The aim of this paper was to summarize the current knowledge on how physical methods can reduce or control internal P release from sediments in lakes and reservoirs. Particular emphasis is given to the role of internal phosphorus load in fueling cyanobacterial blooms which are predicted to increase in frequency and intensity in response to climate change and eutrophication. We present selective case studies (both successful and unsuccessful) to assess the applicability and efficiency of major physical approaches used for decades to reduce internal loading in different systems of various morphology. In particular, we concentrate on where and when (1) hypolimnetic aeration/oxygenation, (2) hypolimnetic withdrawal and (3) sediment dredging are likely to reduce cyanobacterial blooms and whether these methods have an adverse impact on other organisms. We conclude that each method has its strength and weakness depending on the system considered. Sufficient knowledge of all lake nutrient sources and their dynamics together with detailed lake and sediment characteristics is an essential prerequisite for choosing an appropriate control method. We also report that many experiences demonstrated that a combination of restoration methods is often more successful than a single method.

Controlling internal phosphorus loading in lakes by physical methods to reduce cyanobacterial blooms: a review

Evaluation of sediment capping with active barrier systems (ABS) using calcite/zeolite mixtures to simultaneously manage phosphorus and ammonium release.

Evaluation of simulated dredging to control internal phosphorus release from sediments: Focused on phosphorus transfer and resupply across the sediment-water interface.

Phosphorus sorption and supply from eutrophic lake sediment amended with thermally-treated calcium-rich attapulgite and a safety evaluation

Control and remediation methods for eutrophic lakes in the past 30 years

Influence of Sediment Dredging on Chemical Forms and Release of Phosphorus

为学习沉积在沉积在 denitrification 上挖出的效果的一个实验通过 undredged (控制) 的一个年孵化被执行并且在实验室挖出核心。挖出上面 30 厘米沉积能显著地影响沉积的物理化学的特征。在挖出的沉积的有机物的更少的降级在实验期间被发现。在沉积的 Denitrification 率被乙炔阻塞技术估计，并且从 216 ～ 1027 nmol N2/(g 干燥重量(dw )汯 吗？

Shi-Ming

Papers

Influence of Sediment Dredging on Chemical Forms and Release of Phosphorus

Significance of dredging on sediment denitrification in Meiliang Bay, China： A year long simulation study

Geochemistry of Iron, Sulfur and Related Heavy Metals in Metal-Polluted Taihu Lake Sediments