Metabolism of urban wastewater: Ecological network analysis for Guangdong Province, China

Zheng, Bing; Huang, Guohe; Liu, Lirong; Zhai, Mengyu; Guan, Yuru

doi:10.1016/j.jclepro.2019.01.222

Cited by 49 publications

(10 citation statements)

References 35 publications

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“…The theory and concept of urban water metabolism includes a wide range of performance implications, changing from resource efficiency and hydrological performance of different water servicing options in Australia (Farooqui et al 2016), to ecological relationships among different UWS sectors and their wastewater discharges in China (Zheng et al 2019). The integration of urban metabolism and the nexus approaches for performance assessment in real-world systems has not been employed substantially.…”

Section: Introductionmentioning

confidence: 99%

Performance assessment of water reuse strategies using integrated framework of urban water metabolism and water-energy-pollution nexus

Landa-Cansigno

Behzadian

Davila-Cano³

et al. 2019

Environ Sci Pollut Res

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This paper evaluates the metabolism-based performance of a number of centralised and decentralised water reuse strategies and their impact on integrated urban water systems (UWS) based on the nexus of water-energy-pollution. The performance assessment is based on a comprehensive and quantitative framework of urban water metabolism developed for integrated UWS over a long-term planning horizon. UWS performance is quantified based on the tracking down of mass balance flows/fluxes of water, energy, materials, costs, pollutants, and other environmental impacts using the WaterMet 2 tool. The assessment framework is defined as a set of key performance indicators (KPIs) within the context of the water-energy-pollution nexus. The strategies comprise six decentralised water reuse configurations (greywater or domestic wastewater) and three centralised ones, all within three proportions of adoption by domestic users (i.e. 20, 50, and 100%). This methodology was demonstrated in the real-world case study of San Francisco del Rincon and Purisima del Rincon cities in Mexico. The results indicate that decentralised water reuse strategies using domestic wastewater can provide the best performance in the UWS with respect to water conservation, green house gas (GHG) emissions, and eutrophication indicators, while energy saving is almost negligible. On the other hand, centralised strategies can achieve the best performance for energy saving among the water reuse strategies. The results also show metabolism performance assessment in a complex system such as integrated UWS can reveal the magnitude of the interactions between the nexus elements (i.e. water, energy, and pollution). In addition, it can also reveal any unexpected influences of these elements that might exist between the UWS components and overall system. Keywords Water-energy-pollution nexus. Urban water systems. Centralised and decentralised water reuse strategies. Urban water metabolism * Luiza C. Campos

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Section: Introductionmentioning

confidence: 99%

Performance assessment of water reuse strategies using integrated framework of urban water metabolism and water-energy-pollution nexus

Landa-Cansigno

Behzadian

Davila-Cano³

et al. 2019

Environ Sci Pollut Res

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“…Zheng et al, 2019 [29] Guangdong province, China I-O analysis and ENA Constructed wastewater metabolism input-output model and analyzed the discharge of industrial wastewater.…”

Section: Author (Year) Region Of Study Evaluation Approach Notes/contributionmentioning

confidence: 99%

“…However, they evaluated water quality metabolism through water volume rather than the amount of pollutant by gray water footprint method. Recently, Zheng and colleagues [29] explored the industrial wastewater metabolism situation to support the industry systems optimization. As the focus of their study is the discharge of industrial wastewater rather than the complete recycling process of all types of sewage, there is still much work need to be executed for modelling and analyzing the total flows of pollutant in urban water metabolism.…”

Section: Author (Year) Region Of Study Evaluation Approach Notes/contributionmentioning

confidence: 99%

“…Such systems can be likened to an ecosystem, thus facilitating modeling and analysis using ENA [37]. Therefore, as an effective method for top-down modeling and analysis, ENA is not only widely used in ecosystem research [40,41] but also applied in socioeconomic system [42], river basin water resource [43][44][45][46], urban material and energy metabolism [29,[47][48][49] and urban water metabolism system analysis [9,20,22,28]. In this study, information analysis and network environ analysis in ENA were used to study the metabolic process of urban water pollutants.…”

