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[1]鄧永春,曹江玲,吳沛嶸,等.缺氧條件對低碳氮比廢水好氧顆粒污泥穩(wěn)定性的影響[J].中國給水排水,2025,41(9):8-16.
DENGYong-chun,CAOJiang-ling,WUPei-rong,et al.Impact of Mixing Effect in Pre-anoxic Phase on Stability of Aerobic Granular Sludge in Treating Wastewater with Low Carbon to Nitrogen Ratio[J].China Water & Wastewater,2025,41(9):8-16.點擊復制
缺氧條件對低碳氮比廢水好氧顆粒污泥穩(wěn)定性的影響
中國給水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第41卷 期數(shù): 2025年第9期 頁碼: 8-16 欄目: 出版日期: 2025-05-01
Title:Impact of Mixing Effect in Pre-anoxic Phase on Stability of Aerobic Granular Sludge in Treating Wastewater with Low Carbon to Nitrogen Ratio
作者:鄧永春， 曹江玲， 吳沛嶸， 段文焱， 陳芳媛（昆明理工大學環(huán)境科學與工程學院 云南省土壤固碳與污染控制重點實驗室，云南 昆明 650500）
Author(s):DENG Yong-chun， CAO Jiang-ling， WU Pei-rong， DUAN Wen-yan， CHEN Fang-yuan（Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control， Faculty of Environmental Science and Engineering， Kunming University of Science and Technology， Kunming 650500， China）
關(guān)鍵詞:好氧顆粒污泥; 低碳氮比廢水; 缺氧; 外循環(huán); 穩(wěn)定性
Keywords:aerobic granular sludge; low carbon to nitrogen ratio wastewater; anoxic phase; external circulation; stability
摘要:好氧顆粒污泥穩(wěn)定性低是阻礙其應用的主要問題。為揭示好氧顆粒污泥系統(tǒng)前置缺氧段混合效果對好氧顆粒穩(wěn)定性的影響，在SBR反應器中接種冷藏6個月的好氧顆粒污泥，將碳氮負荷（COD/NH4+-N）從200/40 mg/L提升至600/150 mg/L，通過施加和不施加外循環(huán)操作改變?nèi)毖醵位旌闲Ч疾旌醚躅w粒污泥系統(tǒng)處理性能、顆粒穩(wěn)定性及微生物種群結(jié)構(gòu)變化。結(jié)果表明，接種的好氧顆粒污泥恢復活性后，當碳氮負荷為400/50 mg/L時未開啟外循環(huán)操作，系統(tǒng)對COD、NH4+-N和TN的去除率分別為95%、99%和20%；當碳氮負荷升至400/80和400/100 mg/L時開啟外循環(huán)操作，雖然好氧顆粒污泥受反硝化氣態(tài)氮沖擊導致沉淀性能變差，SVI30在50~150 mL/g之間波動，系統(tǒng)對COD和NH4+-N的去除率仍能夠分別保持在95%和99%，但是TN去除率提升至50%；而當碳氮負荷升至600/150 mg/L時再次關(guān)閉外循環(huán)操作后，好氧顆粒結(jié)構(gòu)變得疏松分散，平均粒徑增大至791 μm，SVI30惡化為175 mL/g，雖然COD去除率仍能保持在95%左右，但NH4+-N和TN去除率分別降低至50%和6%。高通量測序分析表明，缺氧段施加外循環(huán)操作后，好氧顆粒微生物多樣性和豐富度增加，主要優(yōu)勢菌種為反硝化菌，主要包括Thauera和 Rhodobacter。在處理低碳氮比廢水時在缺氧段施加外循環(huán)操作，能夠通過增強混合效果提高系統(tǒng)反硝化性能，富集大量反硝化菌，從而增強好氧顆粒污泥穩(wěn)定性。
Abstract:Low stability of aerobic granular sludge(AGS) in long-term operation is the main problem hindering its further application in practice. To investigate the impact of the mixing effect in pre- anoxic phase on the stability of AGS, a sequencing batch reactor (SBR) inoculated with AGS refrigerated for 6 months was set up with increased carbon and nitrogen load (C/N) from 200/40 mg/L to 600/150 mg/L in this study. The mixing effect of the pre-anoxic phase was adjusted by adding and not adding an external circulation operation. The properties of the AGS, such as the performance, stability, and microbial community structure, were examined. The results showed that when the C/N was 400/50 mg/L with no external circulation, the removal rate of COD, NH4+-N and TN were 95%, 99%, and 20%, respectively, after the seeded AGS revived. When the C/N was increased to 400/80 mg/L and 400/100 mg/L with external circulation, COD and NH4+-N removal rate could still maintain at 95% and 99%, respectively, but the TN removal rate greatly increased to 50%, although the settling ability of the AGS deteriorated due to the mass production of gaseous nitrogen from denitrification, with SVI30 fluctuating between 50 mL/g and 150 mL/g. However, when the C/N was increased to 600/150 mg/L with no external circulation, NH4+-N and TN removal rate decreased to 50% and 6%, respectively, although COD removal rate could still maintain at about 95%. At the same time, the physical structure of AGS became loose and dispersed with the average particle size increased to 791 μm and SVI30 deteriorated to 175 mL/g. High-throughput sequencing analysis showed that the microbial diversity and richness of aerobic particles increased with the external circulation in the anoxic phase, and the main genus were denitrifying bacteria, mainly including Thauera and Rhodobacter. These findings demonstrated that the external circulation operation in anoxic phase can improve the denitrification performance of AGS system and enrich a large number of denitrifying bacteria by enhancing the mixing effect, thereby enhancing its stability .
