| 超声技术强化处理制革废水中的有机物 |
| 摘要点击 2164 全文点击 2632 投稿时间：2001-02-16 |
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| 中文关键词 超声波 混凝 制革废水 化学耗氧量 |
| 英文关键词 ultrasonic flocculating tannery waste water chemical oxygen demand |
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| 中文摘要 |
| 采用超声波强化混凝沉淀法处理制革废水,考察了超声波的作用时间和施加方式、混凝剂投加量等因素对降低废水中有机物的影响.实验结果表明:只用超声波作用废水60s,COD去除率为40.6%;混凝剂总浓度为100mg/L时COD去除率最高;先施加超声波60s,再投加混凝剂,COD去除率最高可达73.2%,比不用超声波时提高10%以上.因此,超声技术用于混凝沉淀法处理制革废水有明显的强化作用. |
| 英文摘要 |
| The effect of ultrasonic treatment on flocculating settling of tannery effluent was studied, removal of COD in particular was did. The influences of irradiation method and duration of ultrasonic as well prescription of coagulants on the efficiency of minimizing organic chemicals in waste water were investigated. The results show that:① when waste water was treated only by ultrasonic for 60s, the removal rate of COD was 40 6%;② when total concentration of coagulants increased to 100mg/L, the highest removal rate of COD was achieved; ③ when waste water was firstly treated with ultrasonic for 60s, then flocculated with coagulants, the removal rate of COD came to 73 2%, 10% higher than the control without ultrasonic. Thus the treatment of tannery waste water with flocculating settling technology can be effectively strengthened by ultrasonic. |
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