Environmental monitoring and assessment of the water bodies of a pre-construction urban wetland

Zuo, Shengpeng; Wan, Kun; Zhou, Shoubiao; Ma, Siqi

doi:10.1007/s10661-014-3931-2

Cited by 3 publications

(2 citation statements)

References 10 publications

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“…So its ecological functions are significant, especially with regard to water purification. The essence of nutrient removal is an integrated mixture of sedimentation, filtration, adsorption, biological absorption, and biochemical transformation processes with the assistance of wetland soils, microorganisms, and plants (Wang et al, 2009;Zuo et al, 2014). There are various removal rates in different seasons and years in the FNWP (Table 5).…”

Section: Nutrients Removal Efficiency In Different Seasons and Yearsmentioning

confidence: 99%

Seasonal and Spatial Variability of Water Quality and Nutrient Removal Efficiency of Restored Wetland: A Case Study in Fujin National Wetland Park, China

Xue

et al. 2018

Chin. Geogr. Sci.

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To investigate the spatio-temporal and compositional variation of selected water quality parameters and understand the purifying effects of wetland in Fujin National Wetland Park (FNWP), China, the trophic level index (TLI), paired samples t-test and correlation analysis were used for the statistical analysis of a set of 10 water quality parameters. The analyses were based on water samples collected from 22 stations in FNWP between 2014 and 2016. Results initially reveal that total nitrogen (TN) concentrations are above class V levels (2 mg/L), total phosphorus (TP) concentrations are below class III levels (0.2 mg/L), and that all other parameters fall within standard ranges. Highest values for TN, pH, and Chlorophyll-a were recorded in 2016, while the levels of chemical oxygen demand (COD Mn) and biochemical oxygen demand (BOD 5) were lowest during this year. Similarly, TN values were highest between 2014 and 2016 while dissolved oxygen (DO) concentrations were lowest in the summer and TP concentrations were highest in the autumn. Significant variations were also found in Secchi depth (SD), TN, COD Mn (P < 0.01), TP, and DO levels (P < 0.05) between the inlet and outlet of the park. High-to-low levels of TN, TP, and TDS were found in cattails, reeds, and open water (the opposite trend was seen in SD levels). Tested wetland water had a light eutrophication status in most cases and TN and TP removal rates were between 7.54%-84.36% and 37.50%-70.83%, respectively. Data also show no significant annual changes in water quality within this wetland, although obvious affects from surrounding agricultural drainage were nevertheless recorded. Results reveal a high major nutrient removal efficiency (N and P). The upper limits of these phenomena should be addressed in future research alongside a more efficient and scientific agricultural layout for the regions in and around the FNWP.

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Section: Nutrients Removal Efficiency In Different Seasons and Yearsmentioning

confidence: 99%

Seasonal and Spatial Variability of Water Quality and Nutrient Removal Efficiency of Restored Wetland: A Case Study in Fujin National Wetland Park, China

Xue

et al. 2018

Chin. Geogr. Sci.

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“…Their power rating is 20 W. Two 5 cm diameter propellers have been chosen, allowing satisfactory speed (about 1 m/s) and reasonable power consumption. Each Towards automation of measurement processes of surface water parameters by a remote-controlled catamaran tive [12] or investigated by others such as those described by [45]. As a starting point for further development, authors have decided to measure only several ion concentrations using the potentiometric method as well as temperature as necessary to accurately determine the concentrations.…”

Section: Electricsmentioning

confidence: 99%

Towards automation of measurement processes of surface water parameters by a remote-controlled catamaran

Kozyra¹,

Wiora²

2017

Bulletin of the Polish Academy of Sciences Technical Sciences

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This paper describes a way of determining selected water parameters using a prototype of a remote-controlled catamaran. The remote controlling allows to steer the boat and to manage the measurement process from the shore. It is possible to monitor the water parameters online as well as to store them and analyze them afterwards. The measured parameters are determined mainly using potentiometric methods and include several ion concentrations. The system is orientated towards monitoring breeding ponds or other similar surface waters. The mechanical construction of the catamaran, its electronic circuits and implemented software are described in detail in the paper. Conclusions obtained from preliminary tests are also included. The described construction allows analysts to perform simple and inexpensive remote measurements or assessments of water quality and reduces the time of such analysis in comparison to traditional sampling.

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Assessing the impact of preload on pyrite-rich sediment and groundwater quality

Karikari-Yeboah

Addai‐Mensah

2017

Environ Monit Assess

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Pyrite-rich sediments would, invariably, undergo redox reactions which would lead to acidic aqueous environment containing solubilized toxic metal species. When such sediments are subjected to preload, a technique employed by geotechnical engineers to improve the load-bearing capacity of highly compressible formation, transient flow of pore water, accompanied by acidity transfer, would occur as a response. Despite the concomitant environmental and socio-economic significance, to date, there has been limited interdisciplinary research on the underpinning geotechnical engineering and geo-environmental science issues for pyrite-rich sediments under preload. In this study, we investigate the effect of pyrite-rich sediment pore water transfer under preload surcharge on the receiving environment and the impact on the groundwater speciation and quality. Sediment samples were obtained at close depth intervals from boreholes established within pristine areas and those subjected to the preload application. Soil and pore water samples were subjected to solid/solution speciation, moisture contents, soil pH and the Atterberg Limits' analyses using standard analytical techniques and methods. Standpipes were also installed in the boreholes for groundwater sampling and in situ monitoring of water quality parameters. It is shown that the imposition of preload surcharge over pyritic sediment created a reducing environment rich in SO, iron oxide minerals and organic matter. This reducing environment fostered organic carbon catabolism to generate excess pyrite and bicarbonate alkalinity, which would invariably impact adversely on soil quality and plant growth. These were accompanied by increase in pH, dissolved Al, Ca, Mg and K species beneath the surcharge.

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Environmental monitoring and assessment of the water bodies of a pre-construction urban wetland

Cited by 3 publications

References 10 publications

Seasonal and Spatial Variability of Water Quality and Nutrient Removal Efficiency of Restored Wetland: A Case Study in Fujin National Wetland Park, China

Seasonal and Spatial Variability of Water Quality and Nutrient Removal Efficiency of Restored Wetland: A Case Study in Fujin National Wetland Park, China

Towards automation of measurement processes of surface water parameters by a remote-controlled catamaran

Assessing the impact of preload on pyrite-rich sediment and groundwater quality

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