bentonite quarry operation, UPR, ecoinvent 3.6, Undefined

Categories:
ISIC4 categories:
B:Mining and quarrying/08:Other mining and quarrying/081:Quarrying of stone, sand and clay/0810:Quarrying of stone, sand and clay
Location:
DE - Germany
Reference year: 1997 - 2000
Description

Location: DE - Germany
This dataset represents the production of 1 kg of bentonite. Bentonite is an industrial mineral with a high content of swellable threelayer clay minerals, which often originates from the transformation of volcanic ashes and tuffs. Bentonite is used for the production of activated bentonite. This dataset is based on information published in an environmental report by a German company (Süd-Chemie AG).
References:
Kellenberger D., Althaus H.-J., Jungbluth N., Künniger T., Lehmann M. and Thalmann P. (2007) Life Cycle Inventories of Building Products. Final report ecoinvent Data v2.0 No. 7. EMPA Dübendorf, Swiss Centre for Life Cycle Inventories, Dübendorf, CH.
Virta R. L. (2015) USGS 2013 Minerals Yearbook – Clay and shale [advance release]
Undefined unit processes (UPRs) are the unlinked, multi-product activity datasets that form the basis for all of the system models available in the ecoinvent database. This is the way the datasets are obtained and entered into the database by the data providers. These activity datasets are useful for investigating the environmental impacts of a specific activity (gate-to-gate), without regard to its upstream or downstream impacts.

Technology

The technology used in the modelled German mine is probably state-of-art (first mining company in Europe taking part at an eco-audit based on EG-eco-audit requirements). The assumed thickness of the bentonite layer is 3 m. The thickness of overburden material is estimated to be 30 m. Digging and transportation is made by heavy diesel machines.
Reference:
Kellenberger D., Althaus H.-J., Jungbluth N., Künniger T., Lehmann M. and Thalmann P. (2007) Life Cycle Inventories of Building Products. Final report ecoinvent Data v2.0 No. 7. EMPA Dübendorf, Swiss Centre for Life Cycle Inventories, Dübendorf, CH.

Process type
Unit
Supported nomenclature
ecoinvent 3.6
LCI modeling approach
Before modeling
Multifunctional modeling
NONE
Format
ECOSPOLD2
Aggregation type
NOT_APPLICABLE
Data provider
ecoinvent
Review status
External
Cost
For sale
License

ecoinvent EULA

Contact
support@ecoinvent.org