Evaluation of the microbiological quality of wastewater effluentirrigated maize

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FARHADKHANI MARZIEH; NIKAEEN MAHNAZ; YADEGARFAR GHASEM; MOHAMMADI MOGHADAM FAZEL

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Journal: SCIENTIFIC JOURNAL OF KURDISTAN UNIVERSITY OF MEDICAL SCIENCES Year:2020 | Volume:24 | Issue:6 (104) Page(s): 93-105

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Title

Evaluation of the microbiological quality of wastewater effluentirrigated maize

Author(s)

FARHADKHANI MARZIEH | NIKAEEN MAHNAZ | YADEGARFAR GHASEM | MOHAMMADI MOGHADAM FAZEL | Issue Writer Certificate

Keywords

Secondary effluentQ1

IrrigationQ2

Escherichia coliQ2

Pathogenic bacteriaQ2

MaizeQ2

Maize leavesQ1

Abstract

Background and Aim: Water crisis in many regions of the world especially arid and semiarid areas such as Iran, is an important obstacle for socioeconomic development and food security. Under such circumstances, wastewater reuse in agriculture can be regarded an important alternative water source. However, treated wastewater may contain some types of pathogenic microorganisms which can threaten human health. In the present study we compared the impacts of treated wastewater (TWW) and tap water Irrigation on microbiological quality of soil and crops (Maize and Maize leaves) through a furrow Irrigation system in an experimental field. Materials and Methods: Total and fecal coliforms and Escherichia coli were monitored as indicator bacteria in TWW, irrigated soil and harvested Maize and Maize leaves. We investigated the presence of Salmonella and Shigella by using a combination of culture and molecular methods. Statistical analyses were performed by SPSS 22. 0 software. P<0. 05 was considered statistically significant. The Mann-Whitney test was used to evaluate the difference of microbial parameters in the plots irrigated with the two types of water. Results: The microbiological quality of wastewater in terms of mean concentration of E. coli (3. 5 Log MPN/100 ml) was compatible with that recommended by the world health organization (WHO) for Irrigation of fast-growing crops (≤ 105 E. coli per 100 ml). Although, the microbiological quality of soil was affected by TWW Irrigation (p < 0. 05), a relatively low concentration of E. coli was detected in soil. Harvested Maize had no microbial contamination with E. coli. However, one sample of wastewater-irrigated Maize leaves was contaminated with E. coli. The TWW, soil and crop samples were not positive for Pathogenic bacteria. Conclusion: According to the results, TWW could be used as an alternative source for Irrigation of Maize.

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APA: Copy

FARHADKHANI, MARZIEH, NIKAEEN, MAHNAZ, YADEGARFAR, GHASEM, & MOHAMMADI MOGHADAM, FAZEL. (2020). Evaluation of the microbiological quality of wastewater effluentirrigated maize. SCIENTIFIC JOURNAL OF KURDISTAN UNIVERSITY OF MEDICAL SCIENCES, 24(6 (104) ), 93-105. SID. https://sid.ir/paper/76541/en

Vancouver: Copy

FARHADKHANI MARZIEH, NIKAEEN MAHNAZ, YADEGARFAR GHASEM, MOHAMMADI MOGHADAM FAZEL. Evaluation of the microbiological quality of wastewater effluentirrigated maize. SCIENTIFIC JOURNAL OF KURDISTAN UNIVERSITY OF MEDICAL SCIENCES[Internet]. 2020;24(6 (104) ):93-105. Available from: https://sid.ir/paper/76541/en

IEEE: Copy

MARZIEH FARHADKHANI, MAHNAZ NIKAEEN, GHASEM YADEGARFAR, and FAZEL MOHAMMADI MOGHADAM, “Evaluation of the microbiological quality of wastewater effluentirrigated maize,” SCIENTIFIC JOURNAL OF KURDISTAN UNIVERSITY OF MEDICAL SCIENCES, vol. 24, no. 6 (104) , pp. 93–105, 2020, [Online]. Available: https://sid.ir/paper/76541/en

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