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326 Results Found

  • Article
  • Open Access
1 Citations
3,933 Views
13 Pages

16 March 2019

As mining waste, alunite is a potential resource to produce potassium salt. The decomposition of alunite is closely associated with the recovery of soluble potassium. In this study, the effect of CaO on phase transformation of alunite in the desulfat...

  • Article
  • Open Access
39 Citations
14,001 Views
14 Pages

15 March 2016

Potassium is an important nutrient used in fertilizers but is not always naturally available We investigated the properties of polymer inclusion membranes (PIM) regarding their selective recovery of K+ over competitive ions typically present in urin...

  • Review
  • Open Access
25 Citations
6,470 Views
35 Pages

17 September 2022

The definition of technologies capable of removing and recovering nutrients from polluting effluents is a key environmental challenge. Through these technologies, it would be possible to protect aquatic systems and prevent the consumption of natural...

  • Feature Paper
  • Article
  • Open Access
7 Citations
4,794 Views
14 Pages

Potassium Recovery from Potassium Solution and Seawater Using Different Adsorbents

  • Sora Shin,
  • Eun Hea Jho,
  • HyunJu Park,
  • Sungjong Lee and
  • Joon Ha Kim

17 September 2021

The potassium (K) sorption characteristics with three adsorbents, natural zeolite, ammonium acetate-treated zeolite, and manganese nodule, were studied and compared to see the potential use of manganese nodule as an alternative K adsorbent. In genera...

  • Article
  • Open Access
6 Citations
6,105 Views
15 Pages

5 April 2021

In this study, potassium ferrocyanide, a nontoxic cyanide precursor in dark and diffuse reflection environment, was applied as reagent for the leaching of gold. The free cyanide ions could gradually release from potassium ferrocyanide solution under...

  • Article
  • Open Access
7 Citations
3,301 Views
16 Pages

11 April 2022

Tantalum slag is a type of high-grade tantalum resource with great recovery value. In this paper, a low fluorine process, including alkali pressure decomposition, low-acid transformation, solvent extraction, and crystallization, is proposed to recove...

  • Article
  • Open Access
7 Citations
2,375 Views
15 Pages

Potassium ferrate has strong oxidation in both acid and alkali environments, which has attracted extensive attention. However, the impact of the pH environment on this coupling process with the goal of resource recovery has not received attention. Un...

  • Review
  • Open Access
60 Citations
6,688 Views
25 Pages

Exploiting the Nutrient Potential of Anaerobically Digested Sewage Sludge: A Review

  • Nicola Di Costanzo,
  • Alessandra Cesaro,
  • Francesco Di Capua and
  • Giovanni Esposito

5 December 2021

The world is currently witnessing a rapid increase in sewage sludge (SS) production, due to the increased demand for wastewater treatment. Therefore, SS management is crucial for the economic and environmental sustainability of wastewater treatment p...

  • Article
  • Open Access
24 Citations
5,199 Views
17 Pages

The Recovery of Soybean Plants after Short-Term Cadmium Stress

  • Renata Holubek,
  • Joanna Deckert,
  • Inga Zinicovscaia,
  • Nikita Yushin,
  • Konstantin Vergel,
  • Marina Frontasyeva,
  • Alexander V. Sirotkin,
  • Donald Samdumu Bajia and
  • Jagna Chmielowska-Bąk

22 June 2020

Background: Cadmium is a non-essential heavy metal, which is toxic even in relatively low concentrations. Although the mechanisms of Cd toxicity are well documented, there is limited information concerning the recovery of plants after exposure to thi...

  • Article
  • Open Access
430 Views
28 Pages

Evaluation of Pyrite Recovery via Bench-Scale Froth Flotation from a Sulfide Ore Deposit in Southwestern Spain

  • Amina Eljoudiani,
  • Moacir Medeiros Veras,
  • Carlos Hoffmann Sampaio,
  • Josep Oliva Moncunill and
  • Jose Luis Cortina Pallas

23 November 2025

In recent decades, there has been an upsurge in focus on the extraction of pyrite from sulfide ore deposits due to its vital role in the process of metal extraction and environmental management. This study explores the flotation behavior of pyrite in...

