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the thresholds of nitrogen/phosphorus concentration and hydraulic retention time for bloom control in reclaimedwater landscape

《环境科学与工程前沿（英文）》 2022年 第16卷 第10期 doi: 10.1007/s11783-022-1564-1

摘要：

● A new model for bloom control in open land scape water was constructed.

关键词： Reclaimed water landscape     Algal bloom     Nitrogen and phosphorus     Hydraulic retention time     Threshold     Control model    

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chlorine process on microbial community structure, typical pathogens, and antibiotic resistance genes in reclaimedwater

《环境科学与工程前沿（英文）》 2022年 第16卷 第8期 doi: 10.1007/s11783-022-1521-z

摘要：

• UV/chlorine can effectively remove VBNC pathogens, ARGs and MGEs in reclaimed water.

关键词： UV/chlorine process     Pathogen     Antibiotic resistance genes     High-throughput qPCR     Reclaimed water    

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Aerosol exposure assessment during reclaimed water utilization in China and risk evaluation in case of

《环境科学与工程前沿（英文）》 2022年 第16卷 第7期 doi: 10.1007/s11783-021-1516-1

摘要：

• The Chinese population exposure habits were surveyed.

关键词： Legionella     QMRA     Reclaimed water     Aerosol     Water reuse    

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Hydraulic model for multi-sources reclaimed water pipe network based on EPANET and its applications in

JIA Haifeng, WEI Wei, XIN Kunlun

《环境科学与工程前沿（英文）》 2008年 第2卷 第1期   页码 57-62 doi: 10.1007/s11783-008-0013-0

摘要： Water shortage is one of the major water related problems for many cities in the world. The planning for utilization of reclaimed water has been or would be drafted in these cities. For using the reclaimed water soundly, Beijing planned to build a large scale reclaimed water pipe networks with multi-sources. In order to support the plan, the integrated hydraulic model of planning pipe network was developed based on EPANET supported by geographic information system (GIS). The complicated pipe network was divided into four weak conjunction subzones according to the distribution of reclaimed water plants and the elevation. It could provide a better solution for the problem of overhigh pressure in several regions of the network. Through the scenarios analysis in different subzones, some of the initial diameter of pipes in the network was adjusted. At last the pipe network planning scheme of reclaimed water was proposed. The proposed planning scheme could reach the balances between reclaimed water requirements and reclaimed water supplies, and provided a scientific basis for the reclaimed water utilization in Beijing. Now the scheme had been adopted by Beijing municipal government.

关键词： diameter     Beijing municipal     reclaimed     planning     elevation    

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Factors influencing water quality indices in a typical urban river originated with reclaimed water

Jiao Zhang, Zhen Wei, Haifeng Jia, Xia Huang

《环境科学与工程前沿（英文）》 2017年 第11卷 第4期 doi: 10.1007/s11783-017-0943-5

摘要： The water quality in a typical urban river segment originated with reclaimed water in Beijing was monitored for two years to investigate the evolution of water quality along the river, and statistical analysis was applied to determine factors influencing water quality of such river recharged by reclaimed water. It was found that no significant change in pollutant concentrations (including COD, NH -N, TN and TP) was observed during this time, and their average values were close to those of the original reclaimed water. However, turbidity and algal contents fluctuated temporally in the direction of river flow. Statistical analysis showed that turbidity was strongly positively correlated with algal contents for flow rate<0.1 m·s , whereas it was strongly positively correlated with both algal contents and TOC for flow rate>0.1 m·s . It was observed that diatom was the absolute predominant phyla with as the major species. In terms of algal bloom control, the specific growth rate of algae was strongly correlated to temperature, and was influenced by flow rate as well. Compared with two other rivers originated with reclaimed water and one originated with natural water, the Shannon–Wiener index in the objective river was the lowest, with values between 0.7 and 1.6, indicating a high risk for algal bloom. Statistics showed that Shannon–Wiener index was strongly negatively correlated to nutrient salts and cations.

关键词： Reclaimed water     Urban river     Turbidity     Algae     Flow rate    

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Fate and risk assessment of emerging contaminants in reclaimed water production processes

《环境科学与工程前沿（英文）》 2021年 第15卷 第5期 doi: 10.1007/s11783-021-1392-8

摘要：

• PPCPs had the highest removal efficiency in A2O combined with MBR process (86.8%).

