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Valorization of high-salinity effluents for CO2 fixation and hypochlorite generation
- Source :
- RUIdeRA. Repositorio Institucional de la UCLM, instname
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- In this work, it is evaluated the fixation of carbon dioxide using the alkali generated in the chloralkaline process, as a new way to face the treatment of highly saline wastewater, in which it is aimed not to separate the wastewater into concentrated and diluted streams but to recover value-added products (VAPs) while contributing to minimize the carbon fingerprint of other processes. The electrolytic process is combined with a reactive absorption and with a crystallization, demonstrating the formation of pure nahcolite, hypochlorite (or chlorine) and hydrogen from the waste. Carbon dioxide is captured with a current efficiency over 90% and the energy required is around 0.65 kWh kg−1, which is very promising from the view point of sustainability, considering that the system can be easily powered with green energies.
- Subjects :
- Environmental Engineering
Carbon dioxide fixation
Health, Toxicology and Mutagenesis
Chloralkaline process
Public Health, Environmental and Occupational Health
chemistry.chemical_element
Hypochlorite
General Medicine
General Chemistry
Pulp and paper industry
Pollution
Nahcolite
Electrolysis
Absorption
chemistry.chemical_compound
chemistry
Wastewater
Carbon dioxide
Chlorine
Environmental Chemistry
Environmental science
Carbon
Effluent
Electrolytic process
Value-added products
Subjects
Details
- ISSN :
- 00456535
- Volume :
- 285
- Database :
- OpenAIRE
- Journal :
- Chemosphere
- Accession number :
- edsair.doi.dedup.....44f65c276dd3c8f2d3bf43b9ace9e36b