COMPETITIVE SORPTION CHARACTERISTICS OF HEAVY METALS IN HUMUS-SOIL ZONES DEVOLOPED ON MUDSTONE AND SPILITE (HARZ FOREST, GERMANY)

2011 ◽  
Author(s):  
Ali Gurel
Keyword(s):  
Heavy Metals ◽  
Competitive Sorption ◽  
Humus Soil ◽  
Sorption Characteristics

Competitive sorption of intermixed heavy metals in water repellent soil in Southern Australia

2006 ◽  
Vol 52 (4) ◽  
pp. 685-690 ◽  
Author(s):  
P. J. Li ◽  
F. Stagnitti ◽  
X. Xiong ◽  
P. Li
Keyword(s):  
Heavy Metals ◽  
Water Repellent ◽  
Competitive Sorption

scholarly journals Chemical modification of Byrsonima crassifolia with citric acid for the competitive sorption of heavy metals from water

2014 ◽  
Vol 12 (9) ◽  
pp. 2867-2880 ◽  
Author(s):  
J. Monroy-Figueroa ◽  
D. I. Mendoza-Castillo ◽  
A. Bonilla-Petriciolet ◽  
M. A. Pérez-Cruz
Keyword(s):  
Heavy Metals ◽  
Citric Acid ◽  
Chemical Modification ◽  
Competitive Sorption ◽  
Byrsonima Crassifolia

Competitive sorption of metals in water repellent soils: Implications for irrigation recycled water

Soil Research ◽  
2005 ◽  
Vol 43 (3) ◽  
pp. 351 ◽  
Author(s):  
X. Xiong ◽  
F. Stagnitti ◽  
N. Turoczy ◽  
G. Allinson ◽  
P. Li ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Sorption Capacity ◽  
Water Conservation ◽  
Crop Production ◽  
South Australia ◽  
Water Repellent ◽  
Competitive Sorption ◽  
Recycled Water ◽  
Kaolinite Clay ◽  
High Sorption

Australia is a water-stressed nation and demand on potable water supply is increasing. Consequently water conservation and reuse are increasingly becoming important. Irrigation of recycled wastewater on water repellent soils is a technology that is being trialled as a means of improving crop production and conserving potable supply. However, recycled water contains potentially harmful heavy metals. This paper reports the competitive sorption and desorption of several common heavy metals found in soils collected from a farm located in the south-east of South Australia. The soil from this location is severely water repellent, but some sites were amended with kaolinite clay (Si4Al4O10(OH)8) about 7 and 15 years ago. The metals studied were Cu, Pb, Cd, Cr, Ni, and Zn. Competitive sorption of the metals was distinctly observed. For all heavy metals, the quantity of metal sorbed was higher in amended soil, and there was a strong correlation between the specific sorption to total sorption ratio and the amount of clay in the soil. The sorption intensities varied with metal, Cr, Pb, and Cu having a high sorption tendencies and Zn, Cd, and Ni having comparatively low sorption tendencies. The total sorption capacity for all metals increased in clay-treated soils compared with non-treated soils. On average, clay-amended water repellent soils had a 20–40% increased capacity to adsorb total metals; however, this increase was largely caused by the increased capacities to adsorb Zn, Cd, and Ni. The effect of clay treatment largely enhanced the sorption capacity of relatively weakly adsorbing heavy metals. The implications for using recycled wastewater on the long-term sustainable agro-environmental management of these soils are discussed.

scholarly journals A technology of experimental studies on the xenobiotic element sorption characteristics of representatives of the intestinal normal flora

2019 ◽  
Vol 9 (4) ◽  
pp. 4131-4135
Keyword(s):  
Experimental Data ◽  
Heavy Metals ◽  
Lactobacillus Acidophilus ◽  
Experimental Studies ◽  
General Level ◽  
Normal Flora ◽  
Organ Systems ◽  
Complex Variety ◽  
High Sorption ◽  
Sorption Characteristics

