Influence of fermentation liquid of food-waste on nitrification based on KLa and OUR in SBR

Zhe Cheng; Xiaochang Wang; Yongmei Zhang; Yuyou Li

Influence of fermentation liquid of food-waste on nitrification based on K_La and OUR in SBR

Zhe Cheng, Xiaochang Wang, Yongmei Zhang, Yuyou Li

ENG - Civil and Environmental Engineering

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

Abstract

The influence of fermentation liquid of food-waste to NH₄⁺-N reduction rate of SBR was investigated by comparison with sodium acetate, and batch experiments were carried out to find the changes of K_La and OUR under different carbon source dosages. It was found that NH₄⁺-N concentration rose to 0.9 mg/L slightly when food-waste was added, and sodium acetate had no significant impact on NH₄⁺-N remove rate; saturated DO and K_La declined with the increase of food-waste and acetate dosing quantity, food-waste had a less influence on oxygen transfer ability than acetate. DO could be maintained at 6 mg/L which met the demand of nitrification when food-waste concentration was 300 mg/L COD. OUR of food-waste was 25.1% smaller than acetate,while 52.3% smaller at the AOB oxygen uptake phase. It indicated that the addition of food-waste affected the activity of nitrobacteria especially AOB.

Original language	English
Pages (from-to)	1259-1263
Number of pages	5
Journal	Chinese Journal of Environmental Engineering
Volume	9
Issue number	3
Publication status	Published - 2015 Mar 5

Keywords

Acetate
Food-waste
K
Nitrification
OUR

ASJC Scopus subject areas

Environmental Engineering
Environmental Chemistry
Water Science and Technology
Waste Management and Disposal
Pollution

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title = "Influence of fermentation liquid of food-waste on nitrification based on KLa and OUR in SBR",

abstract = "The influence of fermentation liquid of food-waste to NH4+-N reduction rate of SBR was investigated by comparison with sodium acetate, and batch experiments were carried out to find the changes of KLa and OUR under different carbon source dosages. It was found that NH4+-N concentration rose to 0.9 mg/L slightly when food-waste was added, and sodium acetate had no significant impact on NH4+-N remove rate; saturated DO and KLa declined with the increase of food-waste and acetate dosing quantity, food-waste had a less influence on oxygen transfer ability than acetate. DO could be maintained at 6 mg/L which met the demand of nitrification when food-waste concentration was 300 mg/L COD. OUR of food-waste was 25.1% smaller than acetate,while 52.3% smaller at the AOB oxygen uptake phase. It indicated that the addition of food-waste affected the activity of nitrobacteria especially AOB.",

keywords = "Acetate, Food-waste, K, Nitrification, OUR",

author = "Zhe Cheng and Xiaochang Wang and Yongmei Zhang and Yuyou Li",

year = "2015",

month = mar,

day = "5",

language = "English",

volume = "9",

pages = "1259--1263",

journal = "Chinese Journal of Environmental Engineering",

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publisher = "Huan jing gong cheng xue bao",

number = "3",

}

TY - JOUR

T1 - Influence of fermentation liquid of food-waste on nitrification based on KLa and OUR in SBR

AU - Cheng, Zhe

AU - Wang, Xiaochang

AU - Zhang, Yongmei

AU - Li, Yuyou

PY - 2015/3/5

Y1 - 2015/3/5

N2 - The influence of fermentation liquid of food-waste to NH4+-N reduction rate of SBR was investigated by comparison with sodium acetate, and batch experiments were carried out to find the changes of KLa and OUR under different carbon source dosages. It was found that NH4+-N concentration rose to 0.9 mg/L slightly when food-waste was added, and sodium acetate had no significant impact on NH4+-N remove rate; saturated DO and KLa declined with the increase of food-waste and acetate dosing quantity, food-waste had a less influence on oxygen transfer ability than acetate. DO could be maintained at 6 mg/L which met the demand of nitrification when food-waste concentration was 300 mg/L COD. OUR of food-waste was 25.1% smaller than acetate,while 52.3% smaller at the AOB oxygen uptake phase. It indicated that the addition of food-waste affected the activity of nitrobacteria especially AOB.

AB - The influence of fermentation liquid of food-waste to NH4+-N reduction rate of SBR was investigated by comparison with sodium acetate, and batch experiments were carried out to find the changes of KLa and OUR under different carbon source dosages. It was found that NH4+-N concentration rose to 0.9 mg/L slightly when food-waste was added, and sodium acetate had no significant impact on NH4+-N remove rate; saturated DO and KLa declined with the increase of food-waste and acetate dosing quantity, food-waste had a less influence on oxygen transfer ability than acetate. DO could be maintained at 6 mg/L which met the demand of nitrification when food-waste concentration was 300 mg/L COD. OUR of food-waste was 25.1% smaller than acetate,while 52.3% smaller at the AOB oxygen uptake phase. It indicated that the addition of food-waste affected the activity of nitrobacteria especially AOB.

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KW - Food-waste

KW - K

KW - Nitrification

KW - OUR

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M3 - Article

AN - SCOPUS:84925644963

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JO - Chinese Journal of Environmental Engineering

JF - Chinese Journal of Environmental Engineering

SN - 1673-9108

IS - 3

ER -