  • Article
  • Open Access
1 Citations
3,680 Views
13 Pages

Selective Adsorption of Potassium in Seawater by CoHCF Thin Film Electrode and Its Electrochemical Desorption/Regeneration

  • Nan Zhang,
  • Tohru Kawamoto,
  • Hiroshi Watanabe,
  • Yong Jiang,
  • Zhenya Zhang,
  • Zhongfang Lei and
  • Durga Parajuli

27 June 2021

Cobalt Hexacyanoferrate (CoHCF) was tested for the selective uptake of K from seawater and the electrochemical method was adopted for the desorption and regeneration of the material. Powder form CoHCF could adsorb about 6.5 mmol/g of K from the seawa...

  • Article
  • Open Access
2 Citations
3,901 Views
13 Pages

The Effect of Potassium Nitrate Supplementation on the Force and Properties of Extensor digitorum longus (EDL) Muscles in Mice

  • Tomas Liubertas,
  • Jonas Liudas Poderys,
  • Vilma Zigmantaite,
  • Pranas Viskelis,
  • Audrius Kucinskas,
  • Ramune Grigaleviciute,
  • Jonas Jurevicius and
  • Dalia Urbonaviciene

20 March 2023

Adding potassium nitrate (KNO3) to the diet improves the physiological properties of mammalian muscles (rebuilds weakened muscle, improves structure and functionality). The aim of this study was to investigate the effect of KNO3 supplementation in a...

  • Article
  • Open Access
24 Citations
4,451 Views
11 Pages

Assessment of K-Struvite Precipitation as a Means of Nutrient Recovery from Source Separated Human Urine

  • Işık Kabdaşlı,
  • Sezen Kuşçuoğlu,
  • Olcay Tünay and
  • Alessio Siciliano

18 January 2022

The impact of nutrients on the environment, particularly on water bodies, has led to extensive studies for nutrient control. Within this context, studies have been focused on source separation of human urine from domestic wastewater to recover nutrie...

  • Article
  • Open Access
1 Citations
3,367 Views
26 Pages

Application of Anti-Solvent Crystallization for High-Purity Potash Production from K-Feldspar Leaching Solution

  • Sina Shakibania,
  • Lena Sundqvist-Öqvist,
  • Jan Rosenkranz and
  • Yousef Ghorbani

3 July 2024

Potassium-containing feldspars provide a high potential for producing potash, a product with widespread use in agriculture. The present work assesses applying the anti-solvent crystallization method for the purification and recovery of high-purity mu...

  • Article
  • Open Access
22 Citations
7,224 Views
12 Pages

6 April 2020

The recovery of platinum group elements (PGE (platinum group element coating); Pd, Pt, and Rh) from used catalytic converters, using low energy and fewer chemicals, was developed using potassium bisulfate fusion pretreatment, and subsequently leached...

  • Article
  • Open Access
6 Citations
3,395 Views
12 Pages

Effects of Various Potassium Fertilizer Dosages on Agronomic and Economic Assessment of Sweet Potato Fields

  • Jibiao Geng,
  • Qichao Zhao,
  • Zeli Li,
  • Xiuyi Yang,
  • Shutong Lei,
  • Qingping Zhang,
  • Hui Li,
  • Ying Lang,
  • Xianqi Huo and
  • Qianjin Liu

To explore the effects of various potassium fertilizer dosages on sweet potatoes, field experiments were conducted in 2018 and 2019 using a randomized block design. In the experiment, the control (completely blank, no fertilizer), KS0 (potassium blan...

  • Article
  • Open Access
15 Citations
3,485 Views
13 Pages

31 July 2021

In this paper, chelating agents were introduced as standalone fluids for enhancing the oil recovery from carbonate and sandstone reservoirs. Chelating agents such as glutamic acid di-acetic acid (GLDA), ethylene-diamine-tetra acetic acid (EDTA), and...

