Effect of seed sludge on nitrogen removal in a novel upflow microaerobic sludge reactor for treating piggery wastewater

Jia Meng; Jiuling Li; Jianzheng Li; Cheng Wang; Kaiwen Deng; Kai Sun

doi:10.1016/j.biortech.2016.05.034

Effect of seed sludge on nitrogen removal in a novel upflow microaerobic sludge reactor for treating piggery wastewater

Jia Meng
, Jiuling Li^*
, Jianzheng Li
, Cheng Wang
, Kaiwen Deng
, Kai Sun

^*Corresponding author for this work

School of Environment

Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

Abstract

Anaerobic activated sludge (AnaS) and aerobic activated sludge (AerS) were used to start up a novel upflow microaerobic sludge reactor (UMSR), respectively, and the nitrogen removal in the two reactors were evaluated when treating low C/N ratio manure-free piggery wastewater with a COD/TN ration of about 0.85. With the same hydraulic retention time 8 h and TN loading rate (NLR) 0.42 kg/(m³ d), the UMSR (R2) inoculated with AerS could reach its steady state earlier and obtained a better TN removal than that in the UMSR (R1) inoculated with AnaS. However, the accumulated AnaS made R1 show a better capability in bearing shock load and demonstrated an excellent NH₄⁺-N and TN removal with a NLR as high as 1.07 kg/(m³ d). Microbial community structure of the accumulated AerS and AnaS were observable different. The decreased proportion of nitrifiers restricted the ammonium oxidation in R2, and resulting in a decrease in TN removal.

Original language	English
Pages (from-to)	19-27
Number of pages	9
Journal	Bioresource Technology
Volume	216
DOIs	https://doi.org/10.1016/j.biortech.2016.05.034
State	Published - 1 Sep 2016

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Microaerobic process
Microbial community structure
Nitrogen removal
Piggery wastewater
Seed sludge

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10.1016/j.biortech.2016.05.034

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title = "Effect of seed sludge on nitrogen removal in a novel upflow microaerobic sludge reactor for treating piggery wastewater",

abstract = "Anaerobic activated sludge (AnaS) and aerobic activated sludge (AerS) were used to start up a novel upflow microaerobic sludge reactor (UMSR), respectively, and the nitrogen removal in the two reactors were evaluated when treating low C/N ratio manure-free piggery wastewater with a COD/TN ration of about 0.85. With the same hydraulic retention time 8 h and TN loading rate (NLR) 0.42 kg/(m3 d), the UMSR (R2) inoculated with AerS could reach its steady state earlier and obtained a better TN removal than that in the UMSR (R1) inoculated with AnaS. However, the accumulated AnaS made R1 show a better capability in bearing shock load and demonstrated an excellent NH4+-N and TN removal with a NLR as high as 1.07 kg/(m3 d). Microbial community structure of the accumulated AerS and AnaS were observable different. The decreased proportion of nitrifiers restricted the ammonium oxidation in R2, and resulting in a decrease in TN removal.",

keywords = "Microaerobic process, Microbial community structure, Nitrogen removal, Piggery wastewater, Seed sludge",

author = "Jia Meng and Jiuling Li and Jianzheng Li and Cheng Wang and Kaiwen Deng and Kai Sun",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd.",

year = "2016",

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day = "1",

doi = "10.1016/j.biortech.2016.05.034",

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T1 - Effect of seed sludge on nitrogen removal in a novel upflow microaerobic sludge reactor for treating piggery wastewater

AU - Meng, Jia

AU - Li, Jiuling

AU - Li, Jianzheng

AU - Wang, Cheng

AU - Deng, Kaiwen

AU - Sun, Kai

PY - 2016/9/1

Y1 - 2016/9/1

N2 - Anaerobic activated sludge (AnaS) and aerobic activated sludge (AerS) were used to start up a novel upflow microaerobic sludge reactor (UMSR), respectively, and the nitrogen removal in the two reactors were evaluated when treating low C/N ratio manure-free piggery wastewater with a COD/TN ration of about 0.85. With the same hydraulic retention time 8 h and TN loading rate (NLR) 0.42 kg/(m3 d), the UMSR (R2) inoculated with AerS could reach its steady state earlier and obtained a better TN removal than that in the UMSR (R1) inoculated with AnaS. However, the accumulated AnaS made R1 show a better capability in bearing shock load and demonstrated an excellent NH4+-N and TN removal with a NLR as high as 1.07 kg/(m3 d). Microbial community structure of the accumulated AerS and AnaS were observable different. The decreased proportion of nitrifiers restricted the ammonium oxidation in R2, and resulting in a decrease in TN removal.

AB - Anaerobic activated sludge (AnaS) and aerobic activated sludge (AerS) were used to start up a novel upflow microaerobic sludge reactor (UMSR), respectively, and the nitrogen removal in the two reactors were evaluated when treating low C/N ratio manure-free piggery wastewater with a COD/TN ration of about 0.85. With the same hydraulic retention time 8 h and TN loading rate (NLR) 0.42 kg/(m3 d), the UMSR (R2) inoculated with AerS could reach its steady state earlier and obtained a better TN removal than that in the UMSR (R1) inoculated with AnaS. However, the accumulated AnaS made R1 show a better capability in bearing shock load and demonstrated an excellent NH4+-N and TN removal with a NLR as high as 1.07 kg/(m3 d). Microbial community structure of the accumulated AerS and AnaS were observable different. The decreased proportion of nitrifiers restricted the ammonium oxidation in R2, and resulting in a decrease in TN removal.

KW - Microaerobic process

KW - Microbial community structure

KW - Nitrogen removal

KW - Piggery wastewater

KW - Seed sludge

UR - https://www.scopus.com/pages/publications/84969204424

U2 - 10.1016/j.biortech.2016.05.034

DO - 10.1016/j.biortech.2016.05.034

M3 - 文章

C2 - 27218438

AN - SCOPUS:84969204424

SN - 0960-8524

VL - 216

SP - 19

EP - 27

JO - Bioresource Technology

JF - Bioresource Technology

ER -

Effect of seed sludge on nitrogen removal in a novel upflow microaerobic sludge reactor for treating piggery wastewater

Abstract

UN SDGs

Keywords

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