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Title

Feasibility study of green wastes composting with digested and dewatering sludge from municipal wastewater treatment plant in Iran

Feasibility study of green wastes composting with digested and dewatering sludge from municipal wastewater treatment plant in Iran
Year: 1394
COI: JR_EHEM-2-3_007
Language: EnglishView: 530
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Authors

Neamat Jaafarzadeh haghighi Fard - Professor, Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran- Professor, Department of Environmental Health Engineering, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahv
Behnam Moradi - BSc, Department of Environmental Health Engineering, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran- Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
Mokhtar Abbasi - BSc, Department of Environmental Health Engineering, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
Rahman Alivar Babadi - BSc, Department of Environmental Health Engineering, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran

Abstract:

Background: Composting as a waste management technology is becoming more widespread. The purpose of this study was to assess the feasibility and to find the most effective composting process for the ratio of green waste, digested and dewatered sludge from Chonibieh wastewater treatment plant in the west region of Ahvaz.Methods: The composting time was 23 days and the evaluated parameters in this period of the study were organic carbon, total nitrogen, phosphorus, carbon to nitrogen ratio (C/N), moisture content and pH. The C/N ratio was maintained at 30 with weight:weight ratio of 1:1, 1:2, 1:3 (digested and dewatered sludge to green waste).Results: It was observed that vessel R3 produced higher quality of compost with final total nitrogen (1.28%), final total phosphorus (0.71%), final total organic carbon (TOC) (25.78%) and C/N (20.65%) within the 23 days of composting. While vessel R1 produced higher final total nitrogen and total phosphorus with lower amount of total coliform indicating suitable quality of composting. Therefore, the results showed that the characteristics of dewatered sludge mixed with green waste proportion of green waste significantly influenced the compost quality and process dynamics. The results also showed that the quality of final products in all the conditions was in agreement with Global Organic Textile Standard (GOTS) and World Health Organization (WHO) guidelines. However, the moisture content ratios were lower than the mentioned guidelines. With regards to microbial quality, all three ratios were in agreement with US Environmental Protection Agency (EPA) and Iranian guidelines.Conclusion: It is suggested that the final product of composting can be safely used in farmland and green space.

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This Paper COI Code is JR_EHEM-2-3_007. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

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Jaafarzadeh haghighi Fard, Neamat and Moradi, Behnam and Abbasi, Mokhtar and Alivar Babadi, Rahman,1394,Feasibility study of green wastes composting with digested and dewatering sludge from municipal wastewater treatment plant in Iran,https://civilica.com/doc/488033

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Type of center: علوم پزشکی
Paper count: 3,355
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