Nutrient recovery from municipal solid waste leachate in the scope of circular economy: Recent developments and future perspectives

Erşahin, Mustafa Evren; Cicekalan, Busra; Cengiz, Ali Izzet; Zhang, Xuedong; Özgün, Hale

doi:10.1016/j.jenvman.2023.117518

Cited by 20 publications

(14 citation statements)

References 123 publications

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“…However, the authors suggested an economic feasibility assessment to evaluate the full-scale applicability of such a recovery method. Moreover, besides the economic feasibility, it is suggested in the literature to conduct field tests in order to evaluate the crop yield and thus the substitution potential with commercial synthetic fertilizers of such an ammonium-rich recovery-based fertilizer (Ersahin et al 2023). Treatment performance observed in the studies conducted on co-digestion by AnMBRs is given in Table 1.…”

Section: Sludge Streammentioning

confidence: 99%

“…Therefore, membrane pressure and permeate flux should be continuously monitored during the co-digestion applications by AnMBRs. Li et al ( 2020) operated an AnMBR system around 27 g/L of MLSS concentration and at a flux of 5 LMH , and PO 4 −3 ions existed at neutral pH ranges (Ersahin et al 2023). High concentrations of phosphorus in the feedstock of co-digestion applications can cause struvite precipitation in pipelines of AnMBR systems.…”

Section: Sludge Streammentioning

confidence: 99%

“…TSS-free content and high nutrient concentration in the AnMBR permeate from co-digestion applications can be utilized within the microalgae cultivation which is a promising concept in shifting circular economy in WWTPs. Ersahin et al (2023) recently suggested using AnMBR for the co-digestion of municipal solid waste leachate (MSWL) and FW. It was indicated that various complementary properties of these co-substrates can improve the process performance.…”

Section: Challenges and Future Perspectivesmentioning

confidence: 99%

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Enhanced energy recovery in municipal wastewater treatment plants through co-digestion by anaerobic membrane bioreactors: current status and future perspectives

Cengiz,

Guven,

Ozgun

et al. 2024

Rev Environ Sci Biotechnol

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Today, the transition to renewable energy from conventional energy practices is more important than ever to establish energy security and mitigate climate change. The wastewater treatment plants (WWTP) consume a remarkable amount of energy and cause significant greenhouse gas emissions. The energy balance of WWTP can be improved by implementing energy-efficient applications such as anaerobic digestion. However, most of the existing WWTPs utilize only sewage sludge in conventional anaerobic digesters (CAD) which results in low biogas generation. Generally, co-digestion is indicated as an effective solution for the low biogas generation faced in mono-digestion. Moreover, recently, anaerobic membrane bioreactors (AnMBR) have been promoted as a prominent alternative to CADs. This paper overviews the current situation of co-digestion applications by AnMBRs for municipal WWTPs. Furthermore, the environmental and economic aspects of these applications were reviewed. Lastly, challenges and future perspectives related to the co-digestion applications by AnMBR were thoroughly discussed. Graphical Abstract

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Section: Sludge Streammentioning

confidence: 99%

Section: Sludge Streammentioning

confidence: 99%

Section: Challenges and Future Perspectivesmentioning

confidence: 99%

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Enhanced energy recovery in municipal wastewater treatment plants through co-digestion by anaerobic membrane bioreactors: current status and future perspectives

Cengiz,

Guven,

Ozgun

et al. 2024

Rev Environ Sci Biotechnol

Self Cite

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“…Undoubtedly, the Russian-Ukrainian conflict affects energy supply chains, both directly and indirectly. This situation has broad implications for the global economy, and the agricultural sector is particularly sensitive to it [24]. Agriculture is a highly energydependent sector, especially in developed regions, where mechanization and the application of modern technology have enabled significant increases in efficiency and productivity [25].…”

Section: Consequences Of the Russian Military Aggression In Ukraine F...mentioning

confidence: 99%

Challenges to Food Security in the Middle East and North Africa in the Context of the Russia–Ukraine Conflict

