Vinasse treatment by coupling of electro-dissolution, hetero- coagulation and anaerobic digestion
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| Format: | Artículo científico |
| Language: | en |
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Universidad Nacional de Colombia
2014
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| _version_ | 1876491226431094784 |
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| author | Olga Lucía Paz-Pino |
| author_facet | Olga Lucía Paz-Pino |
| contents | Vinasse treatment by coupling of electro-dissolution, hetero- coagulation and anaerobic digestion Olga Lucía Paz-Pino Luz Edith Barba-Ho Nilson Marriaga-Cabrales Ingeniería Vinasse phenols electro Keywords dissolution The distillery vinasse is the most important liquid effluent of the ethanol production process and it is characterized by a hi gh chemical oxygen demand (COD) and high biochemical oxygen demand (BOD); b esides its acid pH and dark brown color. Phenol content in vinasse causes inhibitory effects on anaerobic digestion proces ses and has an adverse environmental impact. An alternative for treating vinasse from distilleries by using the electro-dissolution of i ron and a heterocoagulation stage with Ca(OH) 2 as a pretreatment was evaluated. Removals of 92% in phenols and 52% in chemical oxyge n demand (COD) were obtained. Then, the pretreated vinasse was undergone to an anaerobic digestion process. Global removals to around 93% in biochemical oxygen demand (BOD 5 ), 83% in COD, and over 99% in total phenols were obtained. Finally, an eco-toxico logical evaluation using Daphnia pulex was carried out, and it was found that the coupling treatment increased the medium lethal concent ration (LC 50 ) to around 190%. 2014 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49632363013 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.187 Vol.81 |
| format | Artículo científico |
| id | redalyc_49632363013 |
| institution | Redalyc |
| language | en |
| publishDate | 2014 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | Vinasse treatment by coupling of electro-dissolution, hetero- coagulation and anaerobic digestion Olga Lucía Paz-Pino Ingeniería Vinasse phenols electro Keywords dissolution Vinasse treatment by coupling of electro-dissolution, hetero- coagulation and anaerobic digestion Olga Lucía Paz-Pino Luz Edith Barba-Ho Nilson Marriaga-Cabrales Ingeniería Vinasse phenols electro Keywords dissolution The distillery vinasse is the most important liquid effluent of the ethanol production process and it is characterized by a hi gh chemical oxygen demand (COD) and high biochemical oxygen demand (BOD); b esides its acid pH and dark brown color. Phenol content in vinasse causes inhibitory effects on anaerobic digestion proces ses and has an adverse environmental impact. An alternative for treating vinasse from distilleries by using the electro-dissolution of i ron and a heterocoagulation stage with Ca(OH) 2 as a pretreatment was evaluated. Removals of 92% in phenols and 52% in chemical oxyge n demand (COD) were obtained. Then, the pretreated vinasse was undergone to an anaerobic digestion process. Global removals to around 93% in biochemical oxygen demand (BOD 5 ), 83% in COD, and over 99% in total phenols were obtained. Finally, an eco-toxico logical evaluation using Daphnia pulex was carried out, and it was found that the coupling treatment increased the medium lethal concent ration (LC 50 ) to around 190%. 2014 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49632363013 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.187 Vol.81 |
| title | Vinasse treatment by coupling of electro-dissolution, hetero- coagulation and anaerobic digestion |
| topic | Ingeniería Vinasse phenols electro Keywords dissolution |
| url | https://www.redalyc.org/articulo.oa?id=49632363013 |