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
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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
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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 filters Pressure Well 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