ACS Sustainable Resource Management最新文献_第4页

Computation-Guided Removal of 6PPD from End-of-Life Waste Tires 在计算指导下从报废废轮胎中去除 6PPD

ACS Sustainable Resource Management Pub Date : 2024-10-02 DOI: 10.1021/acssusresmgt.4c0030710.1021/acssusresmgt.4c00307

Pooja Bhalode, Sean Najmi and Dionisios Vlachos*,

{"title":"Computation-Guided Removal of 6PPD from End-of-Life Waste Tires","authors":"Pooja Bhalode, Sean Najmi and Dionisios Vlachos*, ","doi":"10.1021/acssusresmgt.4c0030710.1021/acssusresmgt.4c00307","DOIUrl":"https://doi.org/10.1021/acssusresmgt.4c00307https://doi.org/10.1021/acssusresmgt.4c00307","url":null,"abstract":"The increasing rate of fish morbidity and grave concerns regarding the long-term implications on human health with exposure to N-(1,3-dimethylbutyl)-N′-phenyl-p-phenylenediamine (6PPD) from waste tires have brought to light the urgency to isolate this compound in the environment. Toward this end, we focus on removing 6PPD from waste tires by using solvent-based extraction. However, a major challenge in solvent-based extraction is identifying a conducive solvent that is nontoxic, efficient, and economically and environmentally feasible. Thus, we developed a physics-informed computational methodology for identifying conducive solvents to extract 6PPD from waste tires. The methodology spans various scales from quantum mechanical calculations to process development and environmental impact. Starting with a database of 2000+ solvents, we sequentially screened the database to identify 7 candidates. This was followed by a detailed investigation of these candidates from economic and environmental perspectives. We subsequently performed experimental verification of these solvents for the extraction of 6PPD from crumb rubber using batch microwave-assisted extraction. The developed physics-based methodology could be applied to solvent selection in other applications as well.","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"1 10","pages":"2276–2283 2276–2283"},"PeriodicalIF":0.0,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142517282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Carbon-Resource Recovery from Vinyl Polymers of Cyclic Ketene Acetal Esters Using High-Temperature Water 利用高温水从环烯酮缩醛酯乙烯聚合物中回收碳资源

ACS Sustainable Resource Management Pub Date : 2024-10-01 DOI: 10.1021/acssusresmgt.4c0026010.1021/acssusresmgt.4c00260

Yasuhiro Kohsaka*, Akane Kazama, Keigo Matsuo, Shigeru Deguchi and Mitsumasa Osada*,

{"title":"Carbon-Resource Recovery from Vinyl Polymers of Cyclic Ketene Acetal Esters Using High-Temperature Water","authors":"Yasuhiro Kohsaka*, Akane Kazama, Keigo Matsuo, Shigeru Deguchi and Mitsumasa Osada*, ","doi":"10.1021/acssusresmgt.4c0026010.1021/acssusresmgt.4c00260","DOIUrl":"https://doi.org/10.1021/acssusresmgt.4c00260https://doi.org/10.1021/acssusresmgt.4c00260","url":null,"abstract":"Vinyl polymer prepared from 2-methylene-4H-benzo[d][1,3]dioxin-4-one (MBDO), a cyclic ketene acetal ester, is a chemically recyclable polymer that is hydrolyzed to salicylic acid (SA) and acetic acid (AA). Despite this potential, the polymer, poly-MBDO, required a strong acid or base in organic solvent for the hydrolysis. In this study, we report the quantitative conversion of poly-MBDO to phenol by treatment in high-temperature water. Hydrolysis of poly-MBDO afforded SA, which underwent rapid decarboxylation to phenol. For example, poly-MBDO quantitatively afforded phenol upon heating in water at 300 °C for 5 min and freeze-drying. Although the hydrolysis of the main chain was incomplete, the products were volatile and removed by drying the reaction mixture, leaving the residue of pure phenol. Since SA is industrially synthesized from phenol and CO2, the synthesis of poly-MBDO from phenol is in principle possible. The quantitative conversion of poly-MBDO to phenol can also be considered as carbon-resource recovery, since phenol is a raw material for various fine chemicals.The development of degradable polymers and their degradation methods are important for resource recovery. Herein, phenol was quantitatively recovered from a vinyl polymer of cyclic ketene acetals using high-temperature water.","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"1 10","pages":"2234–2240 2234–2240"},"PeriodicalIF":0.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acssusresmgt.4c00260","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142516909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fireside Chat with Benjamin William Cashore: The Role of National Policies in Driving Sustainable Development of Vital Resources 与本杰明-威廉-卡肖尔的炉边谈话：国家政策在推动重要资源可持续发展方面的作用

