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Articles 1 - 30 of 1725
Full-Text Articles in Entire DC Network
Application Of Biochar / Bentonite Based Admixtures In Reinforced Concrete For Corrosion Prevention, Jacob Fleury
Application Of Biochar / Bentonite Based Admixtures In Reinforced Concrete For Corrosion Prevention, Jacob Fleury
Graduate Theses & Non-Theses
Reinforced concrete systems are in many sectors of infrastructure. Due to a combination of elevated compressive strength from the cement and aggregates and tensile strength from the reinforcing steel, reinforced systems are favorable in construction applications where high strength is desired. However, while reinforced concrete is in service, it can be introduced to contaminants that cause corrosion. Contaminants can leach through the porous matrix of the concrete structure and influence initiation of corrosion products on reinforcement. Corrosion is the primary cause for advanced deterioration of concrete structures. Concrete deterioration has promoted research efforts for the protection of future systems. This …
Process Intensification For Rare Earth Elements Adsorption By Resonant Vibratory Mixing, Oluwatosin Adebayo, Richard Ladouceur, Zainab Nasrullah
Process Intensification For Rare Earth Elements Adsorption By Resonant Vibratory Mixing, Oluwatosin Adebayo, Richard Ladouceur, Zainab Nasrullah
Graduate Theses & Non-Theses
The adsorption capacity for six rare earth elements (Lanthanum, Terbium, Neodymium, Dysprosium, Praseodymium, and Holmium) by biochar produced from hemp feedstock was investigated. An innovative approach to enhancing the adsorption of rare earth elements using biochar was studied and investigates the potential of resonant vibratory mixing (RVM) as a process intensification method compared to conventional mechanical mixing for the adsorption process. Hemp hurds as source of biomass was pyrolyzed to produce biochar at a temperature of 4500C for 60 minutes. The biochar was characterized by FTIR (Fourier Transform Infra-red), SEM (Scanning Electron Microscopy), Surpass 3 Electrokinetic solid surface analyzer, and …
Respiratory Illnesses In Women And Children From Ghana: Problem Identification And Intervention, Stephanie Dale
Respiratory Illnesses In Women And Children From Ghana: Problem Identification And Intervention, Stephanie Dale
The Eleanor Mann School of Nursing Undergraduate Honors Theses
Rural communities in the upper east region of Ghana currently cook with traditional coal pots that produce increased levels of smoke resulting in rapid fuel consumption, increased air pollution, and high levels of respiratory illness in the women and children who use them. New stoves have been developed that remain similar to the traditional ones in use but are designed to provide a variety of benefits such as lowering the cost of fuel, reducing air pollution, and decreasing rates of respiratory illness in women and children. The purpose of this research study was to identify why women have not begun …
Who Will Speak For The Trees? How The Save Our Sequoias Act Underscores The Urgent Need To Protect Giant Sequoias And The Tule River Indian Reservation From Wildfire Destruction, Bradly Demoll
UC Law Environmental Journal
Increasing rates of high-severity wildfires threaten the existence of giant sequoia trees, as well as the reservation and sacred cultural sites of the Tule River Indian Tribe. Decades of fire suppression have created a ticking time bomb across millions of acres of land. The result: the last two fire seasons alone wiped out nearly 20% of all giant sequoias on the planet and burned thousands of acres of forests across the Tribe’s land. This Article explores the ecological background and significance of the giant sequoias and their relationship to the Tribe. It then examines the existing legal framework for sequoia …
Evaluating Aspen Seedling Outplanting Success Following High Severity Wildfire In The Southwest, Sarah M. Kapel
Evaluating Aspen Seedling Outplanting Success Following High Severity Wildfire In The Southwest, Sarah M. Kapel
All Graduate Theses and Dissertations, Fall 2023 to Present
