制浆造纸行业水污染全过程控制技术理论与实践

制浆造纸行业是我国水污染防治的重点,减排任务艰巨。在环境倒逼下,造纸行业加快淘汰落后产能和完善末端治理技术,污染控制取得了初步成效。但随着国家和地方环境治理由浓度控制走向总量控制、质量控制,原有技术的局限性难以满足解决水污染的更高要求,必须创新污染防治方法。本文介绍了制浆造纸行业水污染全过程控制的基本理论和内涵,并结合化学法制浆、化学机械法制浆、废纸制浆与造纸过程水污染防治工程实践,提出了解决制浆造纸行业水污染的对策,为推动行业绿色转型升级和高质量发展提供了支撑。

Whole-process Control of Water Pollution in Theory and Practices for Pulp and Paper Industry

As one of main industries in water pollution prevention and control in China, reducing pollutant emissions in pulp and paper industry is arduous. Under the pressure of the environment protection, the pollution situation in pulp and paper industry has changed obviously with the help of the elimination of backward production facilities and improvement of end treatment technologies. However, under the background of the environment management moved from concentration control to total control and quality control, the previous technologies are difficult to meet the higher requirements for water pollution management due to their limitations. So, the pollution prevention methods must be innovated. This paper introduced the basic theory and connotation of the whole-process control of water pollution in pulp and paper industries. Then, the practices in chemical pulping, chemical mechanical pulping, recycled-paper pulping and papermaking process were introduced based on these theories. Finally, the countermeasures for water pollution prevention and treatment provided support for promoting pulp and paper industry''s upgrading for green grown and high-quality development.