These sugggestions are being studied by the bag manufacturer Weltplast as they introduce the bags on a permanent basis. The compostable Ecovio bags that are familiar to the residents through the pilot project will continue to be available for purchase from various points of sale throughout the district.
More biomassEffective immediately, the district of Bad Dürkheim has approved the permanent use of organic waste bags made of BASF's compostable plastic Ecovio® FS. Residents and local waste management companies #
A crucial benefit for waste recovery is that the disposal companies do not need to laboriously segregate the organic bags. The bags are converted along with the organic waste into valuable compost, carbon dioxide and water. They help residents in their effort to collect organic waste. Moreover, if more composting is carried out over a larger region, this will reduce the amount of organic waste that ends up in residual waste.
The rate of incorrect disposal, in other words the percentage of unwanted conventional plastics in the organic waste, did not change as a result of the use of the biodegradable plastic bags. During the test, the compost did not contain a larger number of bags made of conventional, non-biodegradable plastics.
Biodegradable plastics: Ecovio and Ecoflex
The biodegradable plastic Ecovio FS is a new BASF development. This material is made of the partially bio-based plastic (polyester) Ecoflex® FS and PLA (polylactic acid), which is obtained from corn starch. Thanks to this combination, the bags used in the Bad Dürkheim pilot project contain more than 50 percent renewable raw materials. Like the biodegradable waste itself, Ecovio is broken down by microorganisms with the aid of enzymes. This degradation process depends only on the structure of the molecules, not on the origin of the raw materials. At the end of the composting process, the microorganisms have completely converted the bags into carbon dioxide, water and biomass.
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