Guiding principles for the development and application of solid-phase phosphorus adsorbents for freshwater ecosystems

Douglas, Grant; Hamilton, David P.; Robb, Malcolm; Pan, Gang; Spears, Bryan M.; Lürling, Miquel

doi:10.1007/s10452-016-9575-2

Cited by 105 publications

(57 citation statements)

References 151 publications

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“…Secondary mechanism examples provide rather cyanostatical effectiveness and include binding of phosphate by mineral-metal compounds that facilitate precipitation on the sediment of negatively charged phosphate with positively charged complexed metals (Fe, Al, La) acting as reactive entities. These P-nutrient-reducing compounds have found wide application in reduction of eutrophication (re-oligotrophication programmes) and are discussed in greater detail elsewhere in this special issue (Douglas et al 2016). Calibrated minimal dosing and awareness of the chemical (pH, redox) lability of the metal-binding substances being used will contribute to improved appreciation of sustainability issues (Spears et al 2013).…”

Section: Conclusion and Discussionmentioning

confidence: 99%

Existing and emerging cyanocidal compounds: new perspectives for cyanobacterial bloom mitigation

et al. 2016

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To help ban the use of general toxic algicides, research efforts are now directed towards the discovery of compounds that are specifically acting as cyanocides. Here, we review the past and look forward into the future, where the less desirable general algicides like copper sulphate, diuron or endothall may become replaced by compounds that show better specificity for cyanobacteria and are biodegradable or transform into non-toxic products after application. For a range of products, we review the activity, the mode of action, effectiveness, durability, toxicity towards non-target species, plus costs involved, and discuss the experience with and prospects for small water volume interventions up to the mitigation of entire lakes; we arrive at recommendations for a series of natural products and extracted organic compounds or derived synthetic homologues with promising cyanocidal properties, and briefly mention emerging nanoparticle applications. Finally, we detail on the recently introduced application of hydrogen peroxide for the selective killing of cyanobacteria in freshwater lakes.

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Section: Conclusion and Discussionmentioning

confidence: 99%

Existing and emerging cyanocidal compounds: new perspectives for cyanobacterial bloom mitigation

et al. 2016

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“…This comprises both the reduction of the nutrient load from the catchment and the inflows to the waterbody . If internal loading is substantial, hypolimnetic aeration , dredging or sediment capping (Douglas et al, 2016) can reduce the release of phosphorus from the sediment. Nevertheless, changes in chlorophyll and abundance of cyanobacteria in lakes where phosphorus in the inflow was reduced show that it may take years before the phytoplankton responds, depending largely on the extent of the decrease in the nutrient load achieved .…”

Section: Prevention and Control Measuresmentioning

confidence: 99%

Toxic cyanobacteria and cyanotoxins in European waters – recent progress achieved through the CYANOCOST Action and challenges for further research

et al. 2017

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This review aims to summarise the outcomes of some recent European research concerning toxic cyanobacteria and cyanotoxins, with an emphasis on developments within the framework of the CYANOCOST Action: COST Action ES1105, Cyanobacterial Blooms and Toxins in Water Resources: Occurrence, Impacts and Management. Highlights of the Action include phycological and ecological studies, development of advanced techniques for cyanotoxin analysis, elucidation of cyanotoxin modes of action, management techniques to reduce cyanobacterial mass development, and research on methods and practices for cyanotoxin removal during drinking water treatment. The authors have identified a number of gaps in knowledge. Proposed directions for future research on toxic cyanobacteria and cyanotoxins are also discussed.

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“…Active capping can create an active phosphorus sink, removing some external loading as well. Most P adsorbents with substantial uptake capacity are generally enriched in calcium, iron, alum, and/or lanthanum (Douglas et al 2016). In shallow lakes with an aerobic bottom sediment, iron is commonly used as a P capping agent due to its low cost.…”

Section: Nutrientsmentioning

confidence: 99%

“…A single big dose might be less effective than smaller doses due to aging of the active compound (de Vicente et al 2008;Jensen et al 2015). Douglas et al (2016) reviewed solid-phase phosphorus adsorbents, categorized in: naturally occurring minerals, soils, suspended particles or earth materials; natural or synthetically produced materials; modified clay mineral or soils; and mining, mineral processing, and industrial by-products. Spears et al (2013) used six industrial waste products and concluded that some of them have P sorption properties similar to those of products that are commercially available.…”

Section: Nutrientsmentioning

confidence: 99%

How to combat cyanobacterial blooms: strategy toward preventive lake restoration and reactive control measures

Stroom

Kardinaal

2016

Aquat Ecol

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Water managers worldwide are facing the serious problem of dense blooms of cyanobacteria in surface waters. In the quest for the optimal method to combat cyanobacterial dominance, many questions and many possible solutions arise. This paper presents a three-phase strategy to fight harmful cyanobacterial proliferation. Water managers who apply this strategy can generate a tailor-made set of measures. The three phases consist of (1) defining the ecological water quality targets of the waterbody in question, (2) assessing its current ecological state, and (3) selecting which measures will yield optimal results. The paper provides assistance in the quantitative diagnosis of the state of both shallow and deep temperate freshwater lakes by means of a lake system analysis, and presents a survey of measures. Measures are divided into two sets. Preventive measures are based on switching to a clear state (shallow lake) or reducing the overall cyanobacterial biomass (deep lake). They are subdivided into nutrient reduction, hydromorphological adjustments, and food web management. Concerning nutrient reduction, in many situations phosphorus management alone should suffice. Nitrogen management can be important to increase the species diversity of macrophytes, or to relieve downstream (marine) consequences. Control measures (including mitigation) have a direct impact on cyanobacterial blooms by biomass removal, flushing, or mixing; however, the number of proven technologies is limited.

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Guiding principles for the development and application of solid-phase phosphorus adsorbents for freshwater ecosystems

Cited by 105 publications

References 151 publications

Existing and emerging cyanocidal compounds: new perspectives for cyanobacterial bloom mitigation

Existing and emerging cyanocidal compounds: new perspectives for cyanobacterial bloom mitigation

Toxic cyanobacteria and cyanotoxins in European waters – recent progress achieved through the CYANOCOST Action and challenges for further research

How to combat cyanobacterial blooms: strategy toward preventive lake restoration and reactive control measures

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