DEGRADATION RATE OF LIMED SEWAGE SLUDGE IN AN AGRICULTURAL SOIL

2019 ◽  
Vol 18 (5) ◽  
pp. 1049-1055
Author(s):  
Antonio Matos ◽  
Isabela Diniz ◽  
Mateus Matos ◽  
Alisson Borges ◽  
Adriana Wilken
Keyword(s):  
Sewage Sludge ◽  
Agricultural Soil ◽  
Degradation Rate

scholarly journals Potential Sources of Anthropogenic Copper Inputs to European Agricultural Soils

2018 ◽  
Vol 10 (7) ◽  
pp. 2380 ◽  
Author(s):  
Panos Panagos ◽  
Cristiano Ballabio ◽  
Emanuele Lugato ◽  
Arwyn Jones ◽  
Pasquale Borrelli ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Agricultural Soil ◽  
Agricultural Soils ◽  
Anthropogenic Activities ◽  
Anthropogenic Sources ◽  
Copper Accumulation ◽  
The European Union ◽  
Liquid Manure ◽  
Administrative Units ◽  
The Eu

In the European Union (EU), copper concentration in agricultural soil stems from anthropogenic activities and natural sources (soil and geology). This manuscript reports a statistical comparison of copper concentrations at different levels of administrative units, with a focus on agricultural areas. Anthropogenic sources of diffuse copper contamination include fungicidal treatments, liquid manure (mainly from pigs), sewage sludge, atmospheric deposition, mining activities, local industrial contamination and particles from car brakes. Sales of fungicides in the EU are around 158,000 tonnes annually, a large proportion of which are copper based and used extensively in vineyards and orchards. Around 10 million tonnes of sewage sludge is treated annually in the EU, and 40% of this (which has a high copper content) is used as fertilizer in agriculture. In the EU, 150 million pigs consume more than 6.2 million tonnes of copper through additives in their feed, and most of their liquid manure ends up in agricultural soil. These three sources (sales of fungicides, sewage sludge and copper consumption for pigs feed) depend much on local traditional farming practices. Recent research towards replacing copper spraying in vineyards and policy developments on applying sewage and controlling the feed given to pigs are expected to reduce copper accumulation in agricultural soil.

scholarly journals Adsorption–desorption behavior of carbendazim by sewage sludge-derived biochar and its possible mechanism

RSC Advances ◽  
2019 ◽  
Vol 9 (60) ◽  
pp. 35209-35216 ◽  
Author(s):  
Tengda Ding ◽  
Tuo Huang ◽  
Zhenhua Wu ◽  
Wen Li ◽  
Kexin Guo ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Environmental Remediation ◽  
Agricultural Soil ◽  
Adsorption Desorption

Biochar application in agricultural soil for environmental remediation has received increasing attention, however, few studies are focused on sewage sludge based biochar.

scholarly journals Zinc, copper and manganese availability in soils treated with alkaline sewage sludge from Paraná state (Brazil)

2017 ◽  
Vol 41 (1) ◽  
pp. 81-93 ◽  
Author(s):  
Maristela Dalpisol ◽  
Beatriz Monte Serrat ◽  
Antonio Carlos Vargas Motta ◽  
Giovana Clarice Poggere ◽  
Simone Bittencourt ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Plant Growth ◽  
Agricultural Soil ◽  
Sewage Treatment ◽  
Clayey Soils ◽  
Sewage Treatment Plants ◽  
Stabilization Process ◽  
Manganese Availability ◽  
Zn Availability ◽  
Medium Texture

ABSTRACT In Paraná, most of the sludge generated in sewage treatment plants is subjected to the prolonged alkaline stabilization process. Although it is known that the alkaline sewage sludge contains micronutrients such as Zn, Cu and Mn, little is known about the availability of these elements in soils treated with this type of sewage sludge. Thus, the objective of the study was to evaluate the influence of alkaline sewage sludge from Paraná on Zn, Cu and Mn availability in soils. Twenty sewage treatment plants were selected throughout Paraná, where alkaline sewage sludge and the most representative agricultural soil of the each region were collected. Each soil was incubated for 60 days with alkaline sewage sludge rates (0, 10, 20, 40, and 80 Mg ha-1) from their region. Subsequently, Zn, Cu and Mn availability was determined using the Mehlich-1 extractant. The alkaline sewage sludge increased Zn availability and decreased Mn availability in most soils. Cu showed intermediate results, with increased availability, primarily in medium texture soils and decrease in most of the clayey soils. In soils with pH close to ideal for the plant growth, the alkaline sewage sludge rate should be carefully calculated so that there is no excessive increase in the pH and Zn, Cu and Mn imbalance.

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