Quaking aspen (Populus tremuloides Michx.) is an ecologically important forest species in the western U.S. Aspen forests host a variety of understory species, are critical wildlife habitat, and are considered a "natural fuel break" since they are less likely to support crown fires than conifers. Because of climate change and altered disturbance regimes, populations are declining, and innovative strategies are needed to restore aspen. Planting aspen seedlings is a solution, though not a common practice in the West and has been met with high mortality in past experiments. For aspen planting to be more broadly implemented, managers need guidance …
Sustainable Fertilizer Management Practices For Container Nursery Production, Saroj Burlakoti
Sustainable Fertilizer Management Practices For Container Nursery Production, Saroj Burlakoti
All Graduate Theses and Dissertations, Fall 2023 to Present
Growing nursery plants in containers requires a timely supply of mineral nutrients for optimum growth. However, there is a misconception among growers that the application of higher doses of fertilizers hastens plant growth; instead, it can lead to runoff and leaching loss of nutrients. Reducing fertilizer application while sustaining healthy plants can not only negate environmental consequences but also save fertilizer costs. For example, two ground covers, Lysimachia nummularia (creeping jenny, moneywort) and Vinca minor 'Bowles' (periwinkle), can be grown for three months by applying 6 mg/L of phosphorus (P) as reduction of P to single application of 6 mg/L …
Fate And Treatability Of Engineered Nanoparticles In Urban Stormwater, Laura Wright
Fate And Treatability Of Engineered Nanoparticles In Urban Stormwater, Laura Wright
Masters Theses and Doctoral Dissertations
Despite the tremendous benefits of engineered nanoparticles (ENPs), their inevitable release into the environment may be detrimental and hence cause for concern of these emerging contaminants. In this thesis research, the fate and transport of nano-silver (n-Ag) and nano-titanium dioxide in source specific stormwater is explored, and the influence of n-Ag on the treatability of co-pollutants is examined. Through the analysis of particle size distribution, it was noticed that metallic ENPs tend to aggregate initially, while extended turbulence in the system leads to disaggregation. Stormwater samples with added ENPs exhibited larger particles than those in stormwater without added ENPs. The …
2024 Gs4 Student Scholars Symposium Program, Georgia Southern University
2024 Gs4 Student Scholars Symposium Program, Georgia Southern University
GS4 Georgia Southern Student Scholars Symposium
Statesboro Campus presentations can be found on Pg. 4-17.
One-Pot Synthesis Green Zinc Oxide Nanoparticles Immobilized On Activated Carbon Derived From Pineapple Peel For Adsorption Of Pb(Ii), Vienna Saraswaty, Evyka Setya Aji, Ardi Ardiansyah, Ayu Hanifah, Nathania Puspitasari, Shella Permatasari Santoso, Sandy Budi Hartono, Chandra Risdian, Elsy Rahimi Chaldun, Henry Setiyanto
One-Pot Synthesis Green Zinc Oxide Nanoparticles Immobilized On Activated Carbon Derived From Pineapple Peel For Adsorption Of Pb(Ii), Vienna Saraswaty, Evyka Setya Aji, Ardi Ardiansyah, Ayu Hanifah, Nathania Puspitasari, Shella Permatasari Santoso, Sandy Budi Hartono, Chandra Risdian, Elsy Rahimi Chaldun, Henry Setiyanto
Karbala International Journal of Modern Science
The current study introduces a one-pot technique for synthesizing an environmentally benign and cheap composite adsorbent, namely ZnO-PPAC, for the adsorption of Pb(II). The designated adsorbent was prepared by incorporating green synthesized zinc oxide (ZnO) nanoparticles on activated carbon-derived from pineapple peel. The prepared adsorbents were characterized using XRD, SEM, EDS, FTIR, and BET techniques. The XRD pattern verifies that the ZnO was successfully synthesized and immobilized onto the PPAC in a one pot synthesis system. The surface areas of ZnOPPAC and PPAC adsorbents were 13.62 m2/g and 961.96 m2/g, respectively. The FTIR evaluation of the ZnO-PPAC adsorbent revealed several …
Conference Program, Georgia Southern University
Conference Program, Georgia Southern University
GS4 Georgia Southern Student Scholars Symposium
No abstract provided.
