Organics removal and protein recovery from wastewater discharged during the production of chondroitin sulfate

Bentonite, chitosan and polyaluminum chloride (PAC) were applied to treat wastewater discharged during the production of chondroitin sulfate and recover protein dissolved in the wastewater. The results showed that the combination of pH 9.00, 3-4 mL chitosan solution, 2 g of bentonite and 5 mL of 8%...

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Veröffentlicht in:Water science and technology : a journal of the International Association on Water Pollution Research. - 1986. - 68(2013), 7 vom: 16., Seite 1582-90
1. Verfasser: Sheng, Yanqing (VerfasserIn)
Weitere Verfasser: Xing, Li
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2013
Zugriff auf das übergeordnete Werk:Water science and technology : a journal of the International Association on Water Pollution Research
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Industrial Waste Organic Chemicals Proteins Water Pollutants, Chemical Bentonite 1302-78-9 Chondroitin Sulfates 9007-28-7 mehr... Chitosan 9012-76-4
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520 |a Bentonite, chitosan and polyaluminum chloride (PAC) were applied to treat wastewater discharged during the production of chondroitin sulfate and recover protein dissolved in the wastewater. The results showed that the combination of pH 9.00, 3-4 mL chitosan solution, 2 g of bentonite and 5 mL of 8% PAC solution per 100 mL of wastewater with a 4.0 h flocculation time were the optimal conditions for the recovery of protein and removal of total organic carbon (TOC) from wastewater. A pilot-scale test also was conducted, and 130 kg (dry weight) of sediment was obtained from 1.1 m(3) of discharged wastewater. This sediment contained abundant amino acids (proteins comprised 61% of the total sediment), after the recovery of protein, the dissolved TOC concentration in wastewater was decreased by approximately 80% and the residual wastewater could be readily disposed using a traditional activated sludge process 
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650 4 |a Research Support, Non-U.S. Gov't 
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650 7 |a Organic Chemicals  |2 NLM 
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650 7 |a Water Pollutants, Chemical  |2 NLM 
650 7 |a Bentonite  |2 NLM 
650 7 |a 1302-78-9  |2 NLM 
650 7 |a Chondroitin Sulfates  |2 NLM 
650 7 |a 9007-28-7  |2 NLM 
650 7 |a Chitosan  |2 NLM 
650 7 |a 9012-76-4  |2 NLM 
700 1 |a Xing, Li  |e verfasserin  |4 aut 
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