相似文獻/References:
[1]張瑩,王昌穩(wěn),李軍,等.投加微粉強化低濃度生活污水活性污泥好氧顆粒化[J].中國給水排水,2018,34(21):12.
ZHANG Ying,WANG Chang wen,LI Jun,et al.Strengthening Aerobic Granulation of Activated Sludge by Adding Micro Powder in Low Concentration Sewage Treatment[J].China Water & Wastewater,2018,34(9):12.
[2]趙錫鋒,李興強,李軍.好氧顆粒污泥技術(shù)中試研究及應用進展[J].中國給水排水,2020,36(8):30.
[3]白靜,王現(xiàn)麗,李智,等.好氧顆粒污泥處理高濃度有機廢水的研究進展[J].中國給水排水,2020,36(8):38.
[4]吳越,趙傳峰,孫法文,等.雙區(qū)沉淀池用于連續(xù)流好氧顆粒污泥工藝的可行性[J].中國給水排水,2020,36(19):9.
WU Yue,ZHAO Chuan-feng,SUN Fa-wen,et al.Feasibility of Aerobic Granular Sludge Formation in Continuous Flow Reactor Based on Two-zone Sedimentation Tank[J].China Water & Wastewater,2020,36(9):9.
[5]郝桂珍,范宇成,徐利,等.低溫下好氧顆粒污泥強化造粒研究[J].中國給水排水,2020,36(19):32.
HAO Gui-zhen,FAN Yu-cheng,XU Li,et al.Enhanced Granulation of Aerobic Granular Sludge at Low Temperature[J].China Water & Wastewater,2020,36(9):32.
[6]宋欣,孫士權(quán),商光琦,等.氮硫比對好氧顆粒污泥特性影響及其脫氮除硫效果[J].中國給水排水,2021,37(19):91.
SONG Xin,SUN Shi-quan,SHANG Guang-qi,et al.Effect of Nitrogen to Sulfur Ratio on Characteristics of Aerobic Granular Sludge and Its Nitrogen and Sulfur Removal Performance[J].China Water & Wastewater,2021,37(9):91.
[7]王佳璇,李政陽,劉喆,等.高效降解喹啉好氧顆粒污泥的快速形成及性能研究[J].中國給水排水,2022,38(9):8.
WANGJia-xuan,LIZheng-yang,LIUZhe,et al.Rapid Formation and Performance of Aerobic Granular Sludge for Efficient Quinoline Degradation[J].China Water & Wastewater,2022,38(9):8.
[8]吳遠遠,Mark van Loosdrecht,郝曉地,等.好氧顆粒污泥低溫穩(wěn)定性中試研究[J].中國給水排水,2022,38(11):56.
WUYuan-yuan,Mark van Loosdrecht,HAOXiao-di,et al.A Pilot Study on Stability of Aerobic Granular Sludge at Low Temperature[J].China Water & Wastewater,2022,38(9):56.
[9]張冰,鄔蓮,黃書昌,等.運行模式及C/N對強化AGS短程硝化反硝化的影響[J].中國給水排水,2023,39(1):9.
ZHANGBing,WULian,HUANGShu-chang,et al.Effect of Different Operational Modes and C/N Ratios on Enhanced Partial Nitrification and Denitrification of AGS[J].China Water & Wastewater,2023,39(9):9.
[10]張帥.SBR耦合水力旋流器培養(yǎng)好氧顆粒污泥的研究[J].中國給水排水,2023,39(9):72.