  • Article
  • Open Access
40 Citations
5,655 Views
19 Pages

28 November 2020

The present study surveys potential antibacterial synergism effects of silver nitrate with eight other metal or metalloid-based antimicrobials (MBAs), including silver nitrate, copper (II) sulfate, gallium (III) nitrate, nickel sulfate, hydrogen tetr...

  • Article
  • Open Access
13 Citations
2,952 Views
17 Pages

Effects of Natural Vegetation Restoration on Soil Physicochemical Properties in Tropical Karst Areas, Southwestern China

  • Bei Zhang,
  • Gang Hu,
  • Chaohao Xu,
  • Cong Hu,
  • Chaofang Zhong,
  • Siyu Chen and
  • Zhonghua Zhang

21 July 2024

Natural soil and vegetation recovery following human disturbance is the primary means of restoring degraded ecosystems globally. However, it remains unclear how vegetation recovery in the tropical karst areas of China affects the soil physicochemical...

  • Article
  • Open Access
7 Citations
5,793 Views
13 Pages

20 October 2023

Feldspar, which is one of the main inputs of the ceramic and glass industries, has widespread sources in Turkey and thus forms a large component of the country’s mineral exportation. In addition to this, potassium feldspars are one of the raw materia...

  • Article
  • Open Access
10 Citations
2,442 Views
19 Pages

Soil microorganisms significantly influence the energy flow and material cycle of soil ecosystems, making them highly susceptible to environmental changes, such as those induced by mining activities. Studying the succession of soil microbial communit...

  • Case Report
  • Open Access
9 Citations
4,753 Views
9 Pages

Thyrotoxic Periodic Paralysis—A Misleading Challenge in the Emergency Department

  • Stefana Bilha,
  • Ovidiu Mitu,
  • Laura Teodoriu,
  • Cristian Haba and
  • Cristina Preda

Despite its’ life-threatening potential due to cardiac severe dysrhythmia in the context of severe hypokalemia, thyrotoxic periodic paralysis (TPP) often goes unrecognized. Although classically confined to young Asian men, it can occur irrespec...

  • Case Report
  • Open Access
1 Citations
3,806 Views
7 Pages

Life-Threatening Hypokalemic Paralysis and Prevention of Severe Rebound Hyperkalemia in a Female with Barium Poisoning: A Rare Case Report

  • Ting-Wei Liao,
  • Ruei-Lin Wang,
  • Szu-Chi Chen,
  • Ya-Chieh Chang,
  • Wen-Fang Chiang and
  • Po-Jen Hsiao

28 August 2024

Hypokalemic paralysis is a clinical syndrome characterized by acute flaccid paralysis with concomitant hypokalemia. Complications, such as acute respiratory failure and cardiac arrhythmias, can be fatal. If treated appropriately, the patient can reco...

  • Article
  • Open Access
2 Citations
3,533 Views
13 Pages

Closed-Circuit Reverse Osmosis Performance Evaluation in a High-Recovery-Rate Water Reclamation Pilot Project

  • Jian Huang,
  • Simeng Li,
  • Saied Dalagah,
  • Shaun Stone,
  • David Ahles,
  • Joe Mouawad and
  • Mohamadali Sharbatmaleki

10 April 2025

Reusing treated effluent from municipal wastewater treatment plants is essential for addressing freshwater scarcity, a key objective of the United Nations Sustainable Development Goals (SDGs). While closed-circuit reverse osmosis (CCRO) has shown pro...

  • Article
  • Open Access
17 Citations
2,018 Views
10 Pages

26 June 2011

A HPLC method has been described for simultaneous determination of Losartan potassium and Metolazone in formulation. This method is based on a HPLC separation of the two drugs on the Thermo Hypersil BDS–C18 (250 mm × 4.6 mm, 5.0 μm) with isocratic co...

  • Article
  • Open Access
24 Citations
10,805 Views
13 Pages

14 February 2022

Carbon fiber composites are increasingly used in aerospace, motorcycles, sporting, and high-performance vehicles, and their end of life recycling is of growing interest. This study deals with the life cycle assessment (LCA) of carbon fiber reinforced...

