Electrodialysis (ED) has been used as a membrane technique to concentrate tartaric acid from ion exchange regeneration waters obtained in grape juice treatment. The initial ion tartrate concentration in these streams varies between 1 and 10 kg m(-3) and can be concentrated more than 60% (53.2 kg m(-3) after 13 300 s). Permeate flux of ether common ionic components has been shown. Optimum intensities and current efficiency have been calculated with synthetic solutions. A mathematical approach has been used to predict final tartaric acid concentration and electro-osmotic effects.
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Univ Sao Paulo, BR-05508030 Sao Paulo, Brazil
Univ Fed Rio Grande do Sul, BR-91501970 Porto Alegre, RS, BrazilUniv Sao Paulo, BR-05508030 Sao Paulo, Brazil
Buzzi, Daniella Cardoso
Viegas, Lucas Stephano
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Univ Fed Rio Grande do Sul, BR-91501970 Porto Alegre, RS, BrazilUniv Sao Paulo, BR-05508030 Sao Paulo, Brazil
Viegas, Lucas Stephano
Siqueira Rodrigues, Marco Antonio
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FEEVALE, BR-93352000 Novo Hamburgo, RS, BrazilUniv Sao Paulo, BR-05508030 Sao Paulo, Brazil
Siqueira Rodrigues, Marco Antonio
Bernardes, Andrea Moura
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Univ Fed Rio Grande do Sul, BR-91501970 Porto Alegre, RS, BrazilUniv Sao Paulo, BR-05508030 Sao Paulo, Brazil
Bernardes, Andrea Moura
Soares Tenorio, Jorge Alberto
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Univ Sao Paulo, BR-05508030 Sao Paulo, BrazilUniv Sao Paulo, BR-05508030 Sao Paulo, Brazil
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Sogang Univ, Dept Chem & Biomol Engn, 35 Baekbeom Ro, Seoul 04107, South KoreaSogang Univ, Dept Chem & Biomol Engn, 35 Baekbeom Ro, Seoul 04107, South Korea
Cha, Yun Yeop
Lee, Cheol
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Sogang Univ, Dept Chem & Biomol Engn, 35 Baekbeom Ro, Seoul 04107, South KoreaSogang Univ, Dept Chem & Biomol Engn, 35 Baekbeom Ro, Seoul 04107, South Korea
Lee, Cheol
Kim, Hyein
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Sogang Univ, Dept Chem & Biomol Engn, 35 Baekbeom Ro, Seoul 04107, South KoreaSogang Univ, Dept Chem & Biomol Engn, 35 Baekbeom Ro, Seoul 04107, South Korea
Kim, Hyein
Lee, Go Gi
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Res Inst Ind Sci & Technol, Ind Mat Res Grp, Pohang Si 37673, South KoreaSogang Univ, Dept Chem & Biomol Engn, 35 Baekbeom Ro, Seoul 04107, South Korea
Lee, Go Gi
Nam, Seung Eun
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Korea Res Inst Chem Technol, Green Carbon Res Ctr, 141 Gajeong Ro, Daejeon 305600, South KoreaSogang Univ, Dept Chem & Biomol Engn, 35 Baekbeom Ro, Seoul 04107, South Korea