MECHANISMS OF PENTACHLOROPHENOL ADSORPTION BY SOILS
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概要
- 論文の詳細を見る
The precipitation and adsorption of pentachlorophenol (PCP) on allophane was confirmed by adsorption experiments carried out at various pH values. The precipitation of PCP took place around base-unsaturated clay particles when the concentration of PCP exceeded solubility. The adsorption of PCP involves anion exchange reaction as well as physical adsorption due to van der Waals' force, and the PCP adsorbed as anions is released with greater when washed with deionized water. Allophane of Andosols appears to adsorb PCP largely as anions, while humus, halloysite, and allophane (molar SiO_2/Al_2O_3 ratio about 2) seem to adsorb PCP mostly as molecules. The precipitation of PCP in micell might participate in the adsorption. PCP mixed with layer silicate clay minerals such as illite, montmorillonite, and kaolinite sublimated by about 200℃. In contrast to this, PCP mixed or adsorbed on allophane did not sublimate by 200℃ but burnt out between 250 and 500℃ showing a strong exothermic reaction.
- 一般社団法人日本土壌肥料学会の論文
著者
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Aomine Shigenori
Faculty Of Agriculture Kyushu University
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Choi Jyung
Faculty Of Agriculture Kyushu University:(present Address)faculty Of Agriculture Kyungbuk University
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Choi Jyung
Faculty Of Agriculture Kyushu University
関連論文
- IMOGOLITE OF CHILEAN VOLCANIC ASH SOILS
- RELATIONSHIPS BETWEEN THE INORGANIC COLLOID AND THE PARENT MATERIAL OF SOME VOLCANIC ASH SOILS IN MIYAGI AND IWATE PREFECTURES, JAPAN
- RELATIONSHIPS BETWEEN THE PETROLOGICAL NATURE AND THE CLAY MINERAL COMPOSITION OF VOLCANIC ASH SOILS DISTRIBUTED IN THE SUBURBS OF FUKUOKA-CITY, KYUSHU
- CLAY MINERALOGY OF SOME VOLCANIC ASH SOILS IN WHICH CRISTOBALITE PREDOMINATES
- HEAT OF IMMERSION OF SOIL ALLOPHANIC CLAYS WITH ORGANIC LIQUIDS
- CLAY MINERALS FROM DIALLAGE IN A WARM AND HUMID CLIMATE
- VERMICULITE IN SOME JAPANESE SOILS
- EFFECTS OF DRYING AND HEATING ON THE SURFACE AREA OF ALLOPHANE AND IMOGOLITE
- CLAY MINERALOGY OF THE SAPROLITE OF SOME VOLCANIC ROCKS IN JAPAN
- INFLUENCE OF DISPERSION TREATMENTS ON THE PROPERTIES OF SOIL COLLOIDS
- WEATHERING OF MONTMORILLONITE IN SOILS
- WEATHERING OF MONTMORILLONITE IN TUFFACEOUS SHALES UNDER SEVERE LEACHING
- IMOGOLITE IN SOME ANDO SOILS
- CLAY MINERALS OF SEDIMENTS IN THE YATSUSHIRO BAY
- CLAY MINERALS OF SOILS FROM OLIVINE BASALT IN KYUSHU
- DOES "ALLOPHANE B" EXIST IN JAPANESE VOLCANIC ASH SOILS?
- RETENTION OF MERCURY BY SOIL COLLOIDS : III. Adsorption of Mercury in Dilute Phenylmercuric Acetate Solutions
- FLOCCULATION OF ALLOPHANIC CLAYS BY ELECTROLYTES
- HEAT OF IMMERSION OF SOIL ALLOPHANIC CLAYS
- GRADE OF WEATHERING AND FERTILITY OF VOLCANIC ASH SOILS OF ASO VOLCANO
- IMOGOLITE OF IMOGO-LAYERS IN KYUSHU
- OCCURRENCE OF GIBBSITE IN WEATHERING OF VOLCANIC MATERIALS AT KUROISHIBARU, KUMAMOTO
- RETENTION OF MERCURY BY SOILS : I. Mercury Residues of Paddy and Orchard Soils
- EFFECTS OF ALLOPHANIC CIAYS ON THE ENZYMATIC ACTIVITY OF BETA-AMYLASE
- NITROGEN FERTILITY AND HUMIC MATTER OF CHILEAN ANDOSOLS
- RETENTION OF MERCURY BY SOILS : II. Adsorption of Phenylmercuric Acetate by Soil Colloids
- MINERALOGY OF GEL-LIKE SUBSTANCE IN THE PUMICE BED IN KANUMA AND KITAKAMI DISTRICTS
- EFFECTS OF ALLOPHANE ON THE ENZYMATIC ACTIVITY OF A PROTEASE
- MECHANISM OF INHIBITORY EFFECT OF ALLOPHANE AND MONTMORILLONITE ON SOME ENZYMES
- EFFECTS OF EXCHANGEABLE CATIONS ON THE HIGH TEMPERATURE EXOTHERMIC PEAK OF ALLOPHANE
- HYDROXY-AL COMPLEXES OF MONTMORILLONITE AND VERMICULITE AND IDENTIFICATION OF INTERGRADES OF MONTMORILLONITE-CHLORITE AND VERMICULITE-CHLORITE IN SOILS
- EFFECTS OF THE SOIL ON THE ACTIVITY OF PENTACHLOROPHENOL
- MECHANISMS OF PENTACHLOROPHENOL ADSORPTION BY SOILS
- INFLUENCE OF pH ON THE FORMATION OF THE HYDROXYAl-MONTMORILLONITE COMPLEX
- ADSORPTION OF PENTACHLOROPHENOL BY SOILS
- THE pH OF CHILEAN VOLCANIC ASH SOILS "TRUMAOS"
- SO-CALLED 14 Å CLAY MINERALS IN SOME ANDO SOILS
- SOIL FABRICS OF THE PLOWED LAYER OF FLOODED RICE FIELDS