Use of biosolids for sod production: Impact on the import/export of nutrients, heavy metals, and soil mineral matter

2020 ◽  
Vol 112 (5) ◽  
pp. 3371-3382 ◽  
Author(s):  
Shane Griffith ◽  
Nicholas Bero ◽  
John Stier ◽  
Glen Obear ◽  
Sabrina J. Ruis ◽  
...  
2009 ◽  
Vol 1 (1) ◽  
pp. 99-108 ◽  
Author(s):  
A. K. Chopra ◽  
Chakresh Pathak ◽  
G. Prasad

Soil is a complex structure and contains mainly five major components i.e. mineral matter, water, air, organic matter and living organisms. The quantity of these components in the soil does not remain the same but varies with the locality. Soil possesses not only a nucleus position for existence of living being but also ensures their future existence. Therefore, it is essential to make an adequate land management to maintain the quality of soil in both rural and urban soil. The presence of different kinds of heavy metals such as Cd, Cu, Mn, Bi and Zn etc. in trace or in minimum level is a natural phenomenon but their enhanced level is an indicator of the degree of pollution load in that specific area. The precise knowledge of these kinds of heavy metals, their forms and their dependence on soil provides a genuine base for soil management. The heavy metals have potent cumulative properties and toxicity due to which they have a potential hazardous effect not only on crop plants but also on human health. The metal contaminants can be reduced by immobilization of contaminants using macrophytes and also by using genetically engineered microorganisms.


2019 ◽  
Vol 9 (4) ◽  
pp. 317-325
Author(s):  
Ikram Chaer ◽  
Asmae El Cadi ◽  
Jamal Brigui ◽  
Khadija Ziat ◽  
Mohamed Khaddor

In recent decades, landfill sites have been a potential source of contamination, which can hurt the environment due to the accumulation of heavy metals and processed organic products. In the Tangier landfill, the different types of wastes are missing any prior treatment or any soil of protection. This behavior constitutes a risk factor of contamination for the soil and groundwater. Between the waste and soil, many physicochemical and biological reactions occur. The objective of this work effort is to derive a global and in-depth characterization of the organic and mineral matter of the soil samples from the Tangier landfill. The study of organic matter (OM) in soils helps to understand the evolution of soil contamination. Eight samples of soil have been studied using a range of chemical and physical analytical methods. FT-IR spectroscopy and X-ray diffraction analyses have used to investigate the nature of organic matter. The analysis of heavy metals in the soil showed that there is a significant presence of Pb, Cd, As, Cr and Zn quantities which are mainly due to industrial waste.


2014 ◽  
Vol 68 (4) ◽  
pp. 501-510 ◽  
Author(s):  
Vlado Licina ◽  
Slavica Jelacic ◽  
Damir Beatovic ◽  
Svetlana Antic-Mladenovic

This experiment investigated mineral composition of 13 basil genotypes (Ocimum spp.) in order to find varieties supporting human dietary intake of essential minerals and to evaluate basil genotypes which could serve for herbal production as raw material in pharmaceutical or food processing industry. In addition, this study tested a potential risk of the accumulation of heavy metals during the commercial production of basil on agricultural soil. Mineral composition of basil genotypes was found to be in association with its genetic potential, where some of them can be used in human nutrition as an additional source of several minerals, particularly micronutrients (Fe, Mn, Zn), which generally improve human immune system. Iron-rich basil genotypes were identified in this experiment, like Compact (3576.0 mg/kg), with Lattuga (1585.6 mg/kg) and Blue spice (1167.9 mg/kg) genotypes, containing more than 1000 mg/kg of Fe in herbal part on dry basil (d.m.). This attract a special attention as a source of iron, especially for humans with low Fe intake, and consequently, for people with low level of hemoglobin. Basil grown on agricultural soil was tested on the accumulation of heavy metals (Cu, Co, Cu, Ni, Cr, Pb), which were not found to be excessive in herbal parts of the plants. Cluster analysis (CA) distinguished Ocmium spp. genotypes in two separate groups. Despite of significant differences among the genotypes, content of Fe, Mn, Co, Cr, Ni and Pb made a clear distinction between the clusters.


