Optimization on combined UV/chlorine process for removal of ammonia in drinking water

ZHANG Xinran; LI Weiguang; GONG Xujin; FAN Wenbiao; REN Pengfei

doi:10.3969/j.issn.0438-1157.2014.03.039

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Optimization on combined UV/chlorine process for removal of ammonia in drinking water

更新时间：2025-12-10

- Optimization on combined UV/chlorine process for removal of ammonia in drinking water
- CIESC Journal Issue 3, Pages: 1049-1055(2014)
- 作者机构：
  
  1. 哈尔滨工业大学市政环境工程学院,黑龙江,哈尔滨,150090
  2. 城市水资源与水环境国家重点实验室,黑龙江,哈尔滨,150090
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2014.03.039
  CLC： U991.24
- Online First：05 March 2014，
  
  Published：05 March 2014
- 稿件说明：
移动端阅览
ZHANG Xinran, LI Weiguang, GONG Xujin, et al. Optimization on combined UV/chlorine process for removal of ammonia in drinking water[J]. CIESC Journal, 2014, (3): 1049-1055.
DOI：

ZHANG Xinran, LI Weiguang, GONG Xujin, et al. Optimization on combined UV/chlorine process for removal of ammonia in drinking water[J]. CIESC Journal, 2014, (3): 1049-1055. DOI： 10.3969/j.issn.0438-1157.2014.03.039.

摘要

基于响应面优化法，研究紫外/氯耦合处理饮用水中氨氮的效能。考察氯氮质量比、紫外辐射时间和pH值3个影响因素及其交互作用对氨氮去除的影响，采用二阶方程进行数学模拟，并优化工艺条件。结果表明，紫外/氯耦合技术能有效去除氨氮，三因素均对氨氮的去除影响显著，各因素的交互作用也显著存在。数学拟合模型的相关系数较高（R2=0.992），模型回归性好。满足饮用水氨氮出水要求（0.5 mg·L-1）的最优工艺条件为：氯氮质量比4.00，紫外辐射时间6.00 min和pH值7.5。验证实验结果与预测值的偏差仅为0.64%，响应面拟合方程可用于氨氮去除率的预测和最优工艺条件的确定。紫外/氯耦合技术是一种新型的氨氮去除方法，具有投药量小、去除效率高、操作简单等优点。

Abstract

The combined UV/chlorine process

as a photochemistry process

was investigated to improve the removal efficiency of ammonia in drinking water. Based on a central composite design

the effects of Cl/N mass ratio

UV radiation time and pH value and their combination on the ammonia removal rate were evaluated. Based on a mathematical model established between them

and these technical parameters for the combined UV/chlorine process was optimized. The results showed that all of the three factors had significant impacts on ammonia removal and the combined influence of Cl/N mass ratio and UV radiation time was also outstanding. Furthermore

the prediction of a second-order regression model (R2=0.992) derived by response surface methodology was satisfactory. The conditions obtained by optimization to meet the standard of ammonia concentration in drinking water (0.5 mg·L-1) were: Cl/N mass ratio 4.00

UV radiation time 6.00 min and pH value 7.5. The experimental value agreed with the predicted value with only 0.64% deviation. Finally

these results illustrated that combined UV/chlorine process was an effectively alternative method for ammonia-containing water treatments

with several advantages of low chemical consumption

high efficiency and easy operation.

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