Study On Heavy Metal Content Calculation And Agricultural Potential Based On Hyperspectral Remote Sensing Image Processing, Xiangyu Shan, Fei Dou, Shuangquan Gao, Chuanping Liu, Cangbai Li
Study On Heavy Metal Content Calculation And Agricultural Potential Based On Hyperspectral Remote Sensing Image Processing, Xiangyu Shan, Fei Dou, Shuangquan Gao, Chuanping Liu, Cangbai Li
Turkish Journal of Agriculture and Forestry
Soil is the main influencing factor for plant growth, reproduction, and distribution. With the acceleration of industrialization and the intensification of human activities, the problem of heavy metal pollution in agricultural soil is becoming increasingly prominent. Heavy metals in soil are toxic and easily absorbed by plants, and consuming contaminated crops poses a great threat to human health. Therefore, it is necessary to monitor the content of heavy metals (HMs for short here) in soil. Hyperspectral Remote Sensing (HRS for short here) has great application prospects in obtaining quantitative information of soil organic matter, minerals and other components due to …
Chitosan Application Improves Yield And Quality Of Rocket (Eruca Sativa), Ayşe Özkan, Hali̇me Ünlü
Chitosan Application Improves Yield And Quality Of Rocket (Eruca Sativa), Ayşe Özkan, Hali̇me Ünlü
Turkish Journal of Agriculture and Forestry
The present study aimed to investigate the effects of chitosan application on the yield and quality of rockets. “Bengi” rocket variety was used as a plant material and chitosan was applied to leaves at four different doses (0 (control)–75–150–300 ppm). The results revealed that the yield values varied between 1691–1914 g m-2, plant height between 24.33–27.92 cm, and leaf width between 4.56–5.71 cm among the applications. The total dry matter, chlorophyll, total phenolics, vitamin C, and antiradical activity values were determined to range between 7.71% and 8.68%, 34.15 and 36.68 SPAD, 104.67 and 180.84 mg 100 g–1, 126.63 and 143.51 …
Adsorbents From Rice Husk And Shrimp Shell For Effective Removal Of Heavy Metals And Reactive Dyes In Water, Md Ibrahim H Mondal, Shovra Chandra Chakraborty, Md Saifur Rahman, Shaik Merkatur Hakim Marjuban, Firoz Ahmed, John L Zhou, Mohammad Boshir Ahmed, Masoumeh Zargar
Adsorbents From Rice Husk And Shrimp Shell For Effective Removal Of Heavy Metals And Reactive Dyes In Water, Md Ibrahim H Mondal, Shovra Chandra Chakraborty, Md Saifur Rahman, Shaik Merkatur Hakim Marjuban, Firoz Ahmed, John L Zhou, Mohammad Boshir Ahmed, Masoumeh Zargar
Journal Articles
Widespread contamination by heavy metals (HMs) and dyes poses a major health risk to people and ecosystems requiring effective treatment. In this work, rice husk (RH) and shrimp shells were extracted to obtain amorphous silica and chitosan, respectively, which were utilized to produce nano-chitosan-coated silica (NCCS). To ensure the stability of the nanoparticles, silica was freeze-dried after being coated with nano-chitosan. Functional groups (-NH
Water Current, Volume 56, No. 1, Spring 2024
Water Current, Volume 56, No. 1, Spring 2024
Water Current Newsletter
No abstract provided.