  • Article
  • Open Access
2 Citations
1,872 Views
22 Pages

A New Feasible Opportunity for Recycling Lead and Silver from Zinc Plant Residues by Flotation

  • Hossein Kamran Haghighi,
  • Fatemeh Sadat Hoseinian and
  • Ana Maria Sastre

26 October 2024

Millions of tons of zinc plant leach residues (ZPLR) have been stockpiled in Iranian hydrometallurgical zinc plants during the last few decades. Due to the low grades of zinc, lead, and silver in these residues, these residues have been abandoned wit...

  • Feature Paper
  • Review
  • Open Access
19 Citations
4,582 Views
42 Pages

Application Prospect of K Used for Catalytic Removal of NOx, COx, and VOCs from Industrial Flue Gas: A Review

  • Zhicheng Xu,
  • Yuran Li,
  • Huimin Shi,
  • Yuting Lin,
  • Yan Wang,
  • Qiang Wang and
  • Tingyu Zhu

25 March 2021

NOx, COx, and volatile organic compounds (VOCs) widely exist in motor vehicle exhaust, coke oven flue gas, sintering flue gas, and pelletizing flue gas. Potassium species have an excellent promotion effect on various catalytic reactions for the treat...

  • Article
  • Open Access
2 Citations
2,214 Views
10 Pages

Characterisation and Recovery of Minerals in Silages of Sorghum IPA 2502 Irigated with Different Leaching Fractions of Brackish Water

  • Fleming Sena Campos,
  • Gherman Garcia Leal de Araújo,
  • Welson Lima Simões,
  • Thieres George Freire da Silva,
  • Miguel Júlio Machado Guimarães,
  • Cleyton de Almeida Araújo,
  • Amélia de Macedo,
  • Getúlio Figueiredo de Oliveira,
  • Tiago Santos Silva and
  • Anderson de Moura Zanine
  • + 3 authors

28 April 2023

The objective of this study was to evaluate the characteristics and recovery of minerals in silages of sorghum cv. IPA 2502 irrigated with different leaching fractions of brackish water. Sorghum cultivation was carried out in the field in a randomise...

  • Article
  • Open Access
20 Citations
2,827 Views
11 Pages

5 December 2011

A simple, precise and accurate isocratic RP-HPLC stability-indicating assay method has been developed to determine diclofenac potassium and metaxalone in their combined dosage forms. Isocratic separation was achieved on a Hibar-C18, Lichrosphere-100®...

  • Article
  • Open Access
4 Citations
2,933 Views
17 Pages

With the addition of Tween 80, potassium hydroxide pretreatment and enzymatic hydrolysis were statistically optimized to maximize sugar yields from corn cob (CC). The results indicated that the sugar yields from CC could be influenced significantly b...

  • Article
  • Open Access
15 Citations
4,417 Views
13 Pages

A Comparative Study of Quartz and Potassium Feldspar Flotation Process Using Different Chemical Reagents

  • Kalyani Mohanty,
  • Josep Oliva,
  • Pura Alfonso,
  • Carlos Hoffmann Sampaio and
  • Hernan Anticoi

4 February 2024

An improved method for producing high-purity quartz (Qtz) and potassium feldspar (Kfs) concentrates was developed using various chemical reagents. Froth flotation experiments on a Qtz–Kfs mixture showed that quartz could be selectively floated...

  • Article
  • Open Access
32 Citations
5,291 Views
12 Pages

Agglomeration-Flotation of Finely Ground Chalcopyrite and Quartz: Effects of Agitation Strength during Agglomeration Using Emulsified Oil on Chalcopyrite

  • Vothy Hornn,
  • Mayumi Ito,
  • Hiromasa Shimada,
  • Carlito Baltazar Tabelin,
  • Sanghee Jeon,
  • Ilhwan Park and
  • Naoki Hiroyoshi

23 April 2020

In flotation, the size of mineral particles is one of the most important parameters: when the size becomes fine, collision efficiency of the particles and air bubbles becomes low, causing low flotation recovery. To improve the collision efficiency an...