Section: Ecological Network Analysismentioning

confidence: 99%

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Ecological Network Analysis for Water Pollution Metabolism in Urban Water Use System: Case Study of Fuzhou, China

Gao

Zhang

et al. 2021

Water

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Water environment deterioration in urban environments is a critical concern in sustainable water management processes, and the method of urban water metabolism has not been developed more fully in this field. Therefore, there is a requirement to evaluate urban water metabolism with a focus on water quality for sustainable water use. In this study, information and network environ analyses in ecological network analysis (ENA) were explored to measure the water pollutant metabolism state. Six sub-basins in the old part of Fuzhou in China using data from 2016 and 2019 were selected for the case study. Results showed that (1) water pollutant metabolism amount decreased and the metabolism efficiency was improved; (2) the contribution of sub-basins III and IV for pollutant metabolism were more important than the other sub-basins; (3) the river in sub-basin III was the maximum recipient control as a sink node; and (4) ecological relations between compartments were improved for pollutant metabolism. Based on the results, we proposed five types of ENA indicators including TST, a, wj, matrix CX, matrix sgnU, and C for the water pollutant metabolism assessment. The method developed here provided new insights to understand the production, transport, degradation, and discharge of pollutants in water use activities in urban environments, and we hope it can be helpful to improve the extension and application of the water metabolism approach in managing urban water quantity and quality in future.

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“…For Zheng et al (2020), CWs have become one of the preferred technologies to remove pollutants from wastewater due to low energy demand, low maintenance costs, and excellent ecological service values. Wastewater containing organic materials and ammonium nitrogen can cause serious ecological problems if discharged into water bodies (ZHENG et al, 2019). Ammonia is toxic to many aquatic plants and animals (LIU; VON WIREN, 2017).…”

Section: Introductionmentioning

confidence: 99%

Performance of constructed wetland system using different species of macrophytes in the treatment of domestic sewage treatment

Sandri

Reis

2021

Reveng

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The objective is to assess the initial performance of a constructed wetland system and the development of the macrophyte species cattail(Typha spp.) (CWt), piripiri (Cyperus giganteus) (CWp), and white garland lily (Hedychium coronarium Koehne) (CWl) and an suncultivated (UNc) on the treatment of sewage from toilets and from a restaurant. Changes in hydrogen potential, electrical conductivity, total suspended solids, total solids, biochemical oxygen demand, chemical oxygen demand, turbidity, nitrate, ammonium nitrogen, total phosphate, hydraulic retention time (HRT), and potential evapotranspiration (PET) and the development and adaptation of macrophytes were measured. The surface area of ??each constructed wetland (CW) had a surface area of 16.25 m2 and average volume treated of 0.40 m3 d-1, with continuous variable horizontal subsurface flow equally fed with sewage previously treated in three septic tanks in series, with an individual useful volume of 5.100 L. The PET in CWt, CWp and CWl was higher than that of UNc. The highest pH values were obtained in the effluent of CWp, CWt, and CWl. The use of macrophytes did not influence the EC, TS, BOD5,20, COD, and nitrate were lower and ammonium nitrogen and total phosphate were higher in the effluent of CWs and UNc in relation to the influent. The efficiency indexes that showed a very strong Pearson correlations (> 90%) were pH correlated with N-NH4+, turbidity correlated with COD, TS correlated with EC, and BOD5,20 and COD correlated with NO3-.Piripiri and cattails showed the best development of plants in the second half of CW.

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Metabolism of urban wastewater: Ecological network analysis for Guangdong Province, China

Cited by 49 publications

References 35 publications

Performance assessment of water reuse strategies using integrated framework of urban water metabolism and water-energy-pollution nexus

Performance assessment of water reuse strategies using integrated framework of urban water metabolism and water-energy-pollution nexus

Ecological Network Analysis for Water Pollution Metabolism in Urban Water Use System: Case Study of Fuzhou, China

Performance of constructed wetland system using different species of macrophytes in the treatment of domestic sewage treatment

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