Genome-Scale Metabolic Modeling Of Chitin-Degrading Microbial Systems, Aimee Kristin Kessell
Genome-Scale Metabolic Modeling Of Chitin-Degrading Microbial Systems, Aimee Kristin Kessell
Dissertations and Doctoral Documents from University of Nebraska-Lincoln, 2023–
As a major component of fungal cell walls and exoskeletons of invertebrates, chitin is widespread in soils, constituting the second most abundant biopolymer in nature. Composed of N-acetyl-D-glucosamine chains, it serves as a vital source of nutrients, including both carbon and nitrogen, for the growth of microorganisms. A solid understanding of the microbial degradation of chitin is critical for predicting their impacts on biogeochemical cycling in soil ecosystems. Organisms that degrade biopolymers (degraders) produce energetically expensive extracellular enzymes to break down complex organic carbons into simpler labile forms that are sharable with other species, including those that do not contribute …
A Review On Bioremediation Of Heavy Metals And Hydrocarbons Through Plant Growth-Promoting Bacteria And Composting, Hafsa Saleem, Hadia Farooq, Rimsha Mazhar, Sadaf Shakil, Sahar Fazal
A Review On Bioremediation Of Heavy Metals And Hydrocarbons Through Plant Growth-Promoting Bacteria And Composting, Hafsa Saleem, Hadia Farooq, Rimsha Mazhar, Sadaf Shakil, Sahar Fazal
Journal of Bioresource Management
Soil is an important ecosystem component; it serves as a habitat for many microscopic organisms that play an important role in the ecosystem's maintenance and crops grown in soil. Unfortunately, human activities have adversely affected not only the environment but also the soil health. Soil has been contaminated with heavy metals hydrocarbons and hydrocarbon-based products that are affecting soil health and the growth of plants. In this review two methods of heavy metal remediation are discussed; one is the role of plant growth-promoting bacteria (PGPB) in the enhancement of phytoremediation and the other is composting. PGPB help plants to grow …
18th Annual Research In The Capitol [Program], March 25, 2024, University Of Northern Iowa. University Honors Program. Iowa State University. Honors Program. University Of Iowa. Honors Program.
18th Annual Research In The Capitol [Program], March 25, 2024, University Of Northern Iowa. University Honors Program. Iowa State University. Honors Program. University Of Iowa. Honors Program.
Research in the Capitol Programs
Program of research presentations given at the Capitol by students from the University of Northern Iowa, Iowa State University, and the University of Iowa.
Role Of Electronegativity In Environmentally Persistent Free Radicals (Epfrs) Formation On Zno, Syed Monjur Ahmed, Reuben Oumnov, Orhan Kizilkaya, Randall W. Hall, Philip T. Sprunger, Robert L. Cook
Role Of Electronegativity In Environmentally Persistent Free Radicals (Epfrs) Formation On Zno, Syed Monjur Ahmed, Reuben Oumnov, Orhan Kizilkaya, Randall W. Hall, Philip T. Sprunger, Robert L. Cook
Natural Sciences and Mathematics | Faculty Scholarship
Environmentally persistent free radicals (EPFRs), a group of emerging pollutants, have significantly longer lifetimes than typical free radicals. EPFRs form by the adsorption of organic precursors on a transition metal oxide (TMO) surface involving electron charge transfer between the organic and TMO. In this paper, dihalogenated benzenes were incorporated to study the role of electronegativity in the electron transfer process to obtain a fundamental knowledge of EPFR formation mechanism on ZnO. Upon chemisorption on ZnO nanoparticles at 250 °C, electron paramagnetic resonance (EPR) confirms the formation of oxygen adjacent carbon-centered organic free radicals with concentrations between 1016 and 1017 spins/g. …
Spatial Drivers Of Soil Health In A Post-Fire Watershed, Reed Jd Williams
Spatial Drivers Of Soil Health In A Post-Fire Watershed, Reed Jd Williams
Master's Theses
