Optimization of Combined Submerged Macrophyte Planting Conditions for Inhibiting Algae by Response Surface Methodology

Wang, Shengnan; Yu, Junxia; Guo, F. C.; Pan, Guoqiang; Zhang, Lin; Hu, Hong-Ying; Lu, Yong

doi:10.3390/w12082093

Cited by 5 publications

(3 citation statements)

References 47 publications

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“…The obtained values of R 2 , adjusted R 2 and predicted R 2 were close to 1, demonstrating a good fitness of the models in the experimental data (Hamad, 2020). "Adeq Precision" quantifies the signal to noise ratio, a ratio greater than 4 is preferred (Al-Baldawi et al, 2014;Bajpai et al, 2020;Wang et al, 2020). The signal to noise ratio achieved in the present study was 21.92 for AC and 31.24 MP, indicating an adequate signal.…”

Section: Fitting and Analysis Of Variance For Response Surface Quadratic Modelssupporting

confidence: 73%

Optimization of Acetaminophen and Methylparaben Removal within Subsurface Batch Constructed Wetland Systems

Mutar¹,

Mohammed²,

Al-Baldawi³

2022

J. Ecol. Eng.

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The response surface methodology accompanied by Central Composite Design (CCD) was employed in this study to optimize the Alternanthera spp-based phytoremediation process for the individual removal of acetaminophen and methylparaben. Two operational variables, including concentration (A) (20, 60,100 mg/L) and sampling time (B) (7, 14, 21, and 35 days) were involved in the study for removal efficiency (Y) as response. CCD had required a total of 18 experiments for each compound. Analysis of variance (ANOVA) was conducted to verify the adequacy of the proposed mathematical models and revealed good agreement with the experimental data. The observed R 2 values (0.9732 and 0.9870), adjusted R 2 (0.9620 and 0.9816) and predicted R 2 (0.9383 and 0.9721) for AC and MP, respectively, indicated that the developed models were significant at the 95% probability level. Concentration factor was found to be insignificant in the mathematical models; in contrast, sampling time was found to be of a crucial role. The removal of AC and MP were 89.23% and 64.48% under optimum conditions of A = 100 mg/L and B = 35 days respectively. The validation test confirmed the predicted results obtained by Central Composite Design, as the removals achieved under optimum conditions were 91.04% and 59.17% for AC and MP, respectively, which were in good agreement with the results proposed by the theoretical design.

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Section: Fitting and Analysis Of Variance For Response Surface Quadratic Modelssupporting

confidence: 73%

Optimization of Acetaminophen and Methylparaben Removal within Subsurface Batch Constructed Wetland Systems

Mutar¹,

Mohammed²,

Al-Baldawi³

2022

J. Ecol. Eng.

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“…First, as major primary producers, submerged macrophytes compete for nutrients, light, and other resources with phytoplankton in lake ecosystems [121]. Second, denitrification might be increased in the submerged macrophyte beds owing to microbe gathering in the rhizosphere [122], intensifying the nitrogen limitation for phytoplankton growth [50,123]. Third, submerged macrophytes could provide refuge against predation pressure for zooplankton (e.g., Cladocera), which could graze small and rapidly growing phytoplankton [41,46].…”

Section: Mechanisms Of Lake Restoration With Submerged Macrophytesmentioning

confidence: 99%

A Bibliometric Analysis of Lake Restoration with Submerged Macrophytes

Gao

2023

Water

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Submerged macrophytes have attracted increasing attention in lake restoration due to the importance of their structuring communities and stabilizing functions in lake ecosystems. However, there is still a lack of systematic reviews on lake restoration with submerged macrophytes. Thus, we performed a systematic review based on a bibliometric analysis via analyzing and visualizing 934 published works from 1996 to 2023 from the Web of Science core collection. Publication characteristics were summarized, and keyword co-occurrence networks, reference co-citation analysis, and keyword burst tests were conducted. Our results suggest that the increasing attention in this field has partly resulted from the many water treatments and scientific schemes in Europe, China, and the USA and extensive international cooperation. The development of this field was divided into three stages based on keyword bursts (e.g., early, turning, and recent stages). Alternative stable states and biomanipulation laid the foundations of this field in the early stage. Progress in the field was discussed based on four aspects, the influence of environmental factors on submerged macrophytes, theory and mechanisms, targets, and evaluation and methods. Therefore, our results provide a new and comprehensive understanding of lake restoration with submerged macrophytes.

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“…Macrophytes have the capability of limiting nutrient run-off in aquatic systems by taking up nutrients on the shoreline as they enter the lake, before they enter the open water zone (Zikey, 2022). Submerged macrophytes can also compete directly with algae for nutrients and light (S. Wang et al, 2020). However, at a smaller lake scale where management occurs, strong year to year variations in cyanobacterial blooms remain challenging to explain and predict (Pick, 2016).…”

Section: Eutrophication and Algal Bloomsmentioning

confidence: 99%

The relationship between water quality and riparian zone land-use variables and macrophyte removal permits issued in between 2013-2020 in the Rideau Canal Waterway

Capy¹

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In the Rideau Canal Waterway, eastern Ontario, residents are required to obtain permits from Parks Canada for macrophyte removal in front of their property for recreational purposes. The goal of this thesis is to determine the strongest environmental predictors of permit number and density in the Rideau Waterway to promote sustainable management of this system. Multiple linear regression models indicated that the best predictors of permit number were percent crop and pasture in the catchment, Secchi depth, algal blooms, catchment area, and total phosphorus (adjusted R 2 value of 0.94 and p-value of 1.952e-05). The strongest predictors of permit density are percent crop and pasture, deviation from circle, status of lakes, chloride, catchment area, and catchment to lake volume (adjusted R 2 value of 0.779 and p-value of 0.006). The results of this thesis research indicate that macrophyte removal permits are issued most often in nutrient rich lakes with greater crop and pasture in their catchments.Firstly, I would like to thank my supervisors Dr. Jesse Vermaire and John Milton for their advice, guidance, and support through this process despite all of the challenges and limitations from the pandemic. I am grateful for the opportunities I was given by Dr.Jesse Vermaire to participate in field work for the Aquatic Ecosystems & Environmental Change (AEEC) Laboratory. I would also like to thank Dr. Chantal Vis and her colleagues from Parks Canada for their advice and feedback for the study undertaken.Thank you to all of the faculty, staff, and graduate students in my program and in my lab that provided academic and emotional support throughout my Master's. I would especially like to thank the other students at the AEEC lab and within the department, specifically Stephanie Lonz, Jessica Sperry, and Eric Guitard, for their continuous support and guidance throughout my degree.

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Optimization of Combined Submerged Macrophyte Planting Conditions for Inhibiting Algae by Response Surface Methodology

Cited by 5 publications

References 47 publications

Optimization of Acetaminophen and Methylparaben Removal within Subsurface Batch Constructed Wetland Systems

Optimization of Acetaminophen and Methylparaben Removal within Subsurface Batch Constructed Wetland Systems

A Bibliometric Analysis of Lake Restoration with Submerged Macrophytes

The relationship between water quality and riparian zone land-use variables and macrophyte removal permits issued in between 2013-2020 in the Rideau Canal Waterway

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