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Cultivation and Resistance to Impact Load Analysis of Different Types of Anaerobic Granular Sludge During the Treatment of Simulated Wastewater
Environmental Engineering Science ( IF 1.8 ) Pub Date : 2022-07-05 , DOI: 10.1089/ees.2021.0251 Yibo Wang 1, 2 , Feng Liu 2 , Ruihua Mu 1 , Chen Bai 1 , Feng Gao 3
Environmental Engineering Science ( IF 1.8 ) Pub Date : 2022-07-05 , DOI: 10.1089/ees.2021.0251 Yibo Wang 1, 2 , Feng Liu 2 , Ruihua Mu 1 , Chen Bai 1 , Feng Gao 3
Affiliation
In this study, polyvinyl alcohol (PVA), granular active carbon (AC), and Ca2+/polyacrylamide (PAM) were used to enhance granulation in three upflow anaerobic sludge blanket (UASB) reactors, UASB-PVA, UASB-AC, and UASB-PAM. The experimental results showed that the start-up of the UASB-PVA reactor was the fastest, UASB-PVA, UASB-AC, and UASB-PAM took 44, 48 and 54 d, respectively, and the performance of UASB-PVA was relatively stable and less fluctuating. When organic load was up to ∼13 kg chemical oxygen demand (COD)/(m3·d), biogas production of PVA sludge, AC sludge, and PAM sludge were 19.10, 12.32, and 15.13 L/d, respectively, and the biogas production of the three reactors was: UASB-PVA>UASB-PAM>UASB-AC. After 128 days of operation, the granulation effect of the sludge from the three reactors was ranked from high to low in the following order: UASB-PVA>UASB-AC>UASB-PAM. In the process of load shock, the COD removal efficiency (CODRE) and 
-N removal efficiency (
-NRE) of the UASB-PVA was the most stable under different load impacts, the standard deviation of CODRE and 
-NRE were 2.7% and 8.7%, respectively. The total fluorescence intensity of dissolved organic matter in the effluent of UASB-PVA, AC, and PAM were 2.5 × 105 – 5.5 × 105, 1.8 × 105 – 13.2 × 105, and 1.5 × 105 – 11.5 × 105, respectively. The change range of the total fluorescence intensity of UASB-PVA was the minimal under load impact. The UASB-PVA can play an important role in the upgrading of sewage treatment plants.
中文翻译：
模拟废水处理过程中不同类型厌氧颗粒污泥的培养及抗冲击负荷分析
在本研究中，聚乙烯醇 (PVA)、粒状活性炭 (AC) 和 Ca 2+ /聚丙烯酰胺 (PAM) 用于增强三个上流式厌氧污泥床 (UASB) 反应器（UASB-PVA、UASB-AC、和 UASB-PAM。实验结果表明，UASB-PVA反应堆的启动最快，UASB-PVA、UASB-AC和UASB-PAM分别用了44、48和54 d，UASB-PVA的性能相对较稳定且波动较小。当有机负荷高达 ∼13 kg 化学需氧量 (COD)/(m 3·d)、PVA污泥、AC污泥和PAM污泥的产沼气量分别为19.10、12.32和15.13 L/d，三个反应器的产气量分别为：UASB-PVA>UASB-PAM>UASB-AC . 运行128天后，三个反应器污泥的造粒效果从高到低依次为：UASB-PVA>UASB-AC>UASB-PAM。在负载冲击过程中，COD去除效率（CODRE）和-N 去除效率 (-NRE) UASB-PVA 在不同负载冲击下最稳定， CODERE 的标准差和-NRE 分别为 2.7% 和 8.7%。UASB-PVA、AC 和 PAM 出水中溶解有机物的总荧光强度分别为 2.5 × 10 5 – 5.5 × 10 5、1.8 × 10 5 – 13.2 × 10 5和 1.5 × 10 5 – 11.5 × 10 5，分别。UASB-PVA总荧光强度的变化幅度在负载冲击下最小。UASB-PVA可以在污水处理厂的升级改造中发挥重要作用。
更新日期：2022-07-05
-N removal efficiency (-NRE) of the UASB-PVA was the most stable under different load impacts, the standard deviation of CODRE and -NRE were 2.7% and 8.7%, respectively. The total fluorescence intensity of dissolved organic matter in the effluent of UASB-PVA, AC, and PAM were 2.5 × 105 – 5.5 × 105, 1.8 × 105 – 13.2 × 105, and 1.5 × 105 – 11.5 × 105, respectively. The change range of the total fluorescence intensity of UASB-PVA was the minimal under load impact. The UASB-PVA can play an important role in the upgrading of sewage treatment plants.
中文翻译：
模拟废水处理过程中不同类型厌氧颗粒污泥的培养及抗冲击负荷分析
在本研究中，聚乙烯醇 (PVA)、粒状活性炭 (AC) 和 Ca 2+ /聚丙烯酰胺 (PAM) 用于增强三个上流式厌氧污泥床 (UASB) 反应器（UASB-PVA、UASB-AC、和 UASB-PAM。实验结果表明，UASB-PVA反应堆的启动最快，UASB-PVA、UASB-AC和UASB-PAM分别用了44、48和54 d，UASB-PVA的性能相对较稳定且波动较小。当有机负荷高达 ∼13 kg 化学需氧量 (COD)/(m 3·d)、PVA污泥、AC污泥和PAM污泥的产沼气量分别为19.10、12.32和15.13 L/d，三个反应器的产气量分别为：UASB-PVA>UASB-PAM>UASB-AC . 运行128天后，三个反应器污泥的造粒效果从高到低依次为：UASB-PVA>UASB-AC>UASB-PAM。在负载冲击过程中，COD去除效率（CODRE）和
-N 去除效率 (-NRE) UASB-PVA 在不同负载冲击下最稳定， CODERE 的标准差和-NRE 分别为 2.7% 和 8.7%。UASB-PVA、AC 和 PAM 出水中溶解有机物的总荧光强度分别为 2.5 × 10 5 – 5.5 × 10 5、1.8 × 10 5 – 13.2 × 10 5和 1.5 × 10 5 – 11.5 × 10 5，分别。UASB-PVA总荧光强度的变化幅度在负载冲击下最小。UASB-PVA可以在污水处理厂的升级改造中发挥重要作用。
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