| Fe2+-H2O2法处理DSD酸生产氧化母液的研究 |
| 摘要点击 1528 全文点击 1249 投稿时间：1994-02-19 |
| 查看HTML全文
查看全文 查看/发表评论 下载PDF阅读器 |
| 中文关键词 Fe2+-H2O2 DSD酸 废水处理 |
| 英文关键词 ferrous-hydrogen peroxide DSD acid dye intermediate wastewater treatment |
|
| 中文摘要 |
| 为改善DSD酸氧化母液的可生化降解性,将废液先用有机絮凝剂TS-1(一种季胺盐)处理,TS-1的投加量为3g/L,其后用Fe2+-H2O2法氧化,Fe2+和H2O2的量分别为150mg/L,7g/L,废液COD和色度的去除率分别可达64%和62%。经处理后的废水,其BOD5/COD≈0.3,可以认为已达到生化处理的要求。当H2O2的投量为2g/L,经Fe2+-H2O2氧化处理后的废液,再用FeCl3进行两级混凝处理(FeCl3的投加量分别为5g/L和2g/L),则COD和色度的去除率可达90%和95%。 |
| 英文摘要 |
| A pretreatment method for the biological treatment of wastewater from DSD acid manufacturing processes,a refractory dye intermediate wastewater,based on combined Fe2+-H2O2 oxidation and coagulation-flocculation, has been developed. When the wastewater was treated with Fe2+-H2O2 oxidation([Fe2+] = 150mg/L, [H2O2]= 7g/L)after a flocculation using an organic flocculant TS-1 at a dosage of 3g/L, the overall COD and colour removals were 64% and 62%,respectively. BOD5/COD value of the tracted wastewater was 0.3.Fe2+-H2O2 oxidation treatment can reduce the solubility of organic molecules with sulfonic group and increace the efficiency of coagulation treatment.The COD and colour removals were both more than 90% when FeCL3 was used as a coagulant which dosages of two stages coagulation were 5g/L and 2g/L after a Fe2+-H2O2 oxidation pretreatment at a H2O2 dosage of 2g/L. |
|
|
|
