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学者姓名：杨宏
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Abstract ：
Long -term high efficiency and stable partial nitrification (PN) performance was achieved using gel-immobilized partial nitrifying bacteria. The PN characteristics of the filler under high and low ammonia nitrogen concentrations and low temperature were comprehensively studied and the rapid reactivation was achieved after reactor breakdown or long stagnation period. The results showed that the maximum ammonia oxidation rate was 66.8 mg center dot(L center dot h)-1 and the nitrite accumulation rate was above 95 % for the filler. Efficient and stable PN performance depends on the high abundance of ammonia-oxidizing bacteria (AOB) inside the filler and dynamically microbial community. In addition, the oxygen-limited zone and competition between the microorganisms inside the filler effectively inhibited the growth of nitrite oxidizing bacteria, and the sludge outside the filler assisted in this process, which supported the dominant position of AOB in fillers. This study provides a reliable technology for the practical application of the PN nitrogen removal process.
Keyword ：
Immobilized filler Immobilized filler Oxygen-limited zone Oxygen-limited zone Microbial community structure Microbial community structure Microbial community competition Microbial community competition Rapid reactivation Rapid reactivation
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| GB/T 7714 | Hu, Xin , Yang, Hong , Fang, Xiaoyue et al. High efficiency and stable partial nitration achieved via gel immobilization [J]. | BIORESOURCE TECHNOLOGY , 2024 , 394 . |
| MLA | Hu, Xin et al. "High efficiency and stable partial nitration achieved via gel immobilization" . | BIORESOURCE TECHNOLOGY 394 (2024) . |
| APA | Hu, Xin , Yang, Hong , Fang, Xiaoyue , Liu, Xuyan , Bai, Yongsheng , Su, Bojun et al. High efficiency and stable partial nitration achieved via gel immobilization . | BIORESOURCE TECHNOLOGY , 2024 , 394 . |
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Abstract ：
This study investigated the application of immobilized biological fillers in the hydrolytic acidification (HA) and denitrification (DN) of actual sulfide -containing tannery wastewater (TWW) through pilot -scale systematic experiments, which provided technical insights for the engineering application of immobilized bio-filler in practical TWW treatment. HA fillers and DN fillers could effectively realize the enrichment and maintenance of functional flora even under long-term inhibition of high sulfide concentration. The HA fillers demonstrated efficient conversion of organic nitrogen. At a hydraulic retention time (HRT) in the range of 3 - 6 h, the HA reactor achieved an average organic nitrogen conversion concentration of about 100 mg/L, accounting for 56.2 %-68.5 % of the total organic nitrogen in the TWW. Under this condition, the highest average organic nitrogen conversion and mean chemical oxygen demand (COD) degradation efficiencies were achieved, at 32.95 mgNH 4 + -N/(L & sdot; h) and 179.42 mgCOD/(L & sdot; h), respectively. Free ammonia (FA) may contribute to pH stabilization in the HA reactor. Denitrification fillers could utilize the endogenous organic matter in the actual TWW hydrolyzed acidified solution, and realize stable biological nitrogen removal effect with no additional carbon source. The denitrification rate reached 76.3 mg NO 3 - -N/(L & sdot; h) and the Delta C/ Delta N of the denitrification ranged from 3 to 4.
