| 化学氧化法处理资源回收后的J-酸和吐氏酸染料中间体废液 |
| 摘要点击 1883 全文点击 2516 投稿时间：1996-11-22 |
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| 中文关键词 染料中间体 J－酸废母液 吐氏酸废母液 Fenton试剂 化学氧化 |
| 英文关键词 dye intermediate J-acid waste liquor To bias acid waste liquor chemical oxidation Fenton reagent |
| DOI 10.13227/j.hjkx.19970410 |
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| 中文摘要 |
| 萘系磺酸染料中间体J-酸和吐氏酸废母液经有用资源的回收后,尚须进行最终出水的达标处理。通过吐氏酸和J-酸废母液萃余液的后处理试验,确定了盐回收-混凝沉淀-化学氧化的达标处理工艺方案,并确定了相应的工艺参数。其中化学氧化采用Fenton试剂(以双氧水作氧化剂,绿矾为催化剂),在经济合理的投量范围内经2-4h反应,萃余液CODCr去除率达80%以上,最终出水CODcr在200mg/L以下,满足有关工业废水排放标准。 |
| 英文摘要 |
| After recovering the useful substances from the waste liquor of two kinds of naphthalene series sulfonic acid dye intermediates, J-acid and Tobias acid,it is necessary to have a final treatment of the effluent,remained liquor, according to the National Standard of Industry Wastewater Discharge. The saltreco very-co-agulation and sediment ation-chemical oxidation process was carried out for treating the remained liquor(CODCr 1000mg/L, salt concentration 150-300g/L)in the paper. Fenton reagent(combination of H2O2 and Fe2+)was used for the chemical oxidation and the optimum parameters of the process had been obtained. The dosages of hydrogen peroxide(containing 30% of H2O2)and FeSO4·7H2O are 4L and 1.35kg per m3 of theremained liquor,respectively. The CODCr removal efficiency is more than 80% and CODCr of the final effluent is decreased to less than 200mg/L which meet the requirement of the National Standard. |
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