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排序方式: 共有419条查询结果,搜索用时 15 毫秒
101.
102.
Fernando Reynel Fundora Tellechea Marco Antônio Martins Alexsandro Araujo da Silva Emanuela Forestieri da Gama-Rodrigues Meire Lelis Leal Martins 《Environmental science and pollution research international》2016,23(18):18027-18033
This study evaluated the use of sugarcane filter cake and nitrogen, phosphorus and potassium (NPK) fertilization in the bioremediation of a soil contaminated with diesel fuel using a completely randomized design. Five treatments (uncontaminated soil, T1; soil contaminated with diesel, T2; soil contaminated with diesel and treated with 15 % (wt) filter cake, T3; soil contaminated with diesel and treated with NPK fertilizer, T4; and soil contaminated with diesel and treated with 15 % (wt) filter cake and NPK fertilizer, T5) and four evaluation periods (1, 60, 120, and 180 days after the beginning of the experiment) were used according to a 4?×?5 factorial design to analyze CO2 release. The variables total organic carbon (TOC) and total petroleum hydrocarbons (TPH) remaining in the soil were analyzed using a 5?×?2 factorial design, with the same treatments described above and two evaluation periods (1 and 180 days after the beginning of the experiment). In T3 and T5, CO2 release was significantly higher, compared with the other treatments. Significant TPH removal was observed on day 180, when percent removal values were 61.9, 70.1, 68.2, and 75.9 in treatments T2, T3, T4, and T5, respectively, compared with the initial value (T1). 相似文献
103.
Kuntala Lahiri-Dutt Keith Slack Secretariat of the IGCP Programme Lauren Baker Dr. Timothy J. Downs Jeffrey A. McNeely Prof. Tulus Tambunan M. S. Iftekhar Dr. Daniel Franks Prof. Waldemar Souza Simon M. Munthali Dr. Oscar Wambuguh Sylvanus S. P. Doe Carlos C. Peiter Roberto C. Villas Boas 《Natural resources forum》2009,33(3):245-249
104.
Kouloukoui Daniel Marinho Marcia Mara de Oliveira Gomes Sônia Maria da Silva de Jong Pieter Kiperstok Asher Torres Ednildo Andrade 《Mitigation and Adaptation Strategies for Global Change》2020,25(1):127-147
Mitigation and Adaptation Strategies for Global Change - The corporate sector is one of the main emitters in the world due to the production process and therefore is identified as a major... 相似文献
105.
Lourdes Teresinha Kist Said El Moutaqi Ênio Leandro Machado 《Journal of Cleaner Production》2009,17(13):1200-1205
This study included the layout characterization for the production process of a poultry slaughterhouse using qualitative and quantitative flow charts for water management; analysis of general parameters for pollution load in the wastewater produced in critical stages of the production process and assessment of environmental impact indicators. Prognoses for cleaner production based on water management were established. The diagnostic stage revealed that the scalding, pre-chilling, separated points of wastewater disposal for the wastewater treatment plant and disposal of treated and non-reused wastewater were critical for water management. Dissolved oxygen depletion and eutrophication account for the major environmental impacts of these wastewaters, resulting in an environmental pressure index of 32.1. The opportunities for cleaner production implementation resulting from this study include the reuse of wastewaters from pre-chilling and chilling for pre-washing of carcasses, since average temperatures of these wastewaters range between 4 and 16 °C. This will contribute to lowering the oil and grease pollution load. Another strategy concerns the standardization of cleaning procedures with rational water use in all work shifts and implementation of water meters on a sector-by-sector basis. In the latter case, which has already been implemented, water consumption was reduced by 13%. 相似文献
106.
Simões Marta Filipa Maiorano Alfredo Eduardo dos Santos Jonas Gomes Peixoto Luciana de Souza Rodrigo Fernando Brambilla Neto Almir Oliveira Brito António Guerreiro Ottoni Cristiane Angélica 《Environmental Chemistry Letters》2019,17(3):1413-1420
Environmental Chemistry Letters - The anthraquinone dye Remazol Brilliant Blue R is largely used in the textile industry. However, its removal from wastewaters is costly and complex. Many methods... 相似文献
107.