Wildland fires are increasing in both severity and intensity leading to severe and lasting biogeochemical effects on soil. The CZU lightning complex started on August 16th, 2020, and burned 86,509 acres causing severe social and ecological damage. To better understand the impact of fire on soil properties at the landscape scale, we created a digital soil mapping model with the inclusion of remotely sensed burn severity covariates. We combined a raster-stack of environmental covariates with rasters for fire severity and soil samples, to disentangle the relative contribution of fire to the spatial distribution of soil properties in the …
Cost Of Capital And Climate Risk In The Indonesian Bonds Market, Maulana Harris Harris Muhajir
Cost Of Capital And Climate Risk In The Indonesian Bonds Market, Maulana Harris Harris Muhajir
Bulletin of Monetary Economics and Banking
This study analyzes the impact of climate risk, cost of capital, and macroeconomic variables on the Indonesian bond market, focusing on non-ESG aware and ESG-aware bonds. Using a regression analysis, we found that the cost of capital has a significant negative effect on bond yields, highlighting the importance of policymakers focusing on initiatives that can lower the cost of capital for investors. Inflation rate was also found to have a significant positive effect on non-ESG aware bonds, which is a unique feature of the Indonesian bond market. We found that ESG-aware bond yields were negatively significant, indicating that investors are …
Camel Dung-Derived Biochar For The Removal Of Copper(Ii) And Chromium(Iii) Ions From Aqueous Solutions: Adsorption And Kinetics Studies, Kenesha Wilson, Jibran Iqbal, Amira Obaid Abdalla Obaid Hableel, Zainab Naji Khalaf Beyaha Alzaabi, Yousef Nazzal
Camel Dung-Derived Biochar For The Removal Of Copper(Ii) And Chromium(Iii) Ions From Aqueous Solutions: Adsorption And Kinetics Studies, Kenesha Wilson, Jibran Iqbal, Amira Obaid Abdalla Obaid Hableel, Zainab Naji Khalaf Beyaha Alzaabi, Yousef Nazzal
All Works
This study explores an innovative approach to tackle the critical issue of heavy metal ion contamination in aqueous solutions through the utilization of camel dung-derived biochar. In the context of global environmental concerns and the adverse impacts of heavy metal pollution on ecosystems and human health, the investigation focuses on copper(II) and chromium(III) ions, which are among the most pervasive pollutants originating from industrial activities. The research revealed that camel dung-derived biochar exhibits exceptional potential for the removal of copper(II) and chromium(III) ions, with removal efficiencies of more than 90% and adsorption capacities of 23.20 and 23.36 mg/g, respectively. The …
Synthesis And Characterization Of Renewable Heterogeneous Catalyst Zno Supported Biogenic Silica From Pineapple Leaves Ash For Sustainable Biodiesel Conversion, Nadila Pratiwi, Suriati Eka Putri, Yulia Shinta, Arya Ibnu Batara, Diana Eka Pratiwi, Abd Rahman, Nur Ahmad, Heryanto Heryanto
Synthesis And Characterization Of Renewable Heterogeneous Catalyst Zno Supported Biogenic Silica From Pineapple Leaves Ash For Sustainable Biodiesel Conversion, Nadila Pratiwi, Suriati Eka Putri, Yulia Shinta, Arya Ibnu Batara, Diana Eka Pratiwi, Abd Rahman, Nur Ahmad, Heryanto Heryanto
Karbala International Journal of Modern Science
This study reports on the first case of the low-cost and environmentally friendly ZnO/SiO2 heterogeneous catalyst from pineapple leaves ash (PLA). Catalyst shows excellent performance in catalyzing the transesterification of waste cooking oil (WCO) with methanol for biodiesel conversion. This study focuses on assessing the influence of Zn content on physicochemical characteristics, using XRD, FTIR, SEM, and N2 adsorption-desorption methods. In addition, three different Zn content levels (20, 25, and 30 %wt) were applied. The results showed that all ZnO/SiO2 samples exhibited characteristics suitable for use as catalyst with an average crystallite size of 31.83-34.15 nm, and a surface area …
Palladium (0) Nanoparticles Distributed On Lanthanum (Iii) Oxide As An Effective Catalyst For The Methanolysis Of Hydrazine-Borane To Produce Hydrogen, Adem Rüzgar, Lokman Şener, Yaşar Karataş, Mehmet Gülcan
