Partitioning of organic matter and heavy metals in a sandy soil: Effects of extracting solution, solid to liquid ratio and pH

Geoderma ◽  
2008 ◽  
Vol 146 (1-2) ◽  
pp. 66-74 ◽  
Author(s):  
Ellen P.M.J. Fest ◽  
E.J.M. Temminghoff ◽  
R.N.J. Comans ◽  
W.H. van Riemsdijk
Keyword(s):  
Heavy Metals ◽  
Organic Matter ◽  
Sandy Soil ◽  
Liquid Ratio ◽  
Soil Effects

scholarly journals The Impact of the Type of Soil Contaminated with Heavy Metals on the Risk of their Translocation to the Consumption Parts of Maize

2014 ◽  
Vol 25 (4) ◽  
pp. 29-33
Author(s):  
Ewa Stanisławska-Glubiak ◽  
Sylwia Gołda
Keyword(s):  
Heavy Metals ◽  
Organic Matter ◽  
Significant Role ◽  
Sandy Soil ◽  
Bioaccumulation Factors ◽  
Plant Parts ◽  
Aerial Parts ◽  
Maize Cultivation ◽  
The Impact ◽  
Maximum Limit

Abstract The purpose of the research was to examine the extent to which the type of soil co-contaminated with Cd, Pb and Zn affected the accumulation and distribution of these metals in maize; a crop that plays a significant role in feeding of animals and humans. Two 1-year microplot experiments were conducted using four types of soils. The soils were as follows: sandy soil with a low content of organic matter (S1), sandy soil of analogical granu-lometric composition, but with a higher content of organic mat-ter (S2), loess poor in organic matter (L1) and the same loess with its higher content (L2). The differences between the soils in terms of the availability of individual metals for maize and their transport from the roots to the aerial parts were evaluated on the basis of bioaccumulation factors (BF) and translocation indexes (TL). It was found that maize cultivation on the soil poorly pol-luted with Cd, Pb and Zn, regardless of its type, poses the dan-ger of translocation of these metals to the grains in the amounts exceeding the maximum limit in foods. However, the amount of metals accumulated in the grain, as well as in the cobs, do not exclude the use of these plant parts for feed.

Complexation with Dissolved Organic Matter and Solubility Control of Heavy Metals in a Sandy Soil

2002 ◽  
Vol 36 (22) ◽  
pp. 4804-4810 ◽  
Author(s):  
Liping Weng ◽  
Erwin J. M. Temminghoff ◽  
Stephen Lofts ◽  
Edward Tipping ◽  
Willem H. Van Riemsdijk
Keyword(s):  
Heavy Metals ◽  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Sandy Soil ◽  
Solubility Control

The impact of urban effluents on the coastal marine environment of Mediterranean islands

1995 ◽  
Vol 32 (9-10) ◽  
pp. 85-94 ◽  
Author(s):  
Michael O. Angelidis
Keyword(s):  
Heavy Metals ◽  
Organic Matter ◽  
Marine Environment ◽  
Suspended Particle ◽  
Pollution Source ◽  
Mediterranean Islands ◽  
Coastal Marine Environment ◽  
Coastal Marine ◽  
The Impact ◽  
The City

The impact of the urban effluents of Mytilene (Lesvos island, Greece) on the receiving coastal marine environment, was evaluated by studying the quality of the city effluents (BOD5, COD, SS, heavy metals) and the marine sediments (grain size, organic matter, heavy metals). It was found that the urban effluents of Mytilene contain high organic matter and suspended particle load because of septage discharge into the sewerage network. Furthermore, although the city does not host important industrial activity, its effluents contain appreciable metal load, which is mainly associated with the particulate phase. The city effluents are discharged into the coastal marine environment and their colloidal and particulate matter after flocculation settles to the bottom, where is incorporated into the sediments. Over the years, the accumulation of organic matter and metals into the harbour mud has created a non-point pollution source in the relatively non-polluted coastal marine environment of the island. Copper and Zn were the metals which presented the higher enrichment in the sediments of the inner harbour of Mytilene.

scholarly journals Fractionation of Heavy Metals in Multi-Contaminated Soil Treated with Biochar Using the Sequential Extraction Procedure