ACS Sustainable Resource Management Pub Date : 2024-10-01 DOI: 10.1021/acssusresmgt.4c0039510.1021/acssusresmgt.4c00395

Say Chye Joachim Loo*, and , Ivet Ferrer,

引用次数: 0

Enhanced Aqueous Photo-Degradation of Ciprofloxacin and Tetracycline Using Ag-Decorated ZnO Plasmonic Catalyst 使用银析出氧化锌等离子催化剂增强环丙沙星和四环素的水光降解能力

ACS Sustainable Resource Management Pub Date : 2024-09-30 DOI: 10.1021/acssusresmgt.4c0031810.1021/acssusresmgt.4c00318

Shirley P. Onkani*, Samson O. Akpotu, Paul N. Diagboya*, Fanyana Mtunzi and Emmanuel Osabohien,

{"title":"Enhanced Aqueous Photo-Degradation of Ciprofloxacin and Tetracycline Using Ag-Decorated ZnO Plasmonic Catalyst","authors":"Shirley P. Onkani*, Samson O. Akpotu, Paul N. Diagboya*, Fanyana Mtunzi and Emmanuel Osabohien, ","doi":"10.1021/acssusresmgt.4c0031810.1021/acssusresmgt.4c00318","DOIUrl":"https://doi.org/10.1021/acssusresmgt.4c00318https://doi.org/10.1021/acssusresmgt.4c00318","url":null,"abstract":"One major group of aqueous emerging contaminants is antibiotics. The occurrence in potable water is increasing, and their presence has several unintended consequences, including antibiotic resistance. This has led to over seven hundred thousand deaths annually, a value projected to hit 10 million by 2050, hence the need for their removal. Most current potable water treatment technologies are not well suited to antibiotic elimination. Hence, photocatalytic degradation was studied here. A comparative photo-degradation of two antibiotics, ciprofloxacin (CPF) and tetracycline (TC), was investigated using a ZnO photocatalyst and its Ag-doped (2.5%, 5%, and 7.5%) species. The Ag-doping did not significantly affect the ZnO crystal structure but enhanced the specific surface area and pore size values and lowered the band gap energies. The 2.5 wt % Ag-ZnO expressed the best properties and exhibited up to 50% and 43% enhancement in the degradation of CPF and TC, respectively, compared to the pristine ZnO photocatalysts. It exhibited excellent reusability, retaining ∼82% and 91% of the initial degradation of CPF and TC, respectively, after four cycles. The observed optimum parameters for the effective degradation of both antibiotics are a mass of ∼35 mg at pH 9 (alkaline medium) using a concentration of 12 mg/L in a solution volume of 350 mL over a time range of 120 min. The 2.5 wt % Ag-ZnO is a promising applicable material for potable water treatment.After comparative photo-degradation of two antibiotics, ciprofloxacin and tetracycline, using a ZnO photocatalyst and its Ag-doped species, 2.5 wt % Ag-ZnO was deemed a promising applicable material for potable water treatment.","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"1 10","pages":"2294–2303 2294–2303"},"PeriodicalIF":0.0,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acssusresmgt.4c00318","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142517767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phosphorus Recovery and Heavy Metal Removal Potential from Sewage Sludge-Derived Hydrochar with Activated Alumina 利用活性氧化铝从污水污泥产生的水炭中回收磷和去除重金属的潜力

ACS Sustainable Resource Management Pub Date : 2024-09-25 DOI: 10.1021/acssusresmgt.4c0017310.1021/acssusresmgt.4c00173

