Assessment and improvement analysis of economic production, water pollution, and sewage treatment efficiency in China

Shi, Zhen; She, Zhiyu; Chiu, Yung‐ho; Qin, Shijiong; Zhang, Lina

doi:10.1016/j.seps.2020.100956

Cited by 38 publications

(9 citation statements)

References 33 publications

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“… First, previous studies have tended to divide China according to administrative divisions or geographical locations, such as Shi et al divided China into eastern, central, and western regions and analyzed the efficiency of thirty provinces in both economic production and sewage treatment stages 40 . Tang et al analyzed the differences in solid waste disposal efficiency between regions according to coastal and inland divisions 41 .…”

Section: Discussionmentioning

confidence: 99%

A modified dynamic DEA model to assess the wastewater treatment efficiency: perspective from Yangtze River and Non-Yangtze River Basin

Ren

Sun

Liu

et al. 2022

Sci Rep

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The wastewater treatment efficiency is crucial to constructing a livable ecological environment and promoting the sustainable development of economy and society. The differences in natural conditions, economic development and local policies between the Yangtze River Basin (YRB) and the Non-Yangtze River Basin (NYRB) increase the difficulty of wastewater treatment in governance. This study uses a modified Dynamic Data Envelopment Analysis (DEA) model to assess the wastewater treatment from 2013 to 2020, and divides the study period into two stages: the first stage (2013–2017) assesses the wastewater treatment efficiency of 18 provinces and cities in YRB and 12 provinces and cities in NYRB; the second stage (2018–2020) conducts statistical analysis of wastewater discharge pollutants in YRB and NYRB. The results conclude that the total wastewater treatment efficiency is generally low, but polarization is quite prominent. Among total wastewater treatment efficiency, NYRB scored 0.504, or slightly higher than YRB (0.398). In terms of expense efficiency, both NYRB and YRB scored below 0.4. In terms of chemical oxygen demand (COD) output efficiency, YRB (0.488) is better than NYRB (0.420). The second stage of statistical analysis presents that pollutant emissions are still high; the regions need to increase wastewater treatment investment and improve wastewater treatment efficiency.

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Section: Discussionmentioning

confidence: 99%

A modified dynamic DEA model to assess the wastewater treatment efficiency: perspective from Yangtze River and Non-Yangtze River Basin

Ren

Sun

Liu

et al. 2022

Sci Rep

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“…Some studies only consider the point source pollution dominated by domestic sewage and industrial wastewater (Z. Shi et al, 2021). Other studies only discuss non-point source pollution from livestock and poultry manure and agricultural waste (Li et al, 2017).…”

Section: Comparison Of Different Scenariosmentioning

confidence: 99%

“…As necessities of urban production and life, water resources will cause serious harm to urban development once polluted. With the rapid development of urbanization and industrialization in China, municipal domestic sewage and industrial wastewater are threatening the high-quality development of Chinese cities (Shi et al, 2021). In addition, a large amount of agricultural wastes and livestock manure also pose a major threat to the water environment (Ongley et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Simulation study of the multi-driver regulation strategy for an urban water pollution system

Huang

Jia

et al. 2022

Front. Environ. Sci.

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Water resources serve as the foundation for high-quality urban development. As water pollution has become a major impediment to high-quality urban development, solving the problem of urban water pollution is critical for attaining high-quality urban growth. This research analyzes both point and non-point sources of pollution and constructs an urban water pollution simulation system model from four subsystems: population, industry, cultivated land, and livestock and poultry. This study selects 2020 as the base year and the current year’s development situation as the base scenario and then sets the other five simulation scenarios according to the research area development plan. Using Yichang data in this model, the research simulated and predicted the total amount of urban COD pollution under different scenarios. The results show that: 1) The difference between the simulation results of the constructed urban water pollution system and the 2010–2020 historical data is within 10%, which shows that the constructed system can analyze the reality. 2) Under the benchmark scenario, from 2020–2030, the total amount of urban COD shows a downward trend. The pollution from population and livestock subsystems are reduced by 20.20 and 35.29%, respectively, the industrial subsystem is increased by 40.60%, and the cultivated land subsystem is increased by 0.56%. 3) Compared with the benchmark scenario, the urban COD pollution in five scenarios has been reduced by 8,400, 42,000, 21,700, 100, and 72,300 tons, respectively, among which water pollution control measures in scenario five have the best effect. 4) Only by comprehensively controlling all pollution sources (scenario 5) can the total amount of urban COD pollution be controlled within 450,000 tons in 2030, which will be reduced by over 20% compared with 2020. An urban water pollution system can be used to simulate the source composition and total change amount of water pollution in the process of urban development, which is of great significance for government departments to provide accurate counter-measures for urban water pollution control and management decisions.