关键词： Trace organic pollution     Antibiotic resistance genes     Reclaimed wastewater     Sludge     Risk assessment     Mass load    

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Influence of reclaimed water discharge on the dissemination and relationships of sulfonamide, sulfonamide

Ning Zhang, Xiang Liu, Rui Liu, Tao Zhang, Miao Li, Zhuoran Zhang, Zitao Qu, Ziting Yuan, Hechun Yu

《环境科学与工程前沿（英文）》 2019年 第13卷 第1期 doi: 10.1007/s11783-019-1099-2

摘要：

Reclaimed water threatens the ecological safety of the Chaobai River.

SMX, TMP, and SDZ were the first three abundant antibiotics in the research area.

SRGs and intI1 were widespread with high abundance after reclaimed water recharge.

The SRGs values followed the sequence: Summer>autumn>spring>winter.

Strong correlations were detected between SRGs and environmental factors.

关键词： Sulfonamide residues     Sulfonamide resistance genes     Reclaimed water recharge     Surface water     Class one integrons    

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Improvement of the assimilable organic carbon (AOC) analytical method for reclaimed water

Xin ZHAO, Hongying HU, Shuming LIU, Feng JIANG, Xiaolei SHI, Mingtang LI, Xueqiao XU

《环境科学与工程前沿（英文）》 2013年 第7卷 第4期   页码 483-491 doi: 10.1007/s11783-013-0525-0

摘要： Microbial growth is an issue of concern that may cause hygienic and aesthetic problems during the transportation and usage of reclaimed water. Assimilable organic carbon (AOC) is an important parameter which determines the heterotrophic bacterial growth potential of water. P17 and sp. NOX are widely used to measure AOC in drinking water. The AOC values of various reclaimed water samples determined by P17 and NOX were compared with those determined by the new strains isolated from reclaimed water in this study. It showed that the conventional test strains were not suitable for AOC measurement of reclaimed water in certain cases. In addition to P17 and NOX, sp. ZJ2, G3 and sp. G6, were selected as test strains for AOC measurement of reclaimed water. Key aspects of the bioassay including inoculum cell density, incubation temperature, incubation time and the pH of samples were evaluated for the newly selected test strains. Higher inoculum density (10 CFU·mL ) and higher incubation temperature (25°C) could reduce the time required for the tests. The AOC results of various collected samples showed the advantages of the method proposed based on those five strains in evaluating the biologic stability of reclaimed water.

关键词： assimilable organic carbon (AOC)     bioassay     biological stability     reclaimed water     test bacterial strains    

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Removal of sulfamethoxazole and trimethoprim from reclaimed water and the biodegradation mechanism

Qinqin Liu, Miao Li, Xiang Liu, Quan Zhang, Rui Liu, Zhenglu Wang, Xueting Shi, Jin Quan, Xuhui Shen, Fawang Zhang

《环境科学与工程前沿（英文）》 2018年 第12卷 第6期 doi: 10.1007/s11783-018-1048-5

摘要：

The artificial composite soil treatment system could efficiently remove SMX and TMP by biodegradation mechanism.

Bacillus subtilis from column reactors degraded SMX and TMP efficiently.

Bacillus subtilis biodegrades TMP to NH4+, and then converts NH4+ to NO3–.

关键词： Trimethoprim     Sulfamethoxazole     Biodegradation     Aerobic nitrification    

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Improvement of detection method of and in reclaimed water

ZHANG Tong, XIE Xing, HU Hongying, SONG Yudong, WU Qianyuan, ZONG Zusheng

《环境科学与工程前沿（英文）》 2008年 第2卷 第3期   页码 380-384 doi: 10.1007/s11783-008-0052-6

摘要： and are two typical species of pathogenic protozoans that seriously endanger water quality. Previous works indicated that detection of and with modified United States Environmental Protection Agency (USEPA) method-1623 using a membrane filtration-elution for sample concentration attained better recovery and lower cost compared to the USEPA method-1623. Several improvements of membrane filtration-elution step as well as immunomagnetic separation (IMS) steps were investigated and an optimized method for detection of and in wastewater reclamation system was recommended in this paper. The experimental results show that an overnight soak of the membrane after scraping and vortex agitation before elution could enhance and stabilize the recovery. Increasing turbidity to 4 NTU by adding kaolin clay before filtration could effectively improve the recovery of low-turbidity water. Washing the concentrate after centrifugation and twice acid dissociation both reduced the impact of water quality to protozoan recovery. Protozoans in different water samples were determined by this optimized method, and the recovery of and were above 70% and 80% respectively, much higher than the acceptance of method-1623.

