The amount of waste disposed in 2018 remained consistent with 2017.
From year to year, the amount of waste generated at Methanex is highly dependent on plant maintenance turnarounds and projects. In 2018, there were two turnarounds (similar to 2017), and we also had project work related to the restart of our Chile IV plant.
Typically, 30–35% of the waste we generate in manufacturing can be recycled. The majority of recyclable material is generated during turnaround projects and includes spent catalysts, steel from machinery, piping, and wood. In 2018, 25% of waste was recycled, lower than previous years. This is mainly due to spent catalyst generated by one of the turnarounds, which remained on site past the end of the year and will be recycled in 2019.
In 2018, approximately 87% of our total waste was nonhazardous. This waste, which was disposed to landfill, included materials such as insulation, spent filtering resins, asphalt, and sludge. These were disposed in accordance with local requirements.
In 2014, there were no plant maintenance turnaround projects, resulting in lower volumes of waste generated.