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学者姓名：杨庆
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Abstract ：
The discharge of nitrogen-containing gaseous pollutants from wastewater treatment plants (WWTP) has caused a certain threat to the surrounding environment and human health, which has attracted wide attention in recent years. This study investigated the release characteristics of nitrogen-containing pollutants at different treatment stages in WWTP with sequencing batch reactor (SBR) process, including nitrogen-containing odorous gases (NH3 and dimethylamine) and nitrogen-containing greenhouse gases (N2O), all of which achieved the highest release in the aeration stage, with emissions of 35.2, 12.5 mg/(m2 & sdot;d) and 229.7 mg/L, respectively. Besides, the emission factors of NH3 and dimethylamine were calculated for 0.0091 and 0.0026 g/m3, and the carbon emission of N2O was estimated for 158.4 kg of CO2 per day. Furthermore, the pilot experiment of SBR showed that the odorous gas decreased first and then increased with the increase of aeration intensity and sludge concentration, and increased with the increase of influent chemical oxygen demand (COD) concentration. This study provides theoretical and data support for the emission reduction of nitrogen-containing pollutants in SBR process WWTP.
Keyword ：
Wastewater treatment plants Wastewater treatment plants Emission reduction Emission reduction Nitrogen-containing odorous gases Nitrogen-containing odorous gases Emission factors Emission factors Nitrogen-containing greenhouse gases Nitrogen-containing greenhouse gases
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| GB/T 7714 | Ma, Linlin , Dong, Yufan , Du, Xue et al. Releasing characteristics and influencing factors analysis of nitrogen-containing gaseous pollutants in wastewater treatment plants with sequencing batch reactor process [J]. | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2024 , 12 (6) . |
| MLA | Ma, Linlin et al. "Releasing characteristics and influencing factors analysis of nitrogen-containing gaseous pollutants in wastewater treatment plants with sequencing batch reactor process" . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 12 . 6 (2024) . |
| APA | Ma, Linlin , Dong, Yufan , Du, Xue , Yang, Qing , Zou, Kehua . Releasing characteristics and influencing factors analysis of nitrogen-containing gaseous pollutants in wastewater treatment plants with sequencing batch reactor process . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2024 , 12 (6) . |
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Abstract ：
The odor emission from wastewater treatment plants (WWTPs) has sparked widespread concern, with H2S emerging as one of the most worrisome odors. End-of-pipe treatment has been the predominant method for addressing H2S in recent decades. It is plagued by complexities in operation and high costs. Technologies for insitu H2S control have garnered increasing attention due to their high economic efficiency and low energy consumption. However, technologies for in-situ H2S control in WWTPs still need to be further systematically summarized and categorized while technologies for in-situ H2S control for overall WWTPs are still lacking. This paper provides a retrospective analysis of the principles, drawbacks, and limitations of traditional technologies for insitu H2S control while highlighting several promising and advanced technologies. Characteristic analyses of these technologies are conducted. The shortcomings they must overcome and the primary challenges they face in the implementation of WWTPs are identified. Finally, the paper forecasts the future research directions and proposes strategies to tackle the associated challenges of technologies for in-situ H2S control. We emphasize the necessity of prioritizing the overall management of WWTPs, with a primary focus on process reduction-oriented operational optimization measures, advocating for the practical adoption of technologies for in-situ H2S control, synergistic integration of multiple treatment modalities, and utilizing mathematical methods such as machine learning to optimize design parameters and solutions.
