The effect and biological mechanism of COD/TN ratio on nitrogen removal in a novel upflow microaerobic sludge reactor treating manure-free piggery wastewater

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

doi:10.1016/j.biortech.2016.03.008

The effect and biological mechanism of COD/TN ratio on nitrogen removal in a novel upflow microaerobic sludge reactor treating manure-free piggery wastewater

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

^*Corresponding author for this work

School of Environment

Harbin Institute of Technology
Centre de recherche industrielle du Québec

Research output: Contribution to journal › Review article › peer-review

50 Scopus citations

Abstract

A novel upflow microaerobic sludge reactor (UMSR) was constructed to treat manure-free piggery wastewater with high NH₄⁺-N concentration and low COD/TN ratio, and the effect and biological mechanism of COD/TN ratio on nitrogen removal were investigated at a constant hydraulic retention time of 8 h and 35 °C. The results showed that the UMSR could treat the wastewater with a better synchronous removal of COD, NH₄⁺-N and TN. The microaerobic UMSR allowed nitrifiers, and heterotrophic and autotrophic denitrifiers to thrive in the flocs, revealing a multiple nitrogen removal mechanism in the reactor. Both the nitrifiers and denitrifiers would be restricted by an influent COD/TN ratio more than 0.82, resulting in a decrease of TN removal in the UMSR. To get a TN removal over 80% with a TN load removal above 0.86 kg/(m³·d) in the UMSR, the influent COD/TN ratio should be less than 0.70.

Original language	English
Pages (from-to)	360-368
Number of pages	9
Journal	Bioresource Technology
Volume	209
DOIs	https://doi.org/10.1016/j.biortech.2016.03.008
State	Published - 1 Jun 2016

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Biological mechanism
COD/TN ratio
Microaerobic treatment
Nitrogen removal
Piggery wastewater

Access to Document

10.1016/j.biortech.2016.03.008

Cite this

@article{4096755783cd423380b08e9d27172884,

title = "The effect and biological mechanism of COD/TN ratio on nitrogen removal in a novel upflow microaerobic sludge reactor treating manure-free piggery wastewater",

abstract = "A novel upflow microaerobic sludge reactor (UMSR) was constructed to treat manure-free piggery wastewater with high NH4+-N concentration and low COD/TN ratio, and the effect and biological mechanism of COD/TN ratio on nitrogen removal were investigated at a constant hydraulic retention time of 8 h and 35 °C. The results showed that the UMSR could treat the wastewater with a better synchronous removal of COD, NH4+-N and TN. The microaerobic UMSR allowed nitrifiers, and heterotrophic and autotrophic denitrifiers to thrive in the flocs, revealing a multiple nitrogen removal mechanism in the reactor. Both the nitrifiers and denitrifiers would be restricted by an influent COD/TN ratio more than 0.82, resulting in a decrease of TN removal in the UMSR. To get a TN removal over 80\% with a TN load removal above 0.86 kg/(m3·d) in the UMSR, the influent COD/TN ratio should be less than 0.70.",

keywords = "Biological mechanism, COD/TN ratio, Microaerobic treatment, Nitrogen removal, Piggery wastewater",

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

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

year = "2016",

month = jun,

day = "1",

doi = "10.1016/j.biortech.2016.03.008",

language = "英语",

volume = "209",

pages = "360--368",

journal = "Bioresource Technology",

issn = "0960-8524",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - The effect and biological mechanism of COD/TN ratio on nitrogen removal in a novel upflow microaerobic sludge reactor treating manure-free piggery wastewater

AU - Li, Jianzheng

AU - Meng, Jia

AU - Li, Jiuling

AU - Wang, Cheng

AU - Deng, Kaiwen

AU - Sun, Kai

AU - Buelna, Gerardo

PY - 2016/6/1

Y1 - 2016/6/1

N2 - A novel upflow microaerobic sludge reactor (UMSR) was constructed to treat manure-free piggery wastewater with high NH4+-N concentration and low COD/TN ratio, and the effect and biological mechanism of COD/TN ratio on nitrogen removal were investigated at a constant hydraulic retention time of 8 h and 35 °C. The results showed that the UMSR could treat the wastewater with a better synchronous removal of COD, NH4+-N and TN. The microaerobic UMSR allowed nitrifiers, and heterotrophic and autotrophic denitrifiers to thrive in the flocs, revealing a multiple nitrogen removal mechanism in the reactor. Both the nitrifiers and denitrifiers would be restricted by an influent COD/TN ratio more than 0.82, resulting in a decrease of TN removal in the UMSR. To get a TN removal over 80% with a TN load removal above 0.86 kg/(m3·d) in the UMSR, the influent COD/TN ratio should be less than 0.70.

AB - A novel upflow microaerobic sludge reactor (UMSR) was constructed to treat manure-free piggery wastewater with high NH4+-N concentration and low COD/TN ratio, and the effect and biological mechanism of COD/TN ratio on nitrogen removal were investigated at a constant hydraulic retention time of 8 h and 35 °C. The results showed that the UMSR could treat the wastewater with a better synchronous removal of COD, NH4+-N and TN. The microaerobic UMSR allowed nitrifiers, and heterotrophic and autotrophic denitrifiers to thrive in the flocs, revealing a multiple nitrogen removal mechanism in the reactor. Both the nitrifiers and denitrifiers would be restricted by an influent COD/TN ratio more than 0.82, resulting in a decrease of TN removal in the UMSR. To get a TN removal over 80% with a TN load removal above 0.86 kg/(m3·d) in the UMSR, the influent COD/TN ratio should be less than 0.70.

KW - Biological mechanism

KW - COD/TN ratio

KW - Microaerobic treatment

KW - Nitrogen removal

KW - Piggery wastewater

UR - https://www.scopus.com/pages/publications/84959859754

U2 - 10.1016/j.biortech.2016.03.008

DO - 10.1016/j.biortech.2016.03.008

M3 - 文献综述

C2 - 26972024

AN - SCOPUS:84959859754

SN - 0960-8524

VL - 209

SP - 360

EP - 368

JO - Bioresource Technology

JF - Bioresource Technology

ER -

The effect and biological mechanism of COD/TN ratio on nitrogen removal in a novel upflow microaerobic sludge reactor treating manure-free piggery wastewater

Abstract

UN SDGs

Keywords

Access to Document

Other files and links

Fingerprint

Cite this