Keyword ：
Hydrolytic acidification Hydrolytic acidification Immobilized biological filler Immobilized biological filler Denitrification Denitrification Sulfide -containing tannery wastewater Sulfide -containing tannery wastewater
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| GB/T 7714 | Zhao, Guangze , Dai, Minghua , Du, Qiangqiang et al. Application of immobilized biological fillers for the hydrolytic acidification and denitrification of sulfide-containing tannery wastewater [J]. | BIOCHEMICAL ENGINEERING JOURNAL , 2024 , 208 . |
| MLA | Zhao, Guangze et al. "Application of immobilized biological fillers for the hydrolytic acidification and denitrification of sulfide-containing tannery wastewater" . | BIOCHEMICAL ENGINEERING JOURNAL 208 (2024) . |
| APA | Zhao, Guangze , Dai, Minghua , Du, Qiangqiang , Yang, Hong . Application of immobilized biological fillers for the hydrolytic acidification and denitrification of sulfide-containing tannery wastewater . | BIOCHEMICAL ENGINEERING JOURNAL , 2024 , 208 . |
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Abstract ：
As an energy and carbon saving process for nitrogen removal from wastewater, the partial nitrification and denitrification process (PN/D) has been extensively researched. However, achieving stable PN in municipal wastewater has always been challenging. In this study, a gel immobilized PN/D nitrogen removal process (GI-PN/D) was established. A 94d pilot -scale experiment was conducted using real municipal wastewater with an ammonia concentration of 43.5 +/- 5.3 mg N/L at a temperature range of 11.3-28.7 degrees C. The nitrogen removal performance and associated pathways, shifts in the microbial community as well as sludge yield were investigated. The results were as follows: the effluent TN and COD were 0.6 +/- 0.4 mg/L and 31.1 +/- 3.8 mg/L respectively, and the NAR exceeding 95 %. GI-PN/D achieved deep nitrogen removal of municipal wastewater through stable PN without taking any other measures. The primary pathways for nitrogen removal were identified as denitrification, simultaneous nitrification-denitrification, and aerobic denitrification. High -throughput sequencing analysis revealed that the immobilized fillers facilitated the autonomous enrichment of functional bacteria in each reactor, effectively promoting the dominance and stability of the microbial communities. In addition, GI-PN/D had the characteristic of low sludge yield, with an average sludge yield of 0.029 kg SS/kg COD. This study provides an effective technical for nitrogen removal from municipal wastewater through PN. (c) 2024 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
Keyword ：
Autonomous enrichment Autonomous enrichment Gel immobilization Gel immobilization Partial nitrification Partial nitrification Sludge yield Sludge yield Deep nitrogen removal Deep nitrogen removal
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| GB/T 7714 | Hu, Xin , Yang, Hong , Fang, Xiaoyue et al. Stable partial nitrification was achieved for nitrogen removal from municipal wastewater by gel immobilization: A pilot-scale study [J]. | JOURNAL OF ENVIRONMENTAL SCIENCES , 2024 , 151 : 529-539 . |
| MLA | Hu, Xin et al. "Stable partial nitrification was achieved for nitrogen removal from municipal wastewater by gel immobilization: A pilot-scale study" . | JOURNAL OF ENVIRONMENTAL SCIENCES 151 (2024) : 529-539 . |
| APA | Hu, Xin , Yang, Hong , Fang, Xiaoyue , Liu, Xuyan , Wang, Jiawei , Wang, Xiaotong et al. Stable partial nitrification was achieved for nitrogen removal from municipal wastewater by gel immobilization: A pilot-scale study . | JOURNAL OF ENVIRONMENTAL SCIENCES , 2024 , 151 , 529-539 . |
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Abstract ：
Here, the mechanism of encapsulated anammox bacteria (AnAOB) driving efficient nitrogen removal in the mainstream partial nitritation/anammox process is revealed. The results show that a high nitrogen removal rate (1.21 +/- 0.02 kgN.(m(3).d)(-1)) was achieved due to the abundant micropore structure inside the anammox immobilized filler, ensuring good connectivity, and a stable aggregation capacity, reducing dependence on extracellular polymeric substances. AnAOB were uniformly distributed throughout all regions of the immobilized filler, and their abundance was higher than that of the control anammox granular sludge (AnGS). Conversely, cracks appeared on the surface of the AnGS, and hollows formed inside. The metagenome analysis revealed that the immobilized filler supported the coexistence of multiple AnAOB, and the appropriate niche enhanced coordination between the AnAOB and dominant companion microorganisms. In contrast, AnGS exhibited stronger NH4+-N and NO2- N loops, potentially reducing the total nitrogen removal efficiency. This study promotes the mainstream application of anammox.
Keyword ：
Metagenome Metagenome Pore structure Pore structure Spatial distribution Spatial distribution Mainstream PN/A Mainstream PN/A Microbial immobilization Microbial immobilization
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| GB/T 7714 | Wang, XiaoTong , Qin, SongYan , Zhao, LiXin et al. Mechanism of gel immobilization driving efficient anammox in mainstream partial nitritation/anammox process: Structural characterization and multi-perspective microbial analysis [J]. | BIORESOURCE TECHNOLOGY , 2024 , 395 . |
| MLA | Wang, XiaoTong et al. "Mechanism of gel immobilization driving efficient anammox in mainstream partial nitritation/anammox process: Structural characterization and multi-perspective microbial analysis" . | BIORESOURCE TECHNOLOGY 395 (2024) . |
| APA | Wang, XiaoTong , Qin, SongYan , Zhao, LiXin , Wang, JiaWei , Yang, Hong . Mechanism of gel immobilization driving efficient anammox in mainstream partial nitritation/anammox process: Structural characterization and multi-perspective microbial analysis . | BIORESOURCE TECHNOLOGY , 2024 , 395 . |
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Abstract ：
This study evaluated the effectiveness of embedding immobilization technology in wastewater treatment and its capacity to enhance the hydrolysis acidification process. Based on this technology, a stable anaerobic environment has been maintained. Results showed that the rates of dissolved organic nitrogen (DON) and dissolved organic phosphorus (DOP) conversion both exceeded 98 % under short hydraulic retention time (HRT = 2h) and ambient temperature. Notably, acetic acid and propionic acid comprised up to 90.9 % of the total volatile fatty acids in the effluent, providing suitable carbon sources for downstream denitrification. 16S rRNA gene sequencing indicated that biofillers effectively enriched and retained functional bacteria, causing norank_Anaerolineaceae (11.6 %-29.7 %) and norank_Bacteroidetes_vadinHA17 (10.8 %-14.9 %) as the dominant genera in the reactor, which were crucial for refractory organic matter degradation. Immobilized biofillers effectively improved wastewater biodegradability, supporting a stable microbial community with high DON and DOP conversion rates as well as increased VFA accumulation.
