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| Analysis of the Dissolved Organics in the Chemical Pretreatment Waste Liquor of Polar APMP Pulping |
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| DOI：10.11980/j.issn.0254-508X.2015.08.001 |
| Key Words:poplar APMP chemical pretreatment effluent lignin oligosaccharides |
| Fund Project:国家自然科学基金(31270627,31370580)；山东省自然科学基金项目(ZR2011CM011)。 |
| Author Name | Affiliation | | 王鑫宇1 | 1.广西大学轻工与食品工程学院, 广西南宁, 530004 | | 陈嘉川1,2,* | 1.广西大学轻工与食品工程学院, 广西南宁, 530004；2.齐鲁工业大学制浆造纸科学与技术教育部重点实验室, 山东济南, 250353 | | 吴 芹2 | 2.齐鲁工业大学制浆造纸科学与技术教育部重点实验室, 山东济南, 250353 | | 王双飞1 | 1.广西大学轻工与食品工程学院, 广西南宁, 530004 | | 杨桂花2,* | 2.齐鲁工业大学制浆造纸科学与技术教育部重点实验室, 山东济南, 250353 |
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| Abstract:The main components of the dissolved organics in chemical pretreatment waste liquor of poplar APMP pulping are small molecular weight lignin and oligosaccharides. The variation of lignin and oligosaccharides concentration in the pretreatment waste liquor under different chemical pretreatment conditions was analyzed by using ultraviolet spectrophotometer. The experimental results showed that effects of NaOH, H2O2 and Na2SiO3 dosage on lignin and oligosaccharides concentration in the waste liguor were different. The impact degree was ranked as follows: NaOH dosage >H2O2 dosage>Na2SiO3 dosage, in which the dosages of NaOH and H2O2 had important impact on lignin and oligosaccharides concentration, and Na2SiO3 dosage had slightly effect. Effect of chemical pretreatment temperature was greater than that of pretreatment time. In the chemical pretreatment process, NaOH dosage, H2O,sub>2 dosage and treating temperature were the important factors. |
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