Process of synchronized removal of NO3--N and PO43--P from pond aquaculture tailwater by sulfur-iron based reactors

HOU Liang; CHEN Ruiya; CHEN Jingyi; MA Shuaibing; XU Juchen; ZHENG Yueying; HOU Jie; HE Xugang

doi:10.13300/j.cnki.hnlkxb.2025.05.030

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Process of synchronized removal of NO₃^--N and PO₄^3--P from pond aquaculture tailwater by sulfur-iron based reactors

Food science and agricultural engineering | 更新时间：2026-11-05

- Process of synchronized removal of NO₃^--N and PO₄^3--P from pond aquaculture tailwater by sulfur-iron based reactors
- Journal of Huazhong Agricultural University Vol. 44, Issue 5, Pages: 299-307(2025)
- 作者机构：
  
  1.华中农业大学水产学院，武汉430070
  2.长江经济带大宗水生生物产业绿色发展教育部工程研究中心，武汉430070
- 作者简介：
- 基金信息：
- DOI：10.13300/j.cnki.hnlkxb.2025.05.030
  CLC： X714
- Received：04 June 2024，
  
  Published：15 September 2025
- 稿件说明：
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侯亮，陈瑞亚，陈婧怡，等.硫-铁矿石为基质的反应器同步去除池塘养殖尾水NO₃^--N和PO₄^3--P工艺研究［J］.华中农业大学学报，2025，44（5）：299‐307. DOI: 10.13300/j.cnki.hnlkxb.2025.05.030.

HOU Liang,CHEN Ruiya,CHEN Jingyi,et al.Process of synchronized removal of NO₃^--N and PO₄^3--P from pond aquaculture tailwater by sulfur-iron based reactors[J].Journal of Huazhong Agricultural University,2025,44(05):299-307. DOI: 10.13300/j.cnki.hnlkxb.2025.05.030.
侯亮，陈瑞亚，陈婧怡，等.硫-铁矿石为基质的反应器同步去除池塘养殖尾水NO₃^--N和PO₄^3--P工艺研究［J］.华中农业大学学报，2025，44（5）：299‐307. DOI: 10.13300/j.cnki.hnlkxb.2025.05.030. DOI：

HOU Liang,CHEN Ruiya,CHEN Jingyi,et al.Process of synchronized removal of NO₃^--N and PO₄^3--P from pond aquaculture tailwater by sulfur-iron based reactors[J].Journal of Huazhong Agricultural University,2025,44(05):299-307. DOI: 10.13300/j.cnki.hnlkxb.2025.05.030. DOI：

摘要

为提升和优化池塘养殖尾水处理技术与工艺，构建以磁黄铁矿（B1组）、磁黄铁矿+硫磺（B2组）、菱铁矿+硫磺（B3组）、磁黄铁矿+硫磺+石灰石（B4组）为基质的4种反应器，并对池塘养殖尾水NO

-N和PO

-P的去除效果及反应器安全性进行对比。结果显示：（1）水力停留时间分别为24、12和6 h 条件下，B3组的NO

-N去除效果最佳，其出水NO

-N平均质量浓度最低为0.17 mg/L，最高为0.61 mg/L，去除率均高于80%。B1组和B3组对PO

-P的去除效果最好，其出水PO

-P平均质量浓度最低为0.08 mg/L，最高为0.42 mg/L，去除率均高于70%。（2）B1组和B3组出水硫酸盐和总铁质量浓度更低，安全性更高；2组的硫酸盐平均质量浓度范围分别为98.67~245.45、133.33~294.71 mg/L，总铁平均质量浓度范围分别为0.044~3.07、1.32~7.90 mg/L。从出水NO

-N质量浓度看，4组反应器的安全性从高到低为B4

B2=B3

B1；从出水NH

-N质量浓度看，4组反应器的安全性从高到低为B1

B2=B3

B4。以上研究结果表明，B3组同时具备高效的NO

-N和PO

-P去除能力和较高的安全性，可应用于实际养殖尾水处理。

Abstract

In order to enhance and optimize the technology and processes involved in tailwater treatment for pond aquaculture，the removal effects of four types of reactors with pyrrhotite （Group B1），pyrrhotite+sulfur （Group B2），siderite+sulfur （Group B3），and pyrrhotite+sulfur+limestone （Group B4） as the substrates were constructed，and the removal efficiencies of NO

-N and PO

-P in the tailwater from pond aquaculture as well as the safety of the reactors were compared.The results were as follows：（1） Under the conditions of hydraulic retention times of 24 h，12 h and 6 h，Group B3 exhibited the most effective removal of NO

-N ，with an average mass concentration of NO

-N in its effluent ranging from a minimum of 0.17 mg/L to a maximum of 0.61 mg/L，achieving a removal rate exceeding 80%.Both Groups B1 and B3 had the most effective removal of PO

-P，with an average mass concentration of PO

-P in their effluent measuring as low as 0.08 mg/L and as high as 0.42 mg/L，and the removal rate exceeded 70%.（2） The effluent sulfate and TFe concentrations in Groups B1 and B3 were lower and safer.Their average sulfate mass concentrations at three hydraulic retention times ranged from 98.67 mg/L to 245.45 mg/L and from 133.33 mg/L to 294.71 mg/L，respectively.The average TFe mass concentrations varied from 0.044 mg/L to 3.07 mg/L and from 1.32 mg/L to 7.90 mg/L，respectively.In terms of effluent NO

-N concentration，the safety ranking of the four groups of reactors，from highest to lowest，was B4

B2=B3

B1.Conversely，regarding effluent NH

-N concentration，the safety ranking from highest to lowest was B1

B2=B3

B4.The above results indicate that Group B3 demonstrates both high efficiency and high safety in the removal of NO

-N and PO

-P，and it can be applied to actual aquaculture tailwater treatment.

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references

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