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Effects from Fe, P, Ca, Mg, Zn and Cu in Steel Slag on Growth and Metabolite Accumulation of Microalgae: A Review
- Source :
- Applied Sciences, Vol 11, Iss 6589, p 6589 (2021)
- Publication Year :
- 2021
- Publisher :
- MDPI AG, 2021.
-
Abstract
- Steel slag is the solid waste produced by the steelmaking process. At present, there are differences in the treatment and utilization of this waste among countries around the world. The massive accumulation of steel slag not only occupies land, but also the heavy metal elements in steel slag leached by rainwater cause serious pollution to the soil and groundwater, both which threaten the life and survival of the surrounding residents. More and more attention has been paid to the resource utilization of slag because of the gradual promotion of energy saving and emission reduction all over the world. Currently, the fields that utilize slag focus on recycling of steel waste, acting as sinter raw material, dephosphorization of hot metal, road and water conservancy project construction, wastewater treatment material, application of CO2 capture and flue gas desulfurization or agriculture. Many researchers have carried out research and explorations on the effects of slag on microalgae’s growth and found that slag has enormous potential algal biomasses and huge advantages for promoting microalgae’s growth and the accumulation of metabolites. Under suitable conditions, slag can effectively promote microalgae’s growth and reproduction, as well as promote microalgae’s accumulation of metabolites, especially lipid accumulation. Thus, slag can be used as an ideal nutrient for microalgae. Culturing microalgae with slag can lower the cost and solve the problem of lacking Fe during the process of marine microalgae’s growth. Meanwhile, it can alleviate the phenomenon of the substantial stacking of slag. This study provides new methods for slag’s resource utilization.
- Subjects :
- Pollution
Technology
Municipal solid waste
QH301-705.5
QC1-999
media_common.quotation_subject
0211 other engineering and technologies
biodiesel
02 engineering and technology
010501 environmental sciences
Raw material
01 natural sciences
slag
Rainwater harvesting
energy saving and emission reduction
General Materials Science
021108 energy
Biology (General)
QD1-999
Instrumentation
0105 earth and related environmental sciences
media_common
Fluid Flow and Transfer Processes
Biodiesel
Waste management
business.industry
microalgae
Physics
Process Chemistry and Technology
General Engineering
Slag
solid waste utilization
Engineering (General). Civil engineering (General)
Steelmaking
Computer Science Applications
Chemistry
visual_art
visual_art.visual_art_medium
Environmental science
Sewage treatment
TA1-2040
business
Subjects
Details
- ISSN :
- 20763417
- Volume :
- 11
- Database :
- OpenAIRE
- Journal :
- Applied Sciences
- Accession number :
- edsair.doi.dedup.....d371eb2d954f2afc13643e43e2d861d9