Deposition-mediated phytoremediation of nitrogen oxide emissions

Li, Mengzhen; Gu, Haping; Lam, Su Shiung; Sonne, Christian; Peng, Wanxi

doi:10.1016/j.envpol.2022.119706

Cited by 5 publications

(3 citation statements)

References 86 publications

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“…In addition, there are a number of studies that confirm the removal of other types of indoor air pollutants by potted plants. For example, in [63] the mechanisms of nitrogen oxide removal by dry deposition by potted plants were considered. The principle of absorption of pollutants by leaves and the factors affecting the removal of nitrogen oxides are substantiated, providing a theoretical basis for the selection of urban green vegetation.…”

Section: Reducing the Level Of Co 2 In A Roommentioning

confidence: 99%

Biotechnical approach for a continuous simultaneous increase of indoor and outdoor air quality

Tkachenko,

Mileikovskyi,

Konovaliuk

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Phytofiltration is the most sustainable way to achieve a better quality of inlet air in buildings in a polluted environment. But they don’t take into account the biorhythms of plants and pollute the inlet air with CO2 during breathing only time. We collected and analysed data about the biorhythms of plants. As a result, a new bi-directional phytofilter was offered for cleaning and oxygenation of the inlet ventilation air, and also to protect the environment by cleaning the exhaust air from different pollutants. The device has spaces with shifted illumination rhythms and a valve system. A controller directs the inlet air to the space(s), where plants release CO2. The outlet air runs through other spaces. Literature data show that in the less favourable case, the CO2 and oxygen emissions are balanced per day without overall CO2 gain to the environment. When plants are growing, they sequestrate CO2 to catch greenhouse gas emissions. Either natural light, artificial light, or a combination of the two can be used. While the second option simply demands one plant metabolism type, the first option needs a combination of CAM metabolism and other plants

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Section: Reducing the Level Of Co 2 In A Roommentioning

confidence: 99%

Biotechnical approach for a continuous simultaneous increase of indoor and outdoor air quality

Tkachenko,

Mileikovskyi,

Konovaliuk

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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show abstract

“…Elevated levels of nitrates in drinking water can also have adverse effects on human health, particularly in infants and the elderly [5]. Numerous studies have demonstrated that prolonged exposure to high levels of nitrates and nitrites, especially through the consumption of processed meats, is associated with the development of colorectal cancer [6]. Additionally, the proliferation of algae and aquatic plants due to elevated concentrations of NO 3 − in freshwater sources can exacerbate eutrophication [7].…”

Section: Introductionmentioning

confidence: 99%

Enhanced Nitrate Nitrogen Removal from Wastewater Using Modified Reed Straw: Adsorption Performance and Resource Utilization

Zhang,

Yang,

Tian

et al. 2024

Sustainability

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This paper presents a study on the efficient removal of nitrate nitrogen from wastewater using modified reed straw (MRS) and its subsequent resource utilization. The modification of the reed straw involved the introduction of branching quaternary amine groups to enhance its adsorption capacity for nitrate nitrogen. Experimental investigations were conducted to analyze the impact of packing height, flow rate, and initial solution concentration on the dynamic adsorption performance of the MRS. The results revealed that the maximum dynamic adsorption capacity of the MRS for nitrate nitrogen reached 14.76 mg/g. Furthermore, valuable nitrate nitrogen nutrient solution was successfully recovered through subsequent desorption experiments for resource recycling. Moreover, the application of the MRS led to notable enhancements in column height, fresh weight, chlorophyll content, and nitrogen content of the treated plants, indicating its efficacy in promoting plant growth. Overall, the findings demonstrate that MRS serves as a versatile adsorbent capable of efficient nitrate nitrogen removal and subsequent resource utilization.

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“…Nitrogen oxides (NO x ) are serious air pollutants discharged by mobile and fixed sources, which can give rise to environmental pollution and even do harm to human health . The selective catalytic reduction of NO x by ammonia (NH 3 –SCR) is a widely used approach to solve the air pollution problems; V 2 O 5 –WO 3 /TiO 2 materials are the most commonly used commercial catalysts in this process. , However, vanadium-based catalysts have obvious drawbacks, including narrow operating windows (300–400 °C), huge biological toxicity, easy poison in alkali metals, and low high-temperature N 2 selectivity.…”

Section: Introductionmentioning

confidence: 99%

La and Co Addition to Mn/TiO₂ Catalysts for Enhancing Low-Temperature Denitrification Activity and H₂O/SO₂ Tolerance

Wang,

Xie,

Liu

et al. 2023

Ind. Eng. Chem. Res.

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Manganese oxide-based denitrification catalysts supported by anatase with active components of Mn, Mn–La, Mn–Co, and Mn–La–Co oxides were prepared by a coprecipitation approach, and comparisons of their catalytic activities were made. The influences of Co and La addition on the NO removal and H2O/SO2 tolerance of the MnO x catalysts were investigated. The reasons for the different catalytic performances were investigated by using XRD, XPS, H2-TPR, and NH3-TPD experiments. The reaction mechanism of selective catalytic reduction of NO x with ammonia was determined by in situ diffuse reflectance infrared Fourier transform spectroscopy. Experiments proved that the addition of Co and La expanded the active temperature window (120–369 °C) and improved the sulfur tolerance due to the increase in the contents of Mn4+ and surface-active oxygen, along with the enhancement of the redox capacity of the catalyst. Different NH3–SCR reaction mechanisms were found over the catalysts Mn–La–Co/TiO2 and Mn/TiO2: the former was both the Eley–Rideal and Langmuir–Hinshelwood mechanisms, while the latter followed only the Langmuir–Hinshelwood mechanism. In addition, a “fast SCR” reaction mechanism was active for all catalysts. This work provides useful insights for improving the sulfur tolerance of manganese-based denitrification catalysts.

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Deposition-mediated phytoremediation of nitrogen oxide emissions

Cited by 5 publications

References 86 publications

Biotechnical approach for a continuous simultaneous increase of indoor and outdoor air quality

Biotechnical approach for a continuous simultaneous increase of indoor and outdoor air quality

Enhanced Nitrate Nitrogen Removal from Wastewater Using Modified Reed Straw: Adsorption Performance and Resource Utilization

La and Co Addition to Mn/TiO₂ Catalysts for Enhancing Low-Temperature Denitrification Activity and H₂O/SO₂ Tolerance

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Deposition-mediated phytoremediation of nitrogen oxide emissions

Cited by 5 publications

References 86 publications

Biotechnical approach for a continuous simultaneous increase of indoor and outdoor air quality

Biotechnical approach for a continuous simultaneous increase of indoor and outdoor air quality

Enhanced Nitrate Nitrogen Removal from Wastewater Using Modified Reed Straw: Adsorption Performance and Resource Utilization

La and Co Addition to Mn/TiO2 Catalysts for Enhancing Low-Temperature Denitrification Activity and H2O/SO2 Tolerance

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Product

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La and Co Addition to Mn/TiO₂ Catalysts for Enhancing Low-Temperature Denitrification Activity and H₂O/SO₂ Tolerance