Water Science and Technology最新文献_第4页

Antimicrobial activity of immobilized mycocins in sodium alginate on fecal coliforms. 海藻酸钠固定化菌素对粪便大肠菌的抑菌活性。

IF 2.5 4区环境科学与生态学

Water Science and Technology Pub Date : 2025-03-01 Epub Date: 2025-02-26 DOI: 10.2166/wst.2025.028

Cristiane Persel, Jessica Cassia da Silva, Caroline Simon, Mateus Foltz Delabeneta, Daniele Schaab Boff Junges, Bruna Larissa Nascimento, Michele Ana Flores Chaves, Rita de Cássia Garcia Simão, Claudete Rodrigues Paula, Rinaldo Ferreira Gandra

{"title":"Antimicrobial activity of immobilized mycocins in sodium alginate on fecal coliforms.","authors":"Cristiane Persel, Jessica Cassia da Silva, Caroline Simon, Mateus Foltz Delabeneta, Daniele Schaab Boff Junges, Bruna Larissa Nascimento, Michele Ana Flores Chaves, Rita de Cássia Garcia Simão, Claudete Rodrigues Paula, Rinaldo Ferreira Gandra","doi":"10.2166/wst.2025.028","DOIUrl":"10.2166/wst.2025.028","url":null,"abstract":"Wickerhamomyces anomalus is a yeast-producing mycocins and has antimicrobial action. Escherichia coli is the predominant bacterium of the coliforms group; its presence in water indicates fecal contamination, being used as an indicator of microbiological analyses. The immobilization of cells and substances demonstrates great potential for biotechnological applications. This work aimed to assess the activity of free and immobilized mycocins, obtained from W. anomalus, against E. coli strains and fecal coliforms. The mycocins were immobilized in different concentrations of sodium alginate and calcium chloride and tested to verify the antimicrobial activity against the E. coli strain and fecal coliforms present in water samples. The mycocins were able to inhibit all strains used in broth microdilution. Considering the problem of multidrug-resistant antibiotic strains and the need for new alternatives to improve the quality of water and sewage effluents, these results demonstrate a possible application as an alternative to an antimicrobial agent.","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"91 5","pages":"581-591"},"PeriodicalIF":2.5,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143634645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization of detention ponds for urban stormwater runoff and pollution control in multiple catchments system with analytical probabilistic models and particle swarm. 基于解析概率模型和粒子群的多集水区城市雨水径流和污染控制截流池优化。

IF 2.5 4区环境科学与生态学

Water Science and Technology Pub Date : 2025-03-01 Epub Date: 2025-02-21 DOI: 10.2166/wst.2025.024

Ali Aldrees, Salisu Dan'azumi, Sani I Abba

{"title":"Optimization of detention ponds for urban stormwater runoff and pollution control in multiple catchments system with analytical probabilistic models and particle swarm.","authors":"Ali Aldrees, Salisu Dan'azumi, Sani I Abba","doi":"10.2166/wst.2025.024","DOIUrl":"10.2166/wst.2025.024","url":null,"abstract":"Guidelines are often set at urban catchments' outfalls to avert river pollution, where stormwater is discharged into the river. Analytical probabilistic models (APMs) in conjunction with particle swarm optimization (PSO) were used to design a detention pond system at three sub-catchments of a watershed that discharge into a common point. The objective is to design multiple ponds upstream such that the pollution control target downstream is met at the minimum cost. Given the cost of purchasing land plus the cost of construction/maintenance of the ponds in the sub-catchments, the result shows that pond depths of 2.0 m in all three sub-catchments give the least total cost. A runoff control of 88, 94, and 90%, and pollution control of 59, 45, and 66% were obtained in Ponds 1, 2, and 3, respectively, while satisfying the overall watershed's pollution control target. A sensitivity analysis was conducted by varying the land costs and different performances were obtained. The APM/PSO model can search for the optimum design parameters that satisfy upstream runoff control performances and the overall pollution control target downstream. The advantage of the approach is that it can be applied to any combination of ponds in a larger watershed.","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"91 5","pages":"592-608"},"PeriodicalIF":2.5,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143634617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Water Sci Technol 2025; wst2025007. Removal of phenolic compounds from olive mill wastewater (OMW) by tailoring the surface of activated carbon under acidic and basic conditions, Abeer F. Al Bawab, M. A. Abu-Dalo, H. Kanaan, N. Al-Rawashdeh, F. Odeh, https://doi.org/10.2166/wst.2025.007. 水科学技术2025；wst2025007。陈晓明，陈晓明，陈晓明，等。酸性和碱性条件下活性炭表面改性对橄榄厂废水中酚类化合物的去除研究[j]， https://doi.org/10.2166/wst.2025.007。

