Physico-chemical changes and maturity evaluation of composts from wood residue mixed with sewage sludge and chicken manure
Purpose Using the effective approaches for modifying the recycled wood as a novel bulky agent improves the quality of soil amendment. This study aimed to compare the stability and maturity of the soil amendments produced by the compostation of forest industrial waste and sewage sludge on seed germin...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Islamic Azad University-Isfahan (Khorasgan) Branch- Iran
2021-06-01
|
| Series: | International Journal of Recycling of Organic Waste in Agriculture |
| Subjects: | |
| Online Access: | http://ijrowa.khuisf.ac.ir/article_681128_92966b71bd91795b71c1fcc34b8620e8.pdf |
| _version_ | 1797370232019353600 |
|---|---|
| author | Mohammad Hossein Saghi Payam Ghorbannezhad Abotaleb Bay Farangis Saeidi |
| author_facet | Mohammad Hossein Saghi Payam Ghorbannezhad Abotaleb Bay Farangis Saeidi |
| author_sort | Mohammad Hossein Saghi |
| collection | DOAJ |
| description | Purpose Using the effective approaches for modifying the recycled wood as a novel bulky agent improves the quality of soil amendment. This study aimed to compare the stability and maturity of the soil amendments produced by the compostation of forest industrial waste and sewage sludge on seed germination. Method Three materials, namely sawdust, sewage sludge, and chicken manure were mixed at different ratios (dry weight basis) to reach the initial bulk density of 0.40 Kg.L-1, the temperature of 30 °C, the C/N ratio of 25, and the moisture content of 60 %. A pilot-scale composting process was applied to monitor the aeration rate, temperature, and moisture contents during the process over time. The comparison of physico-chemical, phytotoxicity, and germination indices among the samples was performed in three repetitions. Results The results of this study indicated that the sustainable conditions (i.e., the temperature of 70 °C, aeration rate of 0.30 L.Kg-1DM.min-1, and moisture content of 50-60 %) can have a significant effect on the thermophilic stage for compost curing without any inhibitory repercussion. Increasing the germination index of cress (Lepidium sativum) up to 79 % proved that the toxicity of industrial sewage sludge was declined through the elimination of heavy metals. Conclusion This study revealed that the availability of bulky agents such as wood residue can reinforce the microbial activity by continuously decreasing the C/N ratio to the minimum value of 13.2. |
| first_indexed | 2024-03-08T17:58:23Z |
| format | Article |
| id | doaj.art-87b25c6aad35424796b93031ae1fb148 |
| institution | Directory Open Access Journal |
| issn | 2195-3228 2251-7715 |
| language | English |
| last_indexed | 2024-03-08T17:58:23Z |
| publishDate | 2021-06-01 |
| publisher | Islamic Azad University-Isfahan (Khorasgan) Branch- Iran |
| record_format | Article |
| series | International Journal of Recycling of Organic Waste in Agriculture |
| spelling | doaj.art-87b25c6aad35424796b93031ae1fb1482024-01-02T03:25:12ZengIslamic Azad University-Isfahan (Khorasgan) Branch- IranInternational Journal of Recycling of Organic Waste in Agriculture2195-32282251-77152021-06-0110217518410.30486/ijrowa.2021.1900853.1081681128Physico-chemical changes and maturity evaluation of composts from wood residue mixed with sewage sludge and chicken manureMohammad Hossein Saghi0Payam Ghorbannezhad1Abotaleb Bay2Farangis Saeidi3Department of Environmental Health Engineering, Sabzevar University of Medical Science, Sabzevar, IranDepartment of Biorefinery Engineering, Faculty of New Technologies Engineering, Shahid Beheshti University, Tehran, IranEnvironmental Health Research Center, Golestan University of Medical Sciences, Golestan, Grogan, IranStudent Research Committee, Sabzevar University of Medical Sciences, Sabzevar, IranPurpose Using the effective approaches for modifying the recycled wood as a novel bulky agent improves the quality of soil amendment. This study aimed to compare the stability and maturity of the soil amendments produced by the compostation of forest industrial waste and sewage sludge on seed germination. Method Three materials, namely sawdust, sewage sludge, and chicken manure were mixed at different ratios (dry weight basis) to reach the initial bulk density of 0.40 Kg.L-1, the temperature of 30 °C, the C/N ratio of 25, and the moisture content of 60 %. A pilot-scale composting process was applied to monitor the aeration rate, temperature, and moisture contents during the process over time. The comparison of physico-chemical, phytotoxicity, and germination indices among the samples was performed in three repetitions. Results The results of this study indicated that the sustainable conditions (i.e., the temperature of 70 °C, aeration rate of 0.30 L.Kg-1DM.min-1, and moisture content of 50-60 %) can have a significant effect on the thermophilic stage for compost curing without any inhibitory repercussion. Increasing the germination index of cress (Lepidium sativum) up to 79 % proved that the toxicity of industrial sewage sludge was declined through the elimination of heavy metals. Conclusion This study revealed that the availability of bulky agents such as wood residue can reinforce the microbial activity by continuously decreasing the C/N ratio to the minimum value of 13.2.http://ijrowa.khuisf.ac.ir/article_681128_92966b71bd91795b71c1fcc34b8620e8.pdfwood residueindustrial sewage sludgeco-compostingphytotoxicitygermination index |
| spellingShingle | Mohammad Hossein Saghi Payam Ghorbannezhad Abotaleb Bay Farangis Saeidi Physico-chemical changes and maturity evaluation of composts from wood residue mixed with sewage sludge and chicken manure International Journal of Recycling of Organic Waste in Agriculture wood residue industrial sewage sludge co-composting phytotoxicity germination index |
| title | Physico-chemical changes and maturity evaluation of composts from wood residue mixed with sewage sludge and chicken manure |
| title_full | Physico-chemical changes and maturity evaluation of composts from wood residue mixed with sewage sludge and chicken manure |
| title_fullStr | Physico-chemical changes and maturity evaluation of composts from wood residue mixed with sewage sludge and chicken manure |
| title_full_unstemmed | Physico-chemical changes and maturity evaluation of composts from wood residue mixed with sewage sludge and chicken manure |
| title_short | Physico-chemical changes and maturity evaluation of composts from wood residue mixed with sewage sludge and chicken manure |
| title_sort | physico chemical changes and maturity evaluation of composts from wood residue mixed with sewage sludge and chicken manure |
| topic | wood residue industrial sewage sludge co-composting phytotoxicity germination index |
| url | http://ijrowa.khuisf.ac.ir/article_681128_92966b71bd91795b71c1fcc34b8620e8.pdf |
| work_keys_str_mv | AT mohammadhosseinsaghi physicochemicalchangesandmaturityevaluationofcompostsfromwoodresiduemixedwithsewagesludgeandchickenmanure AT payamghorbannezhad physicochemicalchangesandmaturityevaluationofcompostsfromwoodresiduemixedwithsewagesludgeandchickenmanure AT abotalebbay physicochemicalchangesandmaturityevaluationofcompostsfromwoodresiduemixedwithsewagesludgeandchickenmanure AT farangissaeidi physicochemicalchangesandmaturityevaluationofcompostsfromwoodresiduemixedwithsewagesludgeandchickenmanure |