Results 121 to 130 of about 461,225 (394)
Scientific Reports, 2016 Animal manure comprises an important reservoir for antibiotic resistance genes (ARGs), but the variation in ARGs during anaerobic digestion at various temperatures and its underlying mechanism remain unclear.
Wei Sun +4 more
semanticscholar +1 more source
Archaeological Prospection, EarlyView.ABSTRACT Waste disposal processes and landfill management are crucial subjects in the field of settlement archaeology. Our study is focused on understanding the processes that are connected to the formation of the infills of settlement features and the recycling of the building materials (daub and wood) and waste management.
Tereza Šálková +10 more
wiley +1 more source
The Economics of Manure Utilization: Model and Application [PDF]
A model of manure utilization is developed and applied to four types of transportable manure. Model results highlight important response differences among manure types and generally illustrate the diseconomies of manure production. For example, as manure
Hauck, Larry M., Keplinger, Keith O.
core +1 more source
, 2017 . Given the important role of nitrogen input from livestock systems in terrestrial nutrient cycles and the atmospheric chemical composition, it is vital to have a robust estimation of the magnitude and spatiotemporal variation in manure nitrogen ...
Bowen Zhang +5 more
semanticscholar +1 more source
Nitrogen, Phosphorus, and Potassium Flows through the Manure Management Chain in China.
Environmental Science and Technology, 2016 The largest livestock production and greatest fertilizer use in the world occurs in China. However, quantification of the nutrient flows through the manure management chain and their interactions with management-related measures is lacking.
Z. Bai +8 more
semanticscholar +1 more source
Production of Biogas Using Dairy Manure as Feedstock and Rumen Fluid as Inoculum
Journal of Applied Science & Process Engineering, 2016 Methane gas is a valuable gas that can be used as a source of energy, either used for cooking fuel or small-scale electricity production. The most suitable application of the methane gas is in rural areas which rarely have the source of energy.
Shanti Faridah Salleh +2 more
doaj +1 more source
Evaluation of enzymatic pretreatment strategies to enhance anaerobic digestion of tomato waste
Biofuels, Bioproducts and Biorefining, EarlyView.Abstract Tomato residues are a form of solid waste that can be converted into methane through anaerobic digestion (AD). However, methane production is often limited due to incomplete hydrolysis caused by the high lignocellulosic content of tomato waste.
María Eugenia Martínez +4 more
wiley +1 more source
Belt separation system under slat in fattening pig housing: Effect of belt type and extraction frequency [PDF]
, 2010 The efficiency of manure separation by a conveyor belt under a partially slatted floor for fattening pigs was determined for two types of belts, a flat belt with an incline of up to 6° transversely and a concave belt with an incline of up to 1 ...
Alonso Peralta, Francisco +5 more
core +2 more sources
Biofuels, Bioproducts and Biorefining, EarlyView.Abstract The world's population is expected to grow rapidly, with the vast majority of people living in urban areas. Closing nutrient loops is therefore increasingly important for food security and environmental stability. In Germany however, the current treatment of organic and green waste and sewage sludge (derived from wastewater) includes ...
Marielle Trenkner +7 more
wiley +1 more source
Soil biological quality in short- and long-term field trials with conventional and organic fertility input types [PDF]
, 2007 Soils of the DOK trial and three other field trials with manure input were analysed for effects on soil biology. While long-term effects indicate a new steady state at the DOK trial site, differences at the other field trials suggest that fresh manure at
Bruns, Christian +6 more
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