Mingxin Xu, Donghai Xu*, Peiyao Zheng, Huanteng Liu, Yu Wang and Youwei Zhi,

{"title":"Phosphorus Recovery and Heavy Metal Removal Potential from Sewage Sludge-Derived Hydrochar with Activated Alumina","authors":"Mingxin Xu, Donghai Xu*, Peiyao Zheng, Huanteng Liu, Yu Wang and Youwei Zhi, ","doi":"10.1021/acssusresmgt.4c0017310.1021/acssusresmgt.4c00173","DOIUrl":"https://doi.org/10.1021/acssusresmgt.4c00173https://doi.org/10.1021/acssusresmgt.4c00173","url":null,"abstract":"Sludge-derived hydrochar is rich in phosphorus (P), and heavy metals are also present. Hence, fully recovering P while removing heavy metals as much as possible is a key part of ensuring sustainable P resource recycling and utilization. Citric acid, activated alumina, and NaOH were separately selected as acid extraction, adsorbent, and desorbent for the first time to conduct P recovery from hydrochar. The effects of the adsorbent dosage, initial P concentration, and time on P adsorption were investigated. Kinetics and adsorption isotherm models were employed to analyze the adsorption data. Various characterization techniques were comprehensively applied to further elucidate the adsorption mechanisms. The results showed that the P adsorption rate was positively correlated with the dosage but negatively correlated with the initial P concentration during the experimental parameter range. The P adsorption capacity varied inversely with the adsorption rate. Moreover, at 825 mol·L–1 P and 0.5 g adsorbent dosage conditions, the maximum adsorption capacity was achieved (7.3 mg·g–1) within 30 min with an 80.2% P adsorption rate at equilibrium (48 h). The P recovery rate could reach 72.6%, with the removal of Zn, Mn, and Cr exceeding 99%. The corresponding mechanisms involve ligand exchange, electrostatic attraction, anion exchange, and surface precipitation.","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"1 10","pages":"2194–2202 2194–2202"},"PeriodicalIF":0.0,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142550384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-Sulfur-Content Materials Derived from Postconsumer Polystyrene Wastes: Thermomechanical Properties, Environmental Impacts, and Microstructural Insights 从消费后聚苯乙烯废料中提取的高硫含量材料：热力学性质、环境影响和微观结构见解

ACS Sustainable Resource Management Pub Date : 2024-09-25 DOI: 10.1021/acssusresmgt.4c0008510.1021/acssusresmgt.4c00085

Shalini K. Wijeyatunga, Andrew G. Tennyson* and Rhett C. Smith*,

{"title":"High-Sulfur-Content Materials Derived from Postconsumer Polystyrene Wastes: Thermomechanical Properties, Environmental Impacts, and Microstructural Insights","authors":"Shalini K. Wijeyatunga, Andrew G. Tennyson* and Rhett C. Smith*, ","doi":"10.1021/acssusresmgt.4c0008510.1021/acssusresmgt.4c00085","DOIUrl":"https://doi.org/10.1021/acssusresmgt.4c00085https://doi.org/10.1021/acssusresmgt.4c00085","url":null,"abstract":"Postconsumer polystyrene (PS) wastes are a major contributor to microplastic contamination of the biosphere, which could be reduced or eliminated by developing strategies to upcycle these wastes into useful materials. Four postconsumer PS waste streams from flatware (PSF), cups (PSC), lids (PSL), and packaging materials (PSP), as well as a mixture of all four streams (PSM), were reacted with elemental sulfur at 230 °C to afford the corresponding high-sulfur-content materials (HSMs) PSF90, PSC90, PSL90, PSP90, and PSM90, respectively. Glass transitions in these HSMs were observed at temperatures ranging from −36 to −39 °C, with these values being characteristic of oligo/polysulfide chains. Compressional and flexural strength measurements revealed that these HSMs were competitive with ordinary Portland cement and C62 Brick. To gain insight into the microstructural features within these HSMs, cumene was reacted with sulfur at 230 °C and then depolymerized with LiAlH4, yielding small-molecule products amenable to GC-MS analysis. These reactivity studies provided compelling evidence that PSF90, PSC90, PSL90, PSP90, and PSM90 contain the expected oligo/polysulfide cross-links between PS chains at 3° benzylic and 2° aliphatic carbons in addition to the formation of benzothiophene moieties.","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"1 10","pages":"2173–2183 2173–2183"},"PeriodicalIF":0.0,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142550430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Process Optimization for Gangue Removal from Low-Grade Iron Ore by a Flow-Type Reactor with a NaOH Solution 用 NaOH 溶液流式反应器从低品位铁矿石中去除矸石的工艺优化

ACS Sustainable Resource Management Pub Date : 2024-09-16 DOI: 10.1021/acssusresmgt.4c0008610.1021/acssusresmgt.4c00086