Keyword ：
Wastewater treatment plants Wastewater treatment plants Integration Integration In -situ removal In -situ removal Hydrogen sulfide Hydrogen sulfide Odor control Odor control
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| GB/T 7714 | Shi, Lei , Yang, Qing , Xu, ZongZe et al. Technologies for in-situ H2S control in wastewater treatment plants: A review [J]. | JOURNAL OF WATER PROCESS ENGINEERING , 2024 , 65 . |
| MLA | Shi, Lei et al. "Technologies for in-situ H2S control in wastewater treatment plants: A review" . | JOURNAL OF WATER PROCESS ENGINEERING 65 (2024) . |
| APA | Shi, Lei , Yang, Qing , Xu, ZongZe , Yang, Chen . Technologies for in-situ H2S control in wastewater treatment plants: A review . | JOURNAL OF WATER PROCESS ENGINEERING , 2024 , 65 . |
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Abstract ：
Unpleasant odorous emitted from wastewater treatment plants (WWTPs) have been of great concern for many years, especially among local communities with high population density. Knowledge about characteristics of odorous gas release from WWTP can assist in developing gas pollution reduction technologies. This study investigated the emission and variation of NH3 and organic amines (CH3NH2, C2H6NH, and C3H9N) at the waterair interface and concentrations of ambient air exposure from different treatment units in a wastewater treatment plant in North China, which uses the anaerobic/oxic (A/O) treatment process. Results demonstrated that NH3 and C2H6NH emission fluxes had followed a descending order of aeration treatment units > non aeration treatment units. NH3 and C2H6NH achieved the highest release concentration throughout the whole wastewater treatment process, where 0.0023 g of NH3 and 0.0018 g of C2H6NH were emitted during the treatment of 1 m3 wastewater, while CH3NH2 and C3H9N had never been detected. The emission of NH3 and C2H6NH from biological aeration tanks account for 98 % and 95 % of the total discharge of wastewater treatment plant, respectively. The odor pollution of NH3 and C2H6NH in the ambient air of different treatment units of WWTP was the most serious in summer. At the sensory level, NH3 dominated the malodorous effect and its exposure concentration posed a certain non carcinogenic risk to workers in wastewater treatment plant.
Keyword ：
Organic amine Organic amine Ammonia Ammonia Risk assessment Risk assessment Wastewater treatment plants Wastewater treatment plants Sensory evaluation Sensory evaluation
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| GB/T 7714 | Dong, Yufan , Ma, Linlin , Peng, Yi et al. Nitrogen-containing malodorous gas pollutants emission characteristics and health risk assessment from an A/O wastewater treatment plant [J]. | JOURNAL OF WATER PROCESS ENGINEERING , 2023 , 54 . |
| MLA | Dong, Yufan et al. "Nitrogen-containing malodorous gas pollutants emission characteristics and health risk assessment from an A/O wastewater treatment plant" . | JOURNAL OF WATER PROCESS ENGINEERING 54 (2023) . |
| APA | Dong, Yufan , Ma, Linlin , Peng, Yi , Hu, Zhanhong , Xu, Zongze , Jiang, Xiancong et al. Nitrogen-containing malodorous gas pollutants emission characteristics and health risk assessment from an A/O wastewater treatment plant . | JOURNAL OF WATER PROCESS ENGINEERING , 2023 , 54 . |
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Abstract ：
Long-term monitoring of volatile sulfur compounds (VSCs) released at the water-air interface from different treatment units of an anaerobic/oxic (A/O) wastewater treatment plant (WWTP) was carried out to assess the temporal and spatial emission characteristics of VSCs, to explore relationships between wastewater quality and VSC release. The VSC from non-aerated and aerated units were collected using dynamic and static chambers, respectively, and determined using gas chromatography. The VSC emission fluxes diminished in the order of primary sedimentation tank (PST) > anaerobic areas (ANA) > oxic section 1 (OX1). VSCs were not detected in the oxic section 2 (OX2), the oxic areas section 3 (OX3), and the final setting basin (FSB). Release capacities of VSCs descended in the order of summer > fall > spring > winter, with July, August, and September being the months with the highest VSC release capacities. VSC emission fluxes correlated well with wastewater temperatures, sulfate concentrations, and COD. VSC emission flux empirical equations based on wastewater temperature, sulfate concentrations, and COD were established. Based on the established VSC emission empirical equation, a control strategy to reduce the operating costs of deodorization facilities was proposed. This strategy is economically efficient and reduces the consumption of electrical energy.
Keyword ：
Empirical emission model Empirical emission model Volatile sulfur compounds Volatile sulfur compounds Wastewater treatment plants Wastewater treatment plants Economic efficiency Economic efficiency Emission flux Emission flux
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| GB/T 7714 | Xu, Zongze , Yang, Qing , Jiang, Xiancong et al. Multi-dimension analysis of volatile sulfur compound emissions from an urban wastewater treatment plant [J]. | JOURNAL OF ENVIRONMENTAL MANAGEMENT , 2023 , 345 . |
| MLA | Xu, Zongze et al. "Multi-dimension analysis of volatile sulfur compound emissions from an urban wastewater treatment plant" . | JOURNAL OF ENVIRONMENTAL MANAGEMENT 345 (2023) . |
| APA | Xu, Zongze , Yang, Qing , Jiang, Xiancong , Dong, Yufan , Hu, Zhanhong , Shi, Lei et al. Multi-dimension analysis of volatile sulfur compound emissions from an urban wastewater treatment plant . | JOURNAL OF ENVIRONMENTAL MANAGEMENT , 2023 , 345 . |
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Abstract ：
Anaerobic methanogenesis from domestic wastewater is one of the promising way to wastewater resource utilization. In this study, the effects of nanoscale zero-valent iron (nZVI) and nano ferroferric oxide (Fe3O4 NPs) on organic matter removal, methanogenesis, microbial communities, and metabolic pathways in the anaerobic biofilm system for treating domestic wastewater at ambient temperature were studied. The results showed nZVI and Fe3O4 NPs not only promoted the hydrolytic fermentation process of the anaerobic biofilm system, but also facilitated the removal of refractory organic matter. Especially, Fe3O4 NPs improved the methanogenic efficiency, shortened the lag time, and entered the rapid methanogenic stage rapidly. Fe3O4 NPs formed direct interspecies electron transfer (DIET) and symbiotic relationship between the acetic acid oxidizing bacteria and the methanogenic bacteria. Furthermore, Fe3O4 NPs promoted the biosynthesis of F420. In the Fe3O4 NPs system, the CO2-reduced methanogenesis, as the main methanogenic pathway, was enhanced. © 2022
Keyword ：
Anaerobic methanogenesis; DIET; Domestic wastewater; Fe3O4 NPs; Metabolic pathways Anaerobic methanogenesis; DIET; Domestic wastewater; Fe3O4 NPs; Metabolic pathways
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| GB/T 7714 | Liu, X. , Zhang, S. , Cheng, R. et al. Effects of nZVI and Fe3O4 NPs on anaerobic methanogenesis, microbial communities and metabolic pathways for treating domestic wastewater at ambient temperature [J]. | Journal of Water Process Engineering , 2022 , 48 . |
| MLA | Liu, X. et al. "Effects of nZVI and Fe3O4 NPs on anaerobic methanogenesis, microbial communities and metabolic pathways for treating domestic wastewater at ambient temperature" . | Journal of Water Process Engineering 48 (2022) . |
| APA | Liu, X. , Zhang, S. , Cheng, R. , Liu, R. , Liu, Z. , Yang, Q. . Effects of nZVI and Fe3O4 NPs on anaerobic methanogenesis, microbial communities and metabolic pathways for treating domestic wastewater at ambient temperature . | Journal of Water Process Engineering , 2022 , 48 . |
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Abstract ：
Dissolved oxygen (DO) concentration is regarded as one of the crucial factors to influence partial nitrification process. However, achieving and keeping stable partial nitrification under different DO concentrations were widely reported. The mechanism of DO concentration influencing partial nitrification is still unclear. Therefore, in this study two same sequencing batch reactors (SBRs) cultivated same seeding sludge were built up with real-time control strategy. Different DO concentrations were controlled in SBRs to explore the effect of DO concentration on the long-term stability of partial nitrification process at room temperature. It was discovered that ammonium oxidation rate (AOR) was inhibited when DO concentration decreased from 2.5 to 0.5 mg/L. The abundance of Nitrospira increased from 10(11.5) to 10(13.7) copies/g DNA, and its relative percentage increased from 0.056% to 3.2% during 190 operational cycles, causing partial nitrification gradually turning into complete nitrification process. However, when DO was 2.5 mg/L the abundance of Nitrospira was stable and AOB was always kept at 10(10.7) copies/g DNA. High AOR was maintained, and stable partial nitrification process was kept. Ammonia oxidizing bacteria (AOB) activity was significantly higher than nitrite oxidizing bacteria (NOB) activity at DO of 2.5 mg/L, which was crucial to maintain excellent nitrite accumulation performance. (C) 2020 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
Keyword ：
Dissolved oxygen Dissolved oxygen Nitrogen removal Nitrogen removal Ammonium oxidation rate Ammonium oxidation rate Partial nitrification Partial nitrification Nitrospira Nitrospira
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| GB/T 7714 | Cui, Bin , Yang, Qing , Liu, Xiuhong et al. The effect of dissolved oxygen concentration on long-term stability of partial nitrification process [J]. | JOURNAL OF ENVIRONMENTAL SCIENCES , 2020 , 90 : 343-351 . |
| MLA | Cui, Bin et al. "The effect of dissolved oxygen concentration on long-term stability of partial nitrification process" . | JOURNAL OF ENVIRONMENTAL SCIENCES 90 (2020) : 343-351 . |
| APA | Cui, Bin , Yang, Qing , Liu, Xiuhong , Huang, Siting , Yang, Yubing , Liu, Zhibin . The effect of dissolved oxygen concentration on long-term stability of partial nitrification process . | JOURNAL OF ENVIRONMENTAL SCIENCES , 2020 , 90 , 343-351 . |
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Abstract ：
Recently, partial denitrification (PDN) - anaerobic ammonium oxidation (anammox) process has been widely studied in activated sludge for nitrate wastewater treatment. However, achieving PDN-Anammox in biofilter for domestic wastewater treatment was never reported. In this study, two lab-scale PDN biofilter and Anammox biofilter were built up to treat simulated domestic wastewater. The results showed that stable nitrogen removal performance was kept with averaged effluent nitrogen of 10.2 mg/L. Stable nitrite accumulation performance was achieved with low abundance of nitrite reductase gene, while influent composition influenced nitrogen transformation pathway in PDN biofilter. When treating domestic wastewater, nitrification and partial denitrification led to the higher nitrite accumulation ratio of 75.4%. The percentage contribution of anammox biofilter was 74.6% for nitrogen removal, and Candidatus Brocadia was dominant genus. After long-term operation, limited substrate concentration caused interspecific competition among various anammox bacteria, leading to an increasing proportion of Candidatus Brocadia fulgida. PDN-Anammox biofilter is a feasible process to advanced wastewater treatment, which could save aeration consumption and carbon source addition, and reduce sludge production.
Keyword ：
Partial denitrification Partial denitrification Functional gene Functional gene Microbial community structure Microbial community structure Anammox Anammox Nitrite accumulation Nitrite accumulation
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| GB/T 7714 | Cui, Bin , Yang, Qing , Liu, Xiuhong et al. Achieving partial denitrification-anammox in biofilter for advanced wastewater treatment [J]. | ENVIRONMENT INTERNATIONAL , 2020 , 138 . |
| MLA | Cui, Bin et al. "Achieving partial denitrification-anammox in biofilter for advanced wastewater treatment" . | ENVIRONMENT INTERNATIONAL 138 (2020) . |
| APA | Cui, Bin , Yang, Qing , Liu, Xiuhong , Wu, Wenjun , Liu, Zhibin , Gu, Pengchao . Achieving partial denitrification-anammox in biofilter for advanced wastewater treatment . | ENVIRONMENT INTERNATIONAL , 2020 , 138 . |
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Abstract ：
Biological aerated filter (BAF) is a widely applied biofilm process for wastewater treatment. However, characteristics of nitrous oxide (N2O) production in BAF are rarely reported. In this study, two tandem BAFs treating domestic wastewater were built up, and different gas-water ratios were controlled to explore N2O production pathway. Results showed that N2O production increased with increasing gas-water ratio in both BAFs; higher gas-water ratio promoted more N2O releasing from hydroxylamine oxidation process. To improve nitrogen removal performance and reduce N2O emission, the optimal gas-water ratios for BAF1 and BAF2 were 5:1 and 1.5:1, respectively. Most of N2O was produced from ammonia oxidizing bacteria (AOB) denitrification and hydroxylamine oxidation in BAF1, and heterotrophic denitrification contributed to relieve N2O emission. In BAF2, N2O was emitted from AOB denitrification and hydroxylamine oxidation by 87.8% and 12.2%, respectively. Heterotrophic denitrification is a N2O sink in BAF, causing BAF1 produced less N2O than BAF2 with the same gaswater ratio. Enhancing heterotrophic denitrification and anaerobic ammonium oxidation (Anammox) activity could reduce the release of N2O in BAFs. (c) 2020 Published by Elsevier B.V.
