scholarly journals Soil Quality and Heavy Metal Concentrations in Agricultural Lands around Dyeing, Glass and Textile Industries in Tangail District of Bangladesh

2018 ◽  
Vol 10 (2) ◽  
pp. 109-116 ◽  
Author(s):  
TR Tusher ◽  
AS Piash ◽  
MA Latif ◽  
MH Kabir ◽  
MM Rana
Keyword(s):  
Heavy Metal ◽  
Soil Quality ◽  
Textile Industry ◽  
Chemical Properties ◽  
Available P ◽  
Agricultural Lands ◽  
Metal Concentrations ◽  
Total N ◽  
Heavy Metal Concentrations ◽  
Textile Industries

The study was conducted to investigate the soil quality including heavy metal concentrations in agricultural lands around dyeing, glass and textile industries at Tangail district of Bangladesh. A total of nine samples, three samples from each industrial site, were collected at a depth of 0-15 cm with an interval of 10 m from each point of the agricultural lands adjacent to selected industries for analyzing the soil chemical properties such as pH, OM, total N, available P and S including heavy metals (Pb, Cd, Ni, Cu and Cr) concentrations. The study found soil pH of 6.4 and 6.1 around textile and glass industry, respectively, while comparatively lower pH (4.4) was observed around dyeing industry. Comparatively higher levels of OM, total N, available P and S were found in soil around dyeing industry, whereas lower levels of OM and available S were observed around textile industry. The Cu, Pb and Cr were the dominant heavy metal around dyeing, glass and textile industry, respectivelyJ. Environ. Sci. & Natural Resources, 10(2): 109-116 2017

scholarly journals Microorganisms in soils with elevated heavy metal concentrations in southern Serbia

2018 ◽  
Vol 70 (4) ◽  
pp. 707-716
Author(s):  
Olivera Stajkovic-Srbinovic ◽  
Aneta Buntic ◽  
Natasa Rasulic ◽  
Djordje Kuzmanovic ◽  
Zoran Dinic ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Soil Respiration ◽  
Chemical Properties ◽  
Stepwise Multiple Regression ◽  
Metal Concentrations ◽  
Total N ◽  
Heavy Metal Concentrations ◽  
Microbiological Characteristics ◽  
Number Of Microorganisms

Soil chemical properties and total heavy metal concentrations (As, Cd, Cr, Cu, Ni, Pb, Zn, Fe and Mn) and their relationships with some soil microbiological characteristics (such as soil respiration and numbers of specific groups of microorganisms) were evaluated in agricultural soils in southern Serbia. In 42% of samples, slightly elevated concentrations of As, Ni and/or Pb were detected, with the highest values of 43.4, 64.4 and 184.1 mg/kg, respectively. No significant differences were observed in soil microbiological characteristics between soil samples with elevated heavy metals and heavy metals below the maximum allowed concentrations (MAC). There was no negative correlation between any of the heavy metals and any microbiological characteristics, except the total number of fungi and the concentration of Ni (r=-394). Positive correlations between most of the heavy metals and the number of Azotobacter were obtained. Correlation analysis and stepwise multiple regression analyses indicated that the chemical properties of the soil are the factors that affected the number of microorganisms the most. The content of CaCO3 significantly contributed to variations in soil respiration (39%), the total number of microorganisms was affected the most by humus (53%), oligonitrophiles by the total N content (49%), while the numbers of actinomycetes and fungi were affected by the pH (48% and 58% of the variation).

scholarly journals Evaluation of Physical and Chemical Properties of Poultry Sludge and its Suitability for Reuse in Agricultural and Non-Agricultural Applications

2021 ◽  
Vol 4 (3) ◽  
pp. 86-95
Author(s):  
Fawzi Irshaid
Keyword(s):  
Heavy Metal ◽  
Waste Product ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Metal Concentrations ◽  
Heavy Metal Concentrations ◽  
Wide Range ◽  
Agricultural Applications ◽  
Physical And Chemical ◽  
And Chemical Properties

Disposal of poultry sludge is one of the great challenges facing cities because of very strict requirements for landfilling and the scarcity of space for landfills. The present study was therefore aimed at evaluating the physical and chemical properties of poultry sludge and its suitability for reuse in agricultural and non-agricultural applications. Three samples were collected from sludge at the wastewater treatment plant of Al-Thuraya slaughterhouse in Al-Mafraq District, Jordan. The physical and biochemical properties of these samples were analyzed. Also, elemental composition and heat value were determined. The results indicated that poultry sludge had a slightly alkaline pH and a total moisture content of 20%, as well as an average total solid of 80%. The dry solid sludge had a volatile solid content of 94.9% and 5.1% of ash. Also, dry sludge had a high protein content (62 %) followed by carbohydrate (20%) and fiber (17%), with fat being around 1%. The major elements in the sludge were carbon (65.5%) followed by nitrogen (16%), phosphorous (5 %) and sulfur (2%). Heavy metal concentrations in dry sludge ranged from 0.01 to 2 mg/kg. These heavy metal concentrations were well below the safe limits recommended by legislators for sludge used as a fertilizer. The findings from this study revealed that dry poultry sludge offers a wide range of potential uses as fertilizer, animal feed and a source of energy, and it should be considered as a potentially valuable and sustainable resource rather than a waste product.

Heavy metal concentrations in roadside soils of Lithuania's highways

Geologija ◽  
2008 ◽  
Vol 50 (4) ◽  
pp. 237-245 ◽  
Author(s):  
Audronė Jankaitė ◽  
Pranas Baltrėnas ◽  
Agnė Kazlauskienė
Keyword(s):  
Heavy Metal ◽  
Roadside Soils ◽  
Metal Concentrations ◽  
Heavy Metal Concentrations
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