摘 要
工业废水的排放对水环境造成了严重威胁，其深度处理与回用已成为解决水资源短缺和环境污染问题的重要途径。本研究以提高工业废水处理效率和促进资源化利用为目标，针对传统处理技术在去除难降解有机物、重金属离子及盐分等方面的局限性，提出了一种集成高级氧化-膜分离-结晶工艺的深度处理技术体系。通过实验室小试和中试验证，系统分析了不同工艺单元对污染物的去除效果及其协同作用机制。研究表明，高级氧化技术可显著降低废水中COD浓度并改善水质的可生化性，而后续膜分离工艺则有效截留了微小颗粒物和溶解性有机物，最终结合结晶工艺实现了盐分的回收与零液体排放。此外，本研究创新性地引入了智能控制模型优化运行参数，大幅提高了系统的稳定性和经济性。结果表明，该技术体系能够将工业废水处理至符合回用标准，且回用率超过85%。结论认为，该研究为工业废水深度处理提供了可行的技术方案，同时为推动循环经济和可持续发展奠定了基础，具有重要的理论价值和实践意义。
关键词：高级氧化-膜分离-结晶工艺；难降解有机物去除；智能控制优化；水资源回用
ABSTRACT
The discharge of industrial wastewater poses a severe threat to the water environment, and its advanced treatment and reuse have become crucial approaches for addressing water resource shortages and environmental pollution. This study aims to enhance the efficiency of industrial wastewater treatment and promote resource utilization by targeting the limitations of conventional technologies in removing recalcitrant organic compounds, heavy me tal ions, and salinity. An integrated advanced oxidation-membrane separation-crystallization technology system was proposed. Through laboratory-scale experiments and pilot-scale trials, the pollutant removal performance of different process units and their synergistic mechanisms were systematically analyzed. The results indicate that advanced oxidation technology can significantly reduce the chemical oxygen demand (COD) concentration in wastewater and improve its biodegradability. Subsequent membrane separation effectively retains fine particulates and dissolved organic matter, while the final crystallization process enables salt recovery and achieves zero liquid discharge. Additionally, this study innovatively incorporates an intelligent control model to optimize operational parameters, thereby substantially enhancing the stability and cost-effectiveness of the system. The findings demonstrate that this technology system can treat industrial wastewater to meet reuse standards with a reuse rate exceeding 85%. It is concluded that this research provides a feasible technical solution for the advanced treatment of industrial wastewater and lays a foundation for promoting circular economy and sustainable development, possessing significant theoretical and practical implications.
Keywords: Advanced Oxidation-Membrane Separation-Crystallization Process; Refractory Organic Matter Removal; Intelligent Control Optimization; Water Resources Reuse
目 录
摘 要 I
ABSTRACT II
第1章 绪论 1
1.1 工业废水深度处理的研究背景 1
1.2 工业废水回用技术的意义分析 1
1.3 国内外研究现状综述 1
1.4 本文研究方法与技术路线 2
第2章 工业废水深度处理关键技术 3
2.1 高级氧化技术的应用研究 3
2.2 膜分离技术的优化分析 3
2.3 吸附法在深度处理中的作用 4
2.4 生物处理技术的改进方向 4
2.5 技术经济性评估方法 5
第3章 工业废水回用系统设计与优化 6
3.1 回用水质标准与要求 6
3.2 回用系统工艺流程设计 6
3.3 系统能耗与运行成本分析 7
3.4 水质稳定性保障措施 7
3.5 回用系统的环境效益评估 8
第4章 工业废水深度处理与回用案例分析 9
4.1 典型行业废水特性分析 9
4.2 深度处理技术的实际应用效果 9
4.3 回用技术在工业园区的实践 10
4.4 案例中存在问题及改进建议 10
4.5 案例对技术推广的启示 11
结论 12
参考文献 13
致 谢 14