  • Article
  • Open Access
2 Citations
2,947 Views
14 Pages

Non-Invasive Hydration Monitoring with a Graphene Dual Sweat Sensor

  • Joseph J. Q. Ng,
  • Sergey Tkachev,
  • Glendon C. F. Sim,
  • Luiza Felippi de Lima,
  • Gavin K. W. Koon,
  • Alexandre P. Lima and
  • Antonio H. Castro Neto

30 April 2025

Maintaining optimal hydration is critical for physiological function, particularly during intense physical activities, in which dehydration or overhydration can impair performance and recovery. Traditional methods for monitoring hydration status, suc...

  • Article
  • Open Access
2 Citations
6,868 Views
13 Pages

2 March 2021

Myocardial ischemia could induce arrhythmias such as ventricular tachycardia and ventricular fibrillation, leading to sudden death and other serious consequences. This manuscript adopted the cardiac modeling and simulation method to study the activit...

  • Article
  • Open Access
10 Citations
4,386 Views
14 Pages

Testing of New Collectors for Concentration of Fluorite by Flotation in Pneumatic (Modified Hallimond Tube) and Mechanical Cells

  • J.R. Corpas-Martínez,
  • A. Pérez,
  • R. Navarro-Domínguez,
  • C. Amor-Castillo,
  • M.A. Martín-Lara and
  • M. Calero

25 May 2020

In this study, two new collectors for fluorite flotation DP-OMC-1033 (DP-I) and DP-OMC-1234 (DP-II) were tested and compared with oleic acid (OA), sodium oleate (SO) and potassium oleate (PO). According to fluorite grade and fluorite metallurgical re...

  • Article
  • Open Access
765 Views
17 Pages

High Fire Drives the Reorganization of Taiga Soil Fungal Communities with Ascomycota as the Dominant Phylum After Long-Term Recovery

  • Siyu Jiang,
  • Zhichao Cheng,
  • Hong Pan,
  • Siyuan Liu,
  • Huijiao Qu,
  • Mingliang Gao,
  • Libin Yang and
  • Jia Zhou

27 October 2025

Forest fires are key disturbance factors in forest ecosystems, and soil fungi play an irreplaceable role in post-fire recovery. This study focused on forest areas burned in 2000 in the Daxing’anling region of China, targeting long-term recovery...

  • Article
  • Open Access
21 Citations
8,572 Views
12 Pages

7 April 2021

This study aimed to develop simple electrochemical electrodes for the fast detection of chloride, sodium and potassium ions in human serum. A flat thin-film gold electrode was used as the detection electrode for chloride ions; a single-piece type mem...

  • Article
  • Open Access
1 Citations
1,991 Views
14 Pages

1 March 2024

Recovery efforts for the endangered Serianthes nelsonii have been deficient. To learn more about leaf development costs, the content of biomass and essential elements were determined in the supportive and laminae tissue of leaves that were constructe...

  • Article
  • Open Access
39 Citations
8,633 Views
15 Pages

1 November 2019

Kapok is a hollow fiber with a 90% hollow degree. Compared with cotton fiber, kapok fiber has excellent performances, such as good hygroscopicity, and a good warmth retention property. In this work, desized indigo kapok/cotton denim fabrics were blea...

  • Article
  • Open Access
20 Citations
7,898 Views
15 Pages

Contribution of Intrinsic Lactate to Maintenance of Seizure Activity in Neocortical Slices from Patients with Temporal Lobe Epilepsy and in Rat Entorhinal Cortex

  • Eskedar Ayele Angamo,
  • Rizwan Ul Haq,
  • Jörg Rösner,
  • Siegrun Gabriel,
  • Zoltán Gerevich,
  • Uwe Heinemann and
  • Richard Kovács

Neuronal lactate uptake supports energy metabolism associated with synaptic signaling and recovery of extracellular ion gradients following neuronal activation. Altered expression of the monocarboxylate transporters (MCT) in temporal lobe epilepsy (T...

