Study on simultaneous methanogenesis and denitrification in UASB reactor

Shi Tao Xie; Chuan Lei Zhang; Nan Nan Sun; She Min Zhu; Shu Bao Shen; Ying Wen Chen

Study on simultaneous methanogenesis and denitrification in UASB reactor

Shi Tao Xie, Chuan Lei Zhang, Nan Nan Sun, She Min Zhu, Shu Bao Shen, Ying Wen Chen

Nanjing Tech University

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

Abstract

A lab-scale UASB reactor is employed to carry out the methanogenesis and denitrification of sewage simulaneously. The rule of start-up and running of the reactor and the effect of toxicity action of methanogens with the addition of NO₃^--N are investigated. The utilization of carbon source by denitrifying bacteria is also studied. The removal efficiency of COD and NO₃^--N reaches 87% and 99%, respectively, under the following conditions: 20-25℃ of the temperature, 300 mg/L and 50 mg/L of the concentration of COD and NO₃^--N, respectively, 5 hours of the HRT, 1.92 kg(COD)/m³·d and 0.42 kg(NO₃^--N)/m³·d of the OLR and the nitrogen loads, respectively. The results provide the possibility to establish simultaneous methanogenesis and denitrification in UASB reactor to treat sewage wastewater. In this case methanogenesis is unaffected by denitrification and methane formation takes place during the whole time.

Original language	English
Pages (from-to)	110-113 and 115
Journal	Xiandai Huagong/Modern Chemical Industry
Volume	34
Issue number	9
State	Published - 20 Sep 2014

Keywords

Denitrification
Granular sludge
Methanogenesis
UASB

Cite this

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title = "Study on simultaneous methanogenesis and denitrification in UASB reactor",

abstract = "A lab-scale UASB reactor is employed to carry out the methanogenesis and denitrification of sewage simulaneously. The rule of start-up and running of the reactor and the effect of toxicity action of methanogens with the addition of NO3--N are investigated. The utilization of carbon source by denitrifying bacteria is also studied. The removal efficiency of COD and NO3--N reaches 87% and 99%, respectively, under the following conditions: 20-25℃ of the temperature, 300 mg/L and 50 mg/L of the concentration of COD and NO3--N, respectively, 5 hours of the HRT, 1.92 kg(COD)/m3·d and 0.42 kg(NO3--N)/m3·d of the OLR and the nitrogen loads, respectively. The results provide the possibility to establish simultaneous methanogenesis and denitrification in UASB reactor to treat sewage wastewater. In this case methanogenesis is unaffected by denitrification and methane formation takes place during the whole time.",

keywords = "Denitrification, Granular sludge, Methanogenesis, UASB",

author = "Xie, {Shi Tao} and Zhang, {Chuan Lei} and Sun, {Nan Nan} and Zhu, {She Min} and Shen, {Shu Bao} and Chen, {Ying Wen}",

year = "2014",

month = sep,

day = "20",

language = "英语",

volume = "34",

pages = "110--113 and 115",

journal = "Xiandai Huagong/Modern Chemical Industry",

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publisher = "China National Chemical Information Center",

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TY - JOUR

T1 - Study on simultaneous methanogenesis and denitrification in UASB reactor

AU - Xie, Shi Tao

AU - Zhang, Chuan Lei

AU - Sun, Nan Nan

AU - Zhu, She Min

AU - Shen, Shu Bao

AU - Chen, Ying Wen

PY - 2014/9/20

Y1 - 2014/9/20

N2 - A lab-scale UASB reactor is employed to carry out the methanogenesis and denitrification of sewage simulaneously. The rule of start-up and running of the reactor and the effect of toxicity action of methanogens with the addition of NO3--N are investigated. The utilization of carbon source by denitrifying bacteria is also studied. The removal efficiency of COD and NO3--N reaches 87% and 99%, respectively, under the following conditions: 20-25℃ of the temperature, 300 mg/L and 50 mg/L of the concentration of COD and NO3--N, respectively, 5 hours of the HRT, 1.92 kg(COD)/m3·d and 0.42 kg(NO3--N)/m3·d of the OLR and the nitrogen loads, respectively. The results provide the possibility to establish simultaneous methanogenesis and denitrification in UASB reactor to treat sewage wastewater. In this case methanogenesis is unaffected by denitrification and methane formation takes place during the whole time.

AB - A lab-scale UASB reactor is employed to carry out the methanogenesis and denitrification of sewage simulaneously. The rule of start-up and running of the reactor and the effect of toxicity action of methanogens with the addition of NO3--N are investigated. The utilization of carbon source by denitrifying bacteria is also studied. The removal efficiency of COD and NO3--N reaches 87% and 99%, respectively, under the following conditions: 20-25℃ of the temperature, 300 mg/L and 50 mg/L of the concentration of COD and NO3--N, respectively, 5 hours of the HRT, 1.92 kg(COD)/m3·d and 0.42 kg(NO3--N)/m3·d of the OLR and the nitrogen loads, respectively. The results provide the possibility to establish simultaneous methanogenesis and denitrification in UASB reactor to treat sewage wastewater. In this case methanogenesis is unaffected by denitrification and methane formation takes place during the whole time.

KW - Denitrification

KW - Granular sludge

KW - Methanogenesis

KW - UASB

UR - http://www.scopus.com/inward/record.url?scp=84907795846&partnerID=8YFLogxK

M3 - 文章

AN - SCOPUS:84907795846

SN - 0253-4320

VL - 34

SP - 110-113 and 115

JO - Xiandai Huagong/Modern Chemical Industry

JF - Xiandai Huagong/Modern Chemical Industry

IS - 9

ER -

Study on simultaneous methanogenesis and denitrification in UASB reactor

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