Halophyte Plants and Their Residues as Feedstock for Biogas Production—Chances and Challenges
| Autor: | Jutta Papenbrock, Ariel E. Turcios, Hinrich Uellendahl, Aadila Cayenne |
|---|---|
| Jazyk: | angličtina |
| Předmět: |
anaerobic digestion
0106 biological sciences Salicornia europaea 020209 energy Biomass 02 engineering and technology lcsh:Technology 01 natural sciences 7. Clean energy biogas production lcsh:Chemistry Biogas Halophyte 0202 electrical engineering electronic engineering information engineering co-digestion General Materials Science Biorefining lcsh:QH301-705.5 Instrumentation Crithmum maritimum 2. Zero hunger Fluid Flow and Transfer Processes Tripolium pannonicum biology lcsh:T Process Chemistry and Technology General Engineering food and beverages 15. Life on land biology.organism_classification lcsh:QC1-999 6. Clean water Computer Science Applications Energy crop Chenopodium quinoa Anaerobic digestion lcsh:Biology (General) lcsh:QD1-999 Agronomy lcsh:TA1-2040 13. Climate action Environmental science halophyte composition lcsh:Engineering (General). Civil engineering (General) lcsh:Physics 010606 plant biology & botany |
| Zdroj: | Applied Sciences Applied Sciences, Vol 11, Iss 2746, p 2746 (2021) |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app11062746 |
| Popis: | The importance of green technologies is steadily growing. Salt-tolerant plants have been proposed as energy crops for cultivation on saline lands. Halophytes such as Salicornia europaea, Tripolium pannonicum, Crithmum maritimum and Chenopodium quinoa, among many other species, can be cultivated in saline lands, in coastal areas or for treating saline wastewater, and the biomass might be used for biogas production as an integrated process of biorefining. However, halophytes have different salt tolerance mechanisms, including compartmentalization of salt in the vacuole, leading to an increase of sodium in the plant tissues. The sodium content of halophytes may have an adverse effect on the anaerobic digestion process, which needs adjustments to achieve stable and efficient conversion of the halophytes into biogas. This review gives an overview of the specificities of halophytes that needs to be accounted for using their biomass as feedstocks for biogas plants in order to expand renewable energy production. First, the different physiological mechanisms of halophytes to grow under saline conditions are described, which lead to the characteristic composition of the halophyte biomass, which may influence the biogas production. Next, possible mechanisms to avoid negative effects on the anaerobic digestion process are described, with an overview of full-scale applications. Taking all these aspects into account, halophyte plants have a great potential for biogas and methane production with yields similar to those produced by other energy crops and the simultaneous benefit of utilization of saline soils. |
| Databáze: | OpenAIRE |
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