工业水处理 ›› 2021, Vol. 41 ›› Issue (5): 114-118. doi: 10.11894/iwt.2020-0705

• 试验研究 • 上一篇    下一篇

同步硝化反硝化好氧颗粒污泥的快速培养

郑焕焕(),李海松*()   

  1. 郑州大学生态与环境学院, 河南郑州 450001
  • 收稿日期:2021-03-20 出版日期:2021-05-20 发布日期:2021-05-26
  • 通讯作者: 李海松 E-mail:2679606391@qq.com;lihai0011@sina.com
  • 作者简介:郑焕焕(1994-), 硕士研究生。电话: 18838918991, E-mail: 2679606391@qq.com
  • 基金资助:
    河南省产学研合作项目(22140006)

Rapid cultivation of aerobic granular sludge with simultaneous nitrification and denitrification

Huanhuan Zheng(),Haisong Li*()   

  1. College of Ecology and Environment, Zhengzhou University, Zhengzhou 450001, China
  • Received:2021-03-20 Online:2021-05-20 Published:2021-05-26
  • Contact: Haisong Li E-mail:2679606391@qq.com;lihai0011@sina.com

摘要:

建立2个反应器(R0、R1)培养好氧颗粒污泥,并通过向R1投加生物质炭促进颗粒污泥的形成。结果表明:投加1.5 g/L的生物质炭可加速颗粒化进程,在第11天形成以生物质炭作为晶核的颗粒污泥;与R0相比,R1中的颗粒污泥结构更致密、表面更光滑。然而生物质炭的投加对反应器性能无明显影响:2个反应器的COD和总氮去除率都可达到95%和65%以上;在一个反应周期内反应器中均无NO3--N和NO2--N积累,表明2个反应器均实现了同步硝化反硝化脱氮。

关键词: 生物质炭, 好氧颗粒污泥, 晶核, 同步硝化反硝化

Abstract:

Two reactors R0 and R1 were established to cultivate aerobic granular sludge, and biochar was added to R1 to promote the formation of granular sludge. The results showed that adding 1.5 g/L biochar could accelerate the granulation process, and the granular sludge with biochar as the nucleus was formed at the 11th day. Compared with R0, the granular sludge structure in R1 was denser, and its surface was smoother. However, adding biochar had no obvious influence on the performance of the reactor. The COD and total nitrogen removal efficiencies of both two reactors reached over 95% and 65%. Meanwhile, there had no accumulation of NO3--N and NO2--N in the reactor during a cycle, indicating both reactors achieved simultaneous nitrification and denitrification.

Key words: biochar, aerobic granular sludge, nucleus, simultaneous nitrification and denitrification

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