Destruction and restorative of nitrification performance in aqueduct by pre-chlorination

ZHAO Lele; LI Xing; YANG Yanling; ZHU Yongjuan; LI Guibai

doi:10.3969/j.issn.0438-1157.2013.04.038

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Destruction and restorative of nitrification performance in aqueduct by pre-chlorination

更新时间：2025-12-10

- Destruction and restorative of nitrification performance in aqueduct by pre-chlorination
- CIESC Journal Issue 4, Pages: 1403-1407(2013)
- 作者机构：
  
  1. 北京工业大学建筑工程学院,北京,100124
  2. 哈尔滨工业大学市政环境工程学院,黑龙江,哈尔滨,150090
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2013.04.038
  CLC： U991
- Online First：05 April 2013，
  
  Published：05 April 2013
- 稿件说明：
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ZHAO Lele, LI Xing, YANG Yanling, et al. Destruction and restorative of nitrification performance in aqueduct by pre-chlorination[J]. CIESC Journal, 2013, (4): 1403-1407.
DOI：

ZHAO Lele, LI Xing, YANG Yanling, et al. Destruction and restorative of nitrification performance in aqueduct by pre-chlorination[J]. CIESC Journal, 2013, (4): 1403-1407. DOI： 10.3969/j.issn.0438-1157.2013.04.038.

摘要

采用稳定运行的环状生物膜反应器(bio-films annular reactor

BAR)模拟原水长距离输水管道水质净化过程

以不同投氯方式进行预氯化对原水输水管道硝化性能的破坏与恢复试验研究。结果表明

预氯化对管道生物膜AOB损伤较大

灭活率为4.96log

对NH4+-N、NO2--N去除效能影响明显。恢复阶段CT值越高生物膜中AOB恢复生长速率越快。生物膜对NH4+-N去除效能的恢复较NO2--N快2 d

NH4+-N、NO2--N分别在第8 d和第10 d完成恢复。生膜中AOB数量的恢复与管道对NH4+-N的去除率之间存在明显的相关性

其相关系数可达到92%。

Abstract

The process

that is destruction and recovery of nitrification performance in aqueduct by pre-chlorination

is simulated by a BAR(bio-film annular reactor) with addition of chlorine in different ways.The results showed that pre-chlorination can cause larger damage to the bio-film AOB on pipe

and give significant influence on removal of NH4+-N and NO2--N.Higher CT value is

higher growth rate AOB during recovery stage of bio-film.The recovery was quicker for removal performance of NH4+-N (8 d) than for that of NO2--N(10 d).Finally

it is found that there has remarkable correlation between amount of AOB and removal rate of NH4+-N in pipe

and their correlation coefficient can reach as high as 92%.

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