双物化耦合OHO生物工艺的协同优化及水处理增效机制：以焦化废水为例

王晴; 成晓倩; 柯雄; 陈啊聪; 陈尧; 杨璇; 邱光磊; 韦朝海

doi:10.13205/j.hjgc.202509004

双物化耦合OHO生物工艺的协同优化及水处理增效机制：以焦化废水为例

doi: 10.13205/j.hjgc.202509004

王晴¹,
成晓倩¹,
柯雄¹,
陈啊聪^1,2,
陈尧¹,
杨璇¹,
邱光磊¹,
韦朝海^1, ,

1. 华南理工大学环境与能源学院, 广州 510006;
2. 厦门理工学院环境科学与工程学院, 福建厦门 361000

基金项目:

国家重点研发计划“低碳约束下沿长江工业园区废水近零排放技术与示范”（2023YFC3207005）

详细信息

作者简介:
王晴（2001—），女，硕士研究生，主要研究方向为污水资源化利用。2431687901@qq.com

通讯作者:
韦朝海（1962—），男，博士，教授，主要研究方向为水污染控制理论与技术。cechwei@scut.edu.cn

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- 文章访问数: 28
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出版历程
- 收稿日期: 2024-11-05
- 网络出版日期: 2025-11-05
- 刊出日期: 2025-09-01

Synergistic optimization and efficiency enhancement mechanisms of pre- and post-physicochemical coupled OHO biological treatment： a case study on coking wastewater

1. School of Environment and Energy, South China University of Technology, Guangzhou 510006, China;
2. School of Environmental Science and Engineering, Xiamen University of Technology, Xiamen 361000, China

摘要

摘要: 当前在工业废水处理中普遍存在能源消耗高的问题，节能降耗和资源回收已成为关键的应对策略。对此，以焦化废水为研究对象，通过双物化耦合OHO生物工艺平台，寻求资源化与污染控制协同的新途径。研究表明：亚铁盐在前物化单元中表现出优越的CN^-和S^2-去除能力，聚合硫酸铁（PFS）与活性炭（AC）对生物出水表现出高效净化效果。借助相关性分析耦合模型优化前物化单元的操作条件，将FeSO₄·7H₂O的投加量降低了120 mg/L。采用响应曲面分析，分别将AC和PFS的投加量减少了130，100 mg/L。同时结合污泥逆流回用策略，在工程实践中发现优化后出水COD、TN、CN-、S²-的浓度分别从原水的（3750±12），（300±28），（26.7±2.4），（143±15） mg/L降低到（44.6±8.0），（15.7±2.5），（0.12±0.02），（0.08±0.01） mg/L，实现了污染物的深度减排。同时，与传统运行模式比较，运行费用节省了2.31 元/m³，具有显著经济效益。结果表明：通过赋予各单元在整体系统中的特定角色和功能定义，挖掘不同处理阶段的深度耦合机制，可以实现废水处理系统工程的优化运行目标。
- 焦化废水 /
- OHO工艺 /
- 物化技术 /
- 资源优化 /
- 模型分析
Abstract: In the current landscape of industrial wastewater treatment， high energy and material consumption is widespread and poses significant challenges. Consequently， implementing strategies focused on energy conservation， efficiency improvement， and resource recovery has become essential to address these issues. This comprehensive study， focusing on coking wastewater treatment， seeks to develop an advanced synergistic strategy between resource recovery and stringent pollution control， by utilizing an innovative platform that couples physicochemical pre- and post-treatment with the OHO biological process. The findings revealed that ferrous salts demonstrated outstanding performance in the effective removal of cyanide ions （CN^-） and sulfide ions （S^2-） during the preliminary physicochemical treatment stage. Furthermore， the synergistic application of poly-ferric sulfate （PFS） combined with activated carbon （AC） has been proven to enable highly efficient purification of effluent discharged from biological treatment processes. By utilizing an advanced correlation analysis coupled model， the operational parameters of the preliminary physicochemical treatment unit were systematically refined， leading to the adjustment and reduction of the FeSO₄·7H₂O dosage to an optimized level of 120 mg/L. Additionally， through the application of response surface analysis， the study successfully achieved significant reductions in the dosages of both activated carbon （AC） and poly-ferric sulfate （PFS）， decreasing them by 130 mg/L and 100 mg/L， respectively. Furthermore， the strategic introduction of a meticulously engineered sludge countercurrent recycling mechanism demonstrated—through detailed engineering applications and practical verification—that the optimized effluent concentrations of COD， TN， CN^-， and S^2- were remarkably reduced from their original levels of （3750±12），（300±28），（26.7±2.4），（143±15） mg/L to impressively low levels of （44.6±8.0），（15.7±2.5），（0.12±0.02），（0.08±0.01） mg/L， respectively. This achievement successfully accomplished the deep reduction of pollutant emissions， demonstrating the effectiveness of the method in significantly lowering contaminant levels. Meanwhile， in comparison with conventional operational paradigms， this novel approach has been proven to deliver a significant reduction in operational costs， amounting to 2.31 yuan/m³， highlighting its profound economic and ecological benefits. These results demonstrate that by assigning specific， clearly defined roles and tailored functional objectives to each unit within the system， and by systematically exploring the deeply interconnected mechanisms across diverse treatment stages， the goals of wastewater treatment system optimization can be comprehensively and effectively realized.
- coking wastewater /
- OHO process /
- physicochemical technology /
- resource optimization /
- model analysis

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参考文献(26)

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