Results 11 to 20 of about 46,811 (265)
Toxicity assessment of sewage sludge from municipal sewage treatment plants
The aim of this study was to assess the toxicity of sewage sludge from the municipal sewage treatment plant in Bialystok. Raw sewage, sewage sludge from the primary settling tank, activated sludge, sludge before the fermentation chamber, recirculated ...
Eliza Hawrylik +2 more
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Sewage sludge, rich in organic matter and nutrients, is widely used as a fertilizer to increase the fertility of soil. The direct application of sewage sludge without any treatment causes soil contamination as well as significantly affects the earthworm ...
Hira Khalid +5 more
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Biochemical Neutralization of Coke Excess Sewage Sludge During Anaerobic Digestion Process [PDF]
The paper presents the results of the study concerning the production of biogas, thermal energy gain and changes of physical-chemical properties during the process of anaerobic digestion of the municipal sewage sludge amended with coke sewage sludge. The
B. Macherzyński +1 more
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A widespread method of sewage sludge disposal is still simple storage in sludge lagoons. Subsequent thermal utilization is hardly possible because sludge properties change over time and energy content is reduced.
Anna Tsybina +3 more
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Influence of Valorization of Sewage Sludge on Energy Consumption in the Drying Process
Valorization of digested sewage sludge generated in a medium-sized sewage treatment plant and the effect of valorization on energy consumption during sludge drying used for energy recovery are presented.
Ewa Siedlecka, Jarosław Siedlecki
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The management and disposal of excess sludge are emerging issues owing to the high costs associated with treatment. In this study, the viability of a modified bentonite was investigated as a conditioning agent for the stabilisation of heavy metals (i.e.,
Yu Cheng +6 more
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Synthesis of zeolite P from sewage sludge ash [PDF]
Sewage sludge is an example of waste considered as biomass. The utilization of sewage sludge is more often realized through combustion, which simultaneously constitutes the recovery of energy from a renewable source.
Latosińska Jolanta
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ECOTOXICOLOGICAL ASSESSMENT OF THE SOILFERTILIZED WITH SEWAGE SLUDGE [PDF]
Sewage sludge and its management constitute one of the most important environmental problems. The introduced the Sewage Sludge Directive 86/278/EEC advocate utilization of sewage sludge in agriculture.
Justyna Kujawska +1 more
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Effect of turbulent flow on flocculation of fine cohesive sediment
Using the fractal cluster growing model,the effect of turbulent flow on the flocculation velocity,the average diameter and the fractal dimension of flocs are studied.The model simulates the collision,the bonding and breakage of sediment particles under ...
CHAI Chao-hui +3 more
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The effect of municipal sewage sludge on properties physicochemical and microbial agricultural soil
The organic matter content of sludge can improve the physical, chemical and biological properties of the soil ensuring better cultivation and good agricultural productivