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学者姓名：杨宏
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Abstract ：
A gel filler with diatomaceous earth, activated carbon, and CaCO3 compounded with polyvinyl alcohol was prepared and optimized. Rapid start-up and efficient and stable operation of partial nitrification (PN) was achieved by immobilization of conventional activated sludge. The results showed that the proper material proportion synergistically improved the performance and oxygen mass transfer rate of the gel. The continuous flow reactor was operated for 10d to successfully start PN, and the maximum ammonia oxidation rate of this filler was 58.30 mg center dot(L center dot h)- 1 during the stable operation, and the nitrite accumulation rate was maintained above 90 %. However, due to the greater mass transfer resistance of unoptimized fillers, more dissolved oxygen waste and nitrogen loss were caused, resulting in delayed expression of biological activity. Based on the kinetic characterization of ammonia-oxidizing bacteria (AOB) within the filler and high-throughput sequencing, it was demonstrated that the rapid start-up and efficient and stable operation of the PN system was due to the highly oxygenophilic and community-dominant position of AOB within this filler. This study provides new options and insights at the level of immobilization technology for the realization and efficient and stable operation of PN.
Keyword ：
Immobilization materials Immobilization materials Partial nitrification Partial nitrification Nitrogen removal Nitrogen removal Start-up Start-up Oxygen mass transfer Oxygen mass transfer
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| GB/T 7714 | Zhang, Xinming , Yang, Hong . Optimize the ratio of immobilized gel materials to improve gel performance and oxygen mass transfer rate: Achieve rapid start-up and efficient and stable operation of partial nitration [J]. | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2024 , 12 (5) . |
| MLA | Zhang, Xinming 等. "Optimize the ratio of immobilized gel materials to improve gel performance and oxygen mass transfer rate: Achieve rapid start-up and efficient and stable operation of partial nitration" . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 12 . 5 (2024) . |
| APA | Zhang, Xinming , Yang, Hong . Optimize the ratio of immobilized gel materials to improve gel performance and oxygen mass transfer rate: Achieve rapid start-up and efficient and stable operation of partial nitration . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2024 , 12 (5) . |
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Abstract ：
A two-stage partial nitritation/anammox process based on microbial encapsulation (PN/A-E) was established. The nitrogen removal characteristics of PN/A-E under high and low ammonia nitrogen and after reactivation following a long-term shutdown were comprehensively investigated and compared with anammox granular sludge (AnGS). The stable PN process did not depend on high ammonia nitrogen, and the nitrite accumulation rate reached 95.2 +/- 0.7 %. The overall nitrogen removal rate of encapsulated anammox bacteria was twice that of the AnGS, and it was more tolerant to external interference. Moreover, PN/A-E showed good reactivation performance, and the total nitrogen in the effluent was 10.0 +/- 1.4 mg center dot L-1 when the final hydraulic retention time was 2.18 h. The immobilized fillers support an increase in ammonia-oxidizing bacteria under restricted conditions and were more conducive to the dominance of functional bacteria and the stability of microbial community under low ammonia nitrogen. This study provides a positive method to achieve a reliable PN/A.