Biomolecules ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 448
Author(s):  
Mahrous Awad ◽  
Zhongzhen Liu ◽  
Milan Skalicky ◽  
Eldessoky S. Dessoky ◽  
Marian Brestic ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Organic Matter ◽  
Soil Organic Matter ◽  
Soil Ph ◽  
Contaminated Soil ◽  
Contaminated Soils ◽  
Extraction Procedure ◽  
Sequential Fractionation ◽  
Relationship Of ◽  
The Relationship

Heavy metals (HMs) toxicity represents a global problem depending on the soil environment’s geochemical forms. Biochar addition safely reduces HMs mobile forms, thus, reducing their toxicity to plants. While several studies have shown that biochar could significantly stabilize HMs in contaminated soils, the study of the relationship of soil properties to potential mechanisms still needs further clarification; hence the importance of assessing a naturally contaminated soil amended, in this case with Paulownia biochar (PB) and Bamboo biochar (BB) to fractionate Pb, Cd, Zn, and Cu using short sequential fractionation plans. The relationship of soil pH and organic matter and its effect on the redistribution of these metals were estimated. The results indicated that the acid-soluble metals decreased while the fraction bound to organic matter increased compared to untreated pots. The increase in the organic matter metal-bound was mostly at the expense of the decrease in the acid extractable and Fe/Mn bound ones. The highest application of PB increased the organically bound fraction of Pb, Cd, Zn, and Cu (62, 61, 34, and 61%, respectively), while the BB increased them (61, 49, 42, and 22%, respectively) over the control. Meanwhile, Fe/Mn oxides bound represents the large portion associated with zinc and copper. Concerning soil organic matter (SOM) and soil pH, as potential tools to reduce the risk of the target metals, a significant positive correlation was observed with acid-soluble extractable metal, while a negative correlation was obtained with organic matter-bound metal. The principal component analysis (PCA) shows that the total variance represents 89.7% for the TCPL-extractable and HMs forms and their relation to pH and SOM, which confirms the positive effect of the pH and SOM under PB and BB treatments on reducing the risk of the studied metals. The mobility and bioavailability of these metals and their geochemical forms widely varied according to pH, soil organic matter, biochar types, and application rates. As an environmentally friendly and economical material, biochar emphasizes its importance as a tool that makes the soil more suitable for safe cultivation in the short term and its long-term sustainability. This study proves that it reduces the mobility of HMs, their environmental risks and contributes to food safety. It also confirms that performing more controlled experiments, such as a pot, is a disciplined and effective way to assess the suitability of different types of biochar as soil modifications to restore HMs contaminated soil via controlling the mobilization of these minerals.

scholarly journals Heavy-metal pollution alters dissolved organic matter released by bloom-forming Microcystis aeruginosa

RSC Advances ◽  
2017 ◽  
Vol 7 (30) ◽  
pp. 18421-18427 ◽  
Author(s):  
Haiming Wu ◽  
Li Lin ◽  
Guangzhu Shen ◽  
Ming Li
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Microcystis Aeruginosa ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Aquatic Ecosystems ◽  
Eutrophic Lakes

The risk of heavy metals to aquatic ecosystems was paid much attention in recent years, however, the knowledge on effects of heavy metals on dissolved organic matter (DOM) released byMicrocystiswas quite poor, especially in eutrophic lakes.

Sorption of benzene and trichloroethylene (TCE) on a desert soil: Effects of moisture and organic matter

Chemosphere ◽  
1996 ◽  
Vol 33 (5) ◽  
pp. 961-980 ◽  
Author(s):  
Spencer M. Steinberg ◽  
John S. Schmeltzer ◽  
David K. Kreamer
Keyword(s):  
Organic Matter ◽  
Desert Soil ◽  
Soil Effects

Persistence, Distribution, and Emission of Telone C35 Injected into a Florida Sandy Soil as Affected by Moisture, Organic Matter, and Plastic Film Cover

2004 ◽  
Vol 39 (4) ◽  
pp. 505-516 ◽  
Author(s):  
J. E. Thomas ◽  
L.-T. Ou ◽  
L. H. Allen ◽  
L. A. McCormack ◽  
J. C. Vu ◽  
...  
Keyword(s):  
Organic Matter ◽  
Sandy Soil ◽  
Plastic Film
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