Removal Effect and Condition Optimization of Low Carbon to Nitrogen Ratio Wastewater by Potassium Ferrate

段卫党; 赵红; 夏聪聪; 任天成

doi:10.16056/j.2096-7705.2021.03.011

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Removal Effect and Condition Optimization of Low Carbon to Nitrogen Ratio Wastewater by Potassium Ferrate

更新时间：2026-01-19

- Removal Effect and Condition Optimization of Low Carbon to Nitrogen Ratio Wastewater by Potassium Ferrate
- Issue 3, Pages: 53-57(2021)
- 作者机构：
  
  1. 江西省交通投资集团有限责任公司
  2. 江西省交通运输科学研究院有限公司
- 作者简介：
- 基金信息：
- DOI：10.16056/j.2096-7705.2021.03.011
  CLC： X703
- Published：2021
- 稿件说明：
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段卫党, 赵红, 夏聪聪, et al. Removal Effect and Condition Optimization of Low Carbon to Nitrogen Ratio Wastewater by Potassium Ferrate[J]. 2021, (3): 53-57.
DOI：

段卫党, 赵红, 夏聪聪, et al. Removal Effect and Condition Optimization of Low Carbon to Nitrogen Ratio Wastewater by Potassium Ferrate[J]. 2021, (3): 53-57. DOI： 10.16056/j.2096-7705.2021.03.011.

摘要

为探讨一种用于处理低碳氮比(c（C）/c（N）)猪场沼液的应急处理方法

采用高铁酸钾（K

FeO

）这种绿色氧化剂分别从投加量、pH值及温度等3个因素开展对猪场沼液中COD、NH

-N和TP的去除研究。结果表明

FeO

对NH

-N的去除效果不明显

但能快速有效去除沼液中的COD和TP

且呈现正相关的剂量关系。在400m L猪场沼液中加入0.48 g高铁酸钾形成含有1 200 mg/L K

FeO

的反应体系

反应120 min后

出水COD和TP质量浓度分别达146.0 mg/L和11.2 mg/L

去除率为49.7%和58.7%;而酸性体系可进一步提升其去除效率

在初始p H值为3.0时

对COD和TP去除率分别提升至92.1%和85.6%

出水质量浓度为23.0 mg/L和3.9 mg/L;而低温条件也更有利于促进该反应的进行。因此

可将K

FeO

作为去除猪场沼液的一种应急方法予以考虑和应用研究。

Abstract

An emergency treatment method for treating farm biogas slurry with low carbon to nitrogen ratio（c（C）/c（N）） was discussed. Potassium ferrate（K2 FeO4）

a green oxidant

was used to remove COD

-N and TP from biogas slurry of pig farms. The removal experiments were carried out from three factors including dosage

pH value and temperature. The experiments results that the removal effect of K

FeO

on NH

-N was not obvious

but K

FeO

could quickly and effectively remove COD and TP in farm biogas slurry

and showed a positive dose correlation. A reaction system containing 1 200 mg/L K

FeO

was formed by adding 0.48 g potassium ferrate into 400 m L pig biogas slurry. After 120 min of reaction

the effluent COD and TP mass concentrations reached 146.0 mg/L and 11.2 mg/L

respectively

and the removal rates were 49.7% and58.7%. The acid system can further improve the removal efficiency. When the initial pH value was 3.0

the removal rates of COD and TP were increased to 92.1% and 85.6%

respectively

and the effluent mass concentration was 23.0 mg/L and 3.9 mg/L. And the low temperature condition is more conducive to the reaction. Therefore

FeO

could be considered as an emergency method for removing farm biogas slurry and applied research.

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