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Decentralized wastewater treatment technologies and management in Chinese villages

Xuesong GUO,Zehang LIU,Meixue CHEN,Junxin LIU,Min YANG

《环境科学与工程前沿（英文）》 2014年 第8卷 第6期   页码 929-936 doi: 10.1007/s11783-013-0623-z

摘要： Problems treating sewage in rural areas in China have attracted increasing attention in recent years. However, only 6% of rural areas had spray drainage and wastewater treatment systems by the end of 2010. It is necessary to assess the technologies currently used so that sewage treatment in rural areas can be developed appropriately, to provide reliable and affordable wastewater treatment, in these areas. We evaluated the sewage treatment technologies currently used in rural areas by conducting case studies on 62 facilities that had each been operating for at least one year. Our study was carried out between 2009 and 2011, and the aim was to assess the situation during that period and assess any problems involved in decentralized sewage treatment in villages. We found that decentralized sewage treatment is the most popular wastewater treatment method in villages, and that the most common primary treatment technology used in rural areas is the septic tank. Our investigation highlights the need to establish standards for assessing effluent quality, including a range of target pollutants. Our results also show that effluents should be reused to meet the local environmental requirements in different areas, especially in ecologically sensitive areas.

关键词： decentralized treatment     strategy     sustainable development     village     wastewater treatment situation    

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Comparison and modeling of two biofilm processes applied to decentralized wastewater treatment

Guanglei QIU, Yonghui SONG, Peng YUAN, Liancheng XIANG, Jianfeng PENG, Ping ZENG,

《环境科学与工程前沿（英文）》 2009年 第3卷 第4期   页码 412-420 doi: 10.1007/s11783-009-0141-1

摘要： In order to control water pollution in the rapidly urbanizing South China area, biological contact oxidation (BCO) process and biological aerated filter (BAF) process were applied in a pilot-scale experiment for decentralized wastewater treatment. An investigation to find the optimal parameters of the two biofilm systems was conducted on hydraulic loading, organic loading, and aeration rate. The results indicated that the water reuse criteria required a maximum hydraulic and organic loading of 30.0 m/(m·d) and 4.0 kg COD/(m·d), respectively, as well as a minimum effluent DO of 4.0 mg/L. The utilization of a new media allowed BAF to perform better than BCO. The kinetic description of the COD removal process for BAF and BCO are Yang ZHANG,Zifu LI,Ibrahim B MAHMOOD. [J]. Front. Environ. Sci. Eng., 2014, 8(6): 825-834.Daijun ZHANG, Cui BAI, Ting TANG, Qing YANG. [J]. Front Envir Sci Eng Chin, 2011, 5(2): 291-297.Deming ZHAO, Jie CHENG, Michael R. HOFFMANN. [J]. Front Envir Sci Eng Chin, 2011, 5(1): 57-64.Bo WANG, Wei WAN, Jianlong WANG, . [J]. Front.Environ.Sci.Eng., 2009, 3(4): 380-386. Junxiong LIN , Lan WANG , . [J]. Front.Environ.Sci.Eng., 2009, 3(3): 320-324.Lu LI, Shuguang XIE, Hui ZHANG, Donghui WEN. [J]. Front Envir Sci Eng Chin, 2009, 3(1): 38-47.

关键词： biological contact oxidation     biological aerated filter     decentralized wastewater treatment     kinetic model    

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Mechanistic insight into the biofilm formation and process performance of a passive aeration ditch (PAD) for decentralizedwastewater treatment

《环境科学与工程前沿（英文）》 2022年 第16卷 第7期 doi: 10.1007/s11783-021-1494-3

摘要：

• A Passive Aeration Ditch was developed to treat decentralized wastewater.