  • Article
  • Open Access
2 Citations
3,227 Views
17 Pages

Short-Term Impacts of Fire and Post-Fire Restoration Methods on Soil Properties and Microbial Characteristics in Southern China

  • Hongen Zhou,
  • Mengmeng Yang,
  • Xuan Luo,
  • Zefang Yang,
  • Lanqing Wang,
  • Shizhong Liu,
  • Qianmei Zhang,
  • Mingdao Luo,
  • Jinwei Ou and
  • Shiyang Xiong
  • + 2 authors

12 December 2024

Wildfires and post-fire restoration methods significantly impact soil physicochemical properties and microbial characteristics in forest ecosystems. Understanding post-fire soil recovery and the impacts of various post-fire restoration methods is ess...

  • Article
  • Open Access
4 Citations
2,896 Views
14 Pages

30 April 2023

Scrapped saggars, used for the calcination of the cathode materials of lithium-ion batteries, contain large amounts of nickel, cobalt and manganese compounds, which have high economic value and significance to the ecological environment if recycled....

  • Article
  • Open Access
2 Citations
1,783 Views
16 Pages

29 September 2024

Recurrent wildfires can negatively affect soil quality, and post-fire soil quality recovery is critical for maintaining sustainable ecosystem development. The objective of this study was to evaluate the changes and recovery of soil properties and soi...

  • Article
  • Open Access
3,293 Views
12 Pages

21 December 2024

Background: The monocarboxylate transporter 1 (MCT1) plays a crucial role in regulating lactate and pyruvate transport across cell membranes, which is essential for energy metabolism during exercise. The MCT1 A1470T (rs1049434) polymorphism has been...

  • Article
  • Open Access
35 Citations
12,983 Views
12 Pages

1 November 2018

Anaerobic power and anaerobic capacity significantly influence performance in many sport disciplines. These include prolonged sprints in athletics, swimming, or cycling, and other high intensity intermittent sports, such as soccer or basketball. Cons...

  • Article
  • Open Access
7 Citations
3,214 Views
14 Pages

Lithium and Potassium Cations Affect the Performance of Maleamate-Based Organic Anode Materials for Potassium- and Lithium-Ion Batteries

  • Kefyalew Wagari Guji,
  • Wen-Chen Chien,
  • Fu-Ming Wang,
  • Alagar Ramar,
  • Endazenaw Bizuneh Chemere,
  • Lester Tiong and
  • Laurien Merinda

19 November 2021

In this study we prepared potassium-ion batteries (KIBs) displaying high output voltage and, in turn, a high energy density, as replacements for lithium-ion batteries (LIBs). Organic electrode materials featuring void spaces and flexible structures c...

  • Communication
  • Open Access
9 Citations
3,578 Views
11 Pages

9 November 2020

This study demonstrates the effects of a potassium propyl xanthate (PPX) collector and sodium sulfite (Na2SO3) depressant on pure chalcopyrite in synthetic seawater (SSW) and potassium chloride (KCl) solutions. SSW solutions with 35 g/L of salt and 0...

  • Article
  • Open Access
11 Citations
2,954 Views
18 Pages

The Selection of the Optimal Impregnation Conditions of Vegetable Matrices with Iodine

  • Agata Zaremba,
  • Katarzyna Waszkowiak,
  • Dominik Kmiecik,
  • Anna Jędrusek-Golińska,
  • Maciej Jarzębski and
  • Krystyna Szymandera-Buszka

This study aimed to determine the use of selected vegetables (pumpkin, cauliflower, broccoli, carrot) as carriers of potassium iodide (KI) and potassium iodate (KIO3) by determining changes in iodine content under various conditions of impregnation a...

  • Article
  • Open Access
4 Citations
3,331 Views
17 Pages

The Antioxidant Properties of Selected Varieties of Pumpkin Fortified with Iodine in the Form of Potassium Iodide and Potassium Iodate

  • Agata Zaremba,
  • Marzanna Hęś,
  • Anna Jędrusek-Golińska,
  • Monika Przeor and
  • Krystyna Szymandera-Buszka

23 July 2023

This study aimed to investigate the use of selected pumpkin varieties as carriers of potassium iodide (KI) and potassium iodate (KIO3) at different concentrations (2.3, 0.23, and 0.023 mg/100 g). It was hypothesized that the concentrations and form o...

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