关键词： USEPA method-1623     Environmental Protection     wastewater reclamation     concentration     centrifugation    

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Occurrence and fate of antibiotics in advanced wastewater treatment facilities and receiving rivers in Beijing, China

Xinwei LI,Hanchang SHI,Kuixiao LI,Liang ZHANG,Yiping GAN

《环境科学与工程前沿（英文）》 2014年 第8卷 第6期   页码 888-894 doi: 10.1007/s11783-014-0735-0

摘要： The occurrence and removal of 13 antibiotics were investigated in five wastewater treatment plants (WWTPs) with advanced wastewater treatment processes in Beijing, China. Most of the target antibiotics were detected in the secondary and tertiary effluents, with the concentrations of 4.8–1106.0 and 0.3–505.0 ng·L . Fluoroquinolone antibiotics showed relatively high concentrations in all samples (782–1814 ng·L ). Different tertiary treatment processes showed discrepant antibiotics removal performances. Ozonation process was found more effective in removing target antibiotics compared to the coagulation-flocculation-sedimentation process and sand filtration process. Investigation of the target antibiotics in three typical urban rivers in Beijing was carried out to understand antibiotics occurrence in surface water environment. Eight antibiotics were detected in the studied rivers, with highest concentration of antibiotics in the river which was mainly replenished by reclaimed water. This study showed the necessity of employing more effective advanced treatment facilities to further reduce the discharge amount of antibiotics.

关键词： antibiotics     advanced treatment     urban river     reclaimed water    

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Linear viscoelastic behavior of asphalt binders and mixtures containing very high percentages of reclaimed

《结构与土木工程前沿（英文）》 2023年 第17卷 第8期   页码 1211-1227 doi: 10.1007/s11709-023-0983-9

摘要： The primary aim of this study is to correlate the impact of aggregates, if any, on the viscoelastic behavior of rejuvenated asphalt mixtures containing very high amounts of reclaimed asphalt pavement (RAP) (> 50%). First, gradation of 100% RAP was rectified, using a modified Bailey method by adding virgin aggregates to achieve two coarse dense-graded and one fine dense-graded blends. Complex modulus test was then performed from −35 to +35 °C and 0.01–10 Hz. In addition to performance grade (PG) testing, extracted and recovered binders from different asphalt mixtures underwent shear complex modulus test within −8 °C to high temperature PG and frequencies from 0.001 to 30 Hz. Cole−Cole, Black space, complex modulus and phase angle master curves were constructed and Shift-Homothety-Shift in time-Shift (SHStS) transformation was used to compare the linear viscoelastic behavior of asphalt binders and mixtures. The influence of aggregates on the viscoelastic behavior of asphalt mixtures depends on temperature and/or frequency. The role of asphalt binders in the behavior of asphalt mixtures is more pronounced at high temperatures and the effect of the aggregate structure increases as the temperature falls. The maximum difference (60% to 70%) in the viscoelastic behavior of the binder and mixture based on SHStS transformed Cole−Cole curves is within the phase angle of 15°–20°.

关键词： RAP     complex modulus     SHStS transformation     rejuvenation     behavior of asphalt binder and mixture    

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Online control of biofilm and reducing carbon dosage in denitrifying biofilter: pilot and full-scale application

Xiuhong Liu, Hongchen Wang, Qing Yang, Jianmin Li, Yuankai Zhang, Yongzhen Peng

《环境科学与工程前沿（英文）》 2017年 第11卷 第1期 doi: 10.1007/s11783-017-0895-9

摘要： Online control of DNBF was studied in the pilot-scale and full-scale experiments. DNBF was controlled by the online monitored effluent nitrate and turbidity. The effluent nitrate lower than 3 mg·L and saving 18% of carbon were both achieved. Denitrifying biofilter (DNBF) is widely used for advanced nitrogen removal in the reclaimed wastewater treatment plants (RWWTPs). Manual control of DNBF easily led to unstable process performance and high cost. Consequently, there is a need to automatic control of two decisive operational processes, carbon dosage and backwash, in DNBF. In this study, online control of DNBF was investigated in the pilot-scale DNBF (600 m ·d ), and then applied in the full-scale DNBF (10 × 104 m3·d ). A novel simple online control strategy for carbon dosage with the effluent nitrate as the sole control parameter was designed and tested in the pilot-scale DNBF. Backwash operation was optimized based on the backwash control strategy using turbidity as control parameter. Using the integrated control strategy, in the pilot-scale DNBF, highly efficient nitrate removal with effluent TN level lower than 3 mg·L was achieved and DNBF was not clogged any more. The online control strategy for carbon dosage was successfully applied in a RWWTP. Using the online control strategy, the effluent nitrate concentration was controlled relatively stable and carbon dosage was saved for 18%.