2020 ◽  
Author(s):  
Galina Kapanen ◽  
Jaanus Terasmaa

<p>In Estonia, natural remedies were commonly used during the first half of the 19th century. Thanks to its specific geological and geomorphological characteristics, Estonia has several significant deposits of lacustrine and marine curative (or therapeutic) mud, which has public health and commercial benefits. Many Estonian spas have traditionally incorporated a combination of natural remedies with a range of physical therapies, including gentle exercise, massage and heat and water therapies. Yet, the mud research in Estonia has been stagnating since the 1990s, and therefore one of the main limiting factor for the redevelopment of the public and commercial use is a lack of up-to-date scientific understanding about the sediment composition and deposit characteristics.</p><p>There is a long-term tradition in using fine-grained sediments (mud) for cosmetic and medical purposes but more precise information about the characteristics of such sediments is lacking. Since there are no specific standards regarding the bio-geo-chemical composition of curative mud, only the different geochemical and bioactive compound groups could be identified.</p><p>We reviewed the regional history of curative mud and the existing scientific rationale for the public and commercial applications of mud for healing purposes. We mapped spatial distribution organic and mineral matter, heavy metals in the surface sediments Estonian deposits of curative mud. Polycyclic aromatic hydrocarbons (PAHs) were controlled for the Haapsalu curative mud. Importantly, the geochemical characterisation is used to provide insights into all of the mud deposits and the broader ecosystem services of muds. The presence of heavy metals in mud is not always dangerous because many factors can affect their toxicity, including pH, and the oxygen, mineral and organic content. Muds can be used in assessing environmental quality, since the pollutants contained in them reflect the conditions of the water-body they were deposited in. The mechanisms of action of the curative mud are not fully elucidated; the net benefit is probably the result of a combination of mechanical, thermal and chemical effects. Additional studies are necessary to clarify the mechanisms of action of balneology.</p>


2014 ◽  
Vol 40 (1) ◽  
pp. 115-127 ◽  
Author(s):  
Elwira Zajusz-Zubek ◽  
Jan Konieczyński

Abstract Samples of steam coal used in heat and power plants as well as densimetric fractions obtained on a laboratory scale by dense organic liquid separation have been examined. The contents of ash, mercury, chromium, cadmium, copper, nickel and lead have been determined in coal, in the light and medium fraction as well as in the refuse. The degree of removal of mineral matter and the examined heavy metals as well as the coal combustible parts yield have been determined. Examination of 5 coals revealed that it is possible to remove 41% of mercury and more than 35% of other heavy metals bound to mineral matter in coal.


2020 ◽  
Vol 21 (3) ◽  
Author(s):  
Azra Bakrač ◽  
Subha Džafić ◽  
Radoslav Dekić ◽  
Irma Ičanović

Heavy metals belong to a group of substances, which, after reaching a natural habitat, can manifest various negative effects. This paper analyses heavy metals (Cu, Cd, and Pb) in the Una river and fish samples, whereby individuals of grayling (Thymallus thymallus) were used for analysis. The samples were taken at three locations at the Una river: Ripač, Hatinac, and Grmuša. Alongside with the examination of the content of heavy metals, quality of water was tracked, including the following parameters: temperature, pH, electrical conductivity, dissolved oxygen, suspended matter, BPK5, KPK – Cr, total nitrogen – N, total phosphorus P, sulphates, chlorides, nitrites – NO2, nitrates – NO3, fluoride, and heavy metals (Cu, Cd, and Pb). Besides the content of heavy metals, proteins, fats, water, carbohydrates, and mineral matter were found in the grayling fillets. Amount of heavy metals (Pb, Cu, and Cd) were under maximum allowed concentration (MAC).


2020 ◽  
Vol 100 (3) ◽  
pp. 289-301 ◽  
Author(s):  
W.D. Reynolds ◽  
R.E. Nurse ◽  
L.A. Phillips ◽  
C.F. Drury ◽  
X.M. Yang ◽  
...  

Although compost is widely used as an organic soil amendment or conditioner, little is known of how it affects the characteristics or interactions among soil constituents. To address this, mixture theory was used to describe the mass–volume–density–porosity attributes and interactions among bulk soil, the mineral constituent, and the organic matter constituent of a sandy loam soil in a no-till corn field that had received one-time additions of yard waste compost at rates of 0 (control), 64, 154, and 380 dry t ha−1. Bulk density (BD, 0–10 cm depth) decreased consistently and near-linearly with increasing soil organic matter (SOM) mass fraction (FOM) for all six growing seasons (2012–2017) after compost addition. Fitting mixture theory expressions to BD vs. FOM data and to soil particle density vs. FOM data for 2013–2017 yielded constant mineral and SOM self-packing densities of DM = 1.673 Mg m−3 and DO = 0.335 Mg m−3, respectively, and constant mineral and SOM particle densities of ρM = 2.760 Mg m−3 and ρO = 1.409 Mg m−3, respectively. On a self-packing basis, soil mineral and SOM domain porosities were constants at nM = 0.39 and nO = 0.76, respectively. On a bulk soil volume basis, soil mineral and SOM porosities and volume ratios were linear functions of FOM. The porosity and volume characteristics of the SOM domain differed substantially from those of bulk soil and the mineral domain, and may therefore control the agri-environmental performance of soil, given that organic matter influences soil functioning more than mineral matter.


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