Search Results - "Ballard, John H."

A simple method for the synthesis of biochar nanodots using hydrothermal reactor by Guo, Fuyu, Bao, Li, Wang, Hanrui, Larson, Steven L., Ballard, John H., Knotek-Smith, Heather M., Zhang, Qinku, Su, Yi, Wang, Xingxiang, Han, Fengxiang

“…Biochar is a stable carbon rich by-product synthesized through pyrolysis of plant and animal based biomass, and nano-biochar material has gained increasing…”
Get full text

Rapid Screening for Uranium in Soils Using Field-Portable X‑ray Fluorescence Spectrometer: A Comparative Study by Proctor, Georgio, Wang, Hanrui, Larson, Steven L, Ballard, John H, Knotek-Smith, Heather, Waggonor, Charles, Unz, Ron, Li, Jiangxia, McComb, Jackeline, Jin, Decheng, Arslan, Zikri, Han, Fengxiang

“…Depleted uranium (DU) armor-penetrating munitions are used on testing and training ranges leading to elevated concentrations of U in range soils. To prevent…”
Get full text

Functionalization of clay surface for the removal of uranium from water by Bao, Li, Guo, Fuyu, Wang, Hanrui, Larson, Steven L., Ballard, John H., Knotek-Smith, Heather M., Zhang, Qinku, Nie, Jing, Celik, Ahmet, Islam, Saiful M., Dasari, Shalom, Zhang, Naiming, Han, Fengxiang

“…A modification method of clay mineral surface was developed to improve its adsorption capacity of uranium. Uranium is a radionuclide with high toxicity and…”
Get full text

A laboratory simulation to investigate effects of moistures on U distribution among solid phase components in army range soils by Cooper, Precious, Olafuyi, Lanre, Ibrahim, Naira, Kazery, Joseph, Larson, Steven L., Ballard, John H., Celik, Ahmet, Dasari, Shaloam, Islam, Saiful M., Han, Fengxiang X.

“…Uranium is a naturally occurring radioactive trace element found in rocks, soils, and coals. U may contaminate groundwater and soil from nuclear power plant…”
Get full text

A laboratory preparation procedure for studying bioaccumulation of U and its subcellular form in earthworms (Diplocardia spp.) by Olafuyi, Lanre, Ibrahim, Naira, Nie, Jing, Cooper, Precious, Larson, Steven L., Ballard, John H., Celik, Ahmet, Dasari, Shaloam, Islam, Saiful M., Han, Fengxiang X.

“…Uranium (U) is a ubiquitous trace element in soils. With increasing in application of U in nuclear energy and nuclear weapon, a large amount of U was…”
Get full text

Laboratory spiking process of soil with various uranium and other heavy metals by Chen, Liangmei, Larson, Steven L., Ballard, John H., Ma, Youhua, Zhang, Qinku, Li, Jiangxia, Wu, Linchun, Arslan, Zikri, Han, Fengxiang X.

“…[Display omitted] Laboratory studies using metal spiked soils are challenging due to soil heterogeneity. This work provides an easy, quick, precise, and…”
Get full text

A novel laboratory simulation system to uncover the mechanisms of uranium upward transport in a desert landscape by Zhang, Qinku, Larson, Steven L., Ballard, John H., Cheah, Pohlee, Kazery, Joseph A., Knotek-Smith, Heather M., Han, Fengxiang X.

“…[Display omitted] After depleted uranium (DU) is deposited in the environment, it corrodes producing mobile uranium species. The upward transport mechanism in…”
Get full text

Laboratory simulation of uranium metal corrosion in different soil moisture regimes by Zhang, Qinku, Larson, Steven L., Ballard, John H., Cheah, Pohlee, Zhu, Xianchun, Knotek-Smith, Heather M., Han, Fengxiang X.

“…[Display omitted] A novel laboratory simulation system has been developed for the study of the corrosion of uranium metal in soils. Corrosion and…”
Get full text

Microbially Induced Carbonate Precipitation Techniques for the Remediation of Heavy Metal and Trace Element–Polluted Soils and Water by Chen, Xue, Zhang, Dan, Larson, Steven L., Ballard, John H., Knotek-Smith, Heather M., Nie, Jing, Hu, Nan, Ding, Dexin, Han, Fengxiang X.

“…Heavy metal pollution in soil and water has been of worldwide concern due to their biotoxicity/ecotoxicity in the ecosystem, accumulation in the food chain,…”
Get full text

Uranium metal corrosion in soils with different soil moisture regimes by Zhang, Qinku, Larson, Steven L., Ballard, John H., Zhu, Xianchun, Knotek-Smith, Heather M., Han, Fengxiang X.

