Phytoremediation of BTEX from indoor air by Hyrcanian plants
Journal Title: Environmental Health Engineering and Management Journal - Year 2019, Vol 6, Issue 4
Abstract
Background: Phytoremediation is one of the available and simple techniques for removing benzene, toluene, ethylbenzene, and xylene (BTEX) from indoor air. This study aimed to evaluate phytoremediation of low concentrations of BTEX by Hyrcanian plants including Ruscus hyrcanus and Danae racemosa. Methods: The test chamber was used to evaluate the removal of BTEX. Benzene, toluene, ethylbenzene, and xylene were injected into the chamber using Gastight syringes (Hamilton) to generate the concentration of 10 (benzene), 20 (toluene), 20 (ethylbenzene), and 50 (xylene) μL/L Results: Ruscus hyrcanus was able to remove BTEX (10, 20, 20, and 50 μL/L) from air after 3 days. D. racemosa could uptake BTEX (10, 20, 20, and 50 μL/L) from air after 4 days. Removal efficiency was calculated based on leaf area and volume of the chamber. R. hyrcanus showed the highest removal efficiency ranged from 8.5075 mg/m3/h.cm2 for benzene to 86.66 mg/m3/h.cm2 for xylene. The increase in BTEX phytoremediation was assessed after repeated exposures. A significant phytoremediation efficiency was obtained after the third injection of BTEX to the chamber. Afterwards, the effects of BTEX on anatomical and morphological structure of plants were studied. The results of Photomicrography showed that tissue structures of leaves and stems changed. Study of D. racemosa and R. hyrcanus stems showed that vascular bundles also changed. The development of crystal in vacuole of spongy parenchyma was the main anatomical change of R. hyrcanus and D. racemose compared to the control samples. Conclusion: It can be concluded that R. hyrcanus and D. racemosa can be used for phytoremediation of indoor air pollution.
Authors and Affiliations
Mahta Fooladi , Roxana Moogouei , Seyed Ali Jozi , Farideh Golbabaei , Golnaz Tajadod
Keywords
Related Articles
- EP ID EP676157
- DOI 10.15171/EHEM.2019.26
- Views 249
- Downloads 0
Autotrophic denitrification of synthetic nitrate-contaminated groundwater in up-flow fixed-bed bioreactor by pumice as porous media
Background: Increasing nitrate concentrations in groundwater resources is considered a common environmental and public health problem worldwide. In this research, an autotrophic up-flow bioreactor with pumice as media wa...
Magnetic nano-biocomposite CuFe2O4@methylcellulose (MC) prepared as a new nano-photocatalyst for degradation of ciprofloxacin from aqueous solution
Background: Antibiotics such as ciprofloxacin (CIP) are even more important in bacterial resistance, even at low concentrations. The aim of this research was to synthesize CuFe2O4@methylcellulose (MC) as a new nano-photo...
Peptides on a rescue mission against the hazardous cidal chemicals used in Eastern Indian Agriculture: An in-silico approach based on field survey in 2020
Background: The use of poisonous agrochemicals is both necessary and menacing for a farmer. The long-term hazards of chemicals can even be life-threatening to many people. Recently, the adverse effects of such chemical...
Evaluation of groundwater vulnerability to pollution using DRASTIC, composite DRASTIC, and nitrate vulnerability models
Background: Groundwater protection against pollution is a very important issue. Groundwater vulnerability maps are useful tools for protecting aquifers and assessing the potential for contamination. Therefore, the purp...
Public perception on environmental noise pollution: A case study in Zaria city, Kaduna state, Nigeria
Background: One of the key indicators of the degradation of the environment is the noise level. This has necessitated this study on the evaluation of the public, perceptional awareness, sources, effects, and mitigation m...