Assessment of leaf photosynthetic performances and bioaccumulation of trace metals by lettuce leaves and strawberry fruits amended with sewage sludge: Which possible re-use in agriculture?

2022 ◽  
Vol 295 ◽  
pp. 110884
Author(s):  
Costanza Ceccanti ◽  
Giulia Lauria ◽  
Ermes Lo Piccolo ◽  
Lucia Guidi ◽  
Beatrice Pezzarossa ◽  
...  
Keyword(s):  
Trace Metals ◽  
Sewage Sludge ◽  
Photosynthetic Performances

Trace Metals in Soil, Vegetation, and Voles from Mine Land Treated with Sewage Sludge

1989 ◽  
Vol 18 (1) ◽  
pp. 115-120 ◽  
Author(s):  
T. M. Alberici ◽  
W. E. Sopper ◽  
G. L. Storm ◽  
R. H. Yahner
Keyword(s):  
Trace Metals ◽  
Sewage Sludge

scholarly journals Evaluation of the quality of drainage sludge in To Lich River basin and the proposal of suitable management solutions

2018 ◽  
Vol 12 (3) ◽  
pp. 113-122
Author(s):  
Tran Duc Ha ◽  
Tran Thuy Anh
Keyword(s):  
Land Use ◽  
Trace Metals ◽  
Sewage Sludge ◽  
Anthropogenic Activities ◽  
National Standards ◽  
High Concentration ◽  
Aquatic Life ◽  
Water Treatment Process ◽  
Dry Seasons ◽  
Cr Concentration

This study aims to examine the characteristics and to assess the hazardous level as well as the reusability of sewage sludge and river sediment from To Lich River (TLR) basin, which is the largest wastewater catchment in Hanoi. Sludge samples were collected from six manholes along Tran Binh Trong (TBT) and Thai Ha (TH) sewers in rainy and dry seasons. Sediment samples were collected from seven sites near principal wastewater and storm water discharging points along TLR upstream in dry season. Parameters, such as pH, humidity, total ash, zinc (Zn), copper (Cu), lead (Pb), and cadmium (Cd) in sewage sludge were examined. Trace metals in TLR sediment, e.g. arsenic (As), mercury (Hg), lead (Pb), zinc (Zn), chromium (Cr), and cadmium (Cd) were analyzed. The results of sludge and sediment analysis were then compared with national environmental regulations for hazards and aquatic life preservation, and land use purposes, including QCVN 43:2012/BTNMT, QCVN 50:2013/BTNMT, QCVN 03-MT: 2015/BTNMT. The majority of examined parameters of sewage sludge, except ash content, are higher in dry seasons than in rainy seasons. Regarding hazardous level, all the investigated heavy metals in sewage sludge in dry and rainy seasons, respectively, as followings: 644 and 598 mg.kg-1 Zn, 146.5 and 127.3 mg.kg-1 Cu, 71.2 and 69.5 mg.kg-1 Pb, and 1.51 and 1.46 mg.kg-1 Cd, are below the legislated thresholds, thus, can be considered as nontoxic. Reusability of sewage sludge, however, should be considered since Zn exceeded permissible values for all of land use purposes. The concentration of As (0.659 mg.kg-1), Hg (0.03 mg.kg-1), Pb (4.07 mg.kg-1), Zn (81.3 mg.kg-1), and Cd (0.078 mg.kg-1) meets national standards on hazardous waste, and sludge from water treatment process, as well as to protect aquatic life and to be reused in anthropogenic activities. However, Cr concentration (157 mg.kg-1) is above those legislated thresholds, thus, unsuitable to be reused as land or fertilizer. With high concentration of several trace metals and humidity, drainage sludge from TLR basins should be treated to improve its reusability. Article history: Received 20 March 2018, Revised 05 April 2018, Accepted 27 April 2018

Trace metal extractability in soils and uptake by bromegrass 20 years after sewage sludge application

2002 ◽  
Vol 82 (3) ◽  
pp. 323-333 ◽  
Author(s):  
M B McBride ◽  
L J Evans
Keyword(s):  
Trace Metals ◽  
Sewage Sludge ◽  
Trace Metal ◽  
Inductively Coupled Plasma ◽  
Organic Matter Content ◽  
Calcareous Soils ◽  
Matter Content ◽  
Plant Availability ◽  
Sludge Application

The long-term potential for sewage sludge amendments to alter forage trace metal concentrations was determined on bromegrass, which received no sludge application for 20 yr following annual application during 1973-1980 on a no-till randomized-plot experimental site. In addition, soils were analyzed for trace metals, both total and extractable (using hot 0.01 M CaCl2), by axial-view inductively coupled plasma spectrometry. For Cu, Ni, Zn and Cd, extractability from the soil (by CaCl2) as well as plant tissue concentrations were relatively low considering the high loadings of these particular metals, a fact attributable to the near-neutral pH and high organic matter content of these calcareous soils. However, total and extractable soil Mo remained elevated in the sewage-sludge-amended plots above the levels measured in the fertilized control plots some 20 yr after the last sewage sludge application. Mo bioaccumulated in the bromegrass more than the other trace metals investigated at this site. The Cu:Mo ratio in the forage, a measure of potential to induce Cu deficiency in grazing ruminants, was substantially depressed by most of the sewage sludge treatments. Comparison of the 2000 and 1980 bromegrass analyses suggests an increase in the long-term plant availability of Mo in soils amended with high-Fe and high-Al sludges. Conversely, there was a long-term decrease in Mo availability on the high-Ca sludge treatment, consistent with evidence that much of the Mo has been lost from the topsoil since sludge application. For Cu, Ni and Zn, plant availability appears to have decreased between 1980 and 2000, attributable in part to a calculated loss of substantial fractions of these metals from the topsoil. Bromegrass concentrations of Cu, Ni, Zn, Cd and Mo were strongly correlated to CaCl2-extractable and total metals in the soils, indicating the utility of 0.01 M CaCl2 in predicting plant availability. The chemical differences in the three sludge types applied at the site (high-Ca, high-Al, high-Fe) had little long-term impact on the extractability and phytoavailability of most trace metals remaining in the topsoil. Key words: Biosolids, molybdenum, copper, forage, cadmium, heavy metals

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