Bioavailability and plant accumulation of heavy metals and phosphorus in agricultural soils amended by long-term application of sewage sludge

Chemosphere ◽  
2007 ◽  
Vol 66 (8) ◽  
pp. 1458-1467 ◽  
Author(s):  
P.S. Kidd ◽  
M.J. Domínguez-Rodríguez ◽  
J. Díez ◽  
C. Monterroso
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Agricultural Soils ◽  
Plant Accumulation

scholarly journals Accumulation and bioavailability of heavy metals in a soil-wheat/maize system with long-term sewage sludge amendments

2018 ◽  
Vol 17 (8) ◽  
pp. 1861-1870 ◽  
Author(s):  
Guo-hang YANG ◽  
Guang-yun ZHU ◽  
He-lian LI ◽  
Xue-mei HAN ◽  
Ju-mei LI ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Soil Wheat

scholarly journals Effects of Medium-Term Amendment with Sewage Sludge on Soil Organic Fertility and on Heavy Metal Bioavailability

2017 ◽  
Author(s):  
Gabriella Rossi ◽  
Claudio Beni
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Physical And Mechanical Properties ◽  
Industrial Wastes ◽  
Organic Carbon Content ◽  
Medium Term ◽  
Italian Law ◽  
Agricultural Use ◽  
Properties Of Soil

The biomass fraction of processed municipal and industrial wastes added to soil can maintain, and in some case improve, the soil’s organic fertility. One of the main constraints in the agricultural use of the sewage sludge is its content of heavy metals. In the long term, soil administration of sewage sludge in agriculture could result in a risk of environmental impact. The aim of this research was to evaluate the effects of medium-term fertilization with sewage sludge diversely processed on the soil’s organic carbon content and humification – mineralization soil’s processes and on the physical and mechanical properties of soil. Furthermore, the heavy metals accumulation in soil, in their total and available form, has been investigated. After eight years of administration to soil, the use of sewage sludge as an agricultural soil amendment has contributed to maintaining the soil’s organic fertility. An increase in concentrations of total Ni and Zn was detected in soil. For bioavailable form (DTPA-extractable) this trend was evidenced for all heavy metals analysed. However, the concentrations of total and available heavy metals in the soil did not exceed the legal threshold established by Italian law for unpolluted soils.

Sewage Sludge in China: Challenges Toward a Sustainable Future

2007 ◽  
Vol 2 (4) ◽  
Author(s):  
P. J. He ◽  
F. Lü ◽  
H. Zhang ◽  
L. M. Shao ◽  
D. J. Lee
Keyword(s):  
Economic Growth ◽  
Heavy Metals ◽  
Sewage Sludge ◽  
Municipal Sewage ◽  
Production Distribution ◽  
The Status ◽  
Heat Value ◽  
Treatment Technologies ◽  
Trace Pollutants

Sewage sludge is of increasing concern in China, due to extended sewerage control and advanced wastewater treatments resulting from urbanization and economic growth. Based on the evolution of municipal sewage generation and treatment technologies in the last decade, as well as the long-term national and local plans in China, the paper elucidates production, distribution and characteristics (organics, nutrients, heat value, heavy metals, trace pollutants, pathogens) of sludge in some typical districts of China. The status and challenges of sludge management are discussed.

scholarly journals Probability of Heavy Metals Mobility from Dumped Sediments in a Quarry

2021 ◽  
Author(s):  
Karina T. García-Rangel ◽  
Francisco Gavi-Reyes ◽  
Rogelio Carrillo-González ◽  
Mario Martínez-Menes
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Adsorption Capacity ◽  
Mexico City ◽  
Agricultural Soils ◽  
Infiltration Rate ◽  
Water Infiltration ◽  
Water Runoff ◽  
Runoff Water ◽  
Safe Limits

Dregs from the former Texcoco Lake were used to build the new international Mexico City airport and pumped in a quarry. The dredged sediments could have heavy metals (HMs) capable of polluting water bodies. The study’s objective was to evaluate the content of Cu, Zn, Cd, Ni, and Pb of the sediments deposited in the quarry, their transfer to the runoff water and the adsorption of Cu, Zn, Ni, and Pb in the subsoil. Other variables measured were water infiltration rate, HM in sediments, water runoff, and the HM adsorption in the subsoil. The infiltration rate in sediments is low (≤ 10-7 cm/h). HMs in sediments are within the maximum permissible limits by Mexican regulations, for sewage sludge. The HMs in the runoff from the sediments are in the range of the Mexican regulations for the discharge into rivers and for irrigation purposes of agricultural soils. They are also within safe limits for irrigation use considered by FAO and EPA. The materials adsorption capacity of Pb (1250 mg kg-1), Zn (588 mg kg-1), and Cu (1250 mg kg-1) is higher than the concentration of metals in the runoff water, so the movement of HMs down into the subsoil is unlikely.  

scholarly journals Modelling of long term Zn, Cu, Cd, Pb dynamics from soils fertilized with organic amendments

2020 ◽  
Author(s):  
Claudia Cagnarini ◽  
Stephen Lofts ◽  
Luigi Paolo D'Acqui ◽  
Jochen Mayer ◽  
Roman Grüter ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Agricultural Soils ◽  
Farmyard Manure ◽  
Organic Amendments ◽  
Dynamic Simulations ◽  
Application Rates ◽  
Input Flux ◽  
Lateral Mixing ◽  
Definition Of

Abstract. Soil contamination by trace elements (TEs) is a major concern for sustainable land management. One potential source of excessive inputs of TEs into agricultural soils are organic amendments. Here, we use dynamic simulations carried out with the IDMM-ag model to describe observed trends of topsoil Zn, Cu, Pb and Cd concentrations in a long-term crop trial in Switzerland, where soils plots have been treated with differing organic amendments, particularly farmyard manure, sewage sludge and compost. IDMM-ag requires the definition of a parsimonious set of boundary conditions. The model adequately reproduced the metal EDTA-extractable concentrations in ZOFE when site-specific soil lateral mixing, due to mechanically ploughing of small plots, was introduced. Calibration of an additional metal input flux was necessary to fit the measured data, indicating that knowledge gaps in quantifying historical metal inputs can affect field-scale simulations even in a well-characterized field. Projections of soil metal content in the long-term showed that, under stable organic amendment application rates, Zn and Cu labile concentrations might pose toxicological hazard for the soil ecosystem, particularly in the sewage sludge-amended plots. The sewage sludge topsoil was characterized by some variability in the organic matter composition, potentially due to the applied sewage sludge quality, which might affect the metal lability: this effect should be accounted for in models. This study takes a step forward in assessing potential and limitations of the IDMM-ag model to predict TEs long-term dynamics in agricultural fields, paving the way to quantitative applications of TEs modelling at field and larger scales.

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