Keyword ：
Domestic wastewater Domestic wastewater Hydrolytic acidification Hydrolytic acidification Immobilized biofillers Immobilized biofillers Volatile fatty acids Volatile fatty acids Microbial community structure Microbial community structure
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| GB/T 7714 | Li, Siqi , Yang, Hong , Chen, Yahang . Use of embedding immobilized biofillers to improve hydrolysis acidification efficiency in domestic wastewater treatment [J]. | BIORESOURCE TECHNOLOGY , 2024 , 414 . |
| MLA | Li, Siqi et al. "Use of embedding immobilized biofillers to improve hydrolysis acidification efficiency in domestic wastewater treatment" . | BIORESOURCE TECHNOLOGY 414 (2024) . |
| APA | Li, Siqi , Yang, Hong , Chen, Yahang . Use of embedding immobilized biofillers to improve hydrolysis acidification efficiency in domestic wastewater treatment . | BIORESOURCE TECHNOLOGY , 2024 , 414 . |
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Abstract ：
In this study, three concentrations of Na2SO3 solution were used to remove dissolved oxygen in the influent water and enter the up-flow anaerobic sludge bed reactor (UASB). This study investigated the effects of three con-centrations of Na2SO3 on the inhibition and performance recovery of the ANAMMOX system and the structure of the microbial community. The results showed that although Na2SO3 had a deoxidizing function, the ANAMMOX system underwent a sulfate reduction reaction after adding Na2SO3, and the reduction product was mainly H2S, which caused the AnAOB to be inhibited by sulfide. The denitrification performance was less than 1/2 of that under normal conditions. The ANAMMOX system was restored by immediately removing Na2SO3 and reducing nitrogen load. After 11, 20, and 34 days, the performance of the ANAMMOX system returned to normal, but low concentrations(45 mg/L) required a long recovery time. High-throughput sequencing analysis showed that the community of the ANAMMOX system changed significantly. Before and after the experiment, the relative abundance of ANAMMOX functional bacteria Candidatus Brocadia decreased from 32.66% to 21.4%, and Can-didatus Kuenenia decreased from 7.3% to 4.06%. However, the relative abundances of Armatimonadetes and Ignavibacteriae increased from below 2% to about 20%. At the same time, Thiobacillus and Desulfuromonadales were observed. This paper explores and summarizes the cause of Na2SO3's inhibition of AnAOB, highlights the recovery of AnAOB after inhibition for the stable operation and deepens the understanding of the environmental conditions regulating the ANAMMOX process.
