| 化学法综合治理草浆造纸黑液的研究 |
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| 中文关键词 草浆黑液 除硅 酸析沉淀 混凝 催化氧化 |
| 英文关键词 straw palp effluent-black liquor acidification-pre cipitation coagulation catalytic oxidation |
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| 中文摘要 |
| 本文采用凝聚-离心分离法对黑液进行预除硅,酸析沉淀法回收黑液中的木质素,并重点研究了混凝法和催化氧化法除去经提取木质素后的黑液中COD的最佳条件.研究结果表明,采用预先除硅-酸析沉淀-混凝-催化氧化联合流程可有效地处理黑液,处理水COD小于300mg/L,同时回收了木质素. |
| 英文摘要 |
| Silicon in the black liquor was Firstly removed by-coagulation and centrifugation and lignin was separated from the black liquor with acidification-precipietion, The study also focused on the removal of COD of the lignia free black liquor by coagulation and catalytic oxidation. Experimental results indicate that the technique mentioned above can effectively treat straw pulp effluent-black liquor. COD Value of tie treated water can be less than 300mg/L and lignin can be recovered as by-product. |
