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Studying the effect of municipal and industrial wastewater on the canopy and antioxidant enzymes of some trees in the green space of Ardakan Pellet Factory
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Mahsa Arami   , Jalal Gholamnezhad * , Mostafa Shirmardi |
| , jgholamnezhad@ardakan.ac.ir |
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Abstract: (152 Views) |
The lack of water in most regions of the country and even the world has made researchers pay attention to the reuse of municipal and industrial wastewater. One of the ways to save money is to use industrial effluents and municipal sewage to create and develop green spaces. Ardakan Pellet Making Industrial Complex (Chadermelo) is one of the industries that, in line with the management of this crisis, irrigates the green space created there with the water resources available at the factory site, i.e. industrial effluent and treated urban sewage. The purpose of this study is to investigate some morphological and physiological characteristics of a number of plants cultivated in this complex, which are irrigated with the mentioned water sources or gray water. This research is in the form of a complete randomized block design with three water treatments including three types of urban sewage treatment water, industrial wastewater and a mixture of both types of water in three replications for six plant species: olive, eucalyptus, pomegranate, Tehran pine, Egyptian silk and bitter elder. Investigating the morphological traits of Taj Gostar and measuring the physiological traits including measuring the amount of total protein and antioxidant enzymes (catalase and peroxidase) were done. The results showed that among the three applied treatments, the treatment with treated urban wastewater resulted in a significant increase in the Taj Gostar trait of pomegranate, olive, elderberry, and Egyptian silk trees. According to the obtained results, the largest canopy (114.95 cm) in pomegranate was related to the treatment with sewage, and the smallest (111.93 cm) was in the trees treated with industrial wastewater. In the case of olive and bitter elder, it showed that the largest crown (131.36 and 214.33 cm, respectively) of the olive tree was related to the treatment with sewage, and the lowest was in the treatment with industrial effluent in the case of olive (129.40). cm) and in the case of bitter elder of the mixed treatment (industrial effluent and sewage) it was observed at the rate of 196.66 cm. In the case of eucalyptus and pine trees, almost a similar trend was observed. The results of measuring the amount of total protein showed that the highest amount of protein (25.07 mg/kg) of pomegranate was in the treatment with industrial wastewater and the lowest amount (23.47 mg/kg) was related to the treatment of trees with wastewater. There was no significant difference with mixed water treatment. A similar trend was observed for olive, pine, eucalyptus and Egyptian silk. The results related to the measurement of two antioxidant enzymes, catalase and peroxidase, showed that for all the trees, the highest activity of enzymes was in the treatment of industrial effluents and the lowest was related to the treatment of sewage. Considering the results of this study, the use of treated municipal wastewater for irrigation of green spaces in the Gol-e-Gohar pelletizing industrial complex (Ardakan), particularly for pomegranate, olive, Russian olive, and Egyptian silk tree, led to a significant increase in canopy growth (crown diameter), indicating better adaptation of these plants to this water source. On the other hand, while industrial effluent increased the activity of antioxidant enzymes (catalase and peroxidase) and protein levels in some species, it had a negative effect on canopy growth.
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Article number: 1 |
| Keywords: Canopy, Total protein, Catalase, Peroxidase, Industrial wastewater |
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Full-Text [PDF 815 kb]
(71 Downloads)
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Type of Study: Research |
Subject:
Special
Received: 2024/07/16 | Accepted: 2025/08/2 | Published: 2026/03/11
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