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学者姓名：曾薇
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Abstract ：
Developing efficient technologies to recover carbon (C) and phosphorus (P) from waste activated sludge (WAS) is crucial for promoting low-carbon development and addressing P resource shortages. This study proposes a potassium ferrate (PF) pretreatment method to enhance the co-fermentation of WAS and corn straw (CS), facilitating the efficient and stable recovery of short-chain fatty acids (SCFAs) and vivianite, while exploring the underlying mechanisms and potential applications of this approach. PF pretreatment effectively promoted WAS hydrolysis and increased CS bioavailability. SCFAs yield in the co-fermentation group reached 6410.4 mg/L, representing a 79.6 % increase. Efficient SCFAs production was achieved under a SRT of 4-5 days. In the system, SCFAs-consuming bacteria were reduced and SCFAs-producing fermentative genera, such as Paraclostridium, Terrisporobacter and Mobilitalea, were enriched. Additionally, the presence of Fe promoted the enrichment of the Clostridium genus, which is capable of both fermentation and Fe reduction. PF pretreatment enhanced the release of organic matter, thereby shortening the fermentation time. P recovery was effectively achieved through chemical acidification and precipitation techniques. Under optimal recovery conditions (Fe/P = 1.5, pH = 7, 300 rpm), the P recovery efficiency reached 81.6 %, with vivianite accounting for 68.2 %-71.8 %. This method provides a theoretical foundation and technical support for the effective utilization of WAS.
Keyword ：
Waste activated sludge Waste activated sludge Vivianite Vivianite Short-chain fatty acids Short-chain fatty acids Anaerobic fermentation Anaerobic fermentation Potassium ferrate pretreatment Potassium ferrate pretreatment
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| GB/T 7714 | Yu, Xintian , Zeng, Wei , Zhang, Jiayu et al. Potassium ferrate pretreatment enhances short-chain fatty acid production and phosphorus recovery in co-fermentation system of waste activated sludge and corn stover [J]. | CHEMICAL ENGINEERING JOURNAL , 2025 , 511 . |
| MLA | Yu, Xintian et al. "Potassium ferrate pretreatment enhances short-chain fatty acid production and phosphorus recovery in co-fermentation system of waste activated sludge and corn stover" . | CHEMICAL ENGINEERING JOURNAL 511 (2025) . |
| APA | Yu, Xintian , Zeng, Wei , Zhang, Jiayu , Lu, Sijia , Peng, Yongzhen . Potassium ferrate pretreatment enhances short-chain fatty acid production and phosphorus recovery in co-fermentation system of waste activated sludge and corn stover . | CHEMICAL ENGINEERING JOURNAL , 2025 , 511 . |
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Abstract ：
Anaerobic ammonia oxidation coupled to Fe (III) reduction (Feammox) plays an important role in the natural nitrogen cycle. However, for its application in wastewater treatment process, the source of iron is a major limitation. In this study, Feammox process was successfully achieved without external iron addition using sponge iron biofilm. The products of Feammox process, nitrate and Fe (II), provided substrates for nitrate dependent ferrous oxidation (NDFO). Therefore, nitrogen removal and Fe (II)/Fe (III) cycle were achieved in reactor and nitrogen removal efficiency by Feammox and NDFO pathways was up to 58.4 %. The X-ray diffraction indicated the sludge contained magnetite and lepidocrocite, which provided Fe (III) for the occurrence of Feammox. Microorganisms related to Feammox process were dominated by Geothrix. It was found Feammox activity was similar at pH of 8 and 7, while inhibited at pH of 6, which was caused by the decrease of Feammox bacteria. And Feammox activity decreased with the decrease of temperature, in which the ammonia removal rate was 2 times faster at 30 degrees C than at 10 degrees C. Under micro-oxygen aeration, the ammonia removal rate improved and Feammox and NDFO processes still played roles in system, nevertheless, under high dissolved oxygen condition, Feammox bacteria-Geothrix and NDFO bacteria Thiobacillus would be gradually eliminated from the system.
Keyword ：
Microbial community Microbial community Influence factors Influence factors Nitrate dependent ferrous oxidation Nitrate dependent ferrous oxidation Fe (II)/Fe (III) cycle Fe (II)/Fe (III) cycle Feammox Feammox
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| GB/T 7714 | Li, Jianmin , Zeng, Wei , Zhan, Mengjia et al. Performances and mechanisms of anaerobic nitrogen removal through Fe (III)/Fe (II) cycle with sponge iron biofilm without external iron addition [J]. | JOURNAL OF WATER PROCESS ENGINEERING , 2024 , 66 . |
| MLA | Li, Jianmin et al. "Performances and mechanisms of anaerobic nitrogen removal through Fe (III)/Fe (II) cycle with sponge iron biofilm without external iron addition" . | JOURNAL OF WATER PROCESS ENGINEERING 66 (2024) . |
| APA | Li, Jianmin , Zeng, Wei , Zhan, Mengjia , Miao, Haohao , Hao, Xiaojing . Performances and mechanisms of anaerobic nitrogen removal through Fe (III)/Fe (II) cycle with sponge iron biofilm without external iron addition . | JOURNAL OF WATER PROCESS ENGINEERING , 2024 , 66 . |
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Abstract ：
An integrated process of sludge in-situ fermentation, biological phosphorus removal and endogenous denitrification (ISFPR-ED) was developed to treat low ratio of chemical oxygen demand to nitrogen (COD/N) wastewater and waste activated sludge (WAS) in a single reactor. Nutrient removal and WAS reduction were achieved due to Tetrasphaera-dominated sludge fermentation provided organic carbon in extending the anaerobic duration. The WAS reduction efficiency, effluent orthophosphate (PO43--P) and total inorganic nitrogen reached 28.1 %, less than 0.4 and 7.2 mg/L, respectively. While organic carbon was reduced by 67 %. Tetrasphaera, conventional polyphosphate accumulating organisms (PAOs) stored glycogen, amino acids, and PHA for nutrient removal. Excess energy from fermentation enhanced anaerobic PO43--P uptake by Tetrasphaera. Tetrasphaera was the dominant PO43--P removal and fermentation bacteria, working synergistically with conventional PAOs and fermenting microorganisms. This integrated process improves nutrient removal efficiency and reduces operating costs for carbon addition and WAS disposal in wastewater treatment.
Keyword ：
Tetrasphaera Tetrasphaera Sludge reduction Sludge reduction Biological nutrient removal Biological nutrient removal Waste activated sludge Waste activated sludge
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| GB/T 7714 | Liu, Hongjun , Zeng, Wei , Wu, Lei et al. Integrated process of Tetrasphaera-dominated-dominated in-situ waste activated sludge fermentation, biological phosphorus removal and endogenous denitrification in single reactor for treatment of wastewater with limited carbon sources [J]. | BIORESOURCE TECHNOLOGY , 2024 , 412 . |
| MLA | Liu, Hongjun et al. "Integrated process of Tetrasphaera-dominated-dominated in-situ waste activated sludge fermentation, biological phosphorus removal and endogenous denitrification in single reactor for treatment of wastewater with limited carbon sources" . | BIORESOURCE TECHNOLOGY 412 (2024) . |
| APA | Liu, Hongjun , Zeng, Wei , Wu, Lei , Meng, Qingan , Zhang, Jiayu , Peng, Yongzhen . Integrated process of Tetrasphaera-dominated-dominated in-situ waste activated sludge fermentation, biological phosphorus removal and endogenous denitrification in single reactor for treatment of wastewater with limited carbon sources . | BIORESOURCE TECHNOLOGY , 2024 , 412 . |
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Abstract ：
The recovery of vivianite through the anaerobic digestion of waste-activated sludge has attracted considerable attention due to its operational simplicity and the high economic value of vivianite. This study concentrated on the recovery of vivianite from anaerobic fermentation systems through a strategy combining sludge pre- fermentation with the waste agricultural and forestry biomass-derived biochar (ZBC). In-depth analyses of the structure and functionality of ZBC were conducted using techniques such as Fourier-transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), and Raman spectroscopy. The sediment produced after the experiment and the changes in microbial community composition were characterized. The results indicated that pre-fermentation promoted phosphorus release, enhancing the synthesis of vivianite while selectively enriching respiratory and fermentative Fe (III)-reducing microorganisms. When FeOOH was used as the Fe (III) source, ZBC, through its dual action of redox functional groups and graphitization structure, increased the Fe2+ production by 243.6 % in the system dominated by respiratory Fe (III)-reducing bacteria. The optimal dosage of ZBC for the simultaneous recovery of vivianite resources and methane energy was 2.5 g/L. The combined application of pre-fermentation and ZBC provides a novel approach for the efficient recycling of vivianite and offers new insights into the reuse of agroforestry waste biomass resources.
Keyword ：
Pre-fermentation Pre-fermentation Phosphate recovery Phosphate recovery Vivianite Vivianite Biochar Biochar Respiratory Fe (III) reduction Respiratory Fe (III) reduction
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| GB/T 7714 | Lu, Sijia , Zeng, Wei , Gong, Qingteng et al. Anaerobic recovery of vivianite from waste-activated sludge through combined sludge pre-fermentation and agroforestry biomass-based biochar [J]. | PROCESS SAFETY AND ENVIRONMENTAL PROTECTION , 2024 , 190 : 381-394 . |
| MLA | Lu, Sijia et al. "Anaerobic recovery of vivianite from waste-activated sludge through combined sludge pre-fermentation and agroforestry biomass-based biochar" . | PROCESS SAFETY AND ENVIRONMENTAL PROTECTION 190 (2024) : 381-394 . |
| APA | Lu, Sijia , Zeng, Wei , Gong, Qingteng , Zhang, Jiayu , Peng, Xiaojing , Yu, Xintian et al. Anaerobic recovery of vivianite from waste-activated sludge through combined sludge pre-fermentation and agroforestry biomass-based biochar . | PROCESS SAFETY AND ENVIRONMENTAL PROTECTION , 2024 , 190 , 381-394 . |
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Abstract ：
This study explored the impact of varying nitrate to sulfide (N/S) ratios on nitrogen removal efficiency (NRE) in the sulfide-driven autotrophic denitrification and anammox (SDAD-anammox) system. Optimal nitrogen removal was observed at N/S ratios between 1.5 and 2.0. Isotope tracing results showed that the contribution of anammox to nitrogen removal was enhanced with increasing N/S ratios, reaching up to 37 % at the N/S ratio of 2.5. Additionally, complex nitrogen pathways were identified, including dissimilatory nitrate reduction to ammonium (DNRA). Furthermore, isotope tracing was innovatively applied to investigate N2O emissions, demonstrating that higher N/S ratios significantly reduced N2O emissions, with the lowest emissions at N/S ratio of 2.5. Gene expression analysis indicated that nitrogen and sulfide transformation genes decreased with increasing N/S ratios, while anammox-related genes first increased and then decreased, reflecting the system's microbial dynamics. These findings offer insights into nitrogen transformation pathways and N2O production mechanisms in the SDAD-anammox process.
Keyword ：
Denitrification desulfurization system Denitrification desulfurization system Nitrous oxide Nitrous oxide Anammox Anammox Functional gene Functional gene Isotope effect Isotope effect
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| GB/T 7714 | Zhan, Mengjia , Zeng, Wei , Hao, Xiaojing et al. Isotope analysis of nitrogen removal pathways and N2O production potential in the SDAD-anammox system under different N/S ratios [J]. | WATER RESEARCH X , 2024 , 24 . |
| MLA | Zhan, Mengjia et al. "Isotope analysis of nitrogen removal pathways and N2O production potential in the SDAD-anammox system under different N/S ratios" . | WATER RESEARCH X 24 (2024) . |
| APA | Zhan, Mengjia , Zeng, Wei , Hao, Xiaojing , Miao, Haohao , Lu, Yao , Jiang, Wenzhuo et al. Isotope analysis of nitrogen removal pathways and N2O production potential in the SDAD-anammox system under different N/S ratios . | WATER RESEARCH X , 2024 , 24 . |
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Abstract ：
Sulfur-driven autotrophic denitrification coupled with anammox (SPDA) is a promising process for autotrophic nitrogen removal, but autotrophic microorganisms are challenging to retain in wastewater treatment units. In this study, a single-stage mixotrophic denitrification coupled with anammox (MDA) process was established in an up-flow anaerobic sludge bed reactor with Thiothrix-hydroxyapatite coupled particles. The advancement of the sludge granulation process effectively strengthened the resistance of the MDA system to environmental stresses, and the SPDA-dominated nitrogen removal process achieved a total nitrogen removal efficiency of 88.6 %, a nitrogen removal rate of 0.432 KgN/m3/d at temperatures as low as 12.8 degrees C and an organic loading rate of 0.63 KgCOD/m3/d. Interestingly, the ecological niche integration of sulfur oxidizing bacteria (SOB), anammox bacteria and heterotrophic denitrifying bacteria in the granular sludge was observed during long-term operation. The FISH-CLSM results revealed the spatial distribution of functional microorganisms in the granular sludge and the potential pollutant transformation mechanism. The aggressive growth of SOB dominated by Thiothrix constructed a biological wall at the periphery of the granules, which ensured their priority for nitrate acquisition, supplied nitrite to the internal anammox bacteria, and acted as an important barrier against the shock of organic loads. Overall, this study presents a novel granulation approach for the biological treatment of sulfur-containing wastewater, highlighting the efficacy of functional integration within Thiothrix-hydroxyapatite coupled particles as an effective strategy to resist environmental stress.
Keyword ：
Thiothrix -hydroxyapatite coupled particles Thiothrix -hydroxyapatite coupled particles Mixotrophic denitrification Mixotrophic denitrification Environmental stress Environmental stress Function integration Function integration Anammox Anammox
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| GB/T 7714 | Gong, Qingteng , Zeng, Wei , Meng, Qingan et al. Integration of mixotrophic denitrification and anammox in Thiothrix-hydroxyapatite coupled particles treating municipal wastewater against low temperature and organic load shocks [J]. | CHEMICAL ENGINEERING JOURNAL , 2024 , 497 . |
| MLA | Gong, Qingteng et al. "Integration of mixotrophic denitrification and anammox in Thiothrix-hydroxyapatite coupled particles treating municipal wastewater against low temperature and organic load shocks" . | CHEMICAL ENGINEERING JOURNAL 497 (2024) . |
| APA | Gong, Qingteng , Zeng, Wei , Meng, Qingan , Hao, Xiaojing , Lu, Sijia , Wang, Yifei et al. Integration of mixotrophic denitrification and anammox in Thiothrix-hydroxyapatite coupled particles treating municipal wastewater against low temperature and organic load shocks . | CHEMICAL ENGINEERING JOURNAL , 2024 , 497 . |
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Abstract ：
In addressing the issue of the unstable supply of electron acceptors (nitrite) during Anammox, researchers have often overlooked that the electron transfer process in anammox bacteria (AnAOB) is not restricted to the intracellular, extracellular electron transfer can also serve as an alternative pathway. This study utilized Fe3+ as an adjunctive electron acceptor, coupling Anammox with ferric iron reduction (Feammox) by introducing polymeric ferric sulfate (PFS) in the Anammox system. This approach achieved effective nitrogen removal even when nitrite was deficient. At a NO2--N to NH4+-N ratio of 0.5, the Feammox-Anammox combined system maintained stable nitrogen removal under the dual electron acceptor, with total nitrogen and NH4+-N removal efficiency of 85 % and 91 %, respectively. The contribution of Feammox and Anammox to NH4+-N removal was 45 % and 55 %, respectively. TEM-EDS confirmed the presence of iron elements across the periphery, periplasm, and cytoplasm of AnAOB, suggesting the involvement of PFS in the metabolic and electron transfer processes. Notably, the introduction of Fe3+ and the limitation of nitrite availability resulted in increased relative abundances of FeOB (Thermomonas) and FeRB (Ignavibacterium) to 30 % and 3.6 %, respectively, indicating that the electron transfer process with Fe3+ as the electron acceptor was continuously intensified, as well as a cycle of Fe3+ / Fe2+ was established. Due to unique nitrogen metabolism mode and high Fe3+ tolerance, the abundance of Candidatus_Brocadia was enriched up to 7.2 %, which alternately dominated the Anammox process with Candidatus_Kuenenia, providing favorable conditions for AnAOB to carry out the extracellular electron transfer process. These findings provide a novel strategy for improving the stability and efficiency of the Anammox process under deficient nitrite supply.
Keyword ：
