SARA DE SILVA

Process Safety Engineering

• Developing site's PSM system including improvements to sites Incident Management systems

This includes development of procedures for effectiveness testing of Safety Critical Controls (SCC's) in compliance with WHS Regulations 2017 clauses for an MHF, monitoring and tracking system automated on Excel timely SCC testing.

• Assist in root-cause analysis investigations and drive process plant improvements.
• Assisted in worksite incident investigations, helping to determine cause and fault to ascertain liability.
• Designed engineering solutions when facilities or equipment failed safety inspection, verifying future compliance with appropriate guidelines.
• Site contact and liaising with NSW Safe Work Inspector on MHF related compliance
• Closeout of site's Condition of License actions opened since 2021. This removed site's MHF Licensing restriction and ensured full compliance against Chapter 9 of the WHS Regulations for operation of an MHF
• Thorough understanding of legislative requirements, under the WHS Regulations, for operating an Major Hazard Facility
• Data analysis of ALARM logs to develop sites Alarm Management System and deliver monthly Alarm KPI's to the management team
• Optimized emergency response plans, leading to more effective incident management and lower downtime.
• Led incident investigations to identify root causes and implement corrective actions, preventing future occurrences.
• Conducted quantitative risk assessments to prioritize risk reduction measures in areas with high potential impact on personnel or equipment.
• Developing the sites Safety Management System (SMS) for corporate and federal compliance to the WSH Regulations 2017.

This involved development of PSM and SMS dashboards with the use of Power BI.

• Improving process safety information, and developing new PHA Revalidation and SFARP process for the site

This included developing a systematic process for documenting SFARP decision test outcomes, PHA analysis to demonstrate SFARP status on current major incidents to comply with WHS Regulations.

• Responsible for updating and keeping current Bowtie Diagrams and LOPA calculations on software Bowtie Xp. Keeping current PHA study records on software PHA PRO and SFARP status register

Process Engineering

• Project 1: Ethylene Preheater Removal

- Assisted the senior process engineer in designing, testing and executing the PHA project for 2024 of decommissioning the ethylene pre-heater heat exchanger and commissioning of coriolis meter.

- Use of AFT Arrow for pressure drop calculations and ASPEN HYSYS modelling to determine worst scenario cases for extremities in temperature, flowrate and pressure.

- Participated in HAZOP for the and utilised HYSYS simulations outputs to determine scenarios and risk rankings

• Project 2: Installation Trip Solenoid on Reboiler Steam Control Valve

- LOPA study and SIL target calculations to determine risk reduction

- Coding new trip system on SIS Emerson Triconex system

- Preparation of MoC and CHAZOP for changing BPCS controlled steam control valve to trip solenoid driven through triconex to obtain SIL 2 credit

• Developed PSI (Process Safety Information) for 5 x waste-oil refinery sites. The PSI package included the creation of site SOP's, Safe Work Method Statements (SWMS), Mainteance start-up and shutdown procedures, LOTO system process and register, Input and Output (I/O) Lists, Cause & Effect (C&E) matrices.
• Development of Process Flow Diagrams (PFD's) and P&ID's for Dandenong's Fuel-Oil dewatering site.
• Worked with external control systems engineer to write control systme logic descriptions for Dandenong's Fuel-Oil dewatering site.
• Supervised operations at Melbourne Fuel Oil Refinery:

- Provided training for non-refinery operators on full plant operation from start-up, loading and unloading, shutdown and plant throughput optimisations on PLC.

- Troubleshooting technical faults and day-to-day shortfall identification and resolution. Provided guidance to operators on how to rectify plant upsets efficiently to reduce production downtime.

- Increased production throughput rate by optimising SCADA input variables. Trained operators in daily operational optimisation strategy on plant SCADA system to achieve higher production volumes.

- Identified opportunities to automate manual process on plant SCADA and control system. Liaised improvement opportunities with senior process/fixed assets engineer and electrical engineers for implementation.

• Undertook role of Maintenance Planner for 4 Cleanaway fuel-oil dewatering sites and Wetherill Park refinery.

- Meticulous planning g to cover compliance assets inspections/cleaning, preventative and corrective maintenance work

- Ensured successful hand over from production to mechanical and vice-verca in plant mainteance turnarounds within allocated turnaround timeframes and budget.

- As process safety engineer, captured all process safety event tier related events throughout the shutdown. Identified and rectified gaps in both lagging and leading indicators.

- Efficient and regular communication between internal operation teams to ensure all shutdown scopes are executed in safety as a priority.