关键词： Decentralized wastewater     Passive aeration ditch     Biofilm formation     C/N ratio     Salinity     Model simulation    

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Performance of a hybrid anaerobic-contact oxidation biofilm baffled reactor for the treatment of decentralizedmolasses wastewater

Minmin LIU,Ying ZHAO,Beidou XI,Li’an HOU,Xunfeng XIA

《环境科学与工程前沿（英文）》 2014年 第8卷 第4期   页码 598-606 doi: 10.1007/s11783-013-0576-2

摘要： A novel hybrid anaerobic-contact oxidation biofilm baffled reactor (HAOBR) was developed to simultaneously remove nitrogenous and carbonaceous organic pollutants from decentralized molasses wastewater in the study. The study was based on the inoculation of anaerobic granule sludge in anaerobic compartments and the installation of combination filler in aerobic compartments. The performance of reactor system was studied regarding the hydraulic retention time (HRT), microbial characteristics and the gas water ratio (GWR). When the HRT was 24h and the GWR was 20:1, total ammonia and chemical oxygen demand (COD) of the effluent were reduced by 99% and 91.8%, respectively. The reactor performed stably for treating decentralized molasses wastewater. The good performance of the reactor can be attributed to the high resistance of COD and hydraulic shock loads. In addition, the high solid retention time of contact oxidation biofilm contributed to stable performance of the reactor.

关键词： combination filler     contact oxidation biofilm     food wastewater     anaerobic baffled reactor    

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Distribution of antibiotic resistance genes and their association with bacteria and viruses in decentralizedsewage treatment facilities

《环境科学与工程前沿（英文）》 2022年 第16卷 第3期 doi: 10.1007/s11783-021-1469-4

摘要：

• Distribution of ARGs in decentralized sewage facilities were investigated.

关键词： Decentralized sewage treatment facilities     Antibiotic resistance genes     Virus     Metagenomics     Network analysis    

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Occurrence and migration of microplastics and plasticizers in different wastewater and sludge treatmentunits in municipal wastewater treatment plant

《环境科学与工程前沿（英文）》 2022年 第16卷 第11期 doi: 10.1007/s11783-022-1577-9

摘要：

● Reduce the quantifying MPs time by using Nile red staining.

关键词： Microplastics     Municipal wastewater treatment plant     Phthalate esters     Thermal hydrolysis    

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Microplastics in municipal wastewater treatment plants: a case study of Denizli/Turkey

《环境科学与工程前沿（英文）》 2023年 第17卷 第8期 doi: 10.1007/s11783-023-1699-8

摘要：

● High amounts of microplastics are released to receiving media from WWTPs.

关键词： Microplastics     Wastewater treatment plant     Removal efficiency     Daily discharge    

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Integrated energy view of wastewater treatment: A potential of electrochemical biodegradation

《环境科学与工程前沿（英文）》 2022年 第16卷 第4期 doi: 10.1007/s11783-021-1486-3

摘要：

• Energy is needed to accelerate the biological wastewater treatment.

关键词： Biological wastewater treatment     Integrated energy view     Electroactive bacteria     Extracellular electron transfer    

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Photosensitivity sources of dissolved organic matter from wastewater treatment plants and their mediation

《环境科学与工程前沿（英文）》 2023年 第17卷 第6期 doi: 10.1007/s11783-023-1669-1

摘要：

● EE2 photodegradation behavior in the presence of four WWTPs’ DOM was explored.

关键词： Photosensitivity sources     17α-ethinylestradiol     Photodegradation     Dissolved organic matter     Wastewater treatment plants    

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Impacts of advanced treatment processes on elimination of antibiotic resistance genes in a municipalwastewater treatment plant

Lian Yang, Qinxue Wen, Zhiqiang Chen, Ran Duan, Pan Yang

《环境科学与工程前沿（英文）》 2019年 第13卷 第3期 doi: 10.1007/s11783-019-1116-5

摘要：

The distributions of ARGs were monitored in a WWTP in Harbin during six months.

CASS had the best removal efficacy of ARGs compared to other processes in the WWTP.

UV disinfection could effectively control the HGT.

AGAC significantly remove ARGs and organics due to its high absorption capacity.

