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|Título:||Preliminary feasibility study for the use of an adsorption/bio-regeneration system for molinate removal from effluents|
Manaia, Célia M.
Nunes, Olga C.
|Citação:||SILVA, Mónica ...[et al.] - Preliminary feasibility study for the use of an adsorption/bio-regeneration system for molinate removal from effluents. Water Research. ISSN 0043-1354. Vol. 38, n.º 11 (2004), p. 2677-2684|
|Resumo:||This work studies the feasibility of the use of a combined physical-biological remediation procedure for treatment of effluents contaminated with molinate, where the herbicide is removed through adsorption and biodegraded in a subsequent stage, with the regeneration of the adsorbent. In order to select the most adequate absorbent for molinate, different materials were tested, namely pine bark, activated carbon and resin Amberlite XAD-4. Activated carbon and resin Amberlite XAD-4 were the most efficient on the removal of molinate from solutions, although the activated carbon used proved not to be bio-regenerable. It was also observed that factors such as temperature, pH, and conductivity did not affect significantly molinate adsorption onto resin Amberlite XAD-4. Resin Amberlite XAD-4 was successfully bio-regenerated, being observed that biodegradation was mainly dependent on spontaneous desorption of the molinate. After bio-regeneration, the resin could be re-utilised as adsorbent.|
|Versão do Editor:||http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V73-4CDRYTX-3&_user=2460358&_coverDate=06%2F30%2F2004&_rdoc=8&_fmt=high&_orig=browse&_origin=browse&_zone=rslt_list_item&_srch=doc-info%28%23toc%235831%232004%23999619988%23505878%23FLA%23display%23Volume%29&_cdi=5831&_sort=d&_docanchor=&_ct=21&_acct=C000057417&_version=1&_urlVersion=0&_userid=2460358&md5=d22ba98560307eb25228115378f3e285&searchtype=a|
|Aparece nas colecções:||ESB - Artigos em revistas internacionais com Arbitragem / Papers in international journals with Peer-review|
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|Preliminary feasibility study for the use of an adsorption-bioregeneration.pdf||153,84 kB||Adobe PDF||Ver/Abrir|
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