Palladium (0) Nanoparticles Distributed On Lanthanum (Iii) Oxide As An Effective Catalyst For The Methanolysis Of Hydrazine-Borane To Produce Hydrogen, Adem Rüzgar, Lokman Şener, Yaşar Karataş, Mehmet Gülcan
Turkish Journal of Chemistry
Pd (0) nanoparticles (NPs) distributed on lanthanum (III) oxide were ex situ generated from the reduction of Pd2+ ions using NaBH4 as reducing agent. The Pd/La2O3 displayed good catalytic activity in H2(g) releasing from the hydrazine-borane (HB) methanolysis reaction and it was identified by advanced techniques. Pd/La2O3 was found to be an active catalyst procuring three equiv. H2(g) per mole of HB. The results from TEM images represent the formation of Pd (0) NPs with an average particle size of 1.94 ± 0.1 nm on the surface of La2O3. Moreover, Pd/La2O3 with various Pd loadings were prepared and tested as …
Commercially Available Products In Increase Soil Water-Holding Capacity, Shital Poudyal, Jake Powell, Rowe Zwahlen, Grant Cardon
Commercially Available Products In Increase Soil Water-Holding Capacity, Shital Poudyal, Jake Powell, Rowe Zwahlen, Grant Cardon
All Current Publications
Although adding organic matter is traditionally the most effective way to enhance soil water-holding capacity, several commercial products in the market also have the potential to increase soil water-holding capacity. In this fact sheet, we discuss the properties and characteristics of those commercially available products and recommended application rates. We also explore some limitations of using these products.
The Use Of Adsorption Technology In The Removal Of Dyes And Heavy Metals From Aqueous Solution By Agricultural Wastes, Ahmed E. Alprol
The Use Of Adsorption Technology In The Removal Of Dyes And Heavy Metals From Aqueous Solution By Agricultural Wastes, Ahmed E. Alprol
Blue Economy
The removal of dyes and heavy metals from wastewater has been a source of concern, both in terms of appearance and health. The removal of dyes and heavy metals from textile effluents on a continuous industrial scale has received a lot of attention in recent year. Various plant-derived wastes are often suggested for the treatment of heavy metals and dyes; these pollutants are sustainable due to their natural abundance, efficacy, and low cost. Adsorption process has emerged as the most widely used and successful method for water and wastewater treatment. The present study's focus, however, is on popularizing sustainable solutions …
New Features Of Laboratory-Generated Epfrs From 1,2-Dichlorobenzene (Dcb) And 2‑Monochlorophenol (Mcp), Lavrent Khachatryan, Marwan Y. Rezk, Divine Nde, Farhana Hasan, Slawomir Lomnicki, Dorin Boldor, Robert Cook, Phillip Sprunger, Randall W. Hall, Stephania Cormier
New Features Of Laboratory-Generated Epfrs From 1,2-Dichlorobenzene (Dcb) And 2‑Monochlorophenol (Mcp), Lavrent Khachatryan, Marwan Y. Rezk, Divine Nde, Farhana Hasan, Slawomir Lomnicki, Dorin Boldor, Robert Cook, Phillip Sprunger, Randall W. Hall, Stephania Cormier
Natural Sciences and Mathematics | Faculty Scholarship
The present research is primarily focused on investigating the characteristics of environmentally persistent free radicals (EPFRs) generated from commonly recognized aromatic precursors, namely, 1,2-dichlorobenzene (DCB) and 2- monochlorophenol (MCP), within controlled laboratory conditions at a temperature of 230 °C, termed as DCB230 and MCP230 EPFRs, respectively. An intriguing observation has emerged during the creation of EPFRs from MCP and DCB utilizing a catalyst 5% CuO/SiO2, which was prepared through various methods. A previously proposed mechanism, advanced by Dellinger and colleagues (a conventional model), postulated a positive correlation between the degree of hydroxylation on the catalyst’s surface (higher hydroxylated, HH and …
The Effect Of Organic And Chemical Fertilizers On The Activity Of Soil Enzymes In Soils Of Different Compositions, Elif Yağanoğlu, Adi̇l Aydin
