A5041702616- Adsorption and biosorption for pollutant removal
- Phosphorus and nutrient management
- Mine drainage and remediation techniques
- Constructed Wetlands for Wastewater Treatment
- Vanadium and Halogenation Chemistry
- Radioactive element chemistry and processing
- Arsenic contamination and mitigation
- Per- and polyfluoroalkyl substances research
- Recycling and utilization of industrial and municipal waste in materials production
- Metal Extraction and Bioleaching
- Geochemistry and Elemental Analysis
- Fluoride Effects and Removal
- Chemical Analysis and Environmental Impact
- Thermochemical Biomass Conversion Processes
- Corrosion Behavior and Inhibition
- Inorganic Fluorides and Related Compounds
- Hepatocellular Carcinoma Treatment and Prognosis
- Long-Term Effects of COVID-19
- Prion Diseases and Protein Misfolding
- Esophageal and GI Pathology
- Environmental remediation with nanomaterials
- Toxic Organic Pollutants Impact
- Infectious Diseases and Tuberculosis
- Mycobacterium research and diagnosis
- Genetic and Kidney Cyst Diseases
University of Oulu
2018-2024
Tampere University
2022-2024
Beijing YouAn Hospital
2015-2020
Capital Medical University
2015-2020
Chemically modified pine bark was synthesized by using glycidyl trimethyl ammonium chloride (GTMAC) in the presence of sodium hydroxide. Optimization modification parameters performed order to maximize vanadium removal. Parameters included initial NaOH concentration (0.01–2% w/v), GTMAC dosage (0.0067–0.0805 mol/g), time (1–6 h), temperature (40–80 ℃) and volume (25–100 mL). The optimal conditions were found be 0.1% (w/v), 0.0134 mol/g GTMAC, 3 h 60 ℃. played most important role successful...
Abstract Because of spontaneous agglomeration effect and undesirable electronic state Zr sites on the surface, zirconium (hydro)oxides generally exhibit suboptimal defluoridation capacity. Herein, a template confinement‐ligand anchoring strategy is developed by utilizing confined growth hydroxide (ZH) inside chitosan hydrogel beads (CHB) subsequent fumaric acid (fm) its surface in monodentate mononuclear coordination mode. This technique leads to uniform dispersion ultrafine fmZH (≈3.4 nm)...
In the context of circular economy and global shortage phosphorus (P) fertilizer production, it is crucial to effectively recover P during treatment disposal sewage sludge (SS). Although thermal SS has been widely applied, a targeted reclamation route not yet well established. This study comprehensively investigated compared physicochemical properties solid residues (hydrochar (HC), biochar (BC), ash (SSA), hydrochar (HCA), (BCA)) after application three typical techniques (i.e.,...
Due to high moisture and protein contents in sewage sludge (SS), conventional thermal treatment of SS is energy-intensive a large amount harmful nitrogen-containing gases are emitted. In this study, sequential hydrothermal carbonization (HTC) CO2 gasification system has been proposed effectively improve the efficiency considerably reduce emissions NOx precursors (i.e., NH3 HCN) treatment. Yield quality syngas were comprehensively investigated during terms various temperatures with different...
In this study, two-step surface modification of sawdust using triethanolamine (at 180 °C) and iodomethane 42 was performed to produce a novel quaternized biosorbent, TEA-I-SD. The characterization studies revealed significant morphological changes in the successful quaternization with nitrogen content 5.75%. highest vanadium removal (96.2%) achieved at pH 4 (dosage 1 g/L, initial concentration 19.1 mg/L). Equilibrium within 8 h contact time adsorption kinetics were well fitted...
This study investigated the removal of vanadium from mining waters at a closed mine site (Mustavaara, Finland) using granular ferric oxyhydroxide (CFH-12) on pilot scale. Two filter systems, A and B, were placed in different streams, where influent contained higher very variable concentration (6.46-99.1 mg/L), while B treated had lower concentrations (0.443-2.33 mg/L). The operation periods 51 days for 127 B. Water quality analyses revealed that was efficiently captured system both pilots....
Removal of vanadium from liquid waste streams protects the environment toxic species and promotes recovery valuable metal. In this study, real mining ditch water was sampled a closed mine (V–Fe–Ti oxide deposit, Finland) used in sorption experiments at prevailing concentration (4.66–6.85 mg/L) pH conditions (7.02–7.83). The high represents potential health concern according to initial risk assessment carried out study. Vanadium efficiently removed using four different iron sorbents: ferric...
To realize sound disposal of hyperaccumulator harvested from phytoremediation, hydrothermal carbonization (HTC) has been employed to obtain superior hydrochar adsorbents for removal phosphate and ammonium water body. A series hydrochars have prepared under tuned HTC conditions tailor with desired properties. Generally, increased temperature prolonged reaction time facilitated acidic oxygen functional groups on hydrochars, thereby improving adsorption capacity hydrochar. In single solute...
Per- and polyfluoroalkyl substances (PFAS) have gained global attention in recent years due to their adverse effect on environment human health. In this study, a novel cost-effective sorbent was developed utilizing forestry by-product pine bark tested for the removal of PFAS compounds from both synthetic solutions contaminated groundwater. The synthesis adsorbent included two steps: 1) loading cetyltrimethylammonium bromide (CTAB) onto followed by 2) simple coating magnetite nanoparticles....
Vanadium – a transition metal is found in the ferrous-ferric mineral, magnetite. has many industrial applications, such as production of high-strength low-alloy steels, and its increasing global consumption requires new primary sources. Bioleaching biotechnological process for microbially catalyzed dissolution minerals wastes recovery biogenic organic acid bauxite residues. In this study, 16S rRNA gene amplicon sequencing was used to identify microorganisms Nordic mining environments...
Chest CT is useful in assessing the disease course of coronavirus disease-19 (COVID-19). This study aims to identify characteristics patients whom imaging progression occurred while clinical symptoms were relieved and guide radiological reexamination.This retrospective included 73 with reverse transcription-polymerase chain reaction (RT-PCR) confirmed severe acute respiratory syndrome-2 (SARS-CoV-2) infection. All received reexaminations within 24 h after symptomatic remission. We divided...
A combined sorption/desorption and UV/sulfite degradation process was investigated for achieving efficient elimination of PFAS from water. Two gel-type resins, Purolite A532E A600, one macroporous resin, A860, were firstly tested the sorption individual PFPrA, PFHxA, PFOA, PFOS, GenX at different concentrations. Sorption data density functional theory (DFT) calculations revealed that electrostatic interactions predominated short-chain hydrophobic played a more significant role long-chain...
To investigate the findings about gastrointestinal lesions in patients with HIV/AIDS by diagnostic imaging. The imaging 11 were retrospectively analyzed. Plain chest radiography was performed for all cases, but CT scanning 4 abdominal 9 pelvic 2 MR 1 case, and endoscopy cases. Gastrointestinal perforation shown 3 including cases of esophageal case gastric perforation. Intestinal tuberculosis diagnosed cytomegalovirus enteritis lymphoma adenocarcinoma case. Esophageal together mediastinal...
Objective To investigate CT and MRI features of hepatic sclerosed hemangioma (HSH). Methods CT findings were retrospectively reviewed in 20 cases HSH, all which confirmed pathologically after surgery. Twenty patients underwent scan,4 MRI. Meanwhile, the enhancement pattern signal intensity analyzed either. Results Twenty showed main part tumor was hypo-attenuating on plain scanning, 16 central area markedly more scanning. After administration intravenous contrast media,...