Kozielec,

Piecuch,

Daniek

et al. 2024

Agriculture

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In this article, the impact of the Russia–Ukraine conflict on food security in the Middle East and North Africa (MENA) region is analyzed. With Ukraine being recognized as one of the major global grain producers and exporters, the conflict is seen as posing a significant challenge to MENA countries, which are heavily dependent on grain imports from Ukraine. The importance of global linkages in food supply chains and their influence on regional food security is highlighted in this context. Utilizing secondary data from 2002 to 2021 obtained from the United Nations Food and Agriculture Organization (FAO), the study focuses on demography and food security, analyzing how these factors intertwine with grain export dynamics. The escalating hostilities have disrupted transportation routes, damaged infrastructure, and hindered logistics, resulting in substantial export volume reductions. Geopolitical tensions have exacerbated these effects, diminishing confidence among MENA grain importers. The study highlights how these disruptions have influenced global supply chains, prices, and agricultural product availability, with a specific focus on the MENA region’s challenges in food security, compounded by conflicts, climate change, and import dependence. A detailed demographic analysis reveals the impact of population changes on food demand and distribution, offering insights into how population growth and urbanization, alongside shifts in malnutrition and obesity rates, affect food security. The study concludes that the MENA region’s increasing reliance on food imports, coupled with climatic and political variabilities, underscores its growing vulnerability to global supply chain disruptions and the need for robust strategies to address these challenges.

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“…The nutrients in solid waste and waste water (WW) streams are considered as raw material for obtaining Bio-based fertilisers (BBFs) to replace mineral-based fertilisers. The feedstock [5] can be anything from solid (all ashes with phosphorus (P) content >7%, precipitated phosphate salts (struvite [6] (after calcining to remove organic contaminants, with ammonia recovery), calcium phosphate), food waste, food industrial by-products (food processing wastes) or bone meal, secondary materials e.g. wood chips, organic fibres, biomass ash, sewage sludge digestates, ashes from sewage sludge incineration or liquid waste streams, thought attempts have shifted towards the valorisation of nutrient-based, commercially significant products found in WW streams.…”

Section: Introductionmentioning

confidence: 99%

Nanofiltration and selective crystallisation as technologies for the recovery of chemicals from seawater desalination brine to be used as ingredients for Bio-based fertilisers

Athanasoulia,

Kyriazi,

Katsiolis

et al. 2023

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The majority of companies that operate desalination units produce significant quantities of brine, a hypersaline product whose disposal in the sea contributes to the degradation of local fauna and flora. The proposed process for the valorisation of seawater brine and recovery of high purity water consists of two precipitation steps for the recovery of Mg(OH)2 and CaCO3. After pH conditioning, the brine (without Mg2+ and Ca2+) is led to Nanofiltration unit for Na2SO4 separation from the NaCl - KCl rich stream. Monovalent salt stream is further concentrated by Multiple Effect Distillation evaporator and crystallizer and KCl is separated from NaCl by flotation using Sodium Dodecyl Sulfate as floating agent. The aforementioned micronutrients have readily been tested for their part in enhancing the agronomic performance of fertilising products, so they possess market potential to support local/national/European fertilisation purposes. Last but not least, such a nutrient recovery approach can ensure capital recovery within the expected time limitations of an investment and in some cases offset completely the treatment cost.

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Nutrient recovery from municipal solid waste leachate in the scope of circular economy: Recent developments and future perspectives

Cited by 20 publications

References 123 publications

Enhanced energy recovery in municipal wastewater treatment plants through co-digestion by anaerobic membrane bioreactors: current status and future perspectives

Enhanced energy recovery in municipal wastewater treatment plants through co-digestion by anaerobic membrane bioreactors: current status and future perspectives

Challenges to Food Security in the Middle East and North Africa in the Context of the Russia–Ukraine Conflict

Nanofiltration and selective crystallisation as technologies for the recovery of chemicals from seawater desalination brine to be used as ingredients for Bio-based fertilisers

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