IF 2.5 4区环境科学与生态学

Water Science and Technology Pub Date : 2025-03-01 DOI: 10.2166/wst.2025.029

引用次数: 0

Unlocking the potential of sidestream EBPR: exploring the coexistence of PAO, GAO and DGAO for effective phosphorus and nitrogen removal. 释放侧流EBPR的潜力：探索PAO、GAO和DGAO共存的有效除磷除氮效果。

IF 2.5 4区环境科学与生态学

Water Science and Technology Pub Date : 2025-03-01 Epub Date: 2025-03-06 DOI: 10.2166/wst.2025.038

Fabrizio Sabba, McKenna Farmer, Patrick Dunlap, Cindy Qin, Joseph Kozak, James Barnard, George Wells, Leon Downing

{"title":"Unlocking the potential of sidestream EBPR: exploring the coexistence of PAO, GAO and DGAO for effective phosphorus and nitrogen removal.","authors":"Fabrizio Sabba, McKenna Farmer, Patrick Dunlap, Cindy Qin, Joseph Kozak, James Barnard, George Wells, Leon Downing","doi":"10.2166/wst.2025.038","DOIUrl":"10.2166/wst.2025.038","url":null,"abstract":"Wastewater treatment facilities use enhanced biological phosphorus removal (EBPR) to meet discharge quality limits. However, the EBPR process can experience upsets due to a lack of influent carbon or inadequate anaerobic zones. By using a sidestream EBPR (S2EBPR) process, carbon can be generated internally through fermentation processes and a higher anaerobic mass fraction can be attained in smaller volumes. This study investigates nutrient removal and microbial community trends in a full-scale S2EBPR demonstration at the Calumet Water Reclamation Plant. The study aims to improve a process model of the system by better representing the activity of glycogen-accumulating organisms (GAO) and potential competitors of phosphorus-accumulating organisms (PAO), which were found in high abundance in this study. Modifying anaerobic hydrolysis, GAO glycogen storage and ORP activity parameters resulted in model prediction improvements of approximately 5% for nitrate and nitrite and 10-60% for phosphorus. The study also uses shotgun metagenomic sequencing to profile denitrification pathways of PAO and GAO. It shows that denitrifying GAO may contribute to nitric oxide reduction to a greater degree than denitrifying PAO. This study improves process modeling predictions for S2EBPR and highlights the potential role of denitrifying PAO and GAO in combined phosphorus and nitrogen removal in S2EBPR.","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"91 5","pages":"469-481"},"PeriodicalIF":2.5,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143634675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Innovative pre-treatments for reverse osmosis to reclaim water from biotech and municipal wastewater for the industrial symbiosis in Kalundborg. 创新的反渗透预处理，从生物技术和城市废水中回收水，用于卡伦堡的工业共生。

IF 2.5 4区环境科学与生态学

Water Science and Technology Pub Date : 2025-03-01 Epub Date: 2025-02-27 DOI: 10.2166/wst.2025.025

Jeannette Jährig, Anne Kleyböcker, Fabian Kraus, Line Rodenkam Melchiorsen, Hasse Milter, Preben Thisgaard, Leo Vredenbregt, Ulf Miehe