关键词： Reclaimed water treatment     Denitrifying biofilter     Carbon dosage     Backwash control    

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Removal of trimethoprim and sulfamethoxazole in artificial composite soil treatment systems and diversity of microbial communities

Qinqin Liu, Miao Li, Rui Liu, Quan Zhang, Di Wu, Danni Zhu, Xuhui Shen, Chuanping Feng, Fawang Zhang, Xiang Liu

《环境科学与工程前沿（英文）》 2019年 第13卷 第2期 doi: 10.1007/s11783-019-1112-9

摘要：

• Novel ACST allowed biodegradation to effectively remove adsorbed SMX and TMP.

• Ammonia and nitrite were efficiently removed in ACSTs and water quality was improved.

关键词： Trimethoprim     Sulfamethoxazole     Reclaimed water     Biodegradation     Aerobic nitrification     Microbial community    

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Hydraulic properties of typical salt-affected soils in Jiangsu Province, China

CHEN Xiaomin, SHEN Qirong, XU Yangchun

《环境科学与工程前沿（英文）》 2007年 第1卷 第4期   页码 443-447 doi: 10.1007/s11783-007-0070-9

摘要： Every year about 1,500 ha of land is reclaimed from the sea along the coastline of Jiangsu Province, China. It is important to characterize the hydraulic properties of this reclaimed land to be able to predict and manage salt and wa

关键词： hydraulic     Jiangsu Province     coastline     important     reclaimed    

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标题 作者 时间 类型 操作

the thresholds of nitrogen/phosphorus concentration and hydraulic retention time for bloom control in reclaimedwater landscape

期刊论文

chlorine process on microbial community structure, typical pathogens, and antibiotic resistance genes in reclaimedwater

期刊论文

Aerosol exposure assessment during reclaimed water utilization in China and risk evaluation in case of

期刊论文

Hydraulic model for multi-sources reclaimed water pipe network based on EPANET and its applications in

JIA Haifeng, WEI Wei, XIN Kunlun

期刊论文

Factors influencing water quality indices in a typical urban river originated with reclaimed water

Jiao Zhang, Zhen Wei, Haifeng Jia, Xia Huang

期刊论文

Fate and risk assessment of emerging contaminants in reclaimed water production processes

期刊论文

Influence of reclaimed water discharge on the dissemination and relationships of sulfonamide, sulfonamide

Ning Zhang, Xiang Liu, Rui Liu, Tao Zhang, Miao Li, Zhuoran Zhang, Zitao Qu, Ziting Yuan, Hechun Yu

期刊论文

Improvement of the assimilable organic carbon (AOC) analytical method for reclaimed water

Xin ZHAO, Hongying HU, Shuming LIU, Feng JIANG, Xiaolei SHI, Mingtang LI, Xueqiao XU

期刊论文

Removal of sulfamethoxazole and trimethoprim from reclaimed water and the biodegradation mechanism

Qinqin Liu, Miao Li, Xiang Liu, Quan Zhang, Rui Liu, Zhenglu Wang, Xueting Shi, Jin Quan, Xuhui Shen, Fawang Zhang

期刊论文

Improvement of detection method of and in reclaimed water

ZHANG Tong, XIE Xing, HU Hongying, SONG Yudong, WU Qianyuan, ZONG Zusheng

期刊论文

Occurrence and fate of antibiotics in advanced wastewater treatment facilities and receiving rivers in Beijing, China

Xinwei LI,Hanchang SHI,Kuixiao LI,Liang ZHANG,Yiping GAN

期刊论文

Linear viscoelastic behavior of asphalt binders and mixtures containing very high percentages of reclaimed

期刊论文

Online control of biofilm and reducing carbon dosage in denitrifying biofilter: pilot and full-scale application

Xiuhong Liu, Hongchen Wang, Qing Yang, Jianmin Li, Yuankai Zhang, Yongzhen Peng

期刊论文

Removal of trimethoprim and sulfamethoxazole in artificial composite soil treatment systems and diversity of microbial communities

Qinqin Liu, Miao Li, Rui Liu, Quan Zhang, Di Wu, Danni Zhu, Xuhui Shen, Chuanping Feng, Fawang Zhang, Xiang Liu

期刊论文

Hydraulic properties of typical salt-affected soils in Jiangsu Province, China

CHEN Xiaomin, SHEN Qirong, XU Yangchun

期刊论文