A5070887992- Agriculture, Soil, Plant Science
- Constructed Wetlands for Wastewater Treatment
- Ecology and Conservation Studies
- Phosphorus and nutrient management
- Adsorption and biosorption for pollutant removal
- Soil Carbon and Nitrogen Dynamics
- Wastewater Treatment and Nitrogen Removal
- Heavy metals in environment
- Water Quality Monitoring and Analysis
- Agricultural Science and Fertilization
- Recycling and utilization of industrial and municipal waste in materials production
- Thallium and Germanium Studies
- Advanced oxidation water treatment
- Rice Cultivation and Yield Improvement
- Composting and Vermicomposting Techniques
- Soil and Water Nutrient Dynamics
- Arsenic contamination and mitigation
- Coal and Its By-products
- Aquatic Ecosystems and Phytoplankton Dynamics
- Recycling and Waste Management Techniques
- Municipal Solid Waste Management
- Environmental remediation with nanomaterials
- Geochemistry and Elemental Analysis
- Layered Double Hydroxides Synthesis and Applications
- Polar Research and Ecology
Gyeongsang National University
2015-2024
Gyeongsangnam-do Agricultural Research and Extension Services
2021
Sunchon National University
2011-2018
Busan Institute of Science and Technology
2015
Rural Development Administration
2013
National Institute of Animal Science
2013
Louisiana State University
2010
Konkuk University
2007
The purpose of this study was to investigate the effect volatile fatty acid concentration on anaerobic degradation rate food waste leachate in digestion facilities. facilities treating (FWL), codigestion with and animal manure (A-MIX), sewage sludge (S-MIX) were selected for study. In accordance regulation under Wastes Control Act South Korea, guideline solid removal facility is set as 65% efficiency. Highest solids rates achieved from FWL (63.5%) than A-MIX (56.4%) S-MIX (41.2%). Four out...
The objective of this study was to evaluate the adsorption characteristics malachite green (MG) on pristine lignin as a dye adsorbent. capacity MG (31.2 mg/g) described by Langmuir isotherm and pseudo second order models, were higher than humic acid (6.4 mg/g). rapid occurring within 15 min reaction, then equilibrium reached. based an intraparticle diffusion model indicated that it dominated external boundary. Removal can be applied at wide range pH's (2–5), optimal dosage for removal 3 g/L....
Abstract Background The studies on cancer-stem-cells (CSCs) have attracted so much attention in recent years as possible therapeutic implications. This study was carried out to investigate the gene expression profile of CSCs human lung adenocarcinoma A549 cells. Results We isolated from cell line which side population (SP) phenotype revealed several stem properties. After staining with Hoechst 33342 dye, SP and non-side (non-SP) cells were sorted using flow cytometric analysis. mRNA profiles...
A heavy metal resistant bacterium Bacillus spp. strain CPB4 was isolated from contaminated soil in Korea and further characterised. The showed a high capacity for uptake of Pb (Pb > Cd Cu Ni Co Mn Cr Zn) both single mixed solution. Optimal conditions uptakes were 20–40 °C culture temperature, 5–7 pH 24 h pre-culture times. TEM that large amounts the electron-dense granules (heavy complexes) found mainly on cell wall membrane. Furthermore, more than 90% adsorbed metals distributed...
Abstract This experiment was conducted to evaluate the adsorption–desorption characteristics and mechanisms of heavy metals by mealworm frass (MF). The adsorption Cd MF were predominantly influenced initial pH, dosage, temperature, reaction time. maximum capacity 48.1 mg/g, which well described Langmuir isotherm pseudo-second-order models. optimal desorption solution for separating from Cd-adsorbed 0.02 M HCl, showed a high efficiency over 90%. In particular, mechanism confirmed through...
Commercial humic acids mainly obtained from leonardite are in increasing demand agronomy, and their market size is growing rapidly because these materials act as soil conditioners direct stimulators of plant growth development. In nature, fungus-driven nonspecific oxidations believed to be a key catabolizing recalcitrant lignins, resulting lignin humification. Here we demonstrated the effective transformation technical lignins derived Kraft processing woody biomass into humic-like...
Abstract Fluorine-containing compounds are widely used because they have properties required in textiles and coatings for electronic, automotive, outdoor products. However, fluorinated do not easily break down nature, which has resulted their accumulation the environment as well human body. Recently, enzymatic defluorination of fluorine-containing gained increasing attention. Here, we review reactions compounds. Furthermore, enzyme engineering strategies cleaving C–F bonds, highest...
Abstract One lake sediment and three soils for rice production were used to test the effectiveness of inhibiting nitrous oxide (N2O) reduction dinitrogen gas (N2) by acetylene (C2H2) using 15N tracer. Regardless sources samples, results show that in presence C2H2, significant isotopic enrichment N2 was found at end a typical denitrification assay. The δ15N value increased from 0‰ 7.8–19.3‰ 7.5–10.6‰ treatment with addition 0.05 0.2 mg nitrate, respectively. Such can be interpreted as...
This study was undertaken to investigate crop productivity, nitrogen use efficiency (AE_N, agronomic of N; ARF_N, apparent recovery fraction N), and nitrous oxide (N2O) emission after biochar (BB, bamboo biochar) fertilizer (N) application in paddy upland agricultural soils. The selected rice Chinese cabbage were grown the soil soil, respectively. Each treatment group, comprising N100% (N, 90 kg ha−1 for rice; 320 cabbage), BB + N35%, N70%, N100%, separated by a Control treatment. Overall,...
Abstract This study was conducted to evaluate the phosphate sorption properties of eggshell (ES) and calcined ESs (C-ESs) in a high-concentration solution. The C-ESs yield decreased rapidly at 900 °C, indicating that CaCO 3 constituting ES converted CaO by high calcination temperature. optimum temperature for removal using C-ES °C. actual amount C-ES900 agreement with Langmuir isothermal equation, maximum capacities derived from this equation were 178.6 270.3 mg/g, respectively. rate divided...
The purpose of this study was to produce rendering animal carcass residue char (RACR-C) by pyrolyzing the solid residues low-recyclable rendered pig carcasses and evaluate their cadmium (Cd) adsorption characteristics mechanisms. As pyrolysis temperature increased, inorganic content RACR-C while carbon decreased. In particular, surface structure chemistry RACR-Cs prepared at different temperatures were well described SEM-EDS, XRD, XRF, TGA, FTIR. Cd in good agreement with Langmuir isotherm...