Keyword ：
Nitrous oxide emission Nitrous oxide emission Production pathway Production pathway Biological aerated filter Biological aerated filter Nitrogen removal Nitrogen removal Gas-water ratio Gas-water ratio
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| GB/T 7714 | Yang, Qing , Cui, Bin , Zhou, Yao et al. Impact of gas-water ratios on N2O emissions in biological aerated filters and analysis of N2O emissions pathways [J]. | SCIENCE OF THE TOTAL ENVIRONMENT , 2020 , 723 . |
| MLA | Yang, Qing et al. "Impact of gas-water ratios on N2O emissions in biological aerated filters and analysis of N2O emissions pathways" . | SCIENCE OF THE TOTAL ENVIRONMENT 723 (2020) . |
| APA | Yang, Qing , Cui, Bin , Zhou, Yao , Li, Jianmin , Liu, Zhibin , Liu, Xiuhong . Impact of gas-water ratios on N2O emissions in biological aerated filters and analysis of N2O emissions pathways . | SCIENCE OF THE TOTAL ENVIRONMENT , 2020 , 723 . |
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Abstract ：
To quickly realize the autotrophic denitrification of actual domestic sewage in the short term, the activated sludge from the actual sewage treatment plant containing anammox bacteria was used to study the removal effect of nitrogen in the process of hypoxia aeration for Fe2+/Fe3+ and Mn2+. The results showed that both Fe2+/Fe3+ and Mn2+ can increase the abundance of anammox bacteria (AnAOB) in activated sludge, but Fe2+/Fe3+ had a certain inhibitory effect on ammonia oxidizing bacteria (AOB); therefore, the total inorganic nitrogen removal rate was 25% in the presence of Fe2+/Fe3+ under short-term dosing, but the total inorganic nitrogen removal rate was 44% in the presence of Mn2+. Nitrogen balance analysis showed that nitrogen transformation was mainly denitrification under the condition of Fe2+/Fe3+; but was mainly anaerobic ammonium oxidation (anammox) process under the condition of Mn2+. Therefore, the anammox activity could be enhanced in traditional activated sludge by short-term addition of Mn2+, promoting the removal of nitrogen during the low-oxygen aeration, and facilitating the rapid achievement of integrated autotrophic nitrogen removal. © All Right Reserved.
Keyword ：
Activated sludge process Activated sludge process Metal ions Metal ions Sewage Sewage Oxygen Oxygen Sewage aeration Sewage aeration Ammonia Ammonia Wastewater treatment Wastewater treatment Nitrogen removal Nitrogen removal Sewage treatment plants Sewage treatment plants Bacteria Bacteria Denitrification Denitrification
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| GB/T 7714 | Li, Jianmin , Yang, Qing , Liu, Zhibin et al. Influences of Fe2+/Fe3+ and Mn2+ on total nitrogen removal and nitrogen transformations during low-oxygen aeration [J]. | CIESC Journal , 2019 , 70 (9) : 3503-3510 . |
| MLA | Li, Jianmin et al. "Influences of Fe2+/Fe3+ and Mn2+ on total nitrogen removal and nitrogen transformations during low-oxygen aeration" . | CIESC Journal 70 . 9 (2019) : 3503-3510 . |
| APA | Li, Jianmin , Yang, Qing , Liu, Zhibin , Liu, Runyu , Cui, Bin . Influences of Fe2+/Fe3+ and Mn2+ on total nitrogen removal and nitrogen transformations during low-oxygen aeration . | CIESC Journal , 2019 , 70 (9) , 3503-3510 . |
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Abstract ：
The rapid growth of nitrite-oxidizing bacteria (NOB) in reactor prevents the application of anaerobic ammonium oxidation (anammox) technology to main-stream wastewater treatment. How to eliminate NOB and reserve anaerobic ammonium oxidation bacteria (AnAOB) simultaneously becomes the biggest challenge. In this study two coupled biological aeration filters (BAFs) were built up to treat domestic sewage. In BAF1 nitrogen removal concentration was 21.4 mg/L via heterotrophic denitrification pathway. Backwash was conducted to BAF2 to improve nitrogen removal performance. After backwash Nitrospira proportion declined from 10.8% to 2.1%, while Candidatus Kuenenia percentage increased from 5.6% to 10.2%. Nitrogen removal concentration improved from 8.6 mg/L to 22.8 mg/L via anammox pathway in BAF2, and total nitrogen removal concentration reached to 44.2 mg/L in two coupled BAFs during aeration process. These findings could provide a new strategy for the application of anammox technology to main-stream wastewater treatment.
Keyword ：
Backwash Backwash Biofilm Biofilm Nitrogen removal Nitrogen removal Microbial community structure Microbial community structure Biological aeration filter Biological aeration filter
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| GB/T 7714 | Cui, Bin , Yang, Qing , Zhang, Yanping et al. Improving nitrogen removal in biological aeration filter for domestic sewage treatment via adjusting microbial community structure [J]. | BIORESOURCE TECHNOLOGY , 2019 , 293 . |
| MLA | Cui, Bin et al. "Improving nitrogen removal in biological aeration filter for domestic sewage treatment via adjusting microbial community structure" . | BIORESOURCE TECHNOLOGY 293 (2019) . |
| APA | Cui, Bin , Yang, Qing , Zhang, Yanping , Liu, Xiuhong , Wu, Wenjun , Li, Jianmin . Improving nitrogen removal in biological aeration filter for domestic sewage treatment via adjusting microbial community structure . | BIORESOURCE TECHNOLOGY , 2019 , 293 . |
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