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31.
Application of Fenton's reagent to regenerate activated carbon saturated with organochloro compounds 总被引:4,自引:0,他引:4
In this work Fenton's reagent was used to treat activated carbon saturated with organochloro compounds for the oxidation of the adsorbed contaminants and the regeneration of the carbon adsorbent. Activated carbon containing adsorbed chlorinated model substrates such as chlorobenzene, tetrachloroethylene, chloroform or 1,2-dichloropropane was treated with Fenton's reagent at room temperature resulting in a rapid consumption of the organochloro compounds. Thermogravimetric, infrared, BET surface area and MIMS adsorption studies showed that Fenton's treatment has no significant effect on the physico-chemical properties of the activated carbon. The used carbon adsorbents can be efficiently regenerated and recycled with no loss of its adsorption capacity even after five consecutive treatments with Fenton's reagent. 相似文献
32.
The use of chemical signals in a sexual context is widespread in the animal kingdom. Most studies in spiders report the use
of female pheromones that attract potential sexual partners. Allocosa brasiliensis and Allocosa alticeps are two burrowing wolf spiders that show sex-role reversal. Females locate male burrows and initiate courtship before males
perform any detectable visual or vibratory signal. So, females of these species would be detecting chemical or mechanical
cues left by males. Our objective was to explore the potential for male pheromones to play a role in mate detection in A. brasiliensis and A. alticeps. We designed two experiments. In Experiment 1, we tested the occurrence of male contact pheromones by evaluating female courtship
when exposed to empty burrows constructed by males or females (control). In Experiment 2, we tested the existence of male
volatile pheromones by evaluating female behaviour when exposed to artificial burrows connected to tubes containing males,
females or empty tubes (control). Our results suggest the occurrence of male volatile pheromones that trigger female courtship
in both Allocosa species. The sex-role reversal postulated for these wolf spiders could be driving the consequent reversal in typical pheromone-emitter
and detector roles expected for spiders. 相似文献
33.
de Castro Medeiros Luciana de Alencar Feliphe Lacerda Souza Navoni Julio Alejandro de Araujo André Luis Calado do Amaral Viviane Souza 《Environmental science and pollution research international》2019,26(6):5316-5332
Environmental Science and Pollution Research - Chlorine is considered the most used chemical agent for water disinfection worldwide. However, water chlorination can lead to by-product generation... 相似文献
34.
da Rosa Salles Theodoro da Silva Bruckamann Franciele Viana Altevir Rossato Krause Luciana Maria Fontanari Mortari Sergio Roberto Rhoden Cristiano Rodrigo Bohn 《Journal of Polymers and the Environment》2022,30(7):2695-2713
Journal of Polymers and the Environment - This study reports a simple methodology of obtaining magnetic nanocrystalline cellulose under very mild conditions employing only Fe2+ as the iron source,... 相似文献
35.
Van Opstal Natalia Verónica Seehaus Mariela Soledad Gabioud Emmanuel Adrian Wilson Marcelo German Galizzi Flavio José Pighini Ramiro Joaquin Repetti Maria Rosa Regaldo Luciana María Gagneten Ana María Sasal María Carolina 《Environmental science and pollution research international》2022,29(38):57395-57411
Environmental Science and Pollution Research - Land use changes have led to the degradation of multiple ecosystem services and affected the quality of aquatic ecosystems. The aims of this study... 相似文献
36.
Luciana Picucci Alessandro O. Caffò Andrea Bosco 《Journal of environmental psychology》2011,31(4):430-438
A virtual version of the reorientation task was employed to test new behavioral measures of navigation strategies and spatial confidence within a gender-fair assessment approach. The results demonstrated that, from a behavioral point of view, women had lower level of spatial confidence than men regardless of level of accuracy. Moreover, the way men and women selected spatial strategies depended on the arrangement of spatial cues within the environment. In other terms women relied on landmarks under specific conditions compatible with an adaptive combination/associative model of spatial orientation. Finally, the present study emphasized the importance to assess gender differences taking into account specific affective variables and information selection processing, beyond accuracy. 相似文献
37.
Luciana Möller Fernanda Pedone Valdez Simon Allen Kerstin Bilgmann Shannon Corrigan Luciano B. Beheregaray 《Marine Biology》2011,158(1):113-126
Oceanographic processes play a significant role in shaping the genetic structure of marine populations, but it is less clear
whether they affect genetic differentiation of highly mobile vertebrates. We used microsatellite markers and mtDNA control
region sequences to investigate the spatial genetic structure of short-beaked common dolphins (Delphinus delphis) in southeastern Australia, a region characterised by complex oceanographic conditions associated with the East Australian
Current (EAC). A total of 115 biopsy samples of dolphins were collected from six localities spanning approximately 1,000 km
of the New South Wales (NSW) coastline. We found evidence for contrasting genetic diversity and fine-scale genetic structure,
characterised by three genetically differentiated populations with varying levels of admixture. Spatial genetic structure
was not explained by a model of isolation by distance, instead it coincides with main patterns of oceanographic variation
along the EAC. We propose that common dolphins along the EAC may be adapted to three water masses recently characterised in
this region. 相似文献
38.
Pereira Diogo Rocha Luciana S. Gil María V. Otero Marta Silva Nuno J. O. Esteves Valdemar I. Calisto Vânia 《Environmental science and pollution research international》2021,28(15):18314-18327
Environmental Science and Pollution Research - The main goal of this work was to produce an easily recoverable waste-based magnetic activated carbon (MAC) for an efficient removal of the... 相似文献
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40.
Nazari Mateus Torres Mazutti Janaína Basso Luana Girardi Colla Luciane Maria Brandli Luciana 《Environment, Development and Sustainability》2021,23(8):11139-11156
Environment, Development and Sustainability - Renewable energy is crucial nowadays, and among the options, biofuels are evidenced as a promising alternative to reduce the dependence of fossil... 相似文献