工业水处理 ›› 2022, Vol. 42 ›› Issue (3): 172-177. doi: 10.19965/j.cnki.iwt.2021-0559

• 工程实例 • 上一篇    下一篇

杨木化机浆造纸废水的治理工程实例及分析

尹寅1(),邱小山2,于佳傲1,迟添霓1,王晓玲3   

  1. 1.吉林建筑大学市政与环境工程学院, 吉林 长春 130118
    2.邓州市华鑫纸业有限公司, 河南邓州 474150
    3.吉林建筑大学松辽流域水环境教育部重点实验室, 吉林 长春 130118
  • 收稿日期:2021-12-10 出版日期:2022-03-20 发布日期:2022-03-21
  • 作者简介:尹寅(1998— ),在读硕士研究生。电话:18317208975,E-mail:743293761@qq.com

The project case and analysis of treatment poplar pulping papermaking wastewater

Yin YIN1(),Xiaoshan QIU2,Jiaao YU1,Tianni CHI1,Xiaoling WANG3   

  1. 1.College of Municipal and Environmental Engineering, Jilin Jianzhu University, Changchun 130118, China
    2.Dengzhou Huaxin Paper Co. , Ltd. , Dengzhou 474150, China
    3.Key Laboratory of Songliao Aquatic Environment, Ministry of Education, Jilin Jianzhu University, Changchun 130118, China
  • Received:2021-12-10 Online:2022-03-20 Published:2022-03-21

摘要:

某企业根据其化机浆废水的水质特点,采用“加酸、预曝气+预酸化+IC反应器+氧化沟+混凝脱色”的工艺对其进行处理。运行结果表明:该组合工艺对化机浆废水具有较好的处理效果。其中,IC厌氧反应器对化机浆废水COD的去除率稳定在66%,对SS的去除率稳定在49.11%;好氧系统的COD去除率约为90%,SS去除率约为61.07%;混凝脱色处理出水COD约为75 mg/L,SS约为23.5 mg/L,处理出水水质满足《制浆造纸工业水污染物排放标准》(GB 3544—2008)的要求。该组合工艺对化机浆废水的处理成本约为6.1元/t。该工程案例可为国内外同类废水处理技术方案和工艺流程的确定,以及设计参数的选择提供实践基础。

关键词: 化机浆废水, 预酸化池, IC反应器, 氧化沟

Abstract:

According to the quality characteristics of chemical pulp wastewater in a certain enterprise,the process of“adding acid,pre-aeration+pre-acidification+IC reactor+oxidation ditch+coagulation and decolorization” was adopted to treat it. The operation results showed that the combined process had good treatment effect on chemical pulp wastewater. The removal rate of COD and SS by IC anaerobic reactor was stable at 66% and 49.11% respectively. The removal rate of COD and SS in aerobic system was about 90% and 61.07% respectively. The effluent COD of coagulation and decolorization treatment was about 75 mg/L,and SS was about 23.5 mg/L. The effluent water quality met the requirements of the Discharge Standard of Water pollutants for Pulp and Paper Industry(GB 3544—2008). The cost of the combined process for the treatment of chemical pulp wastewater was about RMB6.1 per ton. The pro-ject case could provide a practical basis for the determination of technical scheme and process flow and the selection of design parameters of similar wastewater treatment at home and abroad.

Key words: chemical pulp wastewater, pre-acidification pool, IC reactor, oxidation ditch

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