Yuuki Mochizuki, Benchao Su, Kenichi Higuchi and Naoto Tsubouchi*,

{"title":"Process Optimization for Gangue Removal from Low-Grade Iron Ore by a Flow-Type Reactor with a NaOH Solution","authors":"Yuuki Mochizuki, Benchao Su, Kenichi Higuchi and Naoto Tsubouchi*, ","doi":"10.1021/acssusresmgt.4c0008610.1021/acssusresmgt.4c00086","DOIUrl":"https://doi.org/10.1021/acssusresmgt.4c00086https://doi.org/10.1021/acssusresmgt.4c00086","url":null,"abstract":"This research aims to develop technology that can improve low-grade iron ore containing a large amount of α-FeOOH and gangue to the same level as the high-grade iron ores that are conventionally used. The main goal is to optimize the alkaline hydrothermal treatment conditions for iron ore when using a flow-type reactor for constructing a development framework for an upgrading process for low-grade iron ore. Gangue removal extents during 5 M NaOH hydrothermal treatment increased with increasing treatment temperature, with around 80% of Si, Al, and P removed by treatment at 250 °C. The removal extents also increased with increasing NaOH concentration, decreasing particle size, and decreasing solid-liquid ratio. The ore species was found to have virtually no effect on gangue removal by alkaline hydrothermal treatment. Based on the results obtained, the optimal parameters for gangue removal were a particle size of <1000 μm, a solvent concentration of >0.1 M, and a heating temperature of 250 °C. The FeOOH present in the iron ore changed to Fe2O3 after alkaline hydrothermal treatment. Furthermore, this method was also effective for gangue removal from sorted particles with a large gangue content.","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"1 9","pages":"1952–1961 1952–1961"},"PeriodicalIF":0.0,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142318069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microwave-Assisted Hydrothermal Conversion of Potato Peel into Levulinic Acid and Formic Acid 微波辅助水热法将马铃薯皮转化为左旋乙酸和甲酸

ACS Sustainable Resource Management Pub Date : 2024-09-13 DOI: 10.1021/acssusresmgt.4c0005910.1021/acssusresmgt.4c00059

Sebastián Trigo-Ortiz, Sebastián Rocha, Mara Cea, Juan Miguel Romero-García, Eulogio Castro and María Eugenia González*,

{"title":"Microwave-Assisted Hydrothermal Conversion of Potato Peel into Levulinic Acid and Formic Acid","authors":"Sebastián Trigo-Ortiz, Sebastián Rocha, Mara Cea, Juan Miguel Romero-García, Eulogio Castro and María Eugenia González*, ","doi":"10.1021/acssusresmgt.4c0005910.1021/acssusresmgt.4c00059","DOIUrl":"https://doi.org/10.1021/acssusresmgt.4c00059https://doi.org/10.1021/acssusresmgt.4c00059","url":null,"abstract":"The current chemical industry primarily relies on basic molecules from petroleum. Nevertheless, these molecules, known as building block chemicals, can be synthesized from biomass. Therefore, the aim of this work was to evaluate the production of formic acid (FA) and levulinic acid (LA) from agro-industrial waste, particularly potato peel (PP), using a microwave-assisted hydrothermal treatment. The sample was conditioned and characterized by a physicochemical analysis. The results indicated that the PP had a high moisture content (≈ 82%) and a total carbohydrate content of 39.8%. Subsequently, a 23 factorial design was established to study the effect of temperature (100 to 180 °C), H2SO4 concentration (0 to 0.6 M) and reaction time (5 to 30 min.) on FA and LA conversion. From the experimental trials, it was possible to establish that the highest FA (2.51%) and LA (13.77%) yields were obtained at 180 °C and 0.6 M H2SO4. When ANOVA analysis was performed, it was observed that the temperature and H2SO4 concentration were the most influential parameters on FA and LA conversion. Finally, to improve the process, some tests were performed with a new set of temperatures (160, 180, and 200 °C) and acid concentrations (0.3, 0.6, and 1.0 M), and a previous hydrolysis stage was established, where the highest FA (3.19%) and LA (27.95%) yields were found at 160 °C and 1.0 M H2SO4. This work showed that it is possible to obtain value-added products from agro-industrial waste such as PP; however, further studies and experiments focused on improving the yield of the process are still required.","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"1 9","pages":"1919–1930 1919–1930"},"PeriodicalIF":0.0,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142318000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microwave-Assisted Carbamation and One-Pot Phosphorylation-Carbamation of Starch Using Molten Urea as a Reactive Solvent 微波辅助碳化和一锅磷化--以熔融尿素为反应溶剂进行淀粉碳化

ACS Sustainable Resource Management Pub Date : 2024-09-13 DOI: 10.1021/acssusresmgt.4c0019410.1021/acssusresmgt.4c00194

Kartik Ravishankar*, Sremaan Muthusamy, Sharath Kumar Durai, Gopi Murugan, Abhinav V. V. Koushik, Narasimman Thirumal, Sathya Narayanan Bhaskar and Sellamuthu Nagappan Jaisankar*,

