water production, decarbonised, UPR, ecoinvent 3.6, Undefined

Categories:
ISIC4 categories:
E:Water supply; sewerage, waste management and remediation activities/36:Water collection, treatment and supply/360:Water collection, treatment and supply/3600:Water collection, treatment and supply
Location:
RU - Russian Federation
Reference year: 2010 - 2017
Description

Location: RU - Russia
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

Water treatment in power plants by precipitation or carbonates for the use as cooling water.
Decarbonazation is a method that removes carbon dioxide from water very effectively to minimizes the potential of carbonates precipitation of mineral salts. Moreover, reducing the carbon dioxide level in feed water also diminishes the ionic load on ion exchange processes mostly used in water treatment systems (Technology Deegremont, 2017).
The treatment involves feeding water into the top of a tower, at atmospheric pressure while air is injected from the bottom of the tower in a countercurrent flow design. When water bicarbonates are in contacted with air, cat ion exchanging processes are carried out converting them to carbonic acids, which easily break into water and carbon dioxide (Paramount, 2015). As the air moves to the top of the tower, it starts saturating with CO2 when contacting the water, where it is finally removed. High surface contact area in the tower bed, enhances CO2 transformation from the liquid to the gas phase (Technology Deegremont, 2017).

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