Performance and mechanism of high-speed vermicomposting of dewatered sludge using a new type of laboratory earthworm reactor

Hu, Xianwei; Zhang, Tong; Tian, Ganpei; Zhang, Limin; Bian, Bo

doi:10.1007/s11356-021-12438-3

Cited by 6 publications

(2 citation statements)

References 53 publications

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“…According to Paradelo et al [23] a GI > 80 is a good indicator at which no phytotoxicity of the tested product is observed. Our study's vermicompost had no toxic effect on germination of barley seeds, and its GI was calculated to be 119.85, in accordance with previous studies, in which vermicomposts of different initial materials showed no phytotoxicity [79][80][81]. Before applying vermicompost products to soil, it is highly suggested to check potential phytotoxicity to avoid environmental risks.…”

Section: Germination Indexsupporting

confidence: 86%

Physicochemical Changes and Microbiome Associations during Vermicomposting of Winery Waste

et al. 2023

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Annually, the wine industry produces high amounts of waste that can be toxic if disposed of without pretreatment. Vermicomposting is an efficient and low-cost method of decomposing organic matter using earthworms under controlled conditions. The organic substrate used in the vermicomposting process affects microbial populations and reflects the dynamics of enzymatic activity, decomposition of organic matter, and nitrogen transformations. However, the microbiome associations during the whole process are still unexplored. Thus, the aim of the present study was to investigate physicochemical, enzymatic, microbial, and microbiome activities during vermicomposting of winery waste. In this vein, a rectangular vermireactor with Eisenia andrei and Eisenia fetida earthworms, loaded with winery waste, was used. At the end of the process, the carbon/nitrogen (C/N) ratio was decreased, the total nitrogen was increased, the pH was neutralized and excess enzymatic activities were recorded. The bacterial and fungal phyla detected by next-generation sequencing analysis identified Armatimonadetes, Bacteriodetes, Candidatus saccharibacteria, Chloroflexi, Cyanobacteria, Planctomycetes, and Proteobacteria and Ascomycota, Basidiomycota, Chytridiomycota, Entomophthoromycota, Glomeromycota, and Mucoromycota, respectively. Physicochemical and microbial changes occurring during vermicomposting of winery waste, along with the microbiome diversity at the beginning and end of the process, may lead to a better understanding of winery-waste biotransformation into effective biofertilizer.

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Section: Germination Indexsupporting

confidence: 86%

Physicochemical Changes and Microbiome Associations during Vermicomposting of Winery Waste

et al. 2023

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“…Durante el proceso de compostaje, bajo la acción de diversos microorganismos y factores ambientales, los residuos orgánicos se descomponen en CO 2 , agua, iones minerales y materia orgánica estabilizada, rica en substancias húmicas (Ferraz-Ramos et al 2022, Hu et al 2021. En el compostaje la producción de CO 2 se encuentra directamente correlacionada con la respiración microbiana aerobia y, por lo tanto, la actividad biológica de los grupos microbianos aerobios directamente involucrados en la descomposición o degradación de la materia orgánica (Kalamdhad et al 2008).…”

Section: Introductionunclassified

Producción de chile jalapeño en mini-túnel en respuesta a la fertilización sintética, orgánica y carbónica

Ayala-Tafoya

Chaidez

Parra-Delgado

et al. 2022

Ecosist. Recur. Agropec.

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El uso de abonos orgánicos en sistemas de fertilización integrada es una alternativa para la recuperación de la fertilidad de los suelos y elevar la productividad de los cultivos. El objetivo fue determinar la contribución de fertilizantes sintéticos y orgánicos, así como del CO2 producido durante el compostaje, en el crecimiento de las plantas y el rendimiento de chile jalapeño cultivado en mini-túnel. Se usó un diseño de bloques al azar con ocho tratamientos y tres repeticiones. Las variables evaluadas fueron: concentración de CO2 en el aire interno del mini-túnel; altura de planta; diámetro de tallo; verdor foliar; peso seco de raíces, tallos, hojas y total por planta; rendimiento de frutos, total y de calibres comerciales. Los tratamientos con fertilizantes sintéticos + lombricomposta + CO2 de compostaje (T1), lombricomposta + CO2 de compostaje (T5), fertilizantes sintéticos + CO2 de compostaje (T3), y CO2 de compostaje (T7), incrementaron la concentración de dióxido de carbono dentro de los mini-túneles en 142, 113.8, 78.9 y 66.6%, respectivamente, comparados con el testigo positivo (T4), en el cual solo se usó fertilizantes sintéticos (378.6 ppm). T1, T2 (fertilizantes sintéticos + lombricomposta) y T3, aumentaron el peso seco de planta en 51.2, 31.1 y 8.4%, y en 50, 24 y 12.1% el rendimiento total, en comparación con las mismas variables obtenidas en T4: 104.4 g planta-1 y 41.2 t ha-1, respectivamente. La producción de chile jalapeño mejoró significativamente con la adición de lombricomposta y/o CO2 de compostaje a la fertilización convencional sintética.

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A review of the vermicomposting process of organic and inorganic waste in soils: Additives effects, bioconversion process, and recommendations

Ratnasari

Syafiuddin

Mehmood

et al. 2023

Bioresource Technology Reports

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Performance and mechanism of high-speed vermicomposting of dewatered sludge using a new type of laboratory earthworm reactor

Cited by 6 publications

References 53 publications

Physicochemical Changes and Microbiome Associations during Vermicomposting of Winery Waste

Physicochemical Changes and Microbiome Associations during Vermicomposting of Winery Waste

Producción de chile jalapeño en mini-túnel en respuesta a la fertilización sintética, orgánica y carbónica

A review of the vermicomposting process of organic and inorganic waste in soils: Additives effects, bioconversion process, and recommendations

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