Influence of Long-Term Soil Application of Sewage Sludge Rich in Phosphorus on Heavy Metals Bioavailability to Plants

2018 ◽  
pp. 286-309
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Soil Application ◽  
Heavy Metals Bioavailability

scholarly journals Bioavailability of heavy metals in soils amended with sewage sludge

2002 ◽  
Vol 82 (4) ◽  
pp. 433-438 ◽  
Author(s):  
M T Morera ◽  
J. Echeverría ◽  
J. Garrido
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Agricultural Land ◽  
Organic Matter Content ◽  
Dry Weight ◽  
Matter Content ◽  
Alkaline Soils ◽  
Toxic Heavy Metals ◽  
Heavy Metals Bioavailability ◽  
Heavy Metals In Soils

The recycling of sewage sludge to agricultural land results in the slow accumulation of potentially toxic heavy metals in soils. A greenhouse experiment was conducted to determine the bioavailability of Cu, Ni, Pb and Zn applied to soils in urban anaerobically stabilized sewage sludge. The soils were Lithic Haplumbrept (Lh), Calcixerollic Xerochrept (Cx1 and Cx2) and Paralithic Xerorthent (Px). Sunflower plants (Helianthus annuus L) were grown in the soils following amendment with the sludge. The addition of sewage sludge markedly increased the average dry weight of the plants in the soils that had lower yields without sludge addition (Lh, Cx2, and Px). The acid pH of the Lh soil favoured the bioavailability of Zn from sewage sludge. The bioavailability of Cu was greater in the alkaline soils than in the acidic soil (Lh), which can be attributed to the high organic matter content of the Lh soil which complexes Cu and impairs its uptake by the plants. The concentration of metals in the plants increased with the sewage sludge dose. The effect of the soil type on the metal concentration in plants was greater that the effect of the dose. Key words: Soils, sewage sludge, heavy metals, bioavailability, sunflower

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 Characterization of Sewage Sludge for Quality Assessment and Its Safe Utilization in Agriculture

2021 ◽  
pp. 28-35
Author(s):  
Surendra Singh Jatav ◽  
Satish Kumar Singh ◽  
Abhik Patra ◽  
Hanuman Singh Jatav ◽  
Kiran Kumar Mohapatra ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Plant Growth ◽  
Environmental Concern ◽  
Biochemical Properties ◽  
Agricultural Field ◽  
Soil Environment ◽  
Toxic Heavy Metals ◽  
Soil Application ◽  
Physical Chemical

The current investigation was undertaken to explore the physico-biochemical properties of sewage sludge (SS) and its feasible application in agricultural field as an organic manure as source of nutrients with to solve the environmental concern. Sewage sludge samples were collected from sewage treatment plants (STP), Bhagwanpur, Varanasi, Uttar Pradesh, India and passed through a 2 mm sieve for further analysis of different physical, chemical and biological parameters. The treated sewage sludge consists of both major and micro nutrients along with a good amount of organic matter. Application of this sewage sludge has the ability to enhance the physical, chemical and biological properties of soil which is beneficial for plant growth and development sustainable soil environment. However, it also contains some amount of toxic heavy metals and organic pollutants that can adversely affect soil environment depending on the origin source of sewage sludge, and treatment process of sewage sludge. Furthermore, the toxic elements go through the food chain due to its uptake and accumulation by crops posing a possible threat to human health. Sewage sludge application in soil offers essential nutrients particularly for plant growth, maintains the organic carbon in soil and decreases environmental concern with economic factors that restrict landfill or incineration disposal of sewage sludge. However, a careful assessment of the characteristics of sewage sludge is required prior to its soil application to improve the soil health without causing environmental hazard. The SS analyzed in the present study had heavy metals content but was within permissible limits as resulted its suitable for soil application as source of nutrients.

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