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A lignocellulosic substrate (LS) obtained from our local agroindustry was used as a low-cost and effective adsorbent for the removal of pesticides from wastewaters. The studied pesticides were terbumeton (N-(1,1-dimethyl)-Nethyl-6-methoxy-1,3,5-triazine-2,4-diamine), desethyl terbumeton (N-(1,1-dimethylethyl)-6-methoxy-1,3,5-triazine-2,4-diamine), dimetomorph (4-[3-(4-chlorophenyl)-3-(3,4-dimethoxyphenyl)acryloyl]morpholine), and isoproturon (3-(4-isopropylphenyl)-1,1-dimethylurea). Batch and column experiments were conducted as a function of pH and pesticide concentration under laboratory and industrial conditions. The concentration range studied for the pesticides varied from 2 x 10(-7) to 3 x 10(-4) mol L(-1). The influence of organic and inorganic pollutants was assessed by studying the retention of pesticide in the presence of copper(II) and a surfactant. These experiments indicated that LS is an efficient adsorbent toward the investigated pesticides and has little influence of the other pollutants. The kinetic adsorptions are fast, and the amounts of adsorbed pesticide varied from 1 to 8 g kg(-1) of LS. These retention capacities show that LS can provide a simple, effective, and cheap method for removing pesticides from contaminated waters. Thus, this biomaterial may be useful for cleaning up polluted waters.

Smart: uma pesquisa sobre as internets Smart: uma pesquisa sobre as internets F r é d é r i c M a r t e l ResumoA pesquisa apresentada se baseia em três diferentes pesquisas.A pri meira delas está publicada em português, numa obra intituladaMainstream, e trata da cultura na era da mundialização. A segunda pesquisa destaca as questões da identidade, do gênero e da causa gay.Nela, é observado como esse processo de identificação se transforma a partir da mundialização. A terceira pesquisa, publicada em português em novembro de 2015, chama-se Smart: o que você não sabe sobre a internet e refere-se à internet e ao processo de mundialização acelerado. Smart é uma pesquisa realizada em 50 diferentes países e apresenta o conceito de curadoria smart. Palavras-chaveInternet, curadoria smart, Frédéric Martel, mundialização. AbstractThis article is based on three different researches. The first one is published in the book entitled Mainstream, and it is an observation of the cultural changes in the age of globalization. The second one relates the identity and gender issues, and the gay culture, observing the impacts of the globalization on the identity process. The third and more recently released research is Smart: on the internets, which reports the fast globalization process and its effects on the Internet. This research was performed in 50 different countries and presents the concept of smart curation.

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