“…•Corrosion started at angled cracks, small pits and edges of DU metal fragments.•UO2.8 and UO3 appeared in the saturated soil. UO3 was observed in the field…”
Get full text

Uranium Adsorption on Three Nanohydroxyapatites Under Various Biogeochemical Conditions by Cooper, Precious, Nie, Jing, Larson, Steven L., Ballard, John H., Knotek-Smith, Heather M., Celik, Ahmet, Dasari, Shaloam, Zhu, Xianchun, Han, Fengxiang X.

“…Uranium is a naturally occurring trace element and radionuclide. Uranium is introduced in the environment during industrial activities and nuclear energy…”
Get full text

Electrokinetic-enhanced phytoremediation of uranium-contaminated soil using sunflower and Indian mustard by Li, Jiangxia, Zhang, Jun, Larson, Steven L., Ballard, John H., Guo, Kai, Arslan, Zikri, Ma, Youhua, Waggoner, Charles A., White, Jeremy R., Han, Fengxiang X.

“…Electrokinetic-enhanced phytoremediation is an effective technology to decontaminate heavy metal contaminated soil. In this study, we examined the effects of…”
Get full text

Removing uranium (VI) from aqueous solution with insoluble humic acid derived from leonardite by Meng, Fande, Yuan, Guodong, Larson, Steven L., Ballard, John H., Waggoner, Charles A., Arslan, Zikri, Han, Fengxiang X.

“…The occurrence of uranium (U) and depleted uranium (DU)-contaminated wastes from anthropogenic activities is an important environmental problem. Insoluble…”
Get full text

Novel Magnetic Nanocarbon and Its Adsorption of Hg and Pb from Water by Guo, Kai, Larson, Steven L., Ballard, John H., Arslan, Zikri, Zhang, Rong, Ran, Yong, Su, Yi, Han, Fengxiang X.

“…Lead and mercury are two of the most toxic heavy metals in environments. Mesosilicate-templated magnetic nanocarbons with ascorbic acid as carbon precursor…”
Get full text

Influences of U Sources and Forms on Its Bioaccumulation in Indian Mustard and Sunflower by Meng, Fande, Jin, Decheng, Guo, Kai, Larson, Steven L., Ballard, John H., Chen, Liangmei, Arslan, Zikri, Yuan, Guodong, White, Jeremy R., Zhou, Lixiang, Ma, Youhua, Waggoner, Charles A., Han, Fengxiang X.

“…Anthropogenic activities, such as ore mining and processing, nuclear power generation, and weapon tests, have generated uranium (U) contamination to soils and…”
Get full text

Kinetics and Thermodynamics of Uranium (VI) Adsorption onto Humic Acid Derived from Leonardite by Meng, Fande, Yuan, Guodong, Larson, Steven L, Ballard, John H, White, Jeremy R, Arslan, Zikri, Han, Fengxiang X

“…Humic acid (HA) is well known as an inexpensive and effective adsorbent for heavy metal ions. However, the thermodynamics of uranium (U) adsorption onto HA is…”
Get full text

Earthworm Enhanced Phytoremediation of U in Army Test Range Soil with Indian Mustard and Sunflower by Guo, Fuyu, Proctor, Georgio, Larson, Steven L, Ballard, John H, Zan, Shuting, Yang, Ruyi, Wang, Xingxiang, Han, Fengxiang X

“…Wars and military testing have resulted in the depleted uranium (DU) contamination of military proving grounds. In the present study, a pot experiment was…”
Get full text

Uranium Biomineralization with PhosphateBiogeochemical Process and Its Application by Zhang, Dan, Chen, Xue, Larson, Steven L, Ballard, John H, Knotek-Smith, Heather M, Ding, Dexin, Hu, Nan, Han, Fengxiang X

“…Anthropogenic activities involving uranium mining, nuclear fuel processing, nuclear weapon production, or nuclear power plant accidents have polluted soil and…”
Get full text

Distribution and Fractionation of Uranium in Weapon Tested Range Soils by Kazery, Joseph A, Proctor, Georgio, Larson, Steve L, Ballard, John H, Knotek-Smith, Heather M, Zhang, Qinku, Celik, Ahmet, Dasari, Shaloam, Islam, Saiful M, Tchounwou, Paul B, Han, Fengxiang X

“…Uranium is a chemically toxic and radioactive heavy metal. Depleted uranium (DU) is the byproduct of the uranium enrichment process, with a majority of U as…”
Get full text

Adsorption and characterization of exopolysaccharides from Rhizobium tropici on clay minerals by Larson, Steven L., Ballard, John H., Runge, Kauri A., Zhang, Huimin, Breland, Benjamin R., Nick, Zachary H., Weiss, Charles A., Han, Fengxiang X.

“…•Exopolysaccharides (EPS) adsorption on two clays reached the plateau after 4 hrs.•EPS adsorption on montmorillonite was described with parabolic diffusion…”
Get full text