| 对苯二甲酸生产废水的治理研究 |
| 摘要点击 651 全文点击 900 投稿时间：1987-08-26 |
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| 中文关键词 |
| 英文关键词 |
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| 中文摘要 |
| 对苯二甲酸(PTA)是生产聚酯的主要原料,其生产过程中排出的废水浓度高,又难于生物降解,是处理难度较大的一种废水,目前尚无经济有效的处理方法。国外处理这种废水是采用在pH 4—5条件下的延时曝气方法,例如美国的Corpef River厂和Decater厂采用了天然生物塘法,这种方法操作简便,处理效果较好,缺点是占地面积大。国内这种废水的处理尚处于试验阶段。 |
| 英文摘要 |
| A process of "flocculation-clarification-filtration-neutralization by lime" was developed for treatment of high concentration wastewater discharged from a phthalic acid production factory. The pollutants can be removed from wastewater very effectively, i.e. phthalic acid can be removed from the original 2000—3000 mg/L to less than 50 mg/L, COD from thousands mg/L to the level about 500/ mg/L. Furthermore, pH values of wastewater after treatment can be controlled in the range of 6—7 constantly no matter how high (higher than 13) or how low (lower than 4) in the raw wastewater, After treatment, the water will become degradable by biological process. |
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