{"title":"Innovative pre-treatments for reverse osmosis to reclaim water from biotech and municipal wastewater for the industrial symbiosis in Kalundborg.","authors":"Jeannette Jährig, Anne Kleyböcker, Fabian Kraus, Line Rodenkam Melchiorsen, Hasse Milter, Preben Thisgaard, Leo Vredenbregt, Ulf Miehe","doi":"10.2166/wst.2025.025","DOIUrl":"10.2166/wst.2025.025","url":null,"abstract":"The challenge of water reclamation using membranes in this study was the quite unique wastewater composition resulting from a high share of biotech wastewater. The high content of organic matter and high concentrations of calcium, bicarbonate, and sulphate were considered as challenging for membrane processes. Consequently, an innovative ultra-tight ultrafiltration (u-t UF) membrane was developed and tested on-site at pilot scale. In comparison, a conventional UF and an open nanofiltration (NF) were piloted. The aim was to find the best pre-treatment option for reverse osmosis (RO) to reduce fouling and scaling and produce fit-for-purpose water; for example, cooling. Overall, the quality of the currently used water source was surpassed by the pilot plant. Only a standard post-treatment of the RO permeate was necessary for stabilisation. Results indicated that denser membranes only minimally reduced fouling of RO. An assessment comparing the treatment trains in a life cycle assessment using the data collected from the pilot operation (UF/NF operating settings, RO plant performance, and the design of multi-stage industrial scale RO) revealed lower greenhouse gas emissions compared to seawater desalination. However, if the RO brine treatment becomes mandatory, the greenhouse gas emissions from water reclamation and supply will be higher than those from freshwater supply.","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"91 6","pages":"698-713"},"PeriodicalIF":2.5,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143744042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Differential overload simulation of condensate and housekeeping rendering wastewater for nutrient removal. 冷凝水和清洁处理废水的微分过载模拟，以去除营养物质。

IF 2.5 4区环境科学与生态学

Water Science and Technology Pub Date : 2025-03-01 Epub Date: 2025-03-05 DOI: 10.2166/wst.2025.037

Elias Daniel David Nova-Burgos, Diana Catalina Rodríguez-Loaiza, Julio Cesar Saldarriaga-Molina

{"title":"Differential overload simulation of condensate and housekeeping rendering wastewater for nutrient removal.","authors":"Elias Daniel David Nova-Burgos, Diana Catalina Rodríguez-Loaiza, Julio Cesar Saldarriaga-Molina","doi":"10.2166/wst.2025.037","DOIUrl":"10.2166/wst.2025.037","url":null,"abstract":"The meat rendering process transforms waste from the meat industry to valuable materials as animal feed supplements. During the rendering process, large amounts of condensate and housekeeping wastewater (CWW and HKWW), solids and greenhouse gases are released into the environment imposing a huge pollution threat. Rendering condensate wastewater also causes many issues that commonly affect biological treatment processes such as pH inhibition, nutrient deficit and temperature. Therefore, the main objective of this work was to simulate the nutrient removal from a sequencing batch reactor (SBR) through the differential nitrogen overload of CWW. With aid of simulation, results found that the current SBR system does not remove carbon and nitrogen as much as other biological systems. This is due to low biodegradation of chemical oxygen demand (COD), the high content of inert particulate carbon (XI), identified in the fractionation of HKWW, and the toxic and inhibitory effect of ammonium present in CWW. When the system is overloaded with nitrogen from CWW there is little removal of biochemical oxygen demand (BOD), ordinary heterotrophic organisms (OHO) outnumber autotrophic nitrifying organisms (ANO) and ammonium toxicity occurs, all contributing to a failure to remove nutrients.","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"91 6","pages":"731-745"},"PeriodicalIF":2.5,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143744040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Regional joint regulation mode for flood control in plain cities: addressing extensive heavy rainfall. 平原城市防洪的区域联合调控模式：应对大范围强降雨。

