminated groundwater treatment • China – Chendgu Sichuan Petrochemical site: wastewater treatment & reuse • USA – West Basin (CA): • Middle east countries (e.g. Qatar, Oman) 2. Difficult access to fresh water source • Italy- Taranto Refinery: wastewater treatment & reuse • Middle east countries 3. Difficult access to wastewater discharge point • Italy- Val D’Agri oil field 4. Corporate responsibility • Italy- Sannazzaro Refinery: wastewater treatment & reuse 4 Wastewater Treatment and Reuse TYPICAL CONTAMINANTS Found in Refinery & Petrochem WWTP 5 Wastewater Treatment and Reuse TYPICAL TREATMENT LINES Conventional Refinery & Petrochem WWTP Inlet Wastewater Pre-Denitrification Deoiling API Pre-DN / N Nitrification For free oil Separator >100 ppm Clarifer Equalization Buffer Clarif. HRT 12 – 24 hr Tank Dissolved Gas Sand filtration Flotation Sand DGF Filters For free oil 10-100 ppm Activated Sludge GAC Dewatering Centrifuge Carbon Filtration Filters Discharge 6 Wastewater Treatment and Reuse TYPICAL TREATMENT LINES Wastewater Reuse For Refinery & Petrochem Cl2 Sensitive environment Pretreatment Membrane Biological Reactor Water Reuse: irrigation C, N-DN UV Disinfection Cl2 Pretreatment Activated Sludge Decantation Tertiary RO Brine Treatment C, N-DN Treatment UF EDI Demi Water Reverse Osmosis Electrodeionization 7 Wastewater Treatment and Reuse TYPICAL TREATMENT LINES RO Brine Treatment RO Brine RO Brine RO Brine COD 200 – 400 ppm COD 200 – 400 ppm COD 200 – 400 ppm COD Pre HMW molecules GAC Oxydation Ozonation Ozonation Break-up Adsorption Filters Adsorption GAC Biofor® Biofiltration Discharge Or Biofiltration Filters or Biofor ® COD < 160 ppm Strong Post Oxydation Discharge Ozonation COD < 100 ppm COD GAC Filters Adsorption Discharge COD < 60 pmm 8 Wastewater Treatment and Reuse Italy - Gela Refinery Contaminated Groundwater Treatment & Reuse 9 Wastewater Treatment and Reuse Gela Refinery Contaminated Groundwater Treatment Design data and performances of the plant • Inlet contaminated groundwater – Design data: . Flow rate (design): 300 m3/h (7200 m3/day) . Ammonia: 300 ppm . Arsenic: 4300 ppb . BTEX: 4850 ppb . MTBE: 2220 ppb • Pro-demi water production (Reverse Osmosis permeate): . Flow rate (design): 210 m3/h (5040 m3/day) . TDS: 80 mg/l • Reverse Osmosis reject discharge to sea: . Flow rate (design): 90 m3/h (2130 m3/day) . As < 10 ppb . BTEX < 50 ppb . NH4-N < 5 ppm . COD < 160 ppm 10 Wastewater Treatment and Reuse Gela Refinery Contaminated Groundwater Treatment Block Diagram Groundwater GAC Air Groundwater As 100 m3/h Filtration 200 m3/h Storage Tanks Storage Tanks 2 x 1000 m3 Biological Sludge 2 x 1000 m3 Biological Reactor storage & CPI n. 2 Lines dewatering Oxidation PreDN 3500 m3 Reject Storage Tanks Coagulation N 5200 m3 Blanketing 2 x 150 m3 & Inerting Densadeg 27 m2 PostDN 1400 m3 GAC Filtration Zenon Membranes Sand Filtration n. 2+2 x 3 m dia N.4 Lines n. 4 x 3 m dia GFH Filtration N. 16 ZEEWED GFH Filtration n. 2+2 x 3 m dia (As removal) 500 D 40/48 n. 4 x 3 m dia Reverse Osmosis Discharge to Sea 3 x 70 m3/h RO Permeate Storage Tank RO Permeate to Chemical Sludge demi plant 1 x 1000 m3 storage & dewatering 11 Wastewater Treatment and Reuse Gela Refinery Contaminated Groundwater Treatment Layout 12 Wastewater Treatment and Reuse Gela Refinery Contaminated Groundwater Treatment Chemical oxidation and precipitation 13 Wastewater Treatment and Reuse Gela Refinery Contaminated Groundwater Treatment Sand Filters, GFH Filters, GAC Filters 14 Wastewater Treatment and Reuse Gela Refinery Contaminated Groundwater Treatment Nitrification basin Ultrafiltrazione 15 Wastewater Treatment and Reuse Gela Refinery Contaminated Groundwater Treatment Ultrafiltration Membranes section 16 