Keyword ：
ANAMMOX ANAMMOX Performance recovery Performance recovery Sulfide Sulfide Inhibition Inhibition Sodium sulfite Sodium sulfite Microbial community Microbial community
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| GB/T 7714 | Geng, Lianghan , Yang, Hong , Wang, Xiaotong et al. Inhibition and recovery of ANAMMOX with Na2SO3: From performance to microbial community analysis [J]. | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2023 , 11 (1) . |
| MLA | Geng, Lianghan et al. "Inhibition and recovery of ANAMMOX with Na2SO3: From performance to microbial community analysis" . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 11 . 1 (2023) . |
| APA | Geng, Lianghan , Yang, Hong , Wang, Xiaotong , Liu, Xuyan , Wang, Jiawei , Su, Yang . Inhibition and recovery of ANAMMOX with Na2SO3: From performance to microbial community analysis . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2023 , 11 (1) . |
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Abstract ：
The rotating cage biological contactors (RCBC) is based on the partial nitrification immobilization of bioactive fillers, incorporating the advantages of traditional the rotating biological contactor (RBC). The RCBC is more energy-efficient, with higher ammonia oxidation rate (AOR) and nitrite accumulation rate (NAR) levels compared to the RBC Under the conditions of different rotational speeds and immersion rates of an RCBC, the volumetric oxygen transfer coefficient (KLa) was measured. The experimental results show that these two factors significantly affected the KLa of the reactor, which ranged from 1.08 to 42.02 h-1. Regarding long-term ammonia oxidation performance, the RCBC can successfully start partial nitrification in only 5 days. After stable operation, the AOR was 23.34 & PLUSMN; 0.55 mg (L & BULL;h)-1, with an NAR of 93.42 & PLUSMN; 0.84 %. This indicates a good adaptability to variations in influent ammonia nitrogen (NH4+-N) in the range of 95.92-403.14 mg & BULL;L-1 and good resistance to free nitrous acids (FNA). In addition, high-throughput sequencing analysis showed that the operation mode of the RCBC could effectively inhibit the growth of nitrite-oxidizing bacteria (NOB) in immobilized bioactive fillers, and the internal oxygen-limited environment provided favorable conditions for reducing the relative abundance and activity of NOB. In this study, a partial nitrification device was established by immobilized bioactive fillers in the form of an RCBC for the first time, providing a partial nitrification technology without aeration.
Keyword ：
Rotating cage biological contactors Rotating cage biological contactors Immobilized bioactive fillers Immobilized bioactive fillers Volumetric oxygen transfer coefficient Volumetric oxygen transfer coefficient Partial nitrification Partial nitrification
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| GB/T 7714 | Zang, Liyan , Yang, Hong , Wang, Jiawei et al. Performance of rotating cage biological contactors based on the partial nitrification of immobilized bioactive fillers [J]. | JOURNAL OF WATER PROCESS ENGINEERING , 2023 , 53 . |
| MLA | Zang, Liyan et al. "Performance of rotating cage biological contactors based on the partial nitrification of immobilized bioactive fillers" . | JOURNAL OF WATER PROCESS ENGINEERING 53 (2023) . |
| APA | Zang, Liyan , Yang, Hong , Wang, Jiawei , Wang, Xiaotong , Li, Siqi , Liu, Xuyan . Performance of rotating cage biological contactors based on the partial nitrification of immobilized bioactive fillers . | JOURNAL OF WATER PROCESS ENGINEERING , 2023 , 53 . |
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Abstract ：
Mine wastewater treatment using bio-sulfate reduction technology forms sulfur-containing wastewater that comprises sulfides (HS- and S2-) and metal ions. Bio-sulfur generated by sulfur-oxidizing bacteria in such wastewater is usually negatively charged hydrocolloidal particles. However, bio-sulfur and metal resource recovery are difficult using tradi-tional methods. In this study, the sulfide biological oxidation-alkali flocculation (SBO-AF) method was investigated to recover the above resources, and to provide a technical reference for mine wastewater resource recovery and heavy metal pollution control. Specifically, the performance of SBO in forming bio-sulfur and the key parameters of SBO-AF were explored and then applied in a pilot-scale process to recover resources from wastewater. Results show that par-tial sulfide oxidation was achieved under a sulfide loading rate of 5.08 +/- 0.39 kg/m3 center dot d, dissolved oxygen of 2.9-3.5 mg/L and temperature of 27-30 degrees C. The average sulfide oxidation rate and sulfur selectivity ratio were 92.86 % and 90.22 %, respectively. At pH 10, metal hydroxide and bio-sulfur colloids co-precipitated through the pre-cipitation catching and adsorption charge neutralization effect. The average manganese, magnesium and aluminum concentrations and turbidity in the wastewater were 53.93 mg/L, 522.97 mg/L, 34.20 mg/L and 505 NTU, respectively, and decreased to 0.49 mg/L, 80.65 mg/L, 1.00 mg/L and 23.33 NTU, respectively, after treatment. The recovered pre-cipitate mainly contained sulfur, along with metal hydroxides. The average sulfur, manganese, magnesium and alumi-num contents were 45.6 %, 29.5 %,15.1 % and 6.5 %, respectively. Economic feasibility analysis and the above results show that SBO-AF has obvious technical and economic advantages in the recovery resources from mine wastewater.
