Impact of the Innovative Green Wall Modular Systems on the Urban Air

Shushunova, Natalia; Korol, Elena; Luzay, Elisaveta; Shafieva, Diana

doi:10.3390/su15129732

Cited by 5 publications

(4 citation statements)

References 29 publications

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“…The mechanisms and effectiveness of air biofiltration in GWS depend on a broad range of factors related to plant species, fertilizers, microbial community structure, air contamination load, airflow rate, environmental conditions (e.g., seasonal variations), and the GWS design [31][32][33][34]. Three groups of factors, i.e., the sorption capacity of ECP, the specific impact of plant species on the biofilm activity/metabolic diversity, and their ability to remove FA, were tested.…”

Section: Discussionmentioning

confidence: 99%

Formaldehyde Removal by Expanded Clay Pellets and Biofilm in Hydroponics of a Green Wall System

Žorža,

Ceļmalniece,

Sieriņa

et al. 2023

Sustainability

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Air pollution with formaldehyde (FA) has been an emerging concern over recent years. This study was aimed at evaluating the contribution of green wall system-derived expanded clay pellets (ECP) and biofilms to FA removal in liquid phase. The effects of four plant species on this process were compared. An inhibition of the fluorescein diacetate hydrolysis activity of biofilm-derived microorganisms was detected during the exposure to FA in both air and liquid phases, and this effect was plant-species-specific. Liquid chromatography with a UV detector was applied for the quantification of FA. The FA removal activity of ECP in the liquid phase was 76.5 mg ECP−1 after a 24 h incubation in the presence of 100 mg/L FA, while the removal activity of the biofilm differed depending on the plant species used, with the highest values detected in the set with Mentha aquatica, i.e., 59.2 mg ECP−1. The overall FA removal from the liquid phase during 24 h varied in the range from 63% to 82% with the initial FA concentration of 100 mg/L. Differences in biofilm formation upon ECP enrichment were detected by using confocal laser scanning microscopy. These results contribute to the understanding of air biofiltration mechanisms in hydroponic systems.

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Section: Discussionmentioning

confidence: 99%

Formaldehyde Removal by Expanded Clay Pellets and Biofilm in Hydroponics of a Green Wall System

Žorža,

Ceļmalniece,

Sieriņa

et al. 2023

Sustainability

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“…Green infrastructure (and other related nature-based strategies) involves plant-based architectures with a role in botanical air biofiltration, climate control, wellbeing, and health, being an important contributor to urban sustainability [38][39][40][41][42]. Overall, carbon-neutrality is considered as the long-term goal of this urban sustainability concept [43].…”

Section: Challenges and Perspectivesmentioning

confidence: 99%

Physiological Investigations of the Plants Involved in Air Biofiltration: Study Case

Soreanu,

Tanase,

Mardari

et al. 2024

Sustainability

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In this study, the behavior of an aerial plant (Tillandsia xerographica) during air biofiltration was investigated by monitoring the trend of the CO2 concentration in the processed air as a response to a change in the environmental conditions. In this regard, a botanical biofilter equipped with T. xerographica was continuously operated with ambient air for about three weeks under different light intensity, air flow rate, ambient temperature, and relative humidity. The plant was able to decrease the CO2 concentration in the processed gas in both the presence/absence of light, as long as a regular alternate day/night regime was kept, this behavior being attributed to its specific plant metabolism. Overall, plant physiology under the influence of the above mentioned factors is pointed out, which in turn reveals the plant potential in urban air biofiltration, with the possibility to further address not only the carbon dioxide removal but also other trace gaseous contaminants in ambient air as well, improving the air quality and reducing the health risks associated with exposure to polluted air. Therefore, further modeling and optimization of this process, along with the investigation of the plant’s response under different contaminated environments, is expected to significantly contribute to the development of new such versatile biofilters for air treatment.

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“…Buildings represent one-third of the world's energy consumption and have the potential to significantly reduce carbon emissions [3,4]. In order to achieve this goal, "smart buildings" equipped with innovative air conditioning systems and renewable sources need to be implemented [5].…”

Section: Introductionmentioning

confidence: 99%

Solar-Assisted Heat Pump with Electric and Thermal Storage: The Role of Appropriate Control Strategies for the Exploitation of the Solar Source

Perrella,

Bisegna,

Bevilacqua

et al. 2024

Buildings

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In the EU, the building sector is responsible for 40% of the global energy consumption for final uses and 36% of the carbon dioxide (CO2) emissions. Heat pumps allow for the replacement of conventional systems based on fossil fuels with the perspective of combining PV and solar thermal collectors. In order to rationalize the use of the solar source, this paper examined the self-consumption electricity share, the CO2 equivalent emissions, and the domestic hot water demand covered by renewable sources which were determined in two opposite climatic conditions. These involved both electric and thermal storage systems and considered two different control strategies. The first is commonly used for the management of air-conditioning systems, the second was specifically conceived to maximize the exploitation of the solar source. Results showed that the latter significantly reduced grid dependence in both locations, determining the direct satisfaction of 76% of the thermal and electric loads through the PV self-consumption, determined by 18 kWp of installed PV and a battery capacity of 24 kWh. In terms of equivalent CO2 emissions, when the two control strategies were compared, a remarkable reduction in emissions was registered for the latter, with percentages ranging between 8% and 36% as a function of PV surface and battery capacity. The analysis of domestic hot water supplies revealed disparities between the two localities: the colder first, relied more on heat pumps for water heating, while the warmer second, benefitted from the large availability of solar radiation.

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Impact of the Innovative Green Wall Modular Systems on the Urban Air

Cited by 5 publications

References 29 publications

Formaldehyde Removal by Expanded Clay Pellets and Biofilm in Hydroponics of a Green Wall System

Formaldehyde Removal by Expanded Clay Pellets and Biofilm in Hydroponics of a Green Wall System

Physiological Investigations of the Plants Involved in Air Biofiltration: Study Case

Solar-Assisted Heat Pump with Electric and Thermal Storage: The Role of Appropriate Control Strategies for the Exploitation of the Solar Source

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