Phosphorus recovery from municipal wastewater: An integrated comparative technological, environmental and economic assessment of P recovery technologies

The Science of The Total Environment, Journal Year: 2016, Volume and Issue: 571, P. 522 - 542

Published: July 23, 2016

Phosphorus (P) is an essential and limited resource. Municipal wastewater a promising source of P via reuse could be used to replace derived from phosphate rocks. The agricultural use sewage sludge restricted by legislation or not practiced in several European countries due environmental risks posed organic micropollutants pathogens. Several technologies have been developed recent years recover P. However, these target different P-containing flows treatment plants (effluent, digester supernatant, sludge, ash), diverse engineering approaches differ greatly with respect recycling rate, potential removing destroying pollutants, product quality, impact cost. This work compares 19 relevant recovery considering their relationships existing systems. A combination methods, such as material flow analysis, damage units, reference soil method, annuity integrated cost calculation literature study on solubility, fertilizing effects handling recovered materials, evaluate the technical, ecological economic aspects. With regard manifold origins data uncertainty concept validity sources applied. analysis revealed that dissolved produces clean plant-available materials. These techniques may even beneficial technical perspectives under specific circumstances. rates (a maximum 25%) relative plant influent are relatively low. apply complex generally achieve effective removal heavy metals at moderate (~ 40–50% WWTP input) comparatively high costs. Sewage ash most source, 60–90% costs highly depend purity requirements recycled products but can kept low, especially if synergies industrial processes exploited.

Language: Английский

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The Relevance of Phosphorus and Iron Chemistry to the Recovery of Phosphorus from Wastewater: A Review

Environmental Science & Technology, Journal Year: 2015, Volume and Issue: 49(16), P. 9400 - 9414

Published: May 7, 2015

The addition of iron is a convenient way for removing phosphorus from wastewater, but this often considered to limit recovery. Struvite precipitation currently used recover phosphorus, and approach has attracted much interest. However, it requires the use enhanced biological removal (EBPR). EBPR not yet widely applied recovery potential low. Other methods, including sludge application agricultural land or recovering ash, also have limitations. Energy-producing wastewater treatment plants increasingly rely on using iron, problem (as in current processes) subsequent iron. In contrast, efficiently mobilized by natural processes sediments soils. Iron-phosphorus chemistry diverse, many parameters influence binding release redox conditions, pH, presence organic substances, particle morphology. We suggest that poor understanding systems preventing being developed iron-phosphorus rich wastes like municipal sludge. Parameters affect are reviewed here, methods suggested manipulating allow be recovered.

Language: Английский

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Exploring phosphorus fertilizers and fertilization strategies for improved human and environmental health

Biology and Fertility of Soils, Journal Year: 2020, Volume and Issue: 56(3), P. 299 - 317

Published: Jan. 8, 2020

Abstract Mineral phosphorus (P) fertilizers support high crop yields and contribute to feeding the teeming global population. However, complex edaphic processes cause P be immobilized in soil, hampering its timely sufficient availability for uptake by plants. The resultant low use efficiency of current water-soluble creates significant environmental human health problems. Current practices increase have been inadequate curtail these We advocate understanding plant physiological processes, such as requirement, storage excess phytate, mechanisms, identify novel ways designing delivering plants improved uptake. note importance implications contrasting role micronutrients zinc iron stimulating under soil content, while inhibiting fertilization; this could provide an avenue managing different fertilization regimes. argue that improvement nutritional value crops, especially cereals, through reduced phytic acid increased contents should among most important drivers toward development innovative fertilizer products technologies. In paper, we present various pathways argument. Retuning application strategies will fighting hunger micronutrient deficiencies humans. Moreover, direct losses a result absorption

Language: Английский

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Phosphorus flows and balances of the European Union Member States

The Science of The Total Environment, Journal Year: 2015, Volume and Issue: 542, P. 1078 - 1093

Published: Oct. 2, 2015

Language: Английский

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Struvite: a slow-release fertiliser for sustainable phosphorus management?

