Results 141 to 150 of about 1,983 (164)
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Ammonia toxicity in liquid piggery manure digestion
Biotechnology Letters, 1981In batch and continuous experiments, the influence of NH4|post|staggered|+-N on anaerobic digestion of liquid piggery manure was investigated. The source of nitrogen as well as its concentration influenced the fermentation. By means of pH-controlled operation and a suitable choice of temperature, inhibitory effects of NH4|post|staggered|+-N could be ...
R. Braun, P. Huber, J. Meyrath
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Communication. Liquid nitrogen cooling in microwave digestion
The Analyst, 1993In an attempt to minimize the delay in opening Teflon pressure vessels following microwave acid digestion, and thus significantly reduce sample preparation time, various approaches to vessel cooling have been investigated. These include the feasibility of carrying out digestions with the pressure vessels immersed in liquid nitrogen and the use of ...
Helen J. Reid +2 more
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Science of The Total Environment, 2023
In this research, the performance of biochar-enhanced agricultural application of food waste liquid digestate for celery cultivation was investigated to reveal its utilization potential and environmental impacts. Liquid digestate demonstrated a good agronomic effect, with a significant fertilization efficiency of 42.3 % during celery growth.
Xiao, Bian, Kaijun, Wang, Hui, Gong
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In this research, the performance of biochar-enhanced agricultural application of food waste liquid digestate for celery cultivation was investigated to reveal its utilization potential and environmental impacts. Liquid digestate demonstrated a good agronomic effect, with a significant fertilization efficiency of 42.3 % during celery growth.
Xiao, Bian, Kaijun, Wang, Hui, Gong
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Waste Management, 2017
Waste management by anaerobic digestion generates a final byproduct, the digestate, which is usually separated into solid and liquid fractions to reduce the volume for transportation. The composition of the solid fraction has been recently studied to allow its valorization.
Akhiar, Afifi +3 more
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Waste management by anaerobic digestion generates a final byproduct, the digestate, which is usually separated into solid and liquid fractions to reduce the volume for transportation. The composition of the solid fraction has been recently studied to allow its valorization.
Akhiar, Afifi +3 more
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Microalgal Cultivation in Treating Liquid Digestate from Biogas Systems
Trends in Biotechnology, 2016Biogas production via anaerobic digestion (AD) has rapidly developed in recent years. In addition to biogas, digestate is an important byproduct. Liquid digestate is the major fraction of digestate and may contain high levels of ammonia nitrogen. Traditional processing technologies (such as land application) require significant energy inputs and raise ...
Ao, Xia, Jerry D, Murphy
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Effects of liquid digestate pretreatment on biogas production for anaerobic digestion of wheat straw
Bioresource Technology, 2019In this study, the effects of liquid digestate pretreatment of wheat straw on its biogas production efficiency and anaerobic digestion were investigated using a laboratory-scale biochemical methane potential test. Scanning electron microscope, X-ray diffraction analysis and Fourier transform infrared spectroscopy were used to analyze the changes in ...
Ting, Liu +4 more
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Enzymatic digestion of liquid hot water pretreated hybrid poplar
Biotechnology Progress, 2009AbstractLiquid hot (LHW) water pretreatment (LHW) of lignocellulosic material enhances enzymatic conversion of cellulose to glucose by solubilizing hemicellulose fraction of the biomass, while leaving the cellulose more reactive and accessible to cellulase enzymes.
Youngmi, Kim +2 more
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Effect of photocatalysis on the physicochemical properties of liquid digestate
Environmental Research, 2023Antibiotic residues pose a risk to the agricultural application of liquid digestate. In our previous study, photocatalysis was employed to degrade the antibiotics in liquid digestate and observed that the removal efficiency of TC, OTC, and CTC was up to 94.99%, 88.92%, and 95.52%, respectively, at the optimal experimental level, demonstrating the ...
Panpan, Wang +4 more
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Nitrogen removal of thermal hydrolysis-anaerobic digestion liquid: A review
Chemosphere, 2023Thermal hydrolysis (TH) pretreatment, as an anaerobic digestion (AD) pretreatment, has not only been verified in the laboratory but also frequently employed in actual engineering. However, the properties of anaerobic digestion liquid (ADL), such as high organic matter concentration, high ammonia nitrogen (NH4+-N) concentration, and low carbon-nitrogen ...
Xiangkun, Li +5 more
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Waste Management, 2019
In this study, the application of liquid and dewatered digestate was compared for the inoculation of the anaerobic digestion (AD) process. In addition to the specific methanogenic activity and biohydrogen potential tests, biochemical methane potential assay was also conducted using four different types of municipal and industrial waste streams (primary
E, Hosseini Koupaie +4 more
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In this study, the application of liquid and dewatered digestate was compared for the inoculation of the anaerobic digestion (AD) process. In addition to the specific methanogenic activity and biohydrogen potential tests, biochemical methane potential assay was also conducted using four different types of municipal and industrial waste streams (primary
E, Hosseini Koupaie +4 more
openaire +2 more sources