2017
DOI: 10.21577/0100-4042.20170150
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Uso De Palha De Aço Comercial Para O Tratamento De Efluentes Contendo Cromo Hexavalente Provenientes De Processos De Eletrocoloração De Aços Inoxidáveis

Abstract: (VI) ions can be harmful to the environment as well as to human health. Hence, practical and efficient methods for the treatment of such solutions are welcome. In this note, the treatment with commercial steel wool pads of a Cr(VI) residual solution from electrochemical coloration processes of stainless steel is described in detail. Successful treatment was achieved when an amount of steel wool equivalent to 20% in excess in relation to the theoretical stoichiometric amount was used, followed by chemical pre… Show more

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Cited by 2 publications
(3 citation statements)
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References 21 publications
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“…Bahan tambahan pangan bukanlah termasuk aditif atau kontaminan yang ditambahkan ke dalam makanan yang bertujuan untuk meningkatkan kandungan nutrisi dalam makanan. Penggunaan food additive bertujuan untuk meningkatkan kualitas produk akhir dan masa simpan bahan makanan secara eceran (Martins et al, 2017). Food additive mempengaruhi karakteristik makanan ketika ditambahkan langsung selama pemrosesan makanan untuk tujuan tertentu (Atkins dan Smith, 1989;Turner, 1991).…”
Section: Pendahuluanunclassified
“…Bahan tambahan pangan bukanlah termasuk aditif atau kontaminan yang ditambahkan ke dalam makanan yang bertujuan untuk meningkatkan kandungan nutrisi dalam makanan. Penggunaan food additive bertujuan untuk meningkatkan kualitas produk akhir dan masa simpan bahan makanan secara eceran (Martins et al, 2017). Food additive mempengaruhi karakteristik makanan ketika ditambahkan langsung selama pemrosesan makanan untuk tujuan tertentu (Atkins dan Smith, 1989;Turner, 1991).…”
Section: Pendahuluanunclassified
“…Raramente, o cromo (Cr) é encontrado em água naturais, estando normalmente presente como um contaminante de águas expostas à poluição de efluentes de curtumes, de indústrias de cromatos e de circulação de águas, onde é usado para controle de corrosão, dentre outros processos (ARAÚJO, 2006;IRIKURA et al, 2018).…”
Section: Introductionunclassified
“…No entanto, são processos que requerem alta carga química ou geram um novo dejeto a ser tratado. (ARAÚJO, 2006;IRIKURA et al, 2018).…”
Section: Introductionunclassified