Waste

Waste

We keep our consumption of resources as low as possible and are constantly reviewing how waste can be avoided. Our most common waste products are oil and oleaginous materials, waste which contains metal, and gas cylinders which have reached the end of their useful life. By using closed-loop systems for products, we increase both material efficiency and resource efficiency and cut the volume of waste produced. One example is lime slurry, a by-product of acetylene production, which can be used in other industries without any treatment being required. We dispose of any waste which cannot be recycled in an environmentally sound manner. We comply with local regulations and classify our waste as hazardous or non-hazardous in accordance with relevant legislation in the country in which we are operating. We focus in particular on hazardous waste when devising measures to achieve further reductions in waste. As the amount of waste at different sites depends on the type of business operations being carried out there, our waste management objectives are based on regional requirements. When making a multi-year comparison of the volume of waste produced, there can be significant fluctuations, as the volume of waste is dependent on the extent of our construction operations. The overall amount of waste fell in 2016 compared with 2015, as less non-hazardous waste was produced. During the reporting year, we achieved a recycling rate of about 33 percent (2015: 39 percent) for the waste we produced around the world.

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Waste and recycling1

 

 

 

 

 

 

 

 

 

 

 

 

 

2016

 

2015

 

2014

 

2013

Geprüft von KPMG

Assured by KPMG

1

In line with the information in the Financial Report 2016, the figures provided for the years 2015 and 2016 exclude the business of the logistics service provider Gist, as it has been reported as a discontinued operation.

2

Incineration waste is partly used for heat recovery.

Total wasteGeprüft von KPMG

thousand t

 

63.6

 

66.1

 

94.1

 

124.9

Non-hazardous wasteGeprüft von KPMG

%

 

63

 

66

 

76

 

76

Hazardous wasteGeprüft von KPMG

%

 

37

 

34

 

24

 

24

Recycled wasteGeprüft von KPMG

%

 

33

 

39

 

56

 

65

Incineration waste2 Geprüft von KPMG

%

 

27

 

21

 

15

 

14

Landfill wasteGeprüft von KPMG

%

 

21

 

22

 

19

 

10

Other disposal methodsGeprüft von KPMG

%

 

19

 

18

 

10

 

11

Since 2009, we have been involved in a joint venture with a Californian waste service provider in the US to extract fuel and energy from waste for around 8,500 households. Around 2.3 million tonnes of waste is recycled annually, which is sufficient to provide landfill gas to power 485 refuse trucks, replacing just under 9.5 million litres of diesel fuel per year.

We also offer our customers numerous solutions to help them avoid or recycle waste. One of our customers in the chemical industry, for example, uses our hydrogen to treat around 150,000 tonnes of waste oil per annum, saving around 130,000 tonnes of CO2 every year as a result.