Evaluation of stability and maturity indices during composting process from a mixture of poultry waste and sawdust by windrow method

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Yavari Asghar; MORADI NAZAR MEHDI; SHARAFI SEYEDEH MARYAM; NAFEZ AMIR HOSSEIN; PIRSAHEB MEGHDAD

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Journal: IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT Year:2022 | Volume:15 | Issue:1 Page(s): 1-16

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Title

Evaluation of stability and maturity indices during composting process from a mixture of poultry waste and sawdust by windrow method

Author(s)

Keywords

Composting

Windrow method

Poultry waste

Sawdust

Stability indices

Abstract

Background and Objective: It is important to determine the quality of the compost to use compost properly. The aim of this study was to determine the effect of mixing ratio of bulking agent on stability and maturity indices in Poultry waste compost. Materials and Methods: Two piles of Sawdust mixture with Poultry wastes and volume ratios of 1: 1 (W1) and 2: 1 (W2) were prepared by Windrow method and a pile containing poultry manure was used as control (W0). In order to determine the stability and maturity indices in compost, the most important physicochemical and biological parameters were studied. Results: The thermophilic phase lasted about 7 weeks for W1 and about 4 weeks for W2. The initial C/N ratios in the W0, W1 and W2 were 27. 10, 31. 40 and 56. 24, respectively, which eventually reached less than 20. The reduction of organic matter in the three piles was 8. 30%, 62. 59% and 85. 53%, respectively. The thermophilic phase caused a sharp decrease in the population of indicator and pathogenic microorganisms in all piles. The highest dehydrogenase activity in W1 pile was 2. 95 mgTPF/gDW. h and by decreasing temperature until the last day, its value decreased to 0. 29 mgTPF/gDW. h. Conclusion: The best ratio for mixing Sawdust with poultry manure was 1: 1 (v: v). Microbial and enzymatic activities are useful parameters for monitoring poultry Composting process and determining the rate of compost stability, and the use of this compost in agriculture will improve soil quality.

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APA: Copy

Yavari, Asghar, MORADI NAZAR, MEHDI, SHARAFI, SEYEDEH MARYAM, & PIRSAHEB, MEGHDAD. (2022). Evaluation of stability and maturity indices during composting process from a mixture of poultry waste and sawdust by windrow method. IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT, 15(1 ), 1-16. SID. https://sid.ir/paper/960361/en

Vancouver: Copy

Yavari Asghar, MORADI NAZAR MEHDI, SHARAFI SEYEDEH MARYAM, PIRSAHEB MEGHDAD. Evaluation of stability and maturity indices during composting process from a mixture of poultry waste and sawdust by windrow method. IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT[Internet]. 2022;15(1 ):1-16. Available from: https://sid.ir/paper/960361/en

IEEE: Copy

Asghar Yavari, MEHDI MORADI NAZAR, SEYEDEH MARYAM SHARAFI, and MEGHDAD PIRSAHEB, “Evaluation of stability and maturity indices during composting process from a mixture of poultry waste and sawdust by windrow method,” IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT, vol. 15, no. 1 , pp. 1–16, 2022, [Online]. Available: https://sid.ir/paper/960361/en

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