S spectrometer (ICP-MS) (iCAP Qc, Thermo Fisher Scientific, Waltham, MA, USA
S spectrometer (ICP-MS) (iCAP Qc, Thermo Fisher Scientific, Waltham, MA, USA) (margin of error =). The key ions within the leachate have been determined by ion chromatographs (ICS-90 and ICS-2000, Dionex Corporation, Sunnyvale, CA, USA) (margin of error =) or inductively coupled plasma atomic emission spectrometer (ICP-AES) ICP-AES (ICPE-9800, Shimadzu Corporation, Japan) (margin of error =).Minerals 2021, 11,6 (-)-Irofulven In stock ofTable 1. List of laboratory and in situ column experimental situations. Case Situation Utilised Rock Sample Usage of RS Thickness Weight Soil density Rock layer Column density Porosity Pore volume Thickness Weight Soil density Column density Porosity Pore volume Thickness Weight Soil density Column density Porosity Pore volume cm g g/cm3 g/cm3 cm3 cm g g/cm3 g/cm3 cm3 cm g g/cm3 g/cm3 cm3 20.0 620 two.71 1.46 46.1 196 L-T1 L-T1-AL I-T1 I-T1AL L-T2 L-T2-Im I-T2 I-T2-Im In Situ T2 Sample AL 20.0 2288 2.71 1.35 50.2 853 four.00 428 two.70 1.26 53.three 181 24.0 2716 20.0 663 2.76 1.56 43.4 184 20.0 663 Im 20.0 638 (T2: 447 g, RS: 191 g) two.74 1.50 45.1 192 20.0 2540 two.76 1.50 45.8 778 20.0 2540 Im 26.0 3630 (T2: 2540 g, RS: 1090 g) two.74 1.64 40.0Laboratory T1 Sample AL 20.0 620 two.71 1.46 46.1 196 4.00 103 two.70 1.21 55.2 46.eight 24.0 723 IN SituLaboratory20.0 2288 two.71 1.35 50.two 853 Adsorption layerTotal47.650.72.76 1.56 43.42.76 1.50 45.eight: Bottom adsorption layer. : Mixing rock sample with RS as immobilizer.3. Outcomes and Discussion 3.1. Chemical and Mineralogical Properties of Rock Samples and River Sediment The two rock samples are predominantly composed of RP101988 Epigenetics silicate and alumino-silicate minerals like quartz (SiO2 ) and albite (NaAlSi3 O8 ), and contain kaolinite (Al4 Si4 O10 (OH)8 ) in minor amounts. Additionally, the T2 sample also consists of muscovite (KAl2 [(OH)two /AlSi3 O10 ]) in minor amounts (Tables two and three). While XRD could not detect trace minerals, the T1 sample contains trace amounts of pyrite, which was detected by the microscopic observation. The arsenic content material of samples T1 and T2 had been six.eight and 20.5 mg/kg, respectively, that is inside or larger than the reported average As content material of sedimentary rocks (50 mg/kg) [54,55].Minerals 2021, 11,7 ofTable 2. Chemical composition of excavated rock and RS (river sediment) samples. Sample SiO2 TiO2 Al2 O3 Fe2 O3 MnO MgO CaO Na2 O K2 O P2 O5 SO3 Total As LOI TOC IC Amorphous Al Amorphous Fe wt. wt. wt. wt. wt. wt. wt. wt. wt. wt. wt. wt. mg/kg wt. wt. wt. mg/g mg/g T1 68.2 0.7 16.five six.3 0.1 two.6 0.9 0.1 two.9 1.6 0.2 99.9 six.8 four.eight 0.22 0.11 0.six 13.four T2 64.3 0.six 18.eight 5.three 0.1 2.3 two.four three.0 2.7 0.1 0.four 99.9 20.5 7.2 0.20 0.52 2.three four.8 RS 62.0 1.0 20.9 7.7 0.1 2.9 1.8 0.1 1.9 1.five 0.1 99.eight 11.two four.four 0.20 0.01 1.4 three.Table three. Mineral composition of used rock and RS samples. Sample Quartz Albite Siderite Muscovite Kaolinite + + + T1 +++ ++ T2 +++ ++ + + + RS +++ ++Intensity of X-ray peak: +++:robust, ++:medium, +:weak.The RS sample is predominantly composed of silicate and alumino-silicate minerals like quartz and albite, and consists of minor volume of clay minerals, for instance a kaolinite (Tables two and three). Although the As content material from the RS was 11.2 mg/kg, which can be slightly greater than that of T1 sample, As leaching concentration in the RS by batch experiments was under the Japanese environmental common (0.01 mg/dm3 ). Amorphous Al and Fe contents inside the RS were 1.four and three.9 mg/g, respectively, which are comparatively lower compared to iron-rich all-natural adsorbents (ten to 100 mg/g), that are obtained.