Keyword ：
Microbial community structure Microbial community structure Anammox Anammox Nitrogen removal Nitrogen removal Partial nitritation Partial nitritation Microbial immobilization Microbial immobilization
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| GB/T 7714 | Wang, XiaoTong , Yang, Hong , Wang, JiaWei . Gel-immobilized partial nitritation/anammox achieves reliable nitrogen removal at different concentrations of nitrogen and reactivation processes [J]. | BIORESOURCE TECHNOLOGY , 2023 , 370 . |
| MLA | Wang, XiaoTong 等. "Gel-immobilized partial nitritation/anammox achieves reliable nitrogen removal at different concentrations of nitrogen and reactivation processes" . | BIORESOURCE TECHNOLOGY 370 (2023) . |
| APA | Wang, XiaoTong , Yang, Hong , Wang, JiaWei . Gel-immobilized partial nitritation/anammox achieves reliable nitrogen removal at different concentrations of nitrogen and reactivation processes . | BIORESOURCE TECHNOLOGY , 2023 , 370 . |
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Abstract ：
一种高积累率短程硝化活性污泥的培养方法，属于水处理领域。采用污水处理厂的活性污泥为种源，保持了原有短程硝化(AOB)菌群的结构特征，采用静置24h的FA抑制启动方法，帮助AOB菌群建立优势地位，并在高溶解氧(DO)的运行条件下，利用高FNA抑制了亚硝酸盐氧化菌(NOB)的生长，维持高积累率，再通过规律排泥，进而在保持系统高氨氧化速率的前提下，规律性排泥淘汰NOB，使AOB快速富集，实现高积累率短程硝化活性污泥的培养。
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| GB/T 7714 | 杨宏 , 王泊含 . 一种高积累率短程硝化活性污泥的培养方法 : CN202210297622.X[P]. | 2022-03-23 . |
| MLA | 杨宏 等. "一种高积累率短程硝化活性污泥的培养方法" : CN202210297622.X. | 2022-03-23 . |
| APA | 杨宏 , 王泊含 . 一种高积累率短程硝化活性污泥的培养方法 : CN202210297622.X. | 2022-03-23 . |
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Abstract ：
This study focused on treating municipal wastewater using a novel two-stage partial-nitritation/anammox (PN/ A) process by gel immobilization. The first stage employed a PN immobilized carrier reactor, in which the nitrite accumulation rate was 90.7-95.1 % and the COD removal rate was 33.2 +/- 2.9 %. The second stage comprised an anammox-based sequencing batch reactor (SBR) fed with the effluent from the first stage. Two second stage SBRs were tested to compare their treatment effect, one contained anammox granules (AG-SBR) and one contained anammox immobilized carriers (AC-SBR). The AC-SBR exhibited better nitrogen removal performance than the AG-SBR during the PN/A process, with the nitrogen removal rate of AC-SBR being 83.4 +/- 1.5 %. The gel immobilization technology effectively reduced the adverse effects of dissolved oxygen and organic matter in the PN reactor effluent on the anammox system. Aerobic denitrification was observed in the AG-SBR. In the PN immobilized carrier, Nitrospira was the dominant nitrite-oxidizing bacteria (NOB) with a relative abundance of 0.10 %, indicating that the growth of NOB was effectively inhibited in municipal wastewater. Candidatus Kue-nenia was the dominant genus of anammox bacteria, exhibiting a relative abundance of 1.50 % and 19.26 % in the AG-SBR and AC-SBR, respectively. Thus, the PN/A process by gel immobilization is an effective treatment for municipal wastewater.
Keyword ：
Gel immobilization Gel immobilization Municipal wastewater Municipal wastewater Two -stage PN Two -stage PN Anammox immobilized carrier Anammox immobilized carrier A process A process Anammox granules Anammox granules
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| GB/T 7714 | Wang, Jiawei , Zhang, Si , Li, Jun et al. Municipal wastewater treatment via the two-stage partial nitrification-anammox (PN/A) process with gel immobilization [J]. | JOURNAL OF WATER PROCESS ENGINEERING , 2022 , 50 . |
| MLA | Wang, Jiawei et al. "Municipal wastewater treatment via the two-stage partial nitrification-anammox (PN/A) process with gel immobilization" . | JOURNAL OF WATER PROCESS ENGINEERING 50 (2022) . |
| APA | Wang, Jiawei , Zhang, Si , Li, Jun , Yang, Hong . Municipal wastewater treatment via the two-stage partial nitrification-anammox (PN/A) process with gel immobilization . | JOURNAL OF WATER PROCESS ENGINEERING , 2022 , 50 . |
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Abstract ：