IF 2.5 4区环境科学与生态学

Water Science and Technology Pub Date : 2025-03-01 Epub Date: 2025-02-26 DOI: 10.2166/wst.2025.027

Qianting Liu, Zhiming Zhang, Yang Liangrui, Wang Zhe

{"title":"Regional joint regulation mode for flood control in plain cities: addressing extensive heavy rainfall.","authors":"Qianting Liu, Zhiming Zhang, Yang Liangrui, Wang Zhe","doi":"10.2166/wst.2025.027","DOIUrl":"10.2166/wst.2025.027","url":null,"abstract":"Establishing a coordinated flood storage and drainage joint regulation mode for various cities can effectively mitigate the disaster risk associated with extensive heavy rainfall. This study introduces a novel concept of joint regulation of urban agglomeration based on watershed features and spatial topological norms. From the perspective of urban agglomeration, three new modes are proposed to guide flood storage and drainage in plain cities: (1) storing before discharging, (2) discharging before storing, and (3) discharging while storing. The modes aim to facilitate coordination among neighboring cities in an urban agglomeration and enhance the temporal and spatial coordination of flood storage and drainage. Multi-layer tree rules are established to allocate modes to cities based on the spatial characteristics of flood risk, storage, and drainage performance. The fact case proves that the mode has certain practical applicability. There are 35, 151, and 30 plain cities that use DS, DWS, and SD modes, respectively, out of 221 total. Most urban agglomerations employ at least two different joint regulation modes. The multi-layer tree rules for mode allocation presented in this study provide theoretical guidelines for flood management in plain cities across various regions.","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"91 6","pages":"714-730"},"PeriodicalIF":2.5,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143744048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Treatment of the spin cycle effluent using electrocoagulation and granular activated carbon. 电絮凝和颗粒活性炭处理自旋循环出水。

IF 2.5 4区环境科学与生态学

Water Science and Technology Pub Date : 2025-03-01 Epub Date: 2025-02-19 DOI: 10.2166/wst.2025.002

Shamik Prabhu Chodnekar, Srikanth Mutnuri

{"title":"Treatment of the spin cycle effluent using electrocoagulation and granular activated carbon.","authors":"Shamik Prabhu Chodnekar, Srikanth Mutnuri","doi":"10.2166/wst.2025.002","DOIUrl":"10.2166/wst.2025.002","url":null,"abstract":"Given the rising demand for freshwater and its limited availability, treating and reusing household wastewater is becoming increasingly crucial. One way to accomplish this is to treat and reuse spin cycle effluent from washing machines. The spin cycle, being the last washing cycle, yields comparatively cleaner effluent, necessitating less intensive treatment, rendering it an attractive target for treatment and reuse. This study presents the first instance of characterizing and treating this effluent. The average values for spin cycle effluent for chemical oxygen demand, biochemical oxygen demand, pH, conductivity, turbidity, total nitrogen, and orthophosphate were found to be 241.8 ± 88.4 ppm, 36.9 ± 14.3 ppm, 7.2 ± 0.9, 223.4 ± 46.7 μS/cm, 85.9 ± 20.1 NTU, 7.2 ± 3.1 ppm, and 4.6 ± 1.7 ppm, respectively. The treatment study was conducted at a 2-L scale using aluminum electrodes in a bipolar setup and utilized three liquid and three solid detergents. The treatment process consisted of sequential utilization of electrocoagulation flocculation and granular activated carbon which resulted in excellent treatment, with a 92.7 ± 3.6% reduction in chemical oxygen demand, an 87.2 ± 9.7% reduction in total nitrogen, a 91.4 ± 2.9% reduction in orthophosphate, and a 93.3 ± 4.7% reduction in turbidity. Utilizing the reuse potential of the spin cycle effluent with this process will allow households to actively contribute to sustainable water management practices.","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"91 5","pages":"482-500"},"PeriodicalIF":2.5,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143634670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Water level estimation in sewage pipes using texture-based methods and machine learning algorithms. 利用基于纹理的方法和机器学习算法估算污水管道中的水位。