Plant and Soil, Journal Year: 2015, Volume and Issue: 401(1-2), P. 109 - 123

Published: Dec. 11, 2015

Recycled sources of phosphorus (P), such as struvite extracted from wastewater, have potential to substitute for more soluble manufactured fertilisers and help reduce the long-term threat food security dwindling finite reserves phosphate rock (PR). This study aimed determine whether could be a component sustainable P fertiliser management strategy arable crops.A combination laboratory experiments, pot trials mathematical modelling root system examined release properties commercial fertiliser-grade patterns uptake low-P sandy soil by two different crop types, in comparison inorganic (di-ammonium (DAP) triple super (TSP)).Struvite had greatly enhanced solubility presence organic acid anions; buckwheat, which exudes high level acids, was effective at mobilising than low exuder, spring wheat. Struvite granules placed with seed did not provide same rate supply DAP early growth wheat, but gave equivalent rates uptake, yield apparent recovery harvest, even though only 26 % completely dissolved. Fertiliser mixes containing applied wheat both optimal late season improve overall use efficiency.We conclude that resource savings efficiency benefits utilising recycled slow like offers alternative using conventional, solubility, PR-based fertilisers.

Language: Английский

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Key sustainability challenges for the global phosphorus resource, their implications for global food security, and options for mitigation

Journal of Cleaner Production, Journal Year: 2016, Volume and Issue: 140, P. 945 - 963

Published: July 4, 2016

Language: Английский

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Insight into chemical phosphate recovery from municipal wastewater

The Science of The Total Environment, Journal Year: 2016, Volume and Issue: 576, P. 159 - 171

Published: Oct. 23, 2016

Language: Английский

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Biochar-based slow-release of fertilizers for sustainable agriculture: A mini review

Environmental Science and Ecotechnology, Journal Year: 2022, Volume and Issue: 10, P. 100167 - 100167

Published: March 5, 2022

Increasing global population and decreasing arable land pose tremendous pressures to agricultural production. The application of conventional chemical fertilizers improves production, but causes serious environmental problems significant economic burdens. Biochar gains increasing interest as a soil amendment. Recently, more attentions have been paid biochar-based slow-release (SRFs) due the unique properties biochar. This review summarizes recent advances in development, synthesis, application, tentative mechanism SRFs. development mainly undergoes three stages: (i) amendment using biochar, (ii) interactions between nutrients (iii) Various methods are proposed improve fertilizer efficiency majorly including in-situ pyrolysis, co-pyrolysis, impregnation, encapsulation, granulation. Considering distinct features different methods, integrated promising for fabricating effective in-depth understanding nutrient loading slow release is discussed based on current knowledge. Additionally, perspectives challenges potential SRFs described. Knowledge surveyed from this indicates that applying viable way promoting sustainable agriculture.

Language: Английский

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Anthropogenic global shifts in biospheric N and P concentrations and ratios and their impacts on biodiversity, ecosystem productivity, food security, and human health

Global Change Biology, Journal Year: 2020, Volume and Issue: 26(4), P. 1962 - 1985

Published: Jan. 8, 2020

Abstract The availability of carbon (C) from high levels atmospheric dioxide (CO 2 ) and anthropogenic release nitrogen (N) is increasing, but these increases are not paralleled by in phosphorus (P). current unstoppable changes the stoichiometries C N relative to P have no historical precedent. We describe fluxes over last five decades that led asymmetrical inputs biosphere. identified widespread rapid N:P ratios air, soil, water, organisms important consequences structure, function, biodiversity ecosystems. A mass‐balance approach found combined limited was likely reduce storage natural ecosystems during remainder 21st Century, projected crop yields Millennium Ecosystem Assessment indicated an increase nutrient deficiency developing regions if access fertilizer limited. Imbalances ratio would negatively affect human health, food security, global economic geopolitical stability, with feedbacks synergistic effects on drivers environmental change, such as increasing CO , climatic warming, pollution. summarize potential solutions for avoiding negative impacts imbalances environment, biodiversity, climate health.

Language: Английский

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Stewardship to tackle global phosphorus inefficiency: The case of Europe

AMBIO, Journal Year: 2015, Volume and Issue: 44(S2), P. 193 - 206

Published: Feb. 15, 2015

The inefficient use of phosphorus (P) in the food chain is a threat to global aquatic environment and health well-being citizens, it depleting an essential finite natural resource critical for future security ecosystem function. We outline strategic framework 5R stewardship (Re-align P inputs, Reduce losses, Recycle bioresources, Recover wastes, Redefine systems) help identify deliver range integrated, cost-effective, feasible technological innovations improve efficiency society reduce Europe's dependence on imports. Their combined adoption facilitated by interactive policies, co-operation between upstream downstream stakeholders (researchers, investors, producers, distributors, consumers), more harmonized approaches accounting would maximize environmental benefits competitive, circular, sustainable European economy. case Europe provides blueprint stewardship.

Language: Английский

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