Extracellular electron transfer Extracellular electron transfer Dual electron acceptor Dual electron acceptor Feammox Feammox Anammox Anammox Polymeric ferric sulfate Polymeric ferric sulfate
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| GB/T 7714 | Wang, Yifei , Zeng, Wei , Gong, Qingteng et al. Enhancing anaerobic ammonium oxidation via polymeric ferric sulfate (PFS)-Mediated dual-electron Acceptor: A solution to nitrite deficiency [J]. | CHEMICAL ENGINEERING JOURNAL , 2024 , 498 . |
| MLA | Wang, Yifei et al. "Enhancing anaerobic ammonium oxidation via polymeric ferric sulfate (PFS)-Mediated dual-electron Acceptor: A solution to nitrite deficiency" . | CHEMICAL ENGINEERING JOURNAL 498 (2024) . |
| APA | Wang, Yifei , Zeng, Wei , Gong, Qingteng , Zhan, Mengjia , Hao, Xiaojing , Peng, Yongzhen . Enhancing anaerobic ammonium oxidation via polymeric ferric sulfate (PFS)-Mediated dual-electron Acceptor: A solution to nitrite deficiency . | CHEMICAL ENGINEERING JOURNAL , 2024 , 498 . |
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Abstract ：
本发明公开了一种利用亚硝酸盐快速培养发酵型反硝化聚磷菌的方法。该方法以酪蛋白胨模拟生活污水/剩余污泥中的大分子有机物作为唯一碳源。首先在第一阶段，经过厌氧/好氧模式连续运行60天以上后出水磷酸盐浓度稳定达到0.5mg/L以下，指示发酵型聚磷菌富集完成。之后在第二阶段取第一阶段反应器中的污泥接种到新的序批式反应器中，增加缺氧段并投加亚硝酸盐氮浓度为10～20mg/L以构建反硝化除磷系统，经过10～15d运行后出水磷酸盐和亚硝酸盐浓度分别小于0.5mg/L和1.0mg/L并能稳定维持，指示发酵型反硝化聚磷菌驯化完成。本发明利用酪蛋白胨作为碳源，通过投加亚硝酸盐快速实现了发酵型反硝化聚磷菌的培养，稳定实现低C/N生活污水高效同步脱氮除磷。
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| GB/T 7714 | 曾薇 , 张佳玉 , 孟庆安 et al. 一种利用亚硝酸盐快速培养发酵型反硝化聚磷菌的方法 : CN202310882246.5[P]. | 2023-07-18 . |
| MLA | 曾薇 et al. "一种利用亚硝酸盐快速培养发酵型反硝化聚磷菌的方法" : CN202310882246.5. | 2023-07-18 . |
| APA | 曾薇 , 张佳玉 , 孟庆安 , 刘宏军 . 一种利用亚硝酸盐快速培养发酵型反硝化聚磷菌的方法 : CN202310882246.5. | 2023-07-18 . |
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Abstract ：
一种基于Fe2+和Fe3+循环驱动的污水生物脱氮方法，属于污水生物处理领域。本发明以城市污水处理厂二沉池活性污泥为种泥成功富集了厌氧铁氨氧化和硝酸盐依赖型Fe2+氧化污泥，实现了二者耦合一体化脱氮。仅在反应器运行第一天投加1g/L Fe2O3，通过Fe2+和Fe3+循环实现了长期稳定高效脱氮，氨氮和总氮去除率最高达100％和92.45％。NH4+‑N在厌氧铁氨氧化作用下生成N2和NO3‑‑N，Fe3+被还原为Fe2+。生成的Fe2+通过两种途径氧化为Fe3+，一种途径是微生物介导的硝酸盐依赖型Fe2+氧化，另一种途径是被进水溶解氧化学氧化为Fe3+。本发明无需去氧、无需曝气和外加有机物，且利用厌氧铁氨氧化和硝酸盐依赖型Fe2+氧化分别消耗H+和产生H+的特性，使出水pH值稳定在7‑8，实现高效稳定脱氮。
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| GB/T 7714 | 曾薇 , 郝小静 , 李健敏 et al. 一种基于Fe2+和Fe3+循环驱动的污水生物脱氮方法 : CN202310650342.7[P]. | 2023-06-03 . |
| MLA | 曾薇 et al. "一种基于Fe2+和Fe3+循环驱动的污水生物脱氮方法" : CN202310650342.7. | 2023-06-03 . |
| APA | 曾薇 , 郝小静 , 李健敏 , 詹孟佳 , 苗豪豪 , 宫庆腾 . 一种基于Fe2+和Fe3+循环驱动的污水生物脱氮方法 : CN202310650342.7. | 2023-06-03 . |
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Abstract ：
一种生物正交氨基酸标记染色法联合荧光原位杂交检测活性污泥系统中活性聚磷菌的方法，属于污水生物处理技术领域。本发明使用L‑高炔丙基甘氨酸培养活性污泥中微生物，并通过生物正交氨基酸标记染色法对利用该氨基酸合成蛋白质的微生物进行荧光染色；采用荧光原位杂交技术使探针PAO846、PAO651、PAO462与荧光染色后的样品中聚磷菌目的基因进行杂交；利用流式细胞仪检测被荧光标记的细菌，通过圈门处理识别出活性聚磷菌区域，进而计算和分析活性聚磷菌占全菌的比例。本发明提供了一种经济、简便、可靠的污水处理系统活性污泥中活性聚磷菌的定量方法，为实际污水处理厂调控生物除磷条件提供了理论依据。
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| GB/T 7714 | 曾薇 , 孟庆安 , 刘宏军 et al. 一种生物正交氨基酸标记染色法联合荧光原位杂交技术检测活性污泥系统中活性聚磷菌的方法 : CN202310164818.6[P]. | 2023-02-26 . |
| MLA | 曾薇 et al. "一种生物正交氨基酸标记染色法联合荧光原位杂交技术检测活性污泥系统中活性聚磷菌的方法" : CN202310164818.6. | 2023-02-26 . |
| APA | 曾薇 , 孟庆安 , 刘宏军 , 彭永臻 . 一种生物正交氨基酸标记染色法联合荧光原位杂交技术检测活性污泥系统中活性聚磷菌的方法 : CN202310164818.6. | 2023-02-26 . |
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