Effect of an artificial soil mix from coal fly ash and sewage sludge on soil microbial activity

1996 ◽  
Vol 23 (4) ◽  
pp. 420-424 ◽  
Author(s):  
J. W. C. Wong ◽  
K. M. Lai
Keyword(s):  
Fly Ash ◽  
Sewage Sludge ◽  
Microbial Activity ◽  
Coal Fly Ash ◽  
Soil Microbial Activity ◽  
Artificial Soil ◽  
Soil Microbial ◽  
Soil Mix

scholarly journals Industrial and urban organic wastes increase soil microbial activity and biomass

2012 ◽  
Vol 36 (5) ◽  
pp. 1629-1636 ◽  
Author(s):  
Cácio Luiz Boechat ◽  
Jorge Antonio Gonzaga Santos ◽  
Adriana Maria de Aguiar Accioly ◽  
Marcela Rebouças Bomfim ◽  
Adailton Conceição dos Santos
Keyword(s):  
Sewage Sludge ◽  
Microbial Activity ◽  
Pulp Mill ◽  
Soil Microbial Activity ◽  
Organic Wastes ◽  
Metabolic Quotient ◽  
Municipal Sewage Sludge ◽  
Soil Microbial ◽  
Pulp Mill Sludge ◽  
The Impact

Microbial processes have been used as indicators of soil quality, due to the high sensitivity to small changes in management to evaluate, e.g., the impact of applying organic residues to the soil. In an experiment in a completely randomized factorial design 6 x 13 + 4, (pot without soil and residue or absolute control) the effect of following organic wastes was evaluated: pulp mill sludge, petrochemical complex sludge, municipal sewage sludge, dairy factory sewage sludge, waste from pulp industry and control (soil without organic waste) after 2, 4, 6, 12, 14, 20, 28, 36, 44, 60, 74, 86, and 98 days of incubation on some soil microbial properties, with four replications. The soil microbial activity was highly sensitive to the carbon/nitrogen ratio of the organic wastes. The amount of mineralized carbon was proportional to the quantity of soil-applied carbon. The average carbon dioxide emanating from the soil with pulp mill sludge, corresponding to soil basal respiration, was 0.141 mg C-CO2 100 g-1 soil h-1. This value is 6.4 times higher than in the control, resulting in a significant increase in the metabolic quotient from 0.005 in the control to 0.025 mg C-CO2 g-1 Cmic h-1 in the soil with pulp mill sludge. The metabolic quotient in the other treatments did not differ from the control (p < 0.01), demonstrating that these organic wastes cause no disturbance in the microbial community.

scholarly journals The effect of sewage sludge and BAF inoculant on plant condition and yield as well as biochemical and microbial activity of soil in willow (Salix viminalisL.) culture as an energy crop

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e6434 ◽  
Author(s):  
Katarzyna Panasiewicz ◽  
Alicja Niewiadomska ◽  
Hanna Sulewska ◽  
Agnieszka Wolna-Maruwka ◽  
Klaudia Borowiak ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Microbial Activity ◽  
Sewage Treatment ◽  
Optimal Solution ◽  
Residual Effect ◽  
Soil Microbial Activity ◽  
Energy Crop ◽  
Industrial Plants ◽  
Microbial Inoculant ◽  
Soil Microbial

Excessive amounts of sewage sludge produced in sewage treatment plants along with the ban on its storage and dumping require rapid solutions to the problem of sewage sludge management. An example of a rational and environmentally viable method may be provided by its application in agriculture and environmental management. The optimal solution is to use sludge as a fertiliser for industrial plants, including energy crops, that is, those not used in food production. For environmental reasons it is essential to control soil quality and condition following sludge application. Analyses of the residual effect of sewage sludge and bacteria, actinobacteria, fungi microbial inoculant (BAF) on selected physiological parameters of plants and microbial activity of soil were conducted in the years 2013–2015 on experimental fields of the Poznan University of Life Sciences. The results indicate that the application of sewage sludge increased yields and improved selected photosynthesis activity and biometric traits of willow. Among the tested combinations the best results were obtained following the application of sewage sludge combined with the BAF medium microbial inoculant. Similar dependencies were observed when evaluating soil microbial activity.

Toxicity of cadmium to soil microbial activity: effect of sewage sludge addition to soil on the ecological dose

2002 ◽  
Vol 21 (2) ◽  
pp. 149-158 ◽  
Author(s):  
José L Moreno ◽  
Teresa Hernández ◽  
Aurelia Pérez ◽  
Carlos Garcı́a
Keyword(s):  
Sewage Sludge ◽  
Microbial Activity ◽  
Soil Microbial Activity ◽  
Soil Microbial ◽  
Activity Effect ◽  
Ecological Dose
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