功能型天然锰砂填料人工湿地对再生水的深度净化研究

许斌; 刘潇雨; 高梦佳; 赵薇; 刘浩; 刘莉; 常峰; 毕学军; 蔡言安

doi:10.13205/j.hjgc.202604013

功能型天然锰砂填料人工湿地对再生水的深度净化研究

doi: 10.13205/j.hjgc.202604013

许斌¹,
刘潇雨¹,
高梦佳¹,
赵薇²,
刘浩³,
刘莉¹,
常峰¹,
毕学军²,
蔡言安^2, ,

1. 青岛海湾中水有限公司, 山东青岛 266002;
2. 青岛理工大学环境与市政工程学院, 山东青岛 266520;
3. 青岛水务集团环境能源有限公司, 山东青岛 266002

基金项目:

山东省自然科学基金项目（ZR2021ME059）

详细信息

作者简介:
许斌(1969—),男,主要研究方向为水处理。without1100@sina.com

通讯作者:
蔡言安(1986—),男,副教授,博士,主要研究方向为锰氧化细菌及其工程化应用。cya_yanan@163.com

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出版历程
- 收稿日期: 2025-07-30
- 网络出版日期: 2026-06-06
- 刊出日期: 2026-04-01

Enhanced treatment of reclaimed water using functional manganese-sand media in constructed wetlands

1. Qingdao Haiwan Zhongshui Co., Ltd., Qingdao 266002, China;
2. School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266520, China;
3. Qingdao Water Group Environmental Energy Co., Ltd., Qingdao 266002, China

摘要

摘要: 再生水是一种非常规水源，可为地表自然水体提供补给水源，有效缓解河湖缺水断流、水动力匮乏等问题。但再生水中残留污染物可能存在一定的潜在生态风险。实验搭建了复合垂直流人工湿地小试装置（填料为锰矿砂、石英砂和鹅卵石）并运行约140 d，期间考察了氮、磷和有机物的去除能力，研究了再生水净化后的潜在生态毒性效应，并评估了锰矿砂作为功能型填料的适应性。结果表明：装置运行2~3个月后，在氨氮和磷酸盐质量浓度最高为0.4 mg/L和0.2 mg/L条件下，两者去除率保持在90%和80%以上；NO₃^--N和耗氧性有机物（以COD计）质量浓度最高为8 mg/L和30 mg/L条件下，两者平均去除量分别为0.67，4.2 mg/L。锰矿砂强化了再生水中残留有机物的分解去除，三维荧光强度降低26%，UV₂₅₄值降低38%，4种目标抗生素去除率达到70.8%。再生水经过净化后无明显的遗传毒性，细胞微核千分率接近自来水水平，未浓缩的样品未表现出急性生物毒性。该研究可为再生水水质的提升改善以及潜在生态风险控制提供技术支撑和参考。
- 再生水 /
- 人工湿地 /
- 生态评价 /
- 锰矿砂 /
- 基质层
Abstract: Reclaimed water is an alternative water source that can help replenish natural lakes and rivers， alleviating issues such as water scarcity， flow disruptions， and poor water flow. Residual pollutants in reclaimed water could pose an ecological danger. Therefore， a pilot-scale hybrid vertical flow constructed wetland system， filled with manganese ore sand， quartz sand， and cobblestones， was constructed and operated for about 140 days. During this operation period， the efficiencies in removing nitrogen， phosphorus， and organic matter were studied. Also， the potential ecotoxicological effects exhibited by the purified reclaimed water were investigated. The practicality for the use of manganese ore sand as a functional filler was also assessed. The results demonstrated that after 2 to 3 months of operation， the removal efficiencies for ammonia and phosphate maintained above 90% and 80%， with their influent concentrations below 0.4 mg/L and 0.2 mg/L， respectively. With influent concentrations of 4 to 8 mg/L for nitrate and below 30 mg/L for oxygen-consuming organic matter （measured as COD）， their average concentration reductions remained below 1.0 mg/L and 5 mg/L， respectively. The manganese ore sand enhanced the decomposition and removal of residual organic matter， achieving 48% of reduction in 3D fluorescence intensity， a 38% decrease in UV₂₅₄， and 70.8% in the removal of four target antibiotics. The reclaimed water after treatment exhibited no significant genotoxicity， its cell micronucleus rate approached that of tap water levels， and non-concentrated samples showed no acute biotoxicity. This study provides technical support for enhancing reclaimed water quality and controlling associated ecological risks.
- reclaimed water /
- constructed wetland /
- ecological assessment /
- manganese sand /
- substrate layer

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