ZHANGShuai.Sequencing Batch Reactor Coupled Hydrocyclone for Cultivation of Aerobic Granular Sludge[J].China Water & Wastewater,2023,39(9):72.
更新日期/Last Update: 2025-05-01
[1]鄧永春,曹江玲,吳沛嶸,等.缺氧條件對低碳氮比廢水好氧顆粒污泥穩(wěn)定性的影響[J].中國給水排水,2025,41(9):8-16.
DENGYong-chun,CAOJiang-ling,WUPei-rong,et al.Impact of Mixing Effect in Pre-anoxic Phase on Stability of Aerobic Granular Sludge in Treating Wastewater with Low Carbon to Nitrogen Ratio[J].China Water & Wastewater,2025,41(9):8-16.
點擊復制
DENGYong-chun,CAOJiang-ling,WUPei-rong,et al.Impact of Mixing Effect in Pre-anoxic Phase on Stability of Aerobic Granular Sludge in Treating Wastewater with Low Carbon to Nitrogen Ratio[J].China Water & Wastewater,2025,41(9):8-16.
缺氧條件對低碳氮比廢水好氧顆粒污泥穩(wěn)定性的影響
中國給水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第41卷 期數(shù): 2025年第9期 頁碼: 8-16 欄目: 出版日期: 2025-05-01
- Title:
- Impact of Mixing Effect in Pre-anoxic Phase on Stability of Aerobic Granular Sludge in Treating Wastewater with Low Carbon to Nitrogen Ratio
- Keywords:
- aerobic granular sludge; low carbon to nitrogen ratio wastewater; anoxic phase; external circulation; stability
- 摘要:
- 好氧顆粒污泥穩(wěn)定性低是阻礙其應用的主要問題。為揭示好氧顆粒污泥系統(tǒng)前置缺氧段混合效果對好氧顆粒穩(wěn)定性的影響，在SBR反應器中接種冷藏6個月的好氧顆粒污泥，將碳氮負荷（COD/NH4+-N）從200/40 mg/L提升至600/150 mg/L，通過施加和不施加外循環(huán)操作改變?nèi)毖醵位旌闲Ч�，考察好氧顆粒污泥系統(tǒng)處理性能、顆粒穩(wěn)定性及微生物種群結(jié)構(gòu)變化。結(jié)果表明，接種的好氧顆粒污泥恢復活性后，當碳氮負荷為400/50 mg/L時未開啟外循環(huán)操作，系統(tǒng)對COD、NH4+-N和TN的去除率分別為95%、99%和20%；當碳氮負荷升至400/80和400/100 mg/L時開啟外循環(huán)操作，雖然好氧顆粒污泥受反硝化氣態(tài)氮沖擊導致沉淀性能變差，SVI30在50~150 mL/g之間波動，系統(tǒng)對COD和NH4+-N的去除率仍能夠分別保持在95%和99%，但是TN去除率提升至50%；而當碳氮負荷升至600/150 mg/L時再次關(guān)閉外循環(huán)操作后，好氧顆粒結(jié)構(gòu)變得疏松分散，平均粒徑增大至791 μm，SVI30惡化為175 mL/g，雖然COD去除率仍能保持在95%左右，但NH4+-N和TN去除率分別降低至50%和6%。高通量測序分析表明，缺氧段施加外循環(huán)操作后，好氧顆粒微生物多樣性和豐富度增加，主要優(yōu)勢菌種為反硝化菌，主要包括Thauera和 Rhodobacter。在處理低碳氮比廢水時在缺氧段施加外循環(huán)操作，能夠通過增強混合效果提高系統(tǒng)反硝化性能，富集大量反硝化菌，從而增強好氧顆粒污泥穩(wěn)定性。
- Abstract:
- Low stability of aerobic granular sludge(AGS) in long-term operation is the main problem hindering its further application in practice. To investigate the impact of the mixing effect in pre- anoxic phase on the stability of AGS, a sequencing batch reactor (SBR) inoculated with AGS refrigerated for 6 months was set up with increased carbon and nitrogen load (C/N) from 200/40 mg/L to 600/150 mg/L in this study. The mixing effect of the pre-anoxic phase was adjusted by adding and not adding an external circulation operation. The properties of the AGS, such as the performance, stability, and microbial community structure, were examined. The results showed that when the C/N was 400/50 mg/L with no external circulation, the removal rate of COD, NH4+-N and TN were 95%, 99%, and 20%, respectively, after the seeded AGS revived. When the C/N was increased to 400/80 mg/L and 400/100 mg/L with external circulation, COD and NH4+-N removal rate could still maintain at 95% and 99%, respectively, but the TN removal rate greatly increased to 50%, although the settling ability of the AGS deteriorated due to the mass production of gaseous nitrogen from denitrification, with SVI30 fluctuating between 50 mL/g and 150 mL/g. However, when the C/N was increased to 600/150 mg/L with no external circulation, NH4+-N and TN removal rate decreased to 50% and 6%, respectively, although COD removal rate could still maintain at about 95%. At the same time, the physical structure of AGS became loose and dispersed with the average particle size increased to 791 μm and SVI30 deteriorated to 175 mL/g. High-throughput sequencing analysis showed that the microbial diversity and richness of aerobic particles increased with the external circulation in the anoxic phase, and the main genus were denitrifying bacteria, mainly including Thauera and Rhodobacter. These findings demonstrated that the external circulation operation in anoxic phase can improve the denitrification performance of AGS system and enrich a large number of denitrifying bacteria by enhancing the mixing effect, thereby enhancing its stability .
