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Lead In Paint-Contaminated Residential Soils With Varying Physicochemical Properties From Three Large Us Cities: Assessment Of Geochemical Forms And Recommendations On Amendments For Immobilization, Hadeer Saleh, Dibyendu Sarkar, Washington Braida, Steve Larson, Rupali Datta Dec 2023

Lead In Paint-Contaminated Residential Soils With Varying Physicochemical Properties From Three Large Us Cities: Assessment Of Geochemical Forms And Recommendations On Amendments For Immobilization, Hadeer Saleh, Dibyendu Sarkar, Washington Braida, Steve Larson, Rupali Datta

Michigan Tech Publications, Part 2

Lead in yard soils has been recognized as the principal source of excess lead absorption among young children. The hazard imposed by soil lead is dependent on the geochemical forms of lead in soils. Soil properties such as pH, soil organic matter, clay, and carbonate content influence the geochemical forms of lead in soil. This study was conducted to investigate the correlation between soil properties and the geochemical speciation of lead in lead paint-contaminated residential soils from three major US cities. A comprehensive field survey was conducted, involving the collection of soils from ten houses in each of the cities: …


Hazards And Perceptions Of Cigarette And E-Cigarette Waste, Jossalyn Rogalski Dec 2023

Hazards And Perceptions Of Cigarette And E-Cigarette Waste, Jossalyn Rogalski

Honors Theses

No abstract provided.


Eggshell-Alginate Composites (Eacs) As Eco-Friendly Adsorbents For Rhodamine B Uptake From Aqueous Solutions, Rusnadi Rusnadi, Mar’Atus Sholihah, Nurrahmi Handayani, Muhammad Ali Zulfikar Sep 2023

Eggshell-Alginate Composites (Eacs) As Eco-Friendly Adsorbents For Rhodamine B Uptake From Aqueous Solutions, Rusnadi Rusnadi, Mar’Atus Sholihah, Nurrahmi Handayani, Muhammad Ali Zulfikar

Karbala International Journal of Modern Science

The contamination of wastewater by Rhodamine B (RhB) poses a significant environmental concern due to its negative impacts on aesthetics, ecosystems, and human well-being. This study successfully synthesized eco-friendly egg-shell-alginate composites (EACs) as adsorbents by combining alginate solution, eggshell powder, and a 2% CaCl2 solu-tion. Characterization techniques including FTIR, SEM, TGA, and SAA were employed to analyze the EACs. FTIR analysis revealed characteristic absorption peaks corresponding to -OH groups, C=O groups, C-O groups, and the pres-ence of CO32-. The structural analysis confirmed the physical mixture of functional groups from eggshells and alginate, resulting in a homogeneous EACs mixture. TGA analysis …


Comparative Analysis Of Soil Properties, Microbial Community Composition, And Yield Responses To Cover Crops In Different Ecoregions Of South Texas, Daphne Zapsas Jul 2023

Comparative Analysis Of Soil Properties, Microbial Community Composition, And Yield Responses To Cover Crops In Different Ecoregions Of South Texas, Daphne Zapsas

Theses and Dissertations

Comprehensive understanding of soil properties, their interdependencies, and the effects of management practices is crucial for designing sustainable agricultural strategies. By adopting site-specific and need-based practices that enhance soil health, farmers can optimize crop growth, increase yield, and contribute to long-term environmental sustainability. Cover crops have been recognized for enhancing soil fertility, promoting microbial activity, and increasing organic matter content. However, while their effectiveness is well documented in temperate regions with readily available water, their impact in water limited systems in subtropical regions remains mixed. The aim of this study is to assess soil conditions in four different farms across …


Pleurotus Spp. As Agents Of Mycoremediation: A Review, Colin Innes Jun 2023

Pleurotus Spp. As Agents Of Mycoremediation: A Review, Colin Innes

University Honors Theses

Elemental and molecular contaminants of anthropogenic origin represent an increasing threat to virtually all terrestrial and aquatic environments as well as their surrounding atmosphere. The decontamination and restoration of these environments pose a significant and expensive challenge. Although chemical treatment or physical removal of contaminated substrates often is the most direct response to eliminate contaminants, due to the complexity and sensitivity of many natural systems, technologies involving biological remediation can provide viable alternatives. While plant, bacterial, and fungal organisms have the abilities to accumulate or to metabolize toxic compounds, fungal organisms are uniquely suited to do so. Their fast growth …


Anaerobic Digestion Reduces Seed Germination And Viability Of Six Plant Species From The Upper Nile Valley, Egypt, Ahmed M. Abbas, Mohamed Abdelazeem, Stephen J. Novak Feb 2023

Anaerobic Digestion Reduces Seed Germination And Viability Of Six Plant Species From The Upper Nile Valley, Egypt, Ahmed M. Abbas, Mohamed Abdelazeem, Stephen J. Novak

Biology Faculty Publications and Presentations

Anaerobic digestion (AD) involves the breakdown of a substrate by mixed microbial communities in the absence of free oxygen. This process has many benefits leading to the production of bioenergy (biogas) and fertilizers (bio-fertilizers). Unfortunately, the bio-fertilizer made using AD may be contaminated with weed seeds and may have the potential of infesting the fields to which it is applied. Thus, the goal of this study is to determine the effects of AD on seed germination and viability of two undesirable crop plants (Triticum aestivum and Sorghum bicolor) and four weed species of reclaimed agricultural land near Qena, …


Role Of Microorganisms In Horticulture To Improve Plant Quality, Domenico Prisa Jan 2023

Role Of Microorganisms In Horticulture To Improve Plant Quality, Domenico Prisa

Karbala International Journal of Modern Science

One of the most anticipated challenges in the field of agriculture is to ensure high production levels while limiting the use of environmentally harmful synthetic chemicals. One of the most interesting strategies to overcome this challenge is the exploitation of the interactions between soil microorganisms and plants which result in stimulating plants’ natural activity. The interactions among mycorrhiza, growth-promoting microorganisms and plants play a crucial role in soil fertility, biocontrol and protection. The use of mixed microbial products can simulate interactions between fungi and bacteria, realising all the benefits that can be obtained from these associations in terms of quantity …