Performance and microbial communities of denitrification using construction waste as filler for nitrate removal

被引：5

作者：

Bao, Lijing ^{[1
]}

Bao, Yinzhou ^{[1
]}

Chen, Zhiwen ^{[3
]}

Chen, Donghui ^{[1
]}

Peng, Zhou ^{[1
]}

Jiang, Lijun ^{[4
]}

Zhu, Yanbin ^{[1
]}

Huang, Manhong ^{[1
,2
]}

机构：

[1] Donghua Univ, Coll Environm Sci & Engn, Shanghai 201620, Peoples R China

[2] Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China

[3] Shanghai Urban Construct Vocat Coll, Sch Artificial Intelligence Applicat, Shanghai 201620, Peoples R China

[4] Shanghai Huanyun Environm Protect Technol Co Ltd, Shanghai 201620, Peoples R China

来源：

BIOCHEMICAL ENGINEERING JOURNAL | 2023年 / 200卷

关键词：

Denitrification filter; Construction waste; EPS; Filler; Resource utilization; EXTRACELLULAR POLYMERIC SUBSTANCES; SPECTROSCOPIC CHARACTERIZATION; AUTOTROPHIC DENITRIFICATION; WATER; SYSTEM; SLUDGE; NITRIFICATION; NANOPARTICLES; BIOFILM; PH;

D O I：

10.1016/j.bej.2023.109071

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

The increasing amount of construction waste generated by the construction industry is causing serious pollution to the environment. In our research, the feasibility of construction waste as filler for denitrification was inves-tigated. The physical and chemical properties of ceramic pellet and construction waste were compared and analyzed using scanning electron microscopy and Fourier transform infrared spectroscopy characterization. In addition, the ability of construction waste to treat high concentrations of nitrogenous wastewater was investi-gated and the structure of the extracellular polymer and microbial community was analyzed. The results showed that the removal rates of NO3--N and COD of construction waste were stable at 98% and 60%, and the biofilm in the construction waste reactor is more hydrophobic and denitrification-related microorganisms are more ad-vantageous. Experimental results demonstrate that construction waste was feasible as a filler for denitrification filters, and this study also achieve the purpose of treating waste with waste.

引用

页数：12

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