Modern views on the general level of intoxication of an organism by heavy metals are based solely on the extent of effects on organs and organ systems of macroorganisms while the impacts on representatives of the normal flora and their role in the organism’s mechanisms of detoxification as a whole are not taken into account. We proposed technology of experimental studies based on a complex variety of methods. The technology allows estimating the degree of effects of xenobiotic elements on representatives of the intestinal normal flora and their sorption characteristics, which is an important factor in the assessment of mechanisms of detoxification in oral intoxication. The obtained experimental data indicate high sorption characteristics of lead cations in the studied microorganisms, which, in our view, is primarily associated with microorganisms’ mechanisms of detoxification. The study found that the most pronounced bioaccumulative characteristics for lead were registered in Escherichia coli (65% of the total volume of the elements introduced in the substrate) and, in the case of cadmium, – Enterococcus faecium (33.2%). The minimal accumulation scores were revealed for Lactobacillus acidophilus (42.3% and 5.3%, respectively).

scholarly journals SCREENING OF THE CONTENT OF SOME HEAVY METALS AT THE HUMUS SOIL HORIZON OF THE TRANSCARPATHIAN REGION

2021 ◽  
Vol 87 (2) ◽  
pp. 107-116
Author(s):  
Sergii Sukharev ◽  
Larysa Bugyna ◽  
Oleksandra Pallah ◽  
Oksana Sukhareva ◽  
Volodymyr Drobnych ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Total Content ◽  
Soil Horizon ◽  
Potential Danger ◽  
Spearman Correlation ◽  
Mountainous Regions ◽  
Geological Features ◽  
Maximum Permissible Concentrations ◽  
Mobile Forms ◽  
Humus Soil

Based on the screening of some heavy metals (HMs) content in the humus soil horizon of the Transcarpathian region, the regularities of the distribution of HMs in the soils of different landscape zones have been established. It is shown that  increasing of the terrain height, the content of HMs in soils decreases (except for Mn and Hg) and for the total HMs content  the values of the Spearman correlation coefficient are: Cu – (-0.84); Zn – (-0.83); Mn 0.77; Mo – (-0.91); Co – (-0.82); Pb – (-0.83); Hg – absent; for the content of acid-soluble forms: Cu – absent; Zn – (-0.72); Mn 0.75; Mo – (-0.89); Co – (-0.86); Pb – (-0.77); Hg is absent. This pattern is associated with the tectonic and geological features of the different landscape zones. The calculation of the migration coefficient (the ratio of the content of acid-soluble forms to the gross content) has been shown that in mountainous regions this indicator has the highest value for Zn, Pb, and Cu. That means the potential danger of migration of these heavy me­tals and their bioavailability. This is probably connected to the type of soil in the mountai­nous areas of the region. A pronounced inter-element correlation of the HMs content in soils (except for Hg) has been established and the corresponding values of Pearson’s coefficients for the gross content are: Cu:Zn – 0,96; Cu:Mn – (-0,84); Cu:Mo – 0,89; Cu:Co – 0,99; Cu:Pb – 0,87; Zn:Mn – (-0,79); Zn:Mo – 0,91; Zn:Co – 0,96; Zn:Pb – 0,86; Mn:Mo – (-0,86); Mn:Co – (-0,84); Mn:Pb – (-0,75); Mo:Co – 0,87; Mo:Pb – 0,81; Co:Pb – 0,87. This makes it possible to predict the content of several HMs in the soils of the Transcarpathian region based on the results of determining one of them. In general, the content of HMs in the humus soil horizon (total content and content of mobile forms) is lower than the corresponding values of maximum permissible concentrations.  

Mobilities and leachabilities of heavy metals in sludge with humus soil

2011 ◽  
Vol 23 (2) ◽  
pp. 247-254 ◽  
Author(s):  
Rui Zhu ◽  
Min Wu ◽  
Jian Yang
Keyword(s):  
Heavy Metals ◽  
Humus Soil
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