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“…Currently, there are numerous processes for the treatment of sewage, individual or combined. The decision for the process to be employed must take into account, mainly, the conditions of the watercourse and the characteristics of the raw sewage to be released 2,3 . The contamination of natural waters can be physical—when the contamination does not react with the water but affects the ecosystem; chemistry—when water composition changes; or even biological—when pathogenic microorganisms can affect the ecosystem 4–7 …”

Section: Introductionmentioning

confidence: 99%

“…The decision for the process to be employed must take into account, mainly, the conditions of the watercourse and the characteristics of the raw sewage to be released. 2,3 The contamination of natural waters can be physical-when the contamination does not react with the water but affects the ecosystem; chemistry-when water composition changes; or even biological-when pathogenic microorganisms can affect the ecosystem. [4][5][6][7] The need to identify suitable growth inhibitory agents for the incapacitation or death of pathogenic microorganisms has attracted the interest of researchers in an attempt to develop nanomaterials that have a better antimicrobial action to act in the treatment of effluents.…”

Section: Introductionmentioning

confidence: 99%

Study of the bactericidal properties of ZnO/Ag⁰ nanoparticles in the treatment of raw sewage effluents

Moreira

Neto

Oliveira

et al. 2023

Int J Ceramic Engine & Sci

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In this work, the antimicrobial treatment of raw sewage effluents (RSE) of residences was studied. For this, the RSE was collected from a treatment plant and the antimicrobial activity was evaluated using Ag 0 decorated ZnO nanoparticles.ZnO/Ag 0 nanoparticles were synthesized by a microwave-assisted hydrothermal method and sonochemical method. The effect of ZnO/Ag 0 nanoparticles was evaluated by varying the concentration of the catalyst to the RSE, varying the amount of silver, and varying the contact time of the catalyst with the RSE, to optimize the process. The ZnO/Ag 0 nanoparticles were characterized by X-ray diffraction, surface area using the Brunauer-Emmett-Teller methodology, and field emission scanning electron microscopy. The results indicate that the particles synthesized by the association of sonochemical and hydrothermal methods provide a better antimicrobial result against all tested bacteria.The results obtained in this manuscript indicate an alternative methodology in the removal of 99% of the bacteria from tailings from a real sewer, showing its applicability in the treatment for later consumption.

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Assessment and improvement analysis of economic production, water pollution, and sewage treatment efficiency in China

Cited by 38 publications

References 33 publications

A modified dynamic DEA model to assess the wastewater treatment efficiency: perspective from Yangtze River and Non-Yangtze River Basin

A modified dynamic DEA model to assess the wastewater treatment efficiency: perspective from Yangtze River and Non-Yangtze River Basin

Simulation study of the multi-driver regulation strategy for an urban water pollution system

Study of the bactericidal properties of ZnO/Ag⁰ nanoparticles in the treatment of raw sewage effluents

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Assessment and improvement analysis of economic production, water pollution, and sewage treatment efficiency in China

Cited by 38 publications

References 33 publications

A modified dynamic DEA model to assess the wastewater treatment efficiency: perspective from Yangtze River and Non-Yangtze River Basin

A modified dynamic DEA model to assess the wastewater treatment efficiency: perspective from Yangtze River and Non-Yangtze River Basin

Simulation study of the multi-driver regulation strategy for an urban water pollution system

Study of the bactericidal properties of ZnO/Ag0 nanoparticles in the treatment of raw sewage effluents

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Product

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Study of the bactericidal properties of ZnO/Ag⁰ nanoparticles in the treatment of raw sewage effluents