Phosphorus recovery through struvite crystallisation: Recent developments in the understanding of operational factors

Journal of Environmental Management, Journal Year: 2019, Volume and Issue: 248, P. 109254 - 109254

Published: July 12, 2019

Language: Английский

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Overview of recent developments of resource recovery from wastewater via electrochemistry-based technologies

The Science of The Total Environment, Journal Year: 2020, Volume and Issue: 757, P. 143901 - 143901

Published: Dec. 3, 2020

Language: Английский

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Global actions for a sustainable phosphorus future

Nature Food, Journal Year: 2021, Volume and Issue: 2(2), P. 71 - 74

Published: Feb. 18, 2021

Language: Английский

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A systematic comparison of commercially produced struvite: Quantities, qualities and soil-maize phosphorus availability

The Science of The Total Environment, Journal Year: 2020, Volume and Issue: 756, P. 143726 - 143726

Published: Nov. 24, 2020

Production of struvite (MgNH4PO4·6H2O) from waste streams is increasingly implemented to recover phosphorus (P), which listed as a critical raw material in the European Union (EU). To facilitate EU-wide trade P-containing secondary materials such struvite, EU issued revised fertilizer regulation 2019. A comprehensive overview supply and its quality presently missing. This study aimed: i) determine current production volumes, ii) evaluate all legislated physicochemical characteristics pathogen content against newly set regulatory limits, iii) compare not-regulated characteristics. It estimated that 2020, between 990 1250 ton P are recovered EU. Struvite 24 plants, accounting for 30% 80 installations worldwide was sampled. Three samples failed legal limits; one had <7% three exceeded organic carbon 3% dry weight (DW). Mineralogical analysis revealed six 80–90% DW, 13 >90% DW. All showed heavy metal below limits. Microbiological analyses indicated may exceed certain Differences morphology particle size distribution were observed sourced digestate (rod shaped; transparent; 82 mass% < 1 mm), dewatering liquor (spherical; opaque; 65 1–2 mm) effluent upflow anaerobic sludge blanket reactor processing potato wastewater 51 mm 34 > 2 mm). uniform soil-plant P-availability pattern 3.5–6.5 mg P/L soil/d over 28 days sampling period observed. No differences plant biomass yield In conclusion, results highlight suitability most enter market.

Language: Английский

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Amplifying Progress toward Multiple Development Goals through Resource Recovery from Sanitation

Environmental Science & Technology, Journal Year: 2017, Volume and Issue: 51(18), P. 10765 - 10776

Published: Sept. 6, 2017

The United Nations' Sustainable Development Goals (SDGs) recognize that current sanitation gaps must be closed to better serve those without access safely managed systems (Target 6.2: universal coverage) and connected sewers wastewater treatment 6.3: halving the proportion of untreated wastewater). Beyond mitigating environmental health concerns, implementing resource recovery could simultaneously improve availability agricultural nutrients (SDG 2) household energy 7). This study estimates potential for global, regional, country-level impact nutrient electricity use through 2030. We distinguish impacts from newly installed (to achieve coverage), treated halve wastewater), existing system replacement, while also considering urban rural disparities spatial colocation with needs. work points toward country-specific strategies deriving greatest benefit investments identifying overarching trends guide international research efforts. Globally, gains are an order magnitude larger than (a small fraction total energy), considerable possible in least-developed countries, six which double or offset all projected systems.

Language: Английский

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Addressing temporal considerations in life cycle assessment

The Science of The Total Environment, Journal Year: 2020, Volume and Issue: 743, P. 140700 - 140700

Published: July 9, 2020

In life cycle assessment (LCA), temporal considerations are usually lost during the inventory calculation, resulting in an aggregated "snapshot" of potential impacts. Disregarding such has previously been underlined as important source uncertainty, but a growing number approaches have developed to tackle this issue. Nevertheless, their adoption by LCA practitioners is still uncommon, which raises concerns about representativeness current results. Furthermore, lack consistency can be observed used terms for discussions on considerations. The purpose review thus search common ground and identify implementation challenges while also proposing development pathways. This paper introduces glossary most frequently related build understanding key concepts facilitate discussions. A performed solutions different phases (goal scope definition, analysis impact assessment), analysing each consideration its relevant conceptual developments level operationalisation. We then present stepwise approach pathways address dynamic (DLCA). Three focal areas integrating within framework discussed: i) define over distributions emissions occurring, ii) use calendar-specific information model systems associated impacts, iii) select appropriate resolution describe variations flows characterisation factors. Addressing more DLCA expected reduce uncertainties increase results, possible trade-offs between additional data collection efforts increased value results from DLCAs should kept mind.

Language: Английский

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Global Opportunities to Increase Agricultural Independence Through Phosphorus Recycling

Earth s Future, Journal Year: 2019, Volume and Issue: 7(4), P. 370 - 383

Published: March 14, 2019

Abstract Food production hinges largely upon access to phosphorus (P) fertilizer. Most fertilizer P used in the global agricultural system comes from mining of nonrenewable phosphate rock deposits located within few countries. However, contained livestock manure or urban wastes represents a recyclable source P. To inform development recycling technologies and policies, we examined subnational, national, spatial patterns for two intersections land use affording high potential: (a) manure‐rich cultivated areas (b) populous areas. In turn, overlap between potential nation‐level import dependency. Populous were less abundant globally than areas, reflecting greater segregation crops people compared livestock, especially Americas. Based on hexagonal grid (290‐km 2 cell area), disproportionately large shares subnational “hot spots” occurred India, China, Southeast Asia, Europe, parts Africa. Outside most remaining nations that had relatively imports (net import:consumption ratios ≥0.4) substantial increases demand 2000s (2002–2006) 2010s (2010–2014). Manure‐rich cells (those above 75th percentiles both cropland extent) represented 12% after excluding cropless cells. Annually, sum animal was at least 5 times human excreta, among ratio frequently higher (median = 8.9). The abundance hot spots have depended experienced rising could prove useful developing local sources maintaining independence.

Language: Английский

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Characterization of phosphorus species distribution in waste activated sludge after anaerobic digestion and chemical precipitation with Fe3+ and Mg2+

Chemical Engineering Journal, Journal Year: 2019, Volume and Issue: 373, P. 1279 - 1285

Published: May 22, 2019

Language: Английский

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New challenges of food security in Northwest China: Water footprint and virtual water perspective

Journal of Cleaner Production, Journal Year: 2019, Volume and Issue: 245, P. 118939 - 118939

Published: Oct. 22, 2019

Language: Английский

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A state-of-the-art review on producing engineered biochar from shellfish waste and its application in aquaculture wastewater treatment

Chemosphere, Journal Year: 2021, Volume and Issue: 288, P. 132559 - 132559

Published: Oct. 14, 2021

Language: Английский

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