相似文獻/References:
[1]張瑩,王昌穩(wěn),李軍,等.投加微粉強化低濃度生活污水活性污泥好氧顆粒化[J].中國給水排水,2018,34(21):12.
ZHANG Ying,WANG Chang wen,LI Jun,et al.Strengthening Aerobic Granulation of Activated Sludge by Adding Micro Powder in Low Concentration Sewage Treatment[J].China Water & Wastewater,2018,34(9):12.
[2]趙錫鋒,李興強,李軍.好氧顆粒污泥技術(shù)中試研究及應用進展[J].中國給水排水,2020,36(8):30.
[3]白靜,王現(xiàn)麗,李智,等.好氧顆粒污泥處理高濃度有機廢水的研究進展[J].中國給水排水,2020,36(8):38.
[4]吳越,趙傳峰,孫法文,等.雙區(qū)沉淀池用于連續(xù)流好氧顆粒污泥工藝的可行性[J].中國給水排水,2020,36(19):9.
WU Yue,ZHAO Chuan-feng,SUN Fa-wen,et al.Feasibility of Aerobic Granular Sludge Formation in Continuous Flow Reactor Based on Two-zone Sedimentation Tank[J].China Water & Wastewater,2020,36(9):9.
[5]郝桂珍,范宇成,徐利,等.低溫下好氧顆粒污泥強化造粒研究[J].中國給水排水,2020,36(19):32.
HAO Gui-zhen,FAN Yu-cheng,XU Li,et al.Enhanced Granulation of Aerobic Granular Sludge at Low Temperature[J].China Water & Wastewater,2020,36(9):32.
[6]宋欣,孫士權(quán),商光琦,等.氮硫比對好氧顆粒污泥特性影響及其脫氮除硫效果[J].中國給水排水,2021,37(19):91.
SONG Xin,SUN Shi-quan,SHANG Guang-qi,et al.Effect of Nitrogen to Sulfur Ratio on Characteristics of Aerobic Granular Sludge and Its Nitrogen and Sulfur Removal Performance[J].China Water & Wastewater,2021,37(9):91.
[7]王佳璇,李政陽,劉喆,等.高效降解喹啉好氧顆粒污泥的快速形成及性能研究[J].中國給水排水,2022,38(9):8.
WANGJia-xuan,LIZheng-yang,LIUZhe,et al.Rapid Formation and Performance of Aerobic Granular Sludge for Efficient Quinoline Degradation[J].China Water & Wastewater,2022,38(9):8.
[8]吳遠遠,Mark van Loosdrecht,郝曉地,等.好氧顆粒污泥低溫穩(wěn)定性中試研究[J].中國給水排水,2022,38(11):56.
WUYuan-yuan,Mark van Loosdrecht,HAOXiao-di,et al.A Pilot Study on Stability of Aerobic Granular Sludge at Low Temperature[J].China Water & Wastewater,2022,38(9):56.
[9]張冰,鄔蓮,黃書昌,等.運行模式及C/N對強化AGS短程硝化反硝化的影響[J].中國給水排水,2023,39(1):9.
ZHANGBing,WULian,HUANGShu-chang,et al.Effect of Different Operational Modes and C/N Ratios on Enhanced Partial Nitrification and Denitrification of AGS[J].China Water & Wastewater,2023,39(9):9.
[10]張帥.SBR耦合水力旋流器培養(yǎng)好氧顆粒污泥的研究[J].中國給水排水,2023,39(9):72.
ZHANGShuai.Sequencing Batch Reactor Coupled Hydrocyclone for Cultivation of Aerobic Granular Sludge[J].China Water & Wastewater,2023,39(9):72.
更新日期/Last Update: 2025-05-01
