Sewage sludge biochars management-Ecotoxicity, mobility of heavy metals, and soil microbial biomass

2018 ◽  
Vol 37 (4) ◽  
pp. 1197-1207 ◽  
Author(s):  
Monika Mierzwa-Hersztek ◽  
Krzysztof Gondek ◽  
Agnieszka Klimkowicz-Pawlas ◽  
Agnieszka Baran ◽  
Tomasz Bajda
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Microbial Biomass ◽  
Soil Microbial Biomass ◽  
Soil Microbial

Bioavailability and effects of heavy metals on soil microbial biomass survival during laboratory incubation

1995 ◽  
Vol 19 (2-3) ◽  
pp. 103-108 ◽  
Author(s):  
L. Leita ◽  
M. De Nobili ◽  
G. Muhlbachova ◽  
C. Mondini ◽  
L. Marchiol ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Microbial Biomass ◽  
Soil Microbial Biomass ◽  
Soil Microbial ◽  
Laboratory Incubation

scholarly journals Microbiological and biochemical properties of an agricultural Mexican soil amended with sewage sludge

2012 ◽  
Vol 36 (5) ◽  
pp. 1646-1655 ◽  
Author(s):  
Renato Armenta ◽  
Rocio Vaca ◽  
Jorge Lugo ◽  
Pedro del Aguila
Keyword(s):  
Alkaline Phosphatase ◽  
Organic Matter ◽  
Sewage Sludge ◽  
Microbial Biomass ◽  
Soil Microbial Biomass ◽  
Biochemical Properties ◽  
Basal Respiration ◽  
Soil Microbial ◽  
Acid And Alkaline Phosphatase

The application of sewage sludge is a concern because it may affect the quality of organic matter and microbiological and biochemical soil properties. The effects of surface application of sewage sludge to an agricultural soil (at 18 and 36 t ha-1 dry basis) were assessed in one maize (Zea mays L.) growing season. The study evaluated microbial biomass, basal respiration and selected enzymatic activities (catalase, urease, acid and alkaline phosphatase, and β-glucosidase) 230 days after sewage sludge application and infrared spectroscopy was used to assess the quality of dissolved organic matter and humic acids. Sewage sludge applications increased the band intensity assigned to polysaccharides, carboxylic acids, amides and lignin groups in the soil. The organic matter from the sewage sludge had a significant influence on the soil microbial biomass; nevertheless, at the end of the experiment the equilibrium of the soil microbial biomass (defined as microbial metabolic quotient, qCO2) was recovered. Soil urease, acid and alkaline phosphatase activity were strongly influenced by sewage sludge applications.

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