Erin K. Cameron Inês S. Martins Patrick Lavelle Jérôme Mathieu Leho Tedersoo Mohammad Bahram Felix Gottschall Carlos A. Guerra Jes Hines Guillaume Patoine Julia Siebert Marten Winter Simone Cesarz Olga Ferlian Holger Kreft Thomas E. Lovejoy Luca Montanarella Alberto Orgiazzi Henrique M. Pereira Helen R. P. Phillips Josef Settele Diana H. Wall Nico Eisenhauer 《Conservation biology》2019,33(5):1187-1192
Human activities are accelerating global biodiversity change and have resulted in severely threatened ecosystem services. A large proportion of terrestrial biodiversity is harbored by soil, but soil biodiversity has been omitted from many global biodiversity assessments and conservation actions, and understanding of global patterns of soil biodiversity remains limited. In particular, the extent to which hotspots and coldspots of aboveground and soil biodiversity overlap is not clear. We examined global patterns of these overlaps by mapping indices of aboveground (mammals, birds, amphibians, vascular plants) and soil (bacteria, fungi, macrofauna) biodiversity that we created using previously published data on species richness. Areas of mismatch between aboveground and soil biodiversity covered 27% of Earth's terrestrial surface. The temperate broadleaf and mixed forests biome had the highest proportion of grid cells with high aboveground biodiversity but low soil biodiversity, whereas the boreal and tundra biomes had intermediate soil biodiversity but low aboveground biodiversity. While more data on soil biodiversity are needed, both to cover geographic gaps and to include additional taxa, our results suggest that protecting aboveground biodiversity may not sufficiently reduce threats to soil biodiversity. Given the functional importance of soil biodiversity and the role of soils in human well-being, soil biodiversity should be considered further in policy agendas and conservation actions by adapting management practices to sustain soil biodiversity and considering soil biodiversity when designing protected areas. 相似文献
108.
Preetam Sarkar Ruplal Choudhary Shubham Panigrahi Irshaan Syed S Sivapratha Chanda Vilas Dhumal 《Environmental Chemistry Letters》2017,15(4):607-622
Creation of food-based nanomaterials for food processing and packaging applications is actually gaining in importance. Indeed, the design of a suitable food carrier system controls the encapsulation efficiency, the product stability and release of bioactives such as micronutrients, antimicrobial compounds and antioxidants. The smaller size of nanomaterials provides higher thermodynamic and kinetic stability. Whereas the higher surface area enhances compound solubility. Nanoemulsions both encapsulate bioactive compounds effectively and address the food safety concerns of the fresh produce associated with foodborne pathogens. Nanoliposomes encapsulate bioactive whey peptides and fat-soluble vitamins with improved functionalities. Encapsulated bioactive molecules are released by diffusion into the surrounding environment after degradation of the surrounding polymeric matrix. 相似文献
109.
110.
Abstract: We used spatial and statistical analyses to identify and prioritize broad areas for conservation attention in the northern Zululand region of KwaZulu-Natal, South Africa. We attempted to identify conservation-worthy areas based on species, vegetation types, ecological processes, and threats to biodiversity. Information on species was limited and so could not form the basis of the analysis. Priority vegetation types were identified by degree of endemicity, extent of protection and transformation, and degree of fragmentation. These priority vegetation types and threats to biodiversity were used to define broad linkages between existing protected areas. We set a goal of 10% protection for each vegetation type and 25% for each species. We identified several important (endemic or threatened) animal species and predicted their ranges using a simple model. Species ranges and their hotspots were compared with the distribution of protected areas and the suggested linkages to evaluate increased species representation. Generally, the eastern part of the study area was well protected. Unprotected conservation-worthy areas under greatest threat lay in the west, and protecting these areas is a priority. Furthermore, several vegetation types were not protected by provincial authorities, a situation that also needs to be addressed. The findings of our study need to be reassessed at a finer land-parcel scale, and implementation of a range of land-use options considered. 相似文献