The copper mine drainage (CMD) formed during copper mining and smelting has the characteristics of being low pH, with a high sulfate concentration and large amounts of metal ions such as Fe, Cu, and Mn. In order to recover copper-dominated many resources from CMD, realize effective control of environmental pollution and avoid the loss of precious resources. The combined process of Fe pretreatment recovery, Cu treatment recovery, and S treatment recovery was established based on H2O2 oxidation, sulfate-reducing bacteria (SRB) reduction, and sulfur-oxidizing bacteria oxidation. A pilot-scale study was carried out with a CMD inlet flow rate of 12 m3/d. Results show that the average Cu2+ removal rate was 99.66%, and the recovered dry matter precipitated (mainly was CuS) copper content was 35.6%. In addition, the average total Fe, Mn and Mg removal rate was 99.46%, 99.10% and 84.08%. And the S2-oxidation rate was above 90% (mainly converted to sulfur). 27.52% Fe precipitated dry matter and 42.9% S, 32.2% Mg, and 13.8% Mn precipitated dry matter were also recovered as by-products. Through high-throughput analysis of the functional and structural changes in the SRB community, showed that indigenous SRB from the copper mine exhibit good adaptability to CMD conditions, with the enrichment and acclimation of SRBs achieving a high level of expression of bioactive. The bottleneck of SRB applied to CMD treatment was solved. Finally, the economic feasibility analysis shows that the combined process treatment CMD can save 58.6% of the cost compared with traditional lime neutralization method, and avoid the sludge treatment cost of 29.03 million USD per year. The above provides engineering practical reference for CMD treatment and resource recovery.
Keyword ：
Resources recovery Resources recovery Sulfate-reducing bacteria Sulfate-reducing bacteria Economic feasibility analysis Economic feasibility analysis Copper mine drainage Copper mine drainage Combined process Combined process
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| GB/T 7714 | Hu, Xin , Yang, Hong , Wu, Fan et al. Recovery of copper-dominated resources from copper mine drainage by chemical oxidation and sulfur biocycling: A pilot-scale study [J]. | JOURNAL OF CLEANER PRODUCTION , 2022 , 378 . |
| MLA | Hu, Xin et al. "Recovery of copper-dominated resources from copper mine drainage by chemical oxidation and sulfur biocycling: A pilot-scale study" . | JOURNAL OF CLEANER PRODUCTION 378 (2022) . |
| APA | Hu, Xin , Yang, Hong , Wu, Fan , Fang, Xiaoyue , Tan, Keyan . Recovery of copper-dominated resources from copper mine drainage by chemical oxidation and sulfur biocycling: A pilot-scale study . | JOURNAL OF CLEANER PRODUCTION , 2022 , 378 . |
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Abstract ：
To overcome the issue of substandard nitrogen and phosphorus discharge, resulting from the low carbon/ni-trogen (C/N) ratio of municipal wastewater, immobilized filler was used to re-hydrolyze the alkaline fermen-tation liquid of waste activate sludge (WAS) as a nitrogen removing carbon source. The complex organic matter was further hydrolyzed and its denitrification efficiency as a carbon source for nitrogen removal was improved. Volatile fatty acids increased from 1605 & PLUSMN; 5 mg/L to 2546 +/- 37 mg/L after re-hydrolysis of mixed-alkali sludge fermentation liquid, and complex organic matter, such as fulvic acids, humic acids, class I aromatic proteins, and soluble microbial products were hydrolyzed into small-molecule organics. When the re-hydrolysis fermentation liquid (RH-SFL) was used as the carbon source for nitrogen removal, the nitrogen removal effect was close to sodium acetate and the nitrogen removal rate (NRR) was up to 98.5 +/- 0.5%. According to the NOX--N removal curve, the reaction rate of RH-SFL was significantly higher than before re-hydrolysis (nRH-SFL) (0.486 > 0.38). This technology can significantly improve the effective organic quality in the alkaline fermentation liquid of WAS, which can be more easily utilized by denitrifying bacteria. This provides a feasible and effective solution for nitrogen removal in municipal wastewater with insufficient carbon.