Wastewater Treatment and Reuse Gela Refinery Contaminated Groundwater Treatment Reverse Osmosis section 17 Wastewater Treatment and Reuse Italy - Taranto Refinery Waste Water Treatment & Reuse 18 Wastewater Treatment and Reuse Taranto Refinery Wastewater Reuse Design data and performances of the plant • Inlet treated wastewater– Design data: . Flow rate (design): 550 m3/h (13200 m3/day) . COD: 80 ppm . TDS: 20000 ppm . BTEX: 300 ppb . MTBE: 1200 ppb • Pro-demi water production (Reverse Osmosis permeate): . Flow rate (design): 350 m3/h (8400 m3/day) . TDS: 10 mg/l • Reverse Osmosis reject discharge to sea: . Flow rate (design): 200 m3/h (4800 m3/day) . COD < 160 ppm . BTEX < 50 ppb . MTBE < 500 ppb 19 Wastewater Treatment and Reuse Taranto Refinery Wastewater Reuse Block Diagram Waste Water from Biological Treatment UF Reject FeCl3 550 m3/h Thickening N. 1 Densadeg Poly NaClO 10 m2 Storage Tanks H2SO4 Sludge dewatering 1 x 3000 m3 FeCl3 (Centrifuge) Poly Zenon Membranes NaClO N.4 Lines 500 D 64/64 RO Reject Citric Acid N. 16 ZEEWED Storage Tanks 500 D 48/64 UF Permeate 1 x 200 m3 Storage Tank GAC Filtration H2SO4 1 x 1000 m3 n. 3+3 x 3 m dia. H2SO4 Reverse Osmosis PT 191 First Pass NaHSO3 3 x 180 m3/h Biocide Reverse Osmosis RO Reject Second Pass Discharge to Sea NaOH 3 x 135 m3/h RO Wash Water RO Permeate RO permeate to PC Storage Tank Storage Tank demi plant 1 x 9 m3 1 x 2500 m3 20 Wastewater Treatment and Reuse Taranto Refinery Wastewater Reuse Layout 21 Wastewater Treatment and Reuse Taranto Refinery Wastewater Reuse Reverse Osmosis First Pass 22 Wastewater Treatment and Reuse Taranto Refinery Wastewater Reuse Reverse Osmosis Second Pass 23 Wastewater Treatment and Reuse Taranto Refinery Wastewater Reuse Brine Treatment with GAC Filters 24 Wastewater Treatment and Reuse USA – West Basin (CA) Wastewater treatment and recycling facility 25 Wastewater Treatment and Reuse West Basin Wastewater Treatment & Recycling Design data and performances of the plant • Inlet water: pretreated municipal wastewater: . Flowrate: 9000 m3/h (215000 m3/day) . TOC: 12 ppm . TDS 900 ppm . TSS 10 ppm • Treated water production: . Pretreated Water (TSS removal) for Irrigation . Softened Water for groundwater injection . RO First Pass Permeate (TDS < 30 ppm) for LP Boilers . RO Second Pass Permeate (TDS < 2ppm) for HP Boilers • Reverse Osmosis reject discharge to sea (no treatment required) 26 Wastewater Treatment and Reuse TITLE 22 TREATMENT PROCESS Mono-media High Rate Clarifiers Filtration Disinfection mixer 8 8 Storage TO TITLE 22 Tanks DISTRIBUTION mixer SYSTEM backwash supply Washwater Clarifiers GRAVITY HYPERION THICKENERs BOILER FEEDWATER TREATMENT PROCESS PLANT PUMP Washwater Equalization st STATION 1 Pass Reverse Osmosis Low MF Feed Microfiltration Pressure Pumps strainers Boiler TO CHEVRON’S MF Feedwater LOW PRESSURE Clear cartridge Clear Well Low BOILERS Well filters Pressure brine Product Pumps 2nd Pass Reverse Osmosis TO WASHWATER EQUALIZATION High TO CHEVRON’S Pressure HIGH PRESSURE Boiler High BOILERS 2nd Pass RO brine RO Pass 2nd Pressure Feedwater Feed BARRIER TREATMENT PROCESS Clear Well Pumps Reverse Osmosis TO WEST NaOCl COAST BASIN BARRIER PROJECT Microfiltration brine TO HYPERION 5-MILE Reverse Osmosis Storage 2 O Ultra-Violet OUTFALL Basin cartridge 2 H strainers filters decarbonators TO WASHWATER EQUALIZATION brine 27 Wastewater Treatment and Reuse West Basin Wastewater Treatment & Recycling Microfiltration 28 Wastewater Treatment and Reuse West Basin Wastewater Treatment & Recycling Reverse Osmosis 29 Wastewater Treatment and Reuse West Basin Wastewater Treatment & Recycling UV Disinfection 30 Wastewater Treatment and Reuse Thank you for your attention ! 31 Wastewater Treatment and Reuse .