Oil Refinery and Petrochemical Industry Wastewater Treatment

Introduction

Petroleum refining and petrochemical industries unavoidably generate large volumes of wastewater. As environmental regulations for wastewater disposal are getting stricter, and freshwater resources are becoming increasingly limited, the industry requires more efficient management and reuse of this wastewater. Therefore, wastewater treatment must be explored and resolved by every oil refinery and petrochemical company.

This 5-Day Oil & Gas Technology training course on Oil Refinery & Petrochemical Industry Wastewater Treatment will identify how to get to the core of this issue using thorough analysis of the development status of wastewater treatment methods including flotation, coagulation, biological treatment, membrane separation technology, combined technology and advanced oxidation process that ultimately results in maximization of petroleum refining and petrochemical industries profitability and meeting with the strict environmental regulations.

Participants will learn several configurations and techniques for Wastewater Treatment Plants (WWTP) in oil refining and petrochemical industries. Understanding these techniques will be reinforced by exercises and case studies.

This Oil & Gas Technology training course provides both theoretical and practical knowledge and skills on:

• Typical sources and contaminants of wastewater produced from oil refining and petrochemical industries
• Refinery and petrochemical Wastewater Treatment Plants (WWTP) impacts and benefits
• Conventional refinery and petrochemical wastewater treatment plants
• Current development status of wastewater treatment technologies
• Latest on wastewater recycle / reuse for oil refining and petrochemical industries (ZLD)

Objectives

By the end of this course, participants will be able to:

• Learn the purpose, principles of operation and limitations of the different wastewater treatment technologies in oil refining and petrochemical industries
• Understand how to establish high recovery of wastewater for reuse onsite, reducing freshwater intake and meeting strict regulatory requirements
• Understand the advanced cost-effective technologies for the reduction of waste volume and obtain Zero Liquid Discharge (ZLD)
• Learn how to reduce the energy consumption and operational costs of the wastewater treatment facilities and optimize treatment conditions
• Learn industry-standard targets for wastewater prior to discharge or reuse
• Identify the impact of pollution on the environment
• Modify treatment facilities operating conditions according to the properties of incoming polluted wastewater
• Improve the operability and reliability of equipment

Training Methodology

This is an interactive course. There will be open question and answer sessions, regular group exercises and activities, videos, case studies, and presentations on best practice. Participants will have the opportunity to share with the facilitator and other participants on what works well and not so well for them, as well as work on issues from their own organizations. The online course is conducted online using MS-Teams/ClickMeeting.

Who Should Attend?

This training course is suitable to a wide range of professionals but will greatly benefit:

• Refinery and Petrochemical Plant Managers
• Process Engineers and Technologists involved in wastewater treatment facilities
• Maintenance Engineers
• Plant Engineers
• Operations Personnel including Shift Supervisors
• All Professionals involved in wastewater treatment facilities
• Other Engineers who would like to have a further understanding of the wastewater treatment technology
• Anyone who wishes to update himself on the methods used in this important field

Course Outline

Day 1: Refinery and Petrochemical Plant Overview

Refinery and Petrochemical Plant Overview

Raw materials
Product and Processes
Refinery configuration

Water and Wastewater management

• Refinery water overview

• Overall refinery water balance

• Sources of water

• Water leaving the refinery

• Raw water treatment

• Process water

Best Practices for Managing Refinery and Petrochemical Plant WWTP

Day 2: Primary & Secondary Oil/Water Separation

The Composition of Wastewater
Aquatic Biology
Six Important Elements

Analytical Methods Used in the Laboratory and Through Online Analyzers

• Biochemical Oxygen Demand

• Chemical Oxygen Demand (COD)

• COD and BOD5 Equivalence for Hydrocarbons

• Hydrocarbons (HC) in Water

Effluent treatment
Unit Processes in Wastewater Treatment
Process wastewater pre-treatment

• Desalter effluent treatment

• Desalter oil/water separation

• Desalter effluent VOC control

Primary treatment

• Particle Settling

• Ideal Sedimentation

• First stage: separation (oil/water separators, API separators, CPI)

• Oil Skimming Device

Day 3: Biological Treatment

Coagulation/ Flocculation
Dissolved air flotation (DAF)
Induced air flotation (IAF)
Equalization system       

Biological Treatment
Secondary treatment/Biological Treatment
Activated sludge

• Sludge Volume Index

• Activated Sludge troubles and remedial actions

• Aerators
  
  Biological Treatment Options
  Activated sludge treatment with powdered activated carbon

Day 4: Tertiary Treatment    

Biological Treatment Options

• Oxidation Ditch

• Aerated lagoons

• Powdered Activated Carbon Treatment

• Sequencing batch reactor (SBR)

• Membrane bioreactor technology

• Attached Growth Processes

• Biological Clarification Gravity Clarifiers

Tertiary Treatment

• Sand filtration

• Activated carbon

Chemical oxidation

Sludge Treatment
Sewage sludge quantity and characteristics

• Sludge pumping systems

• Thickening/ dewatering of Sludge

• Dimensioning of a static thickener

• Dewatering

Treatment of sludge's

• API separator—bottom sludge

• Bioremediation

• DGF/IGF float and sludge

Waste biological sludge
Sludge stabilization

• Simultaneous aerobic stabilization

• Mesophilic anaerobic digestion

• Aerobic digestion

Sludge Disposal and Agricultural Utilization

Day 5: Recycle and Reuse Issues

Recycle and reuse issues

• Re-use of non-contaminated stormwater

• Firewater

• Cooling tower makeup water

• Utility water

• Boiler feedwater makeup

Technologies for the upgrade of refinery wastewater

• Basic media/sand filtration

• Microfiltration or ultrafiltration

• Microfiltration or ultrafiltration, with reverse osmosis

• Microfiltration or ultrafiltration, with Nanofiltration

• Ion exchange

Technology summary—refinery wastewater reuse

Reuse of municipal wastewater

• Media filtration

• Microfiltration or ultrafiltration

• Microfiltration or ultrafiltration, plus reverse osmosis

• Zero liquid discharge