基本信息:
- 专利标题： 氧化-混凝法处理氧化塘遗留造纸黑液的工艺
- 专利标题（英）：Technique for treating aeration lagoon remained papermaking black liquor by oxidation-coagulation method
- 申请号：CN200910030306.0 申请日：2009-03-18
- 公开(公告)号：CN101503254B 公开(公告)日：2010-12-29
- 发明人： 陈国松 , 胡俊 , 王济奎 , 唐美华 , 徐炎华 , 张之翼 , 常闻捷 , 汤俊梅 , 吴丽娟
- 申请人： 南京工业大学
- 申请人地址： 江苏省南京市新模范马路5号
- 专利权人： 南京工业大学
- 当前专利权人： 南京工业大学
- 当前专利权人地址： 江苏省南京市新模范马路5号
- 代理机构： 南京天华专利代理有限责任公司
- 代理人： 徐冬涛
- 主分类号： C02F9/04
- IPC分类号： C02F9/04 ; C02F1/72 ; C02F1/52 ; C02F103/28
The invention belongs to the environmental protection field, and relates to a process for treating paper making black liquor, in particular to a process for treating paper making black liquor left in an oxidation pond by using the oxidation-coagulation method. The process is characterized in that the process comprises the following steps: firstly adding a Fenton reagent with specific blending ratio into the black liquor and oxidizing for a certain time; adding a specific amount of coagulant positive ion polyacrylamide into the black liquor and slowly agitating; and finally filtering. The obtained filter liquor is clear and transparent, can directly be discharged up to the standard, and has the pH of 6 to 7, the COD of 150 to 250 mg/L, the chroma of 10 to 25 times, and the SS of 10 to 30 mg/L. The process has the advantages of short treatment time, good effect, low cost, scale control realization due to easy continuous operation, and good application prospect.
公开/授权文献:
- CN101503254A 氧化-混凝法处理氧化塘遗留造纸黑液的工艺 公开/授权日：2009-08-12
IPC结构图谱:
| C | 化学；冶金 |
| --C02 | 水、废水、污水或污泥的处理 |
| ----C02F | 水、废水、污水或污泥的处理 |
| ------C02F9/00 | 水、废水或污水的多级处理 |
| --------C02F9/04 | .至少有一个化学处理步骤 |