The Effect Of Organic And Chemical Fertilizers On The Activity Of Soil Enzymes In Soils Of Different Compositions, Elif Yağanoğlu, Adi̇l Aydin
Turkish Journal of Agriculture and Forestry
In this study, the effects of chemical (20:20:0 compound) and organic (barnyard) fertilizers applied to different textured soils on several soil enzyme (urease, acid phosphatase, alkaline phosphatase, and dehydrogenase) activities were investigated. The research was conducted under greenhouse conditions with (beans and corn) and without crops. Considering the results of the preexperiment analysis of the soils, a 40-g pot–1 of farmyard manure was placed into the pots in which organic fertilizer would be applied in clay and silty loam soils, and a 50-g pot–1 of farmyard manure was added to sandy loam soil; in addition, a 0.25-g pot–1 of 20:20:0 …
Zinc And Manganese Effect Seed Quality And Germination In Common Bean (Phaseolus Vulgaris L.), Mehrdad Yarnia, Masoud Soltani̇ Bouljak, Parisa Bolouri, İnci̇ Tolay
Zinc And Manganese Effect Seed Quality And Germination In Common Bean (Phaseolus Vulgaris L.), Mehrdad Yarnia, Masoud Soltani̇ Bouljak, Parisa Bolouri, İnci̇ Tolay
Turkish Journal of Agriculture and Forestry
Zinc (Zn) and manganese (Mn) are important micronutrients in plant growth and development. In this study, the effect of Zn and Mn sulfate treatments at different growth stages of mother plants in common bean on seed production and germination potential was carried out. Results showed that zinc sulfate (ZnSo4) treatments significantly affected yield and pod number per plant compared to manganese sulfate tetrahydrate (MnSO4) treatments. Treatment in any form or at any stage of growth increased yield and its components in common bean. The highest efficiency of ZnSO4 was obtained in the pod production stage; MnSO4 enjoyed greater efficiency in …
Optimum Phosphate Ion Removal From Aqueous Solutions Using Roller Kiln Industrial Solid Waste, Dalia Amer Ali, Walaa A. Abdelwahab, Mai Hassan Roushdy
Optimum Phosphate Ion Removal From Aqueous Solutions Using Roller Kiln Industrial Solid Waste, Dalia Amer Ali, Walaa A. Abdelwahab, Mai Hassan Roushdy
Chemical Engineering
Water scarcity is the most imperative predicament that concerns the population. In this research, a roller kiln (RK) industrial solid waste was used in the adsorption of phosphate ions from aqueous solutions thus converting a waste to wealth through aiding in serving as a water treatment application. The RK waste was produced from an Egyptian factory with a fow rate of million tons/ day. Surface characterization for this solid waste was performed including transmission electron microscopy (TEM), X-ray difraction (XRD), X-ray fuorescence (XRF), Fourier transform infra-red (FTIR), zeta potential (ZP), and particle size distribution (PSD). Based on the kinetics and …
Impacts Of Climate Change And Agricultural Practices On Nitrogen Processes, Genes, And Soil Nitrous Oxide Emissions: A Quantitative Review Of Meta-Analyses, Dafeng Hui, Avedananda Ray, Lovish Kasrija, Jaekedah Christian
Impacts Of Climate Change And Agricultural Practices On Nitrogen Processes, Genes, And Soil Nitrous Oxide Emissions: A Quantitative Review Of Meta-Analyses, Dafeng Hui, Avedananda Ray, Lovish Kasrija, Jaekedah Christian
Biology Faculty Research
Microbial-driven processes, including nitrification and denitrification closely related to soil nitrous oxide (N2O) production, are orchestrated by a network of enzymes and genes such as amoA genes from ammonia-oxidizing bacteria (AOB) and archaea (AOA), narG (nitrate reductase), nirS and nirK (nitrite reductase), and nosZ (N2O reductase). However, how climatic factors and agricultural practices could influence these genes and processes and, consequently, soil N2O emissions remain unclear. In this comprehensive review, we quantitatively assessed the effects of these factors on nitrogen processes and soil N2O emissions using mega-analysis (i.e., meta-meta-analysis). The results showed that global warming increased soil nitrification and denitrification …