Keyword ：
Re-hydrolysis Re-hydrolysis Carbon source Carbon source Immobilized fillers Immobilized fillers Denitrification Denitrification Waste activated sludge Waste activated sludge
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| GB/T 7714 | Liu, Xuyan , Yang, Hong , Chang, Jiang et al. Re-hydrolysis characteristics of alkaline fermentation liquid from waste activated sludge: Feasibility as a carbon source for nitrogen removal [J]. | PROCESS SAFETY AND ENVIRONMENTAL PROTECTION , 2022 , 165 : 230-240 . |
| MLA | Liu, Xuyan et al. "Re-hydrolysis characteristics of alkaline fermentation liquid from waste activated sludge: Feasibility as a carbon source for nitrogen removal" . | PROCESS SAFETY AND ENVIRONMENTAL PROTECTION 165 (2022) : 230-240 . |
| APA | Liu, Xuyan , Yang, Hong , Chang, Jiang , Bai, Yongsheng , Shi, Luyuan , Su, Bojun et al. Re-hydrolysis characteristics of alkaline fermentation liquid from waste activated sludge: Feasibility as a carbon source for nitrogen removal . | PROCESS SAFETY AND ENVIRONMENTAL PROTECTION , 2022 , 165 , 230-240 . |
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Abstract ：
The nitrogen removal characteristics, physicochemical properties, and microbial community composition of four different anaerobic ammonium oxidation (anammox) sludge morphologies were investigated. The morphologies considered in this study, namely suspended sludge (Rs), biofilm (Rm), granular sludge (Rg), and encapsulated biomass (Re), were prepared from floc sludge. The results show that Re exhibited the maximum anammox activity, followed by Rg, Rm, and Rs. Additionally, the anammox contribution rate was higher in Rg and Re. The higher extracellular polymer content in Rg promoted sludge accumulation, and tryptophan was observed in Rm and Rg, which was replaced by humic acids in Rs. Re showed the largest specific surface area, hydrophobicity and strength, and its good structure ensured enrichment of anammox bacteria (AnAOB). In terms of the microbial community, the functional bacterium Candidatus Kuenenia accounted for the highest proportion in Rm (39.27%), but the presence of both anaerobic and aerobic regions led to increased community complexity with more nitrifying bacteria. In contrast, Rg and Re had a more specific microbial community. In addition, denitrifying bacteria tended to grow in Rs, while nitrifying bacteria were retained in Rm. The AnAOB were more likely to be enriched in sludge aggregates (both Rm and Rg) and carriers (Re). Through correlation analysis, the potential relationship involving bacterial flora evolution of each sample was clarified. Finally, the structural models of different morphologies of sludge were proposed. This study deepens the understanding of various anammox sludge morphologies as well as provides useful information for the cultivation of AnAOB and further application of anammox.
Keyword ：
Anammox Anammox Granular sludge Granular sludge Flora structure Flora structure Immobilized filler Immobilized filler Biofilm Biofilm Sludge morphology Sludge morphology
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| GB/T 7714 | Wang, XiaoTong , Yang, Hong , Su, Yang et al. Effects of sludge morphology on the anammox process: Analysis from the perspectives of performance, structure, and microbial community [J]. | CHEMOSPHERE , 2022 , 288 . |
| MLA | Wang, XiaoTong et al. "Effects of sludge morphology on the anammox process: Analysis from the perspectives of performance, structure, and microbial community" . | CHEMOSPHERE 288 (2022) . |
| APA | Wang, XiaoTong , Yang, Hong , Su, Yang , Liu, XuYan . Effects of sludge morphology on the anammox process: Analysis from the perspectives of performance, structure, and microbial community . | CHEMOSPHERE , 2022 , 288 . |
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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 ：
为优化短程硝化反硝化工艺对模拟城市污水的脱氮处理性能，通过包埋固定化技术分别制得短程硝化、反硝化填料，形成连续流脱氮工艺。结果表明，短程硝化填料活性恢复后的氨氧化速率(AOR)可达39.83mg·(L·h)-1，亚硝酸盐积累率(NAR)稳定在96.60%。采用响应曲面法考察了短程硝化过程中的DO、HRT和填充率等因素对氨氮去除率(ARR)和NAR的影响，并建立了二次回归模型，通过模型预测的最佳运行工况为：HRT为3.48 h,DO为3.64 mg·L~(-1)，填充率为20%。此时，后置反硝化包埋填料，当平均C/N为2.82时，总氮出水平均质量浓度为2.29 mg·L~(-1)，去除率稳定在9...