Combination of ozone and AGAC significantly improve removal of ARGs and organics.

关键词： Antibiotic resistance genes (ARGs)     Wastewater treatment plant (WWTP)     Ultraviolet (UV)     Ozonation     Granular activated carbon (GAC)    

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Membrane bioreactors for hospital wastewater treatment: recent advancements in membranes and processes

《化学科学与工程前沿（英文）》 2022年 第16卷 第5期   页码 634-660 doi: 10.1007/s11705-021-2107-1

摘要： Discharged hospital wastewater contains various pathogenic microorganisms, antibiotic groups, toxic organic compounds, radioactive elements, and ionic pollutants. These contaminants harm the environment and human health causing the spread of disease. Thus, effective treatment of hospital wastewater is an urgent task for sustainable development. Membranes, with controllable porous and nonporous structures, have been rapidly developed for molecular separations. In particular, membrane bioreactor (MBR) technology demonstrated high removal efficiency toward organic compounds and low waste sludge production. To further enhance the separation efficiency and achieve material recovery from hospital waste streams, novel concepts of MBRs and their applications are rapidly evolved through hybridizing novel membranes (non hydrophilic ultrafiltration/microfiltration) into the MBR units (hybrid MBRs) or the MBR as a pretreatment step and integrating other membrane processes as subsequent secondary purification step (integrated MBR-membrane systems). However, there is a lack of reviews on the latest advancement in MBR technologies for hospital wastewater treatment, and analysis on its major challenges and future trends. This review started with an overview of main pollutants in common hospital wastewater, followed by an understanding on the key performance indicators/criteria in MBR membranes (i.e., solute selectivity) and processes (e.g., fouling). Then, an in-depth analysis was provided into the recent development of hybrid MBR and integrated MBR-membrane system concepts, and applications correlated with wastewater sources, with a particular focus on hospital wastewaters. It is anticipated that this review will shed light on the knowledge gaps in the field, highlighting the potential contribution of hybrid MBRs and integrated MBR-membrane systems toward global epidemic prevention.

关键词： membrane technology     membrane bioreactor     hospital wastewater     hybrid MBR     integrated MBR-membrane system    

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Recent advances in membrane bioreactor technology for wastewater treatment in China

Xia HUANG, Kang XIAO, Yuexiao SHEN

《环境科学与工程前沿（英文）》 2010年 第4卷 第3期   页码 245-271 doi: 10.1007/s11783-010-0240-z

摘要： Since the introduction of the membrane bioreactor (MBR) in China in the early 1990s, remarkable progress has been achieved on the research and application of this technology. China has now become one of the most active fields in the world in this regard. This review outlines the development of MBR-based processes in China and their performance of treating municipal and industrial wastewaters. Since membrane fouling is a critical operational problem with MBR processes, this paper also proposes updated understanding of fouling mechanisms and strategies of fouling control, which are mainly compiled from publications of Chinese researchers. As for the commercial application of MBR in the country, the latest statistics of large-scale MBR plants (>10000 m·d) are provided, and the growth trend of total treatment capacity as well as its driving force is analyzed.

关键词： membrane bioreactor (MBR)     municipal wastewater treatment     industrial wastewater treatment     membrane fouling     commercial application     China    

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Development and application of some renovated technologies for municipal wastewater treatment in China

QIAN Yi, WEN Xianghua, HUANG Xia

《环境科学与工程前沿（英文）》 2007年 第1卷 第1期   页码 1-12 doi: 10.1007/s11783-007-0001-9

摘要： China has been experiencing fast economic development in recent decades at the cost of serious environmental deterioration. Wastewater discharge, especially municipal wastewater discharge, and non-point pollution sources are becoming the major water pollution source and research focus. Great efforts have been made on water pollution control and a number of renovated technologies and processes for municipal wastewater treatment and reclamation as well as non-point pollution control have been developed and applied in China. This paper discusses the development and application of the appropriate technologies, including natural treatment systems, anaerobic biological treatment, biofilm reactors and wastewater reclamation technologies, for water pollution control in the country.