Keyword ：
Mine wastewater Mine wastewater Metal resources Metal resources Sulfide biological oxidation Sulfide biological oxidation Resource recovery Resource recovery Alkali flocculation Alkali flocculation Bio-sulfur Bio-sulfur
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| GB/T 7714 | Hu, Xin , Yang, Hong , Fang, Xiaoyue et al. Recovery of bio-sulfur and metal resources from mine wastewater by sulfide biological oxidation-alkali flocculation: A pilot-scale study [J]. | SCIENCE OF THE TOTAL ENVIRONMENT , 2023 , 876 . |
| MLA | Hu, Xin et al. "Recovery of bio-sulfur and metal resources from mine wastewater by sulfide biological oxidation-alkali flocculation: A pilot-scale study" . | SCIENCE OF THE TOTAL ENVIRONMENT 876 (2023) . |
| APA | Hu, Xin , Yang, Hong , Fang, Xiaoyue , Shi, Tongyu , Tan, Keyan . Recovery of bio-sulfur and metal resources from mine wastewater by sulfide biological oxidation-alkali flocculation: A pilot-scale study . | SCIENCE OF THE TOTAL ENVIRONMENT , 2023 , 876 . |
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Abstract ：
The treatment performance of anaerobic ammonia oxidation (anammox) immobilized filler on different proportions of domestic wastewater was evaluated. The results showed that, in comparison to synthetic wastewater, 50% domestic wastewater promoted the anammox reaction of immobilized filler, while 100% domestic wastewater had no significant effect on the anammox activity of immobilized filler but the total nitrogen removal efficiency (TNRE) was improved through enhanced denitrification. The TNRE of the immobilized filler was 82.5%, which was significantly higher than that of AnGS (69.7%), and its average anammox contribution rate was more than 90%. This was because the encapsulated anammox biomass could better maintain competitive advantages and coordinate the symbiotic relationship with denitrifying bacteria. Moreover, lower NH4+-N concentration resulted in greater influence of C/N ratio on anammox performance than COD concentration, while the opposite was true at high NH4+-N concentration. This study verified that anammox immobilized filler is effective for mainstream applications.
Keyword ：
Microbial composition Microbial composition Domestic wastewater Domestic wastewater Anammox Anammox Immobilized filler Immobilized filler C/N ratio C/N ratio
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| GB/T 7714 | Wang, Xiao Tong , Yang, Hong , Zhou, YaKun et al. Performance and mechanism analysis of gel immobilized anammox bacteria in treating different proportions of domestic wastewater: a valid alternative to granular sludge [J]. | BIORESOURCE TECHNOLOGY , 2022 , 347 . |
| MLA | Wang, Xiao Tong et al. "Performance and mechanism analysis of gel immobilized anammox bacteria in treating different proportions of domestic wastewater: a valid alternative to granular sludge" . | BIORESOURCE TECHNOLOGY 347 (2022) . |
| APA | Wang, Xiao Tong , Yang, Hong , Zhou, YaKun , Liu, XuYan . Performance and mechanism analysis of gel immobilized anammox bacteria in treating different proportions of domestic wastewater: a valid alternative to granular sludge . | BIORESOURCE TECHNOLOGY , 2022 , 347 . |
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Abstract ：
一种基于厌氧氨氧化包埋生物活性填料处理稀土尾水的方法，属于污、废水生物脱氮处理的技术领域。首先，稀土尾水进入部分亚硝化池，根据进水条件调控DO，将进水中的56.9％的氨氮氧化为亚硝酸盐氮。之后出水进入厌氧氨氧化反应池，厌氧氨氧化包埋生物活性填料利用亚硝酸盐氮和剩余的氨氮生成氮气和硝酸盐氮。在反硝化池内，厌氧氨氧化包埋生物活性填料利用投加的有机碳源，去除稀土尾水中原有的硝酸盐氮和厌氧氨氧化反应产生的硝酸盐氮。部分亚硝化阶段可以节省曝气量和不需要污泥回流设备，厌氧氨氧化阶段可以节省大量有机碳源。本方法能够实现稀土尾水的高效脱氮，可大大降低脱氮处理成本。
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| GB/T 7714 | 杨宏 , 池伟利 . 一种基于厌氧氨氧化包埋生物活性填料处理稀土尾水的方法 : CN202210297623.4[P]. | 2022-03-23 . |
| MLA | 杨宏 et al. "一种基于厌氧氨氧化包埋生物活性填料处理稀土尾水的方法" : CN202210297623.4. | 2022-03-23 . |
| APA | 杨宏 , 池伟利 . 一种基于厌氧氨氧化包埋生物活性填料处理稀土尾水的方法 : CN202210297623.4. | 2022-03-23 . |
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