Waste and recycling
Recycling and a reduction in waste can improve cost efficiency while also helping to protect the environment. In order to minimize material use and waste volumes, Bayer strives wherever technically feasible and justifiable in terms of cost to reuse materials or divert them to other processes. Direct influencing factors, such as increases in production owing to changes in the economic climate and unscheduled clean-up measures, can have a dramatic impact on the development of waste figures and recycling options.
Waste generation and disposal
The total volume of waste generated rose by 18.7 percent to 958,000 metric tons in 2011.
| 28 Waste generated * | |
|---|
| 2007 | 2008 | 2009 | 2010 | 2011 | Target 2015 |
Total waste generated (1,000 metric tons p.a.) | 928 | 1,077 | 914 | 807 | 958 | |
– Hazardous waste generated ** (1,000 metric tons p.a.) | 342 | 365 | 375 | 354 | 474 | |
– of which hazardous waste from production (1,000 metric tons p.a.) | 275 | 305 | 302 | 325 | 354 | |
Specific volume of hazardous production waste (percent) | 2.59 | 3.05 | 3.47 | 3.12 | 3.23 | 2.5 |
* Only waste generated by Bayer ** Definition of hazardous waste in accordance with the local laws in each instance |
This rise was due to increased production volumes at various sites, such as the Chempark sites in Dormagen, Leverkusen and Krefeld-Uerdingen in Germany and the Caojing site in China, but primarily as a result of a renovation project at the Bayer CropScience site in Thane in India (roughly 76,000 metric tons in 2011). The latter is a large-scale groundwater and soil remediation project. Since 1963 Bayer has operated several production processes in Thane mainly for the manufacture of active ingredients for crop protection agent production. This project is scheduled for completion in 2013 and will affect the Group’s statistics accordingly. The volume of hazardous waste in 2011 was up 33.8 percent on the previous year. Here, too, the main influencing factor is the clean-up project in India. The excavated earth and rubble from deconstruction activity are classed as “hazardous” under national law and are being disposed of at an external landfill site that does not belong to the Bayer Group.
The specific volume of hazardous production waste increased in 2011. As things stand today, we will not be able to achieve our declared target of limiting this figure to 2.5 percent of the total production volume by 2015.
This is due to changes in process steps, mainly in the CropScience subgroup. Here, for example, production waste is generated during the synthesis of active ingredients in the form of by-products that cannot be further processed or used. Due to the legal regulations in many countries, we have to declare this as “hazardous waste” and dispose of it accordingly. We will continue to report these figures in the interests of our stakeholders.
| 30 Hazardous waste* disposed of according to means of disposal |
|---|
| 2007 | 2008 | 2009 | 2010 | 2011 |
| Total volume of hazardous waste disposed of (1,000 metric tons p.a.) | 342 | 365 | 375 | 354 | 474 |
– Volume landfilled (1,000 metric tons p.a.) | 101 | 81 | 89 | 56 | 122 |
– Volume incinerated/recycled (1,000 metric tons p.a.) | 241 | 284 | 286 | 298 | 352 |
* Only waste generated by Bayer |
In parallel to waste generated, the total volume of waste disposed of also rose; in this case by 19 percent to 966,000 metric tons. Here, too, the substantial volume of waste generated by the clean-up project in India is having an impact on the overall balance. As a result, the Group’s total volume of waste disposed of in landfill increased by almost 40 percent. Without this increase in waste, the Group’s total volume of waste disposed of in landfill would have fallen by around 25 percent on the previous year. The absolute volume of incinerated waste rose by 11 percent globally in 2011 and recycled waste by 10 percent.
| 29 Waste disposed of according to means of disposal |
|---|
| 2007 | 2008 | 2009 | 2010 | 2011 |
| Total volume of waste disposed of* (1,000 metric tons p.a.) | 931 | 1,061 | 918 | 809 | 966 |
| – Proportion removed to landfill (%) | 48 | 45 | 40 | 32 | 38 |
| – Proportion incinerated (%) | 26 | 24 | 28 | 36 | 33 |
| – Proportion recycled (%) | 23 | 28 | 31 | 31 | 28 |
| Waste that cannot definitively be categorized according to one of the above disposal methods (%) | 3 | 3 | 1 | 1 | 1 |
* Bayer serves as a certified waste disposal plant operator at various sites. At these locations, Bayer disposes not only of its own waste but also of waste from third parties (companies not belonging to the Bayer Group). There is therefore a somewhat larger amount of waste disposed of than Bayer has generated itself. |
Recycling at Bayer
Recycling is not possible for a large proportion of our end products owing to legal requirements, particularly for pharmaceuticals and crop protection agents. We are constantly searching for new opportunities for extensive recycling within the framework of legal regulations. In the year under review, the volume of recycled waste amounted to 273,000 metric tons (equivalent to 28 percent of the total waste disposed of), up almost 10 percent on the prior year figure.
The Bayer HealthCare site in Myerstown, United States, inaugurated a new vitamin production line in 2011. A partner was found to recycle the 243 metric tons of recyclable waste vitamins produced in 2011, using them as a feed additive for cattle and poultry in compliance with all the relevant legal requirements.
The Global Sideline Business of Bayer MaterialScience is endeavoring to recycle, instead of scrap, a whole range of systems and tools that are fully functional but no longer required. In 2011 it sold some 75 tangible assets to third parties, including a large reaction injection molding machine. In addition, around 7,500 metric tons of scrap metal were returned to the system.
Bayer CropScience also actively supported the return of crop protection product packaging via national industrial associations and corresponding reclamation organizations in 2011. 2011 saw the collection and, to a large extent, reuse of around 10,000 metric tons of rinsed primary packaging. Bayer CropScience is also working on the establishment of efficient take-back systems in Africa, Asia and Eastern Europe. Currenta’s patented pretreatment process for electronic scrap allows up to 99 percent of precious metals such as gold, silver and copper to be recovered from old computer circuit boards and cell phones. Currenta also focuses on “building recycling” at the Chempark sites. This involves the inspection of buildings for contamination, the environmentally sound disposal of huge quantities of rubble from deconstruction activity and the reuse of any recyclable materials.
News
Emissions-neutral office building in India cuts CO2 by 67 metric tons
One year after the inauguration of Bayer MaterialScience‘s emissions-neutral office building in Greater Noida, 40 kilometers southeast of the Indian capital of New Delhi, the energy balance is positive. In 2011, 72,000 kilowatt hours (kWh) of electricity were generated with the help of the photovoltaic system installed on the roof, whereas the building used just under 64,000 kWh of energy over the same period. Polyisocyanurate thermal insulation shields the building envelope against the heat, reducing the amount of energy required for air conditioning. The products and systems used were sourced from the region. This building underlines the functionality of Bayer‘s EcoCommercial Building (ECB) Program, one of the lighthouse projects of the Bayer Sustainability Program.