关键词： reclamation     Wastewater discharge     renovated     biological treatment     application    

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Energy neutrality potential of wastewater treatment plants: A novel evaluation framework integrating

《环境科学与工程前沿（英文）》 2022年 第16卷 第9期 doi: 10.1007/s11783-022-1549-0

摘要：

• Framework of indicators was established based on energy efficiency and recovery.

关键词： Wastewater treatment plants     Energy neutrality potential     Energy efficiency     Energy recovery     Evaluation framework    

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Application of electrode materials and catalysts in electrocatalytic treatment of dye wastewater

《化学科学与工程前沿（英文）》 2021年 第15卷 第6期   页码 1427-1443 doi: 10.1007/s11705-021-2108-0

摘要： The dye industry produces a large amount of hazardous wastewater every day worldwide, which brings potential threaten to the global environment. As an excellent method for removal of water chroma and chemical oxygen demand, electrocatalytic methods are currently widely used in the treatment of dye wastewater. The selection and preparation of electrode materials and electrocatalysts play an important role on the electrocatalytic treatment. The aim of this paper is to introduce the most excellent high-efficiency electrode materials and electrocatalysts in the field of dye wastewater treatment. Many electrode materials such as metal electrode materials, boron-doped diamond anode materials and three-dimensional electrode are introduced in detail. Besides, the mechanism of electrocatalytic oxidation is summarized. The composite treatment of active electrode and electrocatalyst are extensively examined. Finally, the progress of photo-assisted electrocatalytic methods of dye wastewater and the catalysts are described.

关键词： electrocatalytic oxidation     electrode     electrocatalysis     dye wastewater    

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标题 作者 时间 类型 操作

Decentralized wastewater treatment technologies and management in Chinese villages

Xuesong GUO,Zehang LIU,Meixue CHEN,Junxin LIU,Min YANG

期刊论文

Comparison and modeling of two biofilm processes applied to decentralized wastewater treatment

Guanglei QIU, Yonghui SONG, Peng YUAN, Liancheng XIANG, Jianfeng PENG, Ping ZENG,

期刊论文

Mechanistic insight into the biofilm formation and process performance of a passive aeration ditch (PAD) for decentralizedwastewater treatment

期刊论文

Performance of a hybrid anaerobic-contact oxidation biofilm baffled reactor for the treatment of decentralizedmolasses wastewater

Minmin LIU,Ying ZHAO,Beidou XI,Li’an HOU,Xunfeng XIA

期刊论文

Distribution of antibiotic resistance genes and their association with bacteria and viruses in decentralizedsewage treatment facilities

期刊论文

Occurrence and migration of microplastics and plasticizers in different wastewater and sludge treatmentunits in municipal wastewater treatment plant

期刊论文

Microplastics in municipal wastewater treatment plants: a case study of Denizli/Turkey

期刊论文

Integrated energy view of wastewater treatment: A potential of electrochemical biodegradation

期刊论文

Photosensitivity sources of dissolved organic matter from wastewater treatment plants and their mediation

期刊论文

Impacts of advanced treatment processes on elimination of antibiotic resistance genes in a municipalwastewater treatment plant

Lian Yang, Qinxue Wen, Zhiqiang Chen, Ran Duan, Pan Yang

期刊论文

Membrane bioreactors for hospital wastewater treatment: recent advancements in membranes and processes

期刊论文

Recent advances in membrane bioreactor technology for wastewater treatment in China

Xia HUANG, Kang XIAO, Yuexiao SHEN

期刊论文

Development and application of some renovated technologies for municipal wastewater treatment in China

QIAN Yi, WEN Xianghua, HUANG Xia

期刊论文

Energy neutrality potential of wastewater treatment plants: A novel evaluation framework integrating

期刊论文

Application of electrode materials and catalysts in electrocatalytic treatment of dye wastewater

期刊论文