نتایج جستجو برای: woodchips
تعداد نتایج: 125 فیلتر نتایج به سال:
Biopurification systems, such as biofilters, are biotechnological tools to prevent point sources of pesticide pollution stemming from on-farm operations. For the purification processes pesticide sorption and mineralization and/or dissipation are essential and both largely depend on the type of filling materials and the pesticide in use. In this paper the mineralization and dissipation of three ...
Composting is an adequate method for treating and valorizing agricultural waste such as those from spring onion (SO) cultivation chicken breeding (chicken manure–CM). However, the low content of Total Organic Carbon in SO high concentration total nitrogen CM are limitations composting process. This research studied co-composting a moorland ecosystem, together with locally available co-substrate...
Several urban areas of the country in violation of the National Ambient Air Quality Standard (NAAQS) for particulate matter have identified fugitive dust generated by vehicular traffic on paved streets and highways resulting from mud/dirt carryout from unpaved areas as a primary source of PM-10 (particles ≤ 10 μm in aerodynamic diameter). Since little data are currently available on the amount ...
Phosphorus in runoff from fields where poultry litter is surface-applied is an environmental concern. We investigated the effect of adding phytase and reducing supplemental P in poultry diets and composting poultry manures, with and without Fe and Al amendments, on P in manures, composts, and runoff. We used four diets: normal (no phytase) with 0.4% supplemental P, normal + phytase, phytase + 0...
Low harvesting costs and increasing demand for forest-derived biomass led to an increased use of full-tree (FT) harvesting in steep terrain areas in Austria. Logging residues, as a by-product of FT harvesting, present an easily accessible bioenergy resource, but high portions of fine particles and contaminants like earth particles and stones make them a complex and difficult fuel, as they affec...
Abstract The aim of the work was to quantify mass logging residues (branches and tops; t yr −1 dry matter, DM) for energy generation starting from Forest Management Plans (FMP) data. methodology applied public stands an Italian district (area: 3.60 × 10 4 ha; period: 2009–2018). Compared previous preliminary analysis, potentially available were computed considering forest accessibility road tra...
Since 1990 acacia-based tree plantations have fast expanded in Vietnam, now supporting a multi-billion-dollar export-oriented wood industry which is transforming from woodchip production to value-added products. Within this dynamic context, farmer associations started produce sawlogs under FSC (Forest Stewardship Council) certification. In paper, we retrace the development of plantation assets,...
To remove nitrogen in cold conditions, we studied new nature-based treatment solutions using six pilot-scale reactors. The pilots were woodchip bioreactor (WBR), aquatic floating hook-moss (Warnstorfia fluitans) (MBR), and a combined hybrid unit (HBR) with an improved hydraulic design. experiment was run climate room at temperatures of 10 °C 5 mine water from two sites located northern Finland....
Improper properties of sewage sludge include odors, trace elements concentration, and presence of pathogens limit its use in agriculture. Composting and using of earthworms in this process is one of the most suitable methods for stabilization and removal of unsuitable properties of sewage sludge. To investigate the effects of kind and mixing proportion of bulking material and sewage sludge deco...
Chlortetracycline (CTC) is one of only ten antibiotics licensed in the U.S.A. for use as growth promoters for livestock. The widespread use and persistence of CTC may contribute in development of antibiotic-resistant bacteria. The objective of this study was to determine the effect of composting on the fate of CTC residues found in manure from medicated animals. The effect of CTC residues on co...
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