• Participated and contributed in a HAZOP study to identify risks and formulate mitigation strategies for Kalgoorlie's fuel-oil dewatering site fro hazardous area classification zone-1 to zone-2.
• Acted in the role of project manager for Kalgoorlie's fuel-oil dewater site in managing the cooling water tower replacement, boilder feedwater and pipework upgrade, including the developemnt of capital expenditure reports.
• Assisted the fixed assets manager in providing general process engineering support for 6 x cleanaway fuel oil and refinery sites across australia.
• Acted in the role of 'Site Operations Supervisor'for 3-week duration at Dandenong's Fuel-Oil dewatering site

- Met target fuel-oil production volumes

- Carried out day-to-day surveillance of plant operations

- Identified plant shortfalls and promptly rectified disruptions by troubleshooting equipment failures in the most cost and time efficient manner to reduce production impact and deliver required loads of refined waste-oil to customers

- Optimised throughput rate by monitoring plant control system (manipulation of set point varaibles to iccrease Fuel-Oil 100 throughput rate)

- Coordinated with internal and external stakeholders to manage waste-oil deliveries with production volume to meet customer requests.

• Undertook lead in and responsibility of incident investigation for waste-oil storage tank LOPC event

- Completed root-cause-investigation

- Liaised with operational, SCADA technicians and relgaional managers for data accquisition for investigation purposes an

- Completed new calculations for tank safe fill levels/overfill levels referencing API-2350 standard

- Conducted MoC to implement new SCADA tank levels and interlocks to prevent overfill of the hazardous waste-oil tanks

• Tasked with the overally management for all 6 Cleanaway sites Safety Critical Element auditing, which involved:

- Monthly consultations with production engineers and sites to ensure all major assets are compliant in design aspects and according to various Australian Stadnards (such AS-1210 for pressures vessels,AS-1940 for tanks)

- Reviewed and categorised risk severity levels for process safety related incidents on excel, creation of dashboards to demonstrate trends in recurring incidents

• Assist in design of projects that leads to potential savings in operations, improvement in reliability or efficiency of processes or compliance with regulatory requirements.
• Co-authored technical paper highlighting various process optimisations to South Windsor Sewage Treatment plant to comply with stringest EPA wastwater nutrient discharge requirements.
• Jointly presented the technical paper at the 2022 OzWater Conference held in Brisbane, for significantly reducing nitrogen and phosphorous concentrations before discharge into natural waterways
• Assisted the Wastewater and Mainteance engineer to carry out laboratory jar testing experiments to determine optimal molar radtio and pH dosing against various coagulants to enhance phosphorus removal from wastewater
• Assisted in research into various coagulants and flocculants and conducted removal rate calculations to determine the most efficient and cost-effective chemicals
• Indentified data requriements and undertook bench-top studies to meet Hawkesbury Council's commitment to staying within the discharge and odour thresholds to meet the Hawkesbury Nepean Nutrient Offset Framework criteria.
• Undertook benchtop studies/pilot project on an trial teritary ultrafiltration unit to reduce nutrient concentrations and assess its economic viability for full-scale installation
• Designed and executed different modes of operations for primary, secondary and teritary process for both the South Windsor and McGraths Hill wastewater treatment plants
• Preparaed tenders and quotes, and supervised the execution of capital works
• Managed EMS, quality assurance systes etc, and data management for the wastewater

• Work with both clients & staff to address complex customer complaints made directly to ANZ. complaints ranged in the following areas:

- Everyday Banking
- Home loans
- Credit Card transactions
- Business Banking

• Managed high-volume cases whilst also maintaining quality case
  closure rates in a fast-paced environment.
• Strong problem-solving ability to investigate situations, isolate facts and determine appropriate action.
• Liaised with other business departments to reach final resolution in favor of both client and ANZ.
• Improved system/ANZ processes within my team and other business areas by providing effective and efficient solutions to address existing systematic issues and potential economic risks.
  - Identified improvement to ANZ biometrics
  and detection hoax calls and scams to
  prevent unauthorized use and manipulation
  of customers in vulnerable age category

• Take responsibility for delivering high quality customer interactions
• Address customer concerns by helping them get on top of their finance and improve overall financial wellbeing. Connect with customers by conducting in-depth conversations to
  explore customer needs throughout differing life stages and presenting total product solutions based on client’s specific needs.
• Manage high volume workload within a deadline-driven environment and consistently meet performance benchmarks.
• Focus on bank national and local priorities and set up gals achieve same in set time.
• Adjust and adapt to change with willingness to take action to deliver ANZ Retail strategy.

• Prepare fragrance applications in different bases meeting the needs of creative and development teams under guidance.
• Support Fragrance Applications Team in executing daily lab tasks.
• Administration of sample requests
• Assist in the administration of materials and laboratory organization.
• Aid in maintaining up-to-date local fragrance library.
• Maintain a safe, clean, and orderly laboratory environment in accordance with EH&S policies
• Under supervision, provide technical support to Sales teams.