An assessment of the purification performance and resilience of sponge-based aerobic biofilm reactors for treating polluted urban surface waters

He, Shangwei; Song, Na; Yao, Zongbao; Jiang, Haipeng

doi:10.1007/s11356-022-19083-4

Cited by 5 publications

(2 citation statements)

References 60 publications

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“…Driving force D1: Control degree of water consumption target per 10,000 RMB of GDP [46] The ratio of water consumption per ten thousand RMB of GDP to assessment value D2: Development and utilization of water resources [47] The ratio of water supply to total water resources D3: Effective use coefficient of farmland irrigation water [46] The ratio of the actual effective use of water to the total amount of water inflow in the irrigated area, excluding deep seepage and field loss D4: Water quality compliance rate of water function zone [48] The ratio of the number of water quality up-to-standard water function areas to the total number of water function areas D5: Target control degree of water consumption per 10,000 RMB of industrial added value [46] The ratio of water consumption per 10,000 RMB of industrial added value to assessment value D6: Water quality compliance rate of drinking water sources [46] The ratio of the number of drinking water sources meeting the water quality standards to the total number of drinking water sources Pressure P1: Satisfaction rate of ecological flow in control sections of important rivers and lakes [49] The compliance rate of the ecological flow targets determined by the main control sections in important rivers and lakes P2: Level 1~5 embankment compliance rate [50] The ratio of the length of dikes of grades 1 to 5 reaching the flood control standard to the total length of dikes of grades 1 to 5 P3: Elimination ratio of black and odorous water bodies in urban built-up areas [51] The ratio of the number of black and odorous water bodies eliminated in urban built-up areas to the total number of water bodies P4: Ecological embankment ratio [52] The ratio of ecological embankment to total embankment length Table 1. Cont.…”

Section: Standard Layer Index Layer Explainmentioning

confidence: 99%

Evaluation of Water Network Construction Effect Based on Game-Weighting Matter-Element Cloud Model

Zhang

Huang

et al. 2023

Water

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Water network construction is one of the important ways to solve complex water problems at present. It is crucial for the optimal allocation of water resources, flood control, disaster reduction, protection of water ecology, water security, and sustainable urban development. Accordingly, this study formulates an index system for assessing the efficacy of water network construction based on the Driving Force–Pressure–State–Influence–Response (DPSIR) model, taking into account the four dimensions of optimal allocation of water resources, flood control and disaster reduction in river basins, protection of water ecosystems, and intelligent water network management. The proposed index system comprises four key aspects, which are utilized to evaluate the effectiveness of water network construction efforts. Then, the game-weighting method and the matter-element extension method improved by the cloud theory established an evaluation model to evaluate and compare the water network construction effects of the two cities in Henan Province. Finally, the GM (1,1) model was used to evaluate the water network construction effects, and future trends were predicted. The results show the following: (1) On the whole, the effect of water network construction in the two cities is constantly improving; (2) There has been a significant improvement in the intelligent management of water networks. The main reason for this result is that the “Internet +” has promoted the intelligent construction of water networks; (3) The water ecological environment, flood control, and drainage capabilities continued to improve, which has largely guaranteed the basic security bottom line of urban development space; (4) The advancement and utilization of water resources has undergone gradual improvements over time, with key impact metrics centered on water supply safety factors and the development and utilization of water resources. As water supply sources continue to diversify, it is expected that the aforementioned situation will be ameliorated in the future; (5) The predicted value shows that the water network construction of the two cities can basically meet the planned value of each index when the water network construction reaches the planning level. This paper provides help to promote the sustainable use of water resources and ensure the sustainable development of cities.

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Section: Standard Layer Index Layer Explainmentioning

confidence: 99%

Evaluation of Water Network Construction Effect Based on Game-Weighting Matter-Element Cloud Model

Zhang

Huang

et al. 2023

Water

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“…Human activities have altered and will continue to alter nitrogen and sulfur cycling by increasing the amount of reactive nitrogen and sulfur in urban river sediments (Nelson et al 2016a). Nitrogen and sulfur cycling in sediment can lead to the formation of odorous thioether and black-colored particles, which are accountable for forming black-odorous rivers (He et al 2022;Li et al 2020). Environmental changes are altering the distribution of biodiversity, which in turn is a crucial driver of biogeochemical cycles ; Yang et al 2022).…”

Section: Introductionmentioning

confidence: 99%

Fluorescein diacetate hydrolytic activity as a sensitive tool to quantify nitrogen/sulfur gene content in urban river sediments in China

Zhang

Sun

et al. 2023

Environ Sci Pollut Res

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The relative abundance of functional genes used to quantify the abundance of functional genes in communities is controversial. Quantitative PCR (qPCR) technology offers a powerful tool for quantifying functional gene abundance. However, humic substances can inhibit qPCR in sediment/soil samples. Therefore, nding a convenient and effective quantitative analysis method for sediment/soil samples is necessary. The functional genes and physicochemical properties in sediments with different-level pollutions were analyzed in this study. Correlations between physicochemical properties and the relative abundance of functional genes were used to test whether relative abundance in gene prediction quanti es the abundance of functional genes. The abundance of functional genes could be corrected by multiplying the uorescein diacetate (FDA) hydrolytic rates by the relative abundance of functional genes since the FDA assay has been widely used as a rapid and sensitive method for quantifying microbial activity in sediments. Redundancy analysis showed signi cant interrelations between the functional genes and the physicochemical properties of sediments. The relative abundance of functional genes is unreliable for quantifying the abundance of functional genes because of the weak correlation (R < 0.5, P < 0.05) between different pollutants and the relative abundance of functional genes. However, a signi cant positive correlation between concentrations of different pollutants and the activities of associated enzymes was obtained (R > 0.933, P < 0.05), which revealed that the abundance of functional genes could be reliably quanti ed by the relative abundance and FDA hydrolytic rate. This study proposed an alternative method besides qPCR to quantify the absolute abundance of functional genes, which overcomes the problem of humic interference in the quantitative analysis of sediment/soil samples.

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Grade evaluation of black-odorous urban rivers in the Greater Bay Area of China using an improved back propagation (BP) neural network

Xu¹,

Huang²,

Fuhua³

et al. 2023

Environ Sci Pollut Res

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An assessment of the purification performance and resilience of sponge-based aerobic biofilm reactors for treating polluted urban surface waters

Cited by 5 publications

References 60 publications

Evaluation of Water Network Construction Effect Based on Game-Weighting Matter-Element Cloud Model

Evaluation of Water Network Construction Effect Based on Game-Weighting Matter-Element Cloud Model

Fluorescein diacetate hydrolytic activity as a sensitive tool to quantify nitrogen/sulfur gene content in urban river sediments in China

Grade evaluation of black-odorous urban rivers in the Greater Bay Area of China using an improved back propagation (BP) neural network

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