容积交换率对SNAD污泥颗粒化与稳定运行的影响

李冬; 田海成; 梁瑜海; 范丹; 张杰

doi:10.11918/j.issn.0367-6234.201509117

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容积交换率对SNAD污泥颗粒化与稳定运行的影响

更新时间：2026-10-19

- 容积交换率对SNAD污泥颗粒化与稳定运行的影响
- Influence of volumetric exchange rate on granulation and stable operation simultaneous partial nitrification, anaerobic ammonium oxidation and denitrification (SNAD) sludge
- 哈尔滨工业大学学报 2017年49卷第8期页码：2017-8
- 作者机构：
  
  1. 水质科学与水环境恢复工程北京市重点实验室(北京工业大学),北京,100124
  2. 城市水资源与水环境国家重点实验室(哈尔滨工业大学),哈尔滨,150090
- 作者简介：
- 基金信息：
  
  北京市青年拔尖团队项目(2014000026833TD02)
- DOI：10.11918/j.issn.0367-6234.201509117
  中图分类号： X703.1
- 纸质出版：2017
- 稿件说明：
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李冬, 田海成, 梁瑜海, 等. 容积交换率对SNAD污泥颗粒化与稳定运行的影响[J]. 哈尔滨工业大学学报, 2017,49(8):2017-8.

LI Dong, TIAN Haicheng, LIANG Yuhai, et al. Influence of volumetric exchange rate on granulation and stable operation simultaneous partial nitrification, anaerobic ammonium oxidation and denitrification (SNAD) sludge[J]. 2017, 49(8): 2017-8.
李冬, 田海成, 梁瑜海, 等. 容积交换率对SNAD污泥颗粒化与稳定运行的影响[J]. 哈尔滨工业大学学报, 2017,49(8):2017-8. DOI： 10.11918/j.issn.0367-6234.201509117.

LI Dong, TIAN Haicheng, LIANG Yuhai, et al. Influence of volumetric exchange rate on granulation and stable operation simultaneous partial nitrification, anaerobic ammonium oxidation and denitrification (SNAD) sludge[J]. 2017, 49(8): 2017-8. DOI： 10.11918/j.issn.0367-6234.201509117.

摘要

为研究不同容积交换率对同步亚硝化-厌氧氨氧化与反硝化工艺(SNAD)污泥颗粒化及稳定运行的影响

采用容积交换率分别为37.5%(R1) 和75%(R2) 的SBR进行对比实验.结果表明，R1仅用36 d就实现了颗粒化，比R2快1/3，且颗粒化过程中R1的污泥流失较小; R1总氮去除速率(RNR)、单位MLVSS好氧氨氧化活性(RAO)和厌氧氨氧化活性(RAN)分别为0.356 g·L-1·d-1，0.113 0和0.080 9 g·g-1·d-1; R2的RNR、RAO和RAN分别为0.248 g·L-1·d-1，0.093 6和0.070 5 g·g-1·d-1.由此表明：较小的容积交换率有利于减少絮体流失，从而加快SNAD污泥的颗粒化进程; 有利于提高AOB与AnAOB的活性以及抑制NOB活性，从而实现SNAD工艺稳定高效的去除效果.

Abstract

In order to study the effect of different volumetric exchange rates (VER) on the granulation and stable operation of SNAD sludge

two lab-scale SBR reactors

with a 37.5% VER (R1) and 75% VER (R2)

were comparably analyzed. Experimental results demonstrated that the granulation of R1 could be achieved in 36 days

was 12 days faster than R2. Meanwhile

a relatively lower sludge loss rate of R1 was obtained. The nitrogen removal rate (RNR)

RAO and RAN in R1 were 0.356 g·L-1·d-1

0.113 0 and 0.080 9 g·g-1·d-1

respectively; while that of R2 was 0.248 g·L-1·d-1

0.093 6 and 0.070 5 g·g-1·d-1

respectively. This confirmed that a lower VER reduced the loss of floc sludge

and further declined the granulation period. Moreover

a lower VER not only enhanced the activity of ammonia-oxidizing and anaerobic ammonia-oxidizing bacteria

but also suppressed nitrite-oxidizing bacteria

was benefit for a stable and efficient removal performance of the SNAD granular sludge.

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