Academic literature on the topic 'Permeable reactive barrier p'

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Journal articles on the topic "Permeable reactive barrier p"

1

Summers, Robert, and David Weaver. "Phosphorus Retention of a Permeable Reactive Barrier Surpassed by an Unvegetated Artificial Pond." Environment and Natural Resources Research 11, no. 1 (2021): 25. http://dx.doi.org/10.5539/enrr.v11n1p25.

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An artificial pond bisected by a phosphorus (P) retentive permeable reactive barrier (PRB) alongside Forrest Highway, Coolup, Western Australia was designed to remove P from farmland runoff. The pond bed was made of subsoil and road construction materials likely to have a relatively high P sorption capacity, and there was no vegetation in the bed of the pond. Flow through the pond was intercepted by the PRB, constructed from a mixture of sand, coarse crushed limestone, and bauxite residue (with 10% phospho-gypsum). The effectiveness of P removal and the impact of the PRB was measured by compar
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Hyodo, Fuminori, Kai-Hsiang Chuang, Artem G. Goloshevsky, et al. "Brain Redox Imaging Using Blood—Brain Barrier-Permeable Nitroxide MRI Contrast Agent." Journal of Cerebral Blood Flow & Metabolism 28, no. 6 (2008): 1165–74. http://dx.doi.org/10.1038/jcbfm.2008.5.

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Reactive oxygen species (ROS) and compromised antioxidant defense may contribute to brain disorders such as stroke, amyotrophic lateral sclerosis, etc. Nitroxides are redox-sensitive paramagnetic contrast agents and antioxidants. The ability of a blood—brain barrier (BBB)-permeable nitroxide, methoxycarbonyl-2,2,5,5-tetramethylpyrrolidine-1-oxyl (MC-P), as a magnetic resonance-imaging (MRI) contrast agent for brain tissue redox imaging was tested. MC-P relaxation in rodent brain was quantified by MRI using a fast Look-Locker T1-mapping sequence. In the cerebral cortex and thalamus, the MRI sig
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Soto-Rios, Paula Cecilia, Kazunori Nakano, Megumu Fujibayashi, Marco Leon-Romero, and Osamu Nishimura. "Lead removal efficiency using biosorbents as alternative materials for permeable reactive barriers." Water Science and Technology 70, no. 2 (2014): 307–14. http://dx.doi.org/10.2166/wst.2014.223.

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As alternative materials for heavy metal removal, this study investigated biosorbents to determine their suitability for permeable reactive barriers. The lead removal efficiencies of brown seaweed (Undaria pinnatifida) and reed (Phragmites australis) were determined under different conditions (batch and column system). The experimental results for these biomaterials fitted the Langmuir isotherm with high correlation values. It was verified that the influence of temperature on affinity was higher than that on adsorption capacity. While the lead removal efficiency of U. pinnatifida was higher th
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Bus, Agnieszka, Agnieszka Karczmarczyk, and Anna Baryła. "Permeable Reactive Barriers for Preventing Water Bodies from a Phosphorus-Polluted Agricultural Runoff-Column Experiment." Water 11, no. 3 (2019): 432. http://dx.doi.org/10.3390/w11030432.

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This paper aims to examine the potential of permeable reactive barriers (PRBs) as an in-situ removal approach for phosphate polluted agricultural runoff. Four different reactive materials (RMs) of: autoclaved aerated concrete (AAC), Polonite®, zeolite and limestone were tested. The study was conducted as a column experiment with a sandy loam soil type charging underlying RM layers with phosphorus (P) and a soil column without RM as a reference. The experiment was carried out over 90 days. During this time the P-PO4 load from the reference column equaled 6.393 mg and corresponds to 3.87 kg/ha.
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Choi, Jiyeon, Ardie Septian, and Won Sik Shin. "Influence of Salinity on the Removal of Ni and Zn by Phosphate-Intercalated Nano Montmorillonite (PINM)." Minerals 10, no. 11 (2020): 980. http://dx.doi.org/10.3390/min10110980.

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The salinity influence on the adsorptions of Ni and Zn onto phosphate-intercalated nano montmorillonite (PINM) were investigated. Single adsorption isotherm models fitted the single adsorption data well. The adsorption capacity of Ni was higher than that of Zn onto PINM at different salinities. The single adsorption parameters from Langmuir model (QmL and bL) were compared with the binary adsorption (QmL* and bL*). The QmL* of Zn was lower than that of Ni. The simultaneous presence of Ni and Zn decreased the adsorption capacities. The single and binary adsorptions onto PINM were affected by th
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6

Choi, Jiyeon, Ardie Septian, and Won Sik Shin. "The Influence of Salinity on the Removal of Ni and Zn by Sorption onto Iron Oxide- and Manganese Oxide-Coated Sand." Sustainability 12, no. 14 (2020): 5815. http://dx.doi.org/10.3390/su12145815.

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The influence of salinity on the single and binary sorption of Ni and Zn onto iron oxide- and manganese oxide-coated sand (IOCS and MOCS) was investigated at pH = 5. The single sorption experimental data were fitted to Freundlich, Langmuir, Dubinin–Radushkevich, and Sips models, and a nonlinear sorption isotherm was observed (NF = 0.309–0.567). The higher Brunauer–Emmett–Teller (BET) surface area (ABET) and cation exchange capacity (CEC) of MOCS contributed to the higher maximum sorption capacities (qmL) of Ni and Zn than that of IOCS. The Ni sorption capacities in the single sorption were hig
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Murphy, Kelsey, Killian Llewellyn, Samuel Wakser, et al. "Mini-GAGR, an intranasally applied polysaccharide, activates the neuronal Nrf2-mediated antioxidant defense system." Journal of Biological Chemistry 293, no. 47 (2018): 18242–69. http://dx.doi.org/10.1074/jbc.ra117.001245.

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Oxidative stress triggers and exacerbates neurodegeneration in Alzheimer's disease (AD). Various antioxidants reduce oxidative stress, but these agents have little efficacy due to poor blood–brain barrier (BBB) permeability. Additionally, single-modal antioxidants are easily overwhelmed by global oxidative stress. Activating nuclear factor erythroid 2 (NF-E2)-related factor 2 (Nrf2) and its downstream antioxidant system are considered very effective for reducing global oxidative stress. Thus far, only a few BBB-permeable agents activate the Nrf2-dependent antioxidant system. Here, we discovere
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8

Schwarz, Alex O., and Bruce E. Rittmann. "The diffusion-active permeable reactive barrier." Journal of Contaminant Hydrology 112, no. 1-4 (2010): 155–62. http://dx.doi.org/10.1016/j.jconhyd.2009.12.004.

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9

Thiruvenkatachari, R., S. Vigneswaran, and R. Naidu. "Permeable reactive barrier for groundwater remediation." Journal of Industrial and Engineering Chemistry 14, no. 2 (2008): 145–56. http://dx.doi.org/10.1016/j.jiec.2007.10.001.

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10

Banasiak, Laura Joan, Buddhima Indraratna, Glenys Lugg, Udeshini Pathirage, Geoff McIntosh, and Neil Rendell. "Permeable reactive barrier rejuvenation by alkaline wastewater." Environmental Geotechnics 2, no. 1 (2015): 45–55. http://dx.doi.org/10.1680/envgeo.13.00122.

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