Investigation of Some Qualitative Characteristics of Sludge Produced in Hamadan Wastewater Treatment Plant and Its Application in Agricultural Lands
In this study, qualitative characteristics of the sludge produced in Hamadan wastewater treatment plant and the feasibility of its application in agricultural lands were investigated. Samples were taken from the primary and secondary sludge and indices such as VS/TS, PH, TKN, COD, TKN, SOUR, Na, Ca,...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Hamadan University of Medical Sciences
2019-06-01
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| Series: | Avicenna Journal of Environmental Health Engineering |
| Subjects: | |
| Online Access: | http://ajehe.umsha.ac.ir/PDF/ajehe-6-1.pdf |
| _version_ | 1797670144352190464 |
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| author | Reza Shokoohi Samira Moradi Zhila Ghavami Azam Nadali Raheleh Amiri |
| author_facet | Reza Shokoohi Samira Moradi Zhila Ghavami Azam Nadali Raheleh Amiri |
| author_sort | Reza Shokoohi |
| collection | DOAJ |
| description | In this study, qualitative characteristics of the sludge produced in Hamadan wastewater treatment plant and the feasibility of its application in agricultural lands were investigated. Samples were taken from the primary and secondary sludge and indices such as VS/TS, PH, TKN, COD, TKN, SOUR, Na, Ca, SAR, heavy metals and biological properties (the mean fecal coliform count and the number of parasitic eggs) were measured. The results were compared with the United States Environmental Protection Agency (US EPA) standards (40 FCR-503). The results showed that the VS/TS ratio of the raw sludge was 0.8, 0.55, and 0.55 and that of the secondary sludge was 0.65, 0.28, and 0.32 for fall, winter, and summer, respectively. The average concentration of COD, TKN, SOUR, Na, and Ca for the initial sludge was 51283, 107, 0.50, 609, and 952 and for secondary sludge, it was 35595, 81, 4.90, 306, and 493 mg/L, respectively. The MPN for primary and secondary sludge was determined to be 19.83 × 106 and 186 × 106 , respectively and the average number of parasite eggs in primary and secondary sludge was 7.05 and 7.2 in 4 g of dry solids. Entamoeba coli had the highest number of parasite. The results of this study showed that the highest concentration of heavy metals in the sludge was 21396 mg/kg. The values obtained for the above-mentioned indices and heavy metals were in standards range. The results of this study show that none of the primary and secondary sludge samples has been properly stabilized. The values obtained for biological characteristics of sludge were not in the standard range. Therefore, it was revealed that the use of sludge for agriculture needed more stabilization. |
| first_indexed | 2024-03-11T20:55:28Z |
| format | Article |
| id | doaj.art-13f21826f5794cad9c8a0139de24a498 |
| institution | Directory Open Access Journal |
| issn | 2423-4583 |
| language | English |
| last_indexed | 2024-03-11T20:55:28Z |
| publishDate | 2019-06-01 |
| publisher | Hamadan University of Medical Sciences |
| record_format | Article |
| series | Avicenna Journal of Environmental Health Engineering |
| spelling | doaj.art-13f21826f5794cad9c8a0139de24a4982023-09-30T09:39:34ZengHamadan University of Medical SciencesAvicenna Journal of Environmental Health Engineering2423-45832019-06-01611710.34172/ajehe.2019.01ajehe-4070Investigation of Some Qualitative Characteristics of Sludge Produced in Hamadan Wastewater Treatment Plant and Its Application in Agricultural LandsReza Shokoohi0Samira Moradi1Zhila Ghavami2Azam Nadali3Raheleh Amiri4Social Determinants of Health Research Center, Department of Environmental Health Engineering, School of Public Health, Hamadan University of Medical Sciences, Hamadan, IranDepartment of Environmental Health Engineering, School of Public Health, Hamadan University of Medical Sciences Hamadan, Hamadan, IranDepartment of Environmental Health Engineering, School of Public Health, Hamadan University of Medical Sciences Hamadan, Hamadan, IranDepartment of Environmental Health Engineering, School of Public Health, Hamadan University of Medical Sciences Hamadan, Hamadan, IranDepartment of Environmental Health Engineering, School of Public Health, Hamadan University of Medical Sciences Hamadan, Hamadan, IranIn this study, qualitative characteristics of the sludge produced in Hamadan wastewater treatment plant and the feasibility of its application in agricultural lands were investigated. Samples were taken from the primary and secondary sludge and indices such as VS/TS, PH, TKN, COD, TKN, SOUR, Na, Ca, SAR, heavy metals and biological properties (the mean fecal coliform count and the number of parasitic eggs) were measured. The results were compared with the United States Environmental Protection Agency (US EPA) standards (40 FCR-503). The results showed that the VS/TS ratio of the raw sludge was 0.8, 0.55, and 0.55 and that of the secondary sludge was 0.65, 0.28, and 0.32 for fall, winter, and summer, respectively. The average concentration of COD, TKN, SOUR, Na, and Ca for the initial sludge was 51283, 107, 0.50, 609, and 952 and for secondary sludge, it was 35595, 81, 4.90, 306, and 493 mg/L, respectively. The MPN for primary and secondary sludge was determined to be 19.83 × 106 and 186 × 106 , respectively and the average number of parasite eggs in primary and secondary sludge was 7.05 and 7.2 in 4 g of dry solids. Entamoeba coli had the highest number of parasite. The results of this study showed that the highest concentration of heavy metals in the sludge was 21396 mg/kg. The values obtained for the above-mentioned indices and heavy metals were in standards range. The results of this study show that none of the primary and secondary sludge samples has been properly stabilized. The values obtained for biological characteristics of sludge were not in the standard range. Therefore, it was revealed that the use of sludge for agriculture needed more stabilization.http://ajehe.umsha.ac.ir/PDF/ajehe-6-1.pdfsludge characteristicssludge dischargesludge managementsludge applicationheavy metal of sludge |
| spellingShingle | Reza Shokoohi Samira Moradi Zhila Ghavami Azam Nadali Raheleh Amiri Investigation of Some Qualitative Characteristics of Sludge Produced in Hamadan Wastewater Treatment Plant and Its Application in Agricultural Lands Avicenna Journal of Environmental Health Engineering sludge characteristics sludge discharge sludge management sludge application heavy metal of sludge |
| title | Investigation of Some Qualitative Characteristics of Sludge Produced in Hamadan Wastewater Treatment Plant and Its Application in Agricultural Lands |
| title_full | Investigation of Some Qualitative Characteristics of Sludge Produced in Hamadan Wastewater Treatment Plant and Its Application in Agricultural Lands |
| title_fullStr | Investigation of Some Qualitative Characteristics of Sludge Produced in Hamadan Wastewater Treatment Plant and Its Application in Agricultural Lands |
| title_full_unstemmed | Investigation of Some Qualitative Characteristics of Sludge Produced in Hamadan Wastewater Treatment Plant and Its Application in Agricultural Lands |
| title_short | Investigation of Some Qualitative Characteristics of Sludge Produced in Hamadan Wastewater Treatment Plant and Its Application in Agricultural Lands |
| title_sort | investigation of some qualitative characteristics of sludge produced in hamadan wastewater treatment plant and its application in agricultural lands |
| topic | sludge characteristics sludge discharge sludge management sludge application heavy metal of sludge |
| url | http://ajehe.umsha.ac.ir/PDF/ajehe-6-1.pdf |
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