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| Process Optimization and Analysis of Hydrolyzate in Paper Mill Sludge Hydrolysis with Cellulase |
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| DOI：10.11980/j.issn.0254-508X.2016.01.008 |
| Key Words:papermaking sludge cellulase hydrolysis analysis and characterization |
| Fund Project:华南理工大学制浆造纸工程国家重点实验室开放基金(201314)。 |
| Author Name | Affiliation | | 刘 睿1,2 | 1.陕西科技大学轻工与能源学院,陕西省造纸技术及特种纸品开发重点实验室,陕西西安,710021；2.华南理工大学制浆造纸工程国家重点实验室,广东广州,510641 | | 韩 卿1,2 | 1.陕西科技大学轻工与能源学院,陕西省造纸技术及特种纸品开发重点实验室,陕西西安,710021；2.华南理工大学制浆造纸工程国家重点实验室,广东广州,510641 | | 钱威威1,2 | 1.陕西科技大学轻工与能源学院,陕西省造纸技术及特种纸品开发重点实验室,陕西西安,710021；2.华南理工大学制浆造纸工程国家重点实验室,广东广州,510641 | | 彭新文2 | 2.华南理工大学制浆造纸工程国家重点实验室,广东广州,510641 |
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| Abstract:The optimum conditions of enzymatic hydrolysis of paper mill sludge by cellulose was studied, the suitable technological conditions of enzymatic hydrolysis of paper mill sludge were discussed, and the characterization of the hydrolyzate was further analyzed. The results showed that the optimum conditions of enzymatic hydrolysis of paper mill sludge were as follows: temperature was 60℃, pH value 5.0, the reaction time 32.0 h, enzyme dosage 60.0 U/g, substrate concentration 7.0%. After hydrolysis, these was good corresponding relations between oxygen demand (COD) and reducing sugar content of the hydrolysis liquor, infrared spectrum analysis of sludge samples before and after hydrolysis showed that part of cellulose in the sludge probably was hydrolyzed into glucose reducing sugar by enzymatic hydrolysis. |
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