Water and Wastewater Management
Supporting the SDGs Goals
Management Approach
Water Management
Water is a vital resource for human livelihood and for various industrial operations.
At the Bangchak Phra Khanong Refinery, water management is a core operational focus, with the majority of water consumption occurring in production processes. The Company therefore recognizes the risks and potential impacts associated with withdrawing water from natural sources for its operational activities and production processes, as well as the importance of wastewater treatment prior to discharge into the external environment.
Strategies and Actions
Apply the 3Rs principle (Reduce, Reuse, and Recycle) to improve water use efficiency
Manage water resources using modern tools and technologies
External Collaboration and Partnership
The Company participates in the stewardship of natural resources for water conservation in collaboration with stakeholders and various external organizations through multiple approaches, for example:
- Cooperate with the Marine Department in the procurement of the Sritara Rak 8 vessel, a waste and oil spill response vessel, to protect and maintain the environmental quality of the Chao Phraya River.
- Collaborate with local communities and suppliers to organize activities for collecting waste from canals and planting trees to prevent riverbank erosion along the Chao Phraya River.
- Conduct awareness campaigns in cooperation with government agencies, such as local administrative organizations, the Bangkok Metropolitan Administration, and the Department of Health, through the “Fry to Fly” project, to purchase used cooking oil from households in nearby communities and markets around the Bangchak Phra Khanong Refinery and from Bangchak service stations nationwide, in order to reduce the improper disposal of used cooking oil into public water bodies.
Wastewater Management
The Company manages water pollution through a high‑efficiency wastewater treatment system, resulting in effluent quality that exceeds legal regulatory standards. In addition, wastewater discharge is reduced by applying the 3Rs principle through the reuse of treated water in production processes.
Thereby reducing the consumption of water resources. The refinery’s wastewater treatment process comprises 3 main stages, as follows:
Physicochemical Treatment Process
Separate oil from wastewater.
Biological Treatment Process
Remove dissolved organic compounds.
Tertiary Treatment Process
Remove remaining fine particles through filtration and adsorb the residual dissolved organic substances to improve water quality, ensuring it is suitable for recycling.
Targets and Performance
Our commitment to creating a sustainable impact is reflected in our ESG goals and performance.
Target
Reduction of tap water and groundwater use
Control of water consumption per production capacity
Performance
Reduction of tap water and groundwater use
Control of water consumption per production capacity
New Tap Water Usage Reduction Measures according to the 3Rs Principle Compared with Annual Production Water Demand
* Water usage data in Bangkok Phra Khanong area, where the refinery is located. The average family member in each household is 1.85 people / household, the amount of water used is 0.56 cubic meters / person / day or 1.04 cubic meters / household / day. (Information from the Metropolitan Waterworks Authority: 2015)
Volume of recycled water reused
Volume of water reused and recycled