Keyword ：
反硝化 反硝化 短程硝化 短程硝化 包埋填料 包埋填料 响应曲面法 响应曲面法
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| GB/T 7714 | 方小月 , 杨宏 , 刘旭妍 et al. 基于包埋填料的短程硝化反硝化工艺的脱氮性能优化 [J]. | 环境工程学报 , 2022 , 16 (06) : 1979-1990 . |
| MLA | 方小月 et al. "基于包埋填料的短程硝化反硝化工艺的脱氮性能优化" . | 环境工程学报 16 . 06 (2022) : 1979-1990 . |
| APA | 方小月 , 杨宏 , 刘旭妍 , 王晓曈 , 胡鑫 . 基于包埋填料的短程硝化反硝化工艺的脱氮性能优化 . | 环境工程学报 , 2022 , 16 (06) , 1979-1990 . |
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Abstract ：
The present study sought to treat the ion-adsorption type rare earth mine wastewater in a pilot plant system using the nitritation-denitrification process with immobilized biological fillers. Meanwhile, the microbial community structure in the immobilized fillers was analyzed. The ammonia nitrogen removal rate of the nitritation fillers reached 0.43 kg N m−3 d−1 on day 61 (28.1 °C) and the total nitrogen removal rate of the denitrification fillers reached 0.51 kg N m−3 d−1 on day 58 (27.8 °C) under the hydraulic retention time of 3.4 hr and a fillers volume ratio of 8% (v/v). The average NH4+-N and TN removal efficiencies of the nitritation-denitrification process were 96.9% and 96.8%, respectively, during the steady state operation period (day 26–72). The results also indicate that high DO (5.5–6.5 mg L−1) could induce rapid growth of nitrite-oxidizing bacteria (NOB) in the nitritation fillers, even though the initial NOB proportion is extremely low. The optimal operational performance of the denitrification fillers reactor was the COD/(NO2−-N + NO3−-N) ratio of 3.7–4.2. The high-throughput sequencing analysis showed that the functional bacteria in the immobilized fillers could maintain a competitive advantage. The abundance of Nitrosomonas in the nitritation fillers increased from 6.58% to 21.24%, while Thauera and Ottowia were the dominant denitrifying bacteria genera in the denitrification fillers. © 2022 Elsevier B.V.
Keyword ：
Denitrification; Immobilized biological fillers; Microbial community structure; Nitritation; Rare earth mine wastewater Denitrification; Immobilized biological fillers; Microbial community structure; Nitritation; Rare earth mine wastewater
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| GB/T 7714 | Zou, Z. , Yang, H. , Zhang, S. et al. Nitrogen removal performance and microbial community analysis of immobilized biological fillers in rare earth mine wastewater [J]. | Biochemical Engineering Journal , 2022 , 186 . |
| MLA | Zou, Z. et al. "Nitrogen removal performance and microbial community analysis of immobilized biological fillers in rare earth mine wastewater" . | Biochemical Engineering Journal 186 (2022) . |
| APA | Zou, Z. , Yang, H. , Zhang, S. , Chi, W. , Wang, X. , Liu, Z. . Nitrogen removal performance and microbial community analysis of immobilized biological fillers in rare earth mine wastewater . | Biochemical Engineering Journal , 2022 , 186 . |
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