Water Quality Restoration of a Drinking Water
Outlet Area in a Eutrophic Reservoir Using
Hypolimnetic Oxygenation in Southwest China

Chen, Lan; Yongxue, Ji; Yang, Han–Soeb

doi:10.15244/pjoes/124776

Cited by 3 publications

(2 citation statements)

References 48 publications

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“…Circular or linear bubble plume diffusers are a mechanism to oxygenate the hypolimnion using a blend of water and gas called a plume [35]. Bubble plume diffusers are one of the most popular technologies for hypolimnetic oxygenation.…”

Section: Circular or Linear Bubble Plume Diffusersmentioning

confidence: 99%

“…The rising columns of bubbles are supplemented with water to form a combined bubble and water plume [36] and have the ability to improve water quality in the sub-deep water system through hypolimnion oxygenation [33]. For instance, a study in Arha Reservoir, China, observed that placing circular bubble plume diffusers at the drinking water outlet area resulted in reductions of 48.9% in Mn concentration [35].…”

Section: Circular or Linear Bubble Plume Diffusersmentioning

confidence: 99%

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In-Lake Mechanisms for Manganese Control—A Systematic Literature Review

Semasingha

Rousso

2023

Sustainability

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An elevated concentration of manganese (Mn) in lakes is a common water quality problem faced by many water utilities. Thermal stratification is a natural phenomenon that influences the Mn concentration in lakes and can exacerbate Mn accumulation in surface water without external loading sources. While several treatment methods can be utilized to treat Mn in drinking water treatment plants, in-lake control mechanisms can be a proactive and efficient strategy for Mn control by reducing water treatment complexities and costs. Despite previous research pointing to the benefits of in-lake Mn control, the feasibility and effectiveness of the various in-lake Mn control mechanisms in lakes in different environmental conditions remains unclear. To identify and consolidate the existing research on the topic, a comprehensive, systematic literature review (SLR) was conducted. The SLR identified case studies of in-lake Mn control mechanisms in thermally stratified lakes. The identified case studies were grouped into three categories based on their goals: identification of Mn behaviour in lakes, built engineering implementations and digital solutions for process optimization and anticipation. It is critical that a site-specific understanding of Mn dynamics is obtained before implementing any built or digital solutions, because lake specific dynamics can significantly impact a solution’s performance. While most reviewed mechanisms were successful in decreasing high Mn concentrations, a lack of financial and environmental cost–benefit analyses for most in-lake Mn control mechanisms was observed, which is crucial for their adoption by water authorities. The rationale of this SLR provides a summary of the benefits and limitations of the most common in-lake Mn control mechanisms, the enabling the conditions for their implementation, and the knowledge gaps and future direction for research on the topic, being valuable to support informed decision-making by water authorities managing waterbodies with high Mn concentrations.

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Section: Circular or Linear Bubble Plume Diffusersmentioning

confidence: 99%

Section: Circular or Linear Bubble Plume Diffusersmentioning

confidence: 99%

In-Lake Mechanisms for Manganese Control—A Systematic Literature Review

Semasingha

Rousso

2023

Sustainability

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Past environmental changes: using sedimentary photosynthetic pigments to enhance subtropical reservoir management

Cardoso-Silva,

Mizael,

Frascareli

et al. 2024

Environ Sci Pollut Res

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Practices for Eutrophic Shallow Lake Water Remediation and Restoration: A Critical Literature Review

Pereira

Mulligan

2023

Water

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Lake water has been impaired with nutrients due to the synergic action of human-made activities and climate change. This situation is increasing eutrophication around the globe faster than before, causing water degradation, loss of its uses, and water-associated economic and health effects. Following the Sustainable Development Goal 6, more precisely its target 6.6, nations are already behind schedule in protecting and restoring water-related ecosystems (i.e., rivers and lakes). As concerns with eutrophication are escalating, eutrophic water remediation practices are the keys for restoring those lake waters. Diverse methodologies have been investigated focusing on the nutrient that limit primary productivity (i.e., phosphorus), but few have been applied to in-lake eutrophic water remediation. Thus, the objective of this paper is to provide an overview and critical comments on approaches and practices for facing eutrophic lake water remediation. Information on the successful cases and possible challenges/difficulties in the peer-reviewed literature are presented. This should be useful for supporting further remediation project selection by the stakeholders involved. In summary, for a successful and durable restoration project, external nutrient inputs need to be managed, followed by holistic and region-specific methods to attenuate internal legacy nutrients that are continually released into the water column from the sediment. When aligned well with stakeholder participation and continuous monitoring, these tools are the keys to long-lasting water restoration.

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Water Quality Restoration of a Drinking Water Outlet Area in a Eutrophic Reservoir Using Hypolimnetic Oxygenation in Southwest China

Cited by 3 publications

References 48 publications

In-Lake Mechanisms for Manganese Control—A Systematic Literature Review

In-Lake Mechanisms for Manganese Control—A Systematic Literature Review

Past environmental changes: using sedimentary photosynthetic pigments to enhance subtropical reservoir management

Practices for Eutrophic Shallow Lake Water Remediation and Restoration: A Critical Literature Review

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