{"title":"Microwave-Assisted Carbamation and One-Pot Phosphorylation-Carbamation of Starch Using Molten Urea as a Reactive Solvent","authors":"Kartik Ravishankar*, Sremaan Muthusamy, Sharath Kumar Durai, Gopi Murugan, Abhinav V. V. Koushik, Narasimman Thirumal, Sathya Narayanan Bhaskar and Sellamuthu Nagappan Jaisankar*, ","doi":"10.1021/acssusresmgt.4c0019410.1021/acssusresmgt.4c00194","DOIUrl":"https://doi.org/10.1021/acssusresmgt.4c00194https://doi.org/10.1021/acssusresmgt.4c00194","url":null,"abstract":"This study presents a rapid and convenient approach for the carbamation of starch through the microwave irradiation of its mixture with an excess of urea. In this process, urea served not only as a dielectrically lossy material conducive to microwave heating but also as a solvent in its molten state and a source of isocyanic acid. The formation of starch carbamate was confirmed by the appearance of ν(C═O) and ν(C–N) vibrations in the FTIR spectrum, along with the detection of a carbamate carbonyl signal in the 13C NMR spectrum. The resultant derivative, with a degree of substitution of 0.71, exhibited exceptional cold-water solubility, resistance to retrogradation, and cold solubility in organic solvents such as DMSO, N,N-DMF, and DMAc. Additionally, this microwave-assisted technique could be modified to include other agents with urea. For example, introducing sodium dihydrogen orthophosphate to the starch-urea mixture led to simultaneous phosphorylation. Control experiments indicated that this concurrent phosphorylation-carbamation introduced phosphodiester linkages between the starch molecules in addition to carbamation, resulting in an absorbent material. This absorbent was capable of absorbing about 2200% of distilled water, even in its crude, unpurified form. This easy-to-synthesize absorbent, particularly in its crude form, holds immense promise in agriculture for providing combined nitrogen and phosphorus supplementation along with water retention.","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"1 10","pages":"2203–2213 2203–2213"},"PeriodicalIF":0.0,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142517489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nutrient Removal and Recovery from Urine Using Bio-Mineral Formation Processes. 利用生物矿物形成过程从尿液中去除和回收营养物质。

ACS Sustainable Resource Management Pub Date : 2024-09-13 eCollection Date: 2024-09-26 DOI: 10.1021/acssusresmgt.4c00025

Robert E Colston, Ajay Nair, Peter Vale, Francis Hassard, Tom Stephenson, Ana Soares

{"title":"Nutrient Removal and Recovery from Urine Using Bio-Mineral Formation Processes.","authors":"Robert E Colston, Ajay Nair, Peter Vale, Francis Hassard, Tom Stephenson, Ana Soares","doi":"10.1021/acssusresmgt.4c00025","DOIUrl":"10.1021/acssusresmgt.4c00025","url":null,"abstract":"Harvesting nutrients from waste presents a promising initiative to advance and deliver the circular economy in the water sector while mitigating local shortages of mineral fertilizers worldwide. Urine, a small fraction of municipal wastewater, holds substantial amounts of nitrogen, orthophosphate (PO4-P), and chemical oxygen demand (COD). Separating urine aids targeted nutrient recovery, emissions reduction, and releasing capacity in wastewater treatment plants and taps into overlooked vital nutrients like magnesium (Mg2+) and potassium (K+), essential for plant growth. The ability of selected microorganisms (Brevibacterium antiquum, Bacillus pumilus, Halobacterium salinarum, Idiomarina loihiensis, and Myxococcus xanthus) to remove and recover nutrients from fresh urine through bio-mineral formation of struvite was investigated. The selected microorganisms outcompeted native microbes in open-culture fresh urine, and intact cell counts were 1.3 to 2.3 times larger than in noninoculated controls. PO4-P removal reached 50% after 4 days of incubation and 96% when urine was supplemented with Mg2+. Additionally, soluble COD was reduced by 60%; urea hydrolysis was only < 3% in controls, but it reached 35% in inoculated urine after 10 days. The dominant morphology of recovered precipitates was euhedral and prismatic, identified using energy dispersive spectroscopy and X-ray diffraction as struvite (i.e., bio-struvite), but K+ was also present at 5%. Up to 1 g bio-struvite/L urine was recovered. These results demonstrate the ability of bio-mineral producing microorganisms to successfully grow in urine and recover nutrients such as bio-struvite, that could potentially be used as sustainable fertilizers or chemicals.","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"1 9","pages":"1906-1918"},"PeriodicalIF":0.0,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11440639/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142362677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0