Environmental application and phytotoxicity of anaerobic digestate from pig farming by in vitro and in vivo trials

Lencioni, Giacomo; Imperiale, Davide; Cavirani, N.; Marmiroli, Nelson; Marmiroli, Marta

doi:10.1007/s13762-016-1088-y

Cited by 28 publications

(13 citation statements)

References 48 publications

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“…At the same time, when used at 2.5%, both GS and RE were not significantly different compared to the control, except for the GS of radish. These findings are in agreement with Lencioni et al [ 35 ], who reported that digestate concentrations ranging between 2 and 3% are able to stimulate the germination and early life stages. The same authors also stated that it is strongly advisable to avoid direct contact with germinating seeds to minimize the eventual phytotoxic effects of digestate.…”

Section: Resultssupporting

confidence: 93%

Physico-Chemical Characterization and Biological Activities of a Digestate and a More Stabilized Digestate-Derived Compost from Agro-Waste

Vitti

Elshafie

Logozzo

et al. 2021

Plants

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The excessive use of agricultural soils and the reduction in their organic matter, following circular economy and environmental sustainability concepts, determined a strong attention in considering composting as a preferred method for municipalities and industries to recycle organic by-products. Microorganisms degrade organic matter for producing CO2, water and energy, originating stable humus named compost. The current study analyzed the chemical composition of a cow slurry on-farm digestate and a more stabilized digestate-derived compost (DdC), along with their phytotoxic, genotoxic and antifungal activities. The chemical analysis showed that digestate cannot be an ideal amendment due to some non-acceptable characteristics. Biological assays showed that the digestate had phytotoxicity on the tested plants, whereas DdC did not induce a phytotoxic effect in both plants at the lowest dilution; hence, the latter was considered in subsequent analyses. The digestate and DdC induced significant antifungal activity against some tested fungi. DdC did not show genotoxic effect on Vicia faba using a micronuclei test. Soil treated with DdC (5 and 10%) induced damping-off suppression caused by Fusarium solani in tomato plants. The eco-physiological data indicated that DdC at 5–10% could increase the growth of tomato plants. In conclusion, DdC is eligible as a soil amendment and to strengthen the natural soil suppressiveness against F. solani.

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Section: Resultssupporting

confidence: 93%

Physico-Chemical Characterization and Biological Activities of a Digestate and a More Stabilized Digestate-Derived Compost from Agro-Waste

Vitti

Elshafie

Logozzo

et al. 2021

Plants

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“…The stepwise method of multiple regression analysis was also performed using the F test with a significance level of 0.05 (F-enter = 0.05). It was reported that the GI% values of the three classes (i.e., (1) lower than 40%; (2) between 40% and 60%; and (3) higher than 60%) should correspond to high, moderate, and low toxicities, respectively [50,51].…”

Section: Eco-toxicological Evaluationsmentioning

confidence: 99%

Eco-Toxicological and Kinetic Evaluation of TiO2 and ZnO Nanophotocatalysts in Degradation of Organic Dye

et al. 2019

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In this study, the photocatalytic degradation of azo dye “Food Black 1” (FB1) was investigated using TiO2 and ZnO nanoparticles under ultraviolet (UV) light. The performances of the two photocatalysts were evaluated in terms of key parameters (e.g., decolorization, dearomatization, mineralization, and detoxification of dye) in relation to variables including pre-adsorption period, pH, and temperature. Under acidic conditions (pH 5), the ZnO catalyst underwent photocorrosion to increase the concentration of zinc ions in the system, thereby increasing the toxic properties of the treated effluent. In contrast, TiO2 efficiently catalyzed the degradation of the dye at pH 5 following the Langmuir–Hinshelwood (L–H) kinetic model. The overall results of this study indicate that the decolorization rate of TiO2 on the target dye was far superior to ZnO (i.e., by 1.5 times) at optimum catalyst loading under UV light.

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“…Technologies that can enhance the sustainable utilization of the large quantities of animal manures being generated throughout the world are currently being promoted. One such technology that is gaining momentum due to its limited environmental footprint is the generation of clean energy using the animal manures in the form of biogas (Lencioni et al., 2016; Insam et al., 2015). The management of animal manures through biogas production is being widely promoted as an important renewable energy source (Sieling et al., 2013).…”

Section: Introductionmentioning

confidence: 99%

“…Due to the nutrient composition of biogas digestates, the liquid fraction has been evaluated as a potential fertilizer in soils and hydroponic systems. However the major challenge is their potential phytotoxicity, heavy metal and pathogen addition to the soil and plants (Wang et al., 2019; Lencioni et al., 2016; Sheets et al., 2015; Krishnasamy et al., 2012).…”

Section: Introductionmentioning

confidence: 99%

“…It was observed that silverbeet survival was best at 20% digestate whilst at 50%, silverbeet survival was negatively affected due to ammonia toxicity and low oxygen (Krishnasamy et al., 2012). Lencioni et al. (2016) evaluated the phytotoxicity of pig digestate, which had been diluted from 5-30% on different plants, reporting that digestate concentrations that stimulated germination and early seedling growth were as low as 2–3%, whilst 20–30% could be used for the advanced stages with limited negative effects.…”

Section: Introductionmentioning

confidence: 99%

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Biogas digestates are not an effective nutrient solution for hydroponic tomato (Lycopersicon esculentum L.) production under a deep water culture system

Mupambwa

Namwoonde

Liswaniso

et al. 2019

Heliyon

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The generation of energy through anaerobic digestion using animal manures is being promoted as an environmentally sustainable method of managing animal wastes. However, sustainability of biogas production is reliant on the sustainable utilization of the digestates that emanate from the process. Our study evaluated the effects of the biogas digestates on crop phytotoxicity and their fertilizer potential as a nutrient solution in hydroponic tomato production. Biogas digestates diluted up to 40% (v/v) resulted in significantly (P < 0.05) the lowest relative seed germination (RSG) in all vegetables evaluated in our study. The highest RSG was observed in the 10% biogas digestates, which was higher than the control treatment. For the crop growth study, relative to the control,the treatments with 20%, 40% and 60% mineral fertilizer substitution resulted in 39.4%; 22.8% and 8.7% significantly (P < 0.05) lower chlorophyll content, respectively. On average, the treatments with biogas slurry, though substituted with mineral fertilizers, resulted in a 275% lower fresh fruit yield compared to the control treatment. However, with biogas digestates, the sugar content in the tomato fruits significantly increased, whilst the heavy metal content was below that recommended limit when irrigation water is used. The results of our study demonstrated that cow based digestates are not a suitable nutrient media for hydroponic tomato production. Moreover, even with mineral fertilizer supplementation, only the control treatment containing only mineral hydroponic fertilizer resulted in positive growth and yield in tomatoes.

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Environmental application and phytotoxicity of anaerobic digestate from pig farming by in vitro and in vivo trials

Cited by 28 publications

References 48 publications

Physico-Chemical Characterization and Biological Activities of a Digestate and a More Stabilized Digestate-Derived Compost from Agro-Waste

Physico-Chemical Characterization and Biological Activities of a Digestate and a More Stabilized Digestate-Derived Compost from Agro-Waste

Eco-Toxicological and Kinetic Evaluation of TiO2 and ZnO Nanophotocatalysts in Degradation of Organic Dye

Biogas digestates are not an effective nutrient solution for hydroponic tomato (Lycopersicon esculentum L.) production under a deep water culture system

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