IF 2.5 4区环境科学与生态学

Water Science and Technology Pub Date : 2025-03-01 Epub Date: 2025-03-10 DOI: 10.2166/wst.2025.040

K Bhase, J Myrans, R Everson

{"title":"Water level estimation in sewage pipes using texture-based methods and machine learning algorithms.","authors":"K Bhase, J Myrans, R Everson","doi":"10.2166/wst.2025.040","DOIUrl":"10.2166/wst.2025.040","url":null,"abstract":"Water companies use closed-circuit television (CCTV) to inspect the condition of sewage pipes. The reports generated by surveyors help companies to plan for the maintenance and rehabilitation of sewage pipes. A surveyor needs to record the water level at the start of every survey and any point of significant change in level. Recording the water level provides insight into the cross-section area being surveyed, highlighting any underlying issues with the pipe. An abrupt change in water level can indicate a poor gradient of pipe, a build-up of debris, or even hidden structural damage. However, manually recorded water levels are often unreliable due to factors like surveyor experience, the camera angle, light conditions, and pipe shape. In this paper, we have discussed and compared six methods for the automated estimation of water levels in sewage pipes. Using the segmentation masks extracted with DeepLabv3 as inputs into an Extra Trees regressor achieved the most accurate results. To perform an objective comparison of the techniques, mean absolute error (MAE), root mean square error (RMSE), and max error were used as evaluation metrics.","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"91 6","pages":"746-756"},"PeriodicalIF":2.5,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143744049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Polyacrylic acid-based nanoplastics used in cosmetics: a study of biodegradability and effects on heterotrophic and nitrifying microorganisms in the activated sludge. 化妆品用聚丙烯酸基纳米塑料：可降解性及其对活性污泥中异养和硝化微生物影响的研究。

IF 2.5 4区环境科学与生态学

Water Science and Technology Pub Date : 2025-03-01 DOI: 10.2166/wst.2025.034

Bernadette Mederer, Janja Novak, Ula Putar, Luka Škrlep, Mirco Bundschuh, Gabriela Kalčíková

{"title":"Polyacrylic acid-based nanoplastics used in cosmetics: a study of biodegradability and effects on heterotrophic and nitrifying microorganisms in the activated sludge.","authors":"Bernadette Mederer, Janja Novak, Ula Putar, Luka Škrlep, Mirco Bundschuh, Gabriela Kalčíková","doi":"10.2166/wst.2025.034","DOIUrl":"10.2166/wst.2025.034","url":null,"abstract":"Nanoplastics, commonly used in cosmetics, enter wastewater systems and interact with activated sludge, yet their effects on microorganisms, essential for wastewater treatment, remain poorly understood. The aim of this study was to investigate the effects of polyacrylic acid-based nanoplastics (PANPs) on microorganisms in activated sludge. The PANPs were characterized in terms of their material composition, size, zeta potential, and additive content. Acute (30 min) and prolonged (up to 6 h) toxicity tests were performed to evaluate negative effects on heterotrophic and nitrifying microorganisms in activated sludge. In addition, ready and inherent biodegradability tests were performed to assess their degradation in the environment and within wastewater treatment plants, respectively. The results showed a significant acute inhibition of heterotrophic and nitrifying activity (up to 55 and 72%, respectively) at the highest concentration tested (100 mg/L, 30 min), primarily attributed to the presence of 1-dodecanol detected in the PANPs. This effect decreased with prolonged exposure, likely due to the volatilization of 1-dodecanol. Nevertheless, the PANPs were found to be non-biodegradable in both the ready and inherent biodegradability tests. Although PANPs do not appear to pose a long-term threat to the activated sludge, their persistence in the environment raises concerns about possible accumulation.","PeriodicalId":23653,"journal":{"name":"Water Science and Technology","volume":"91 5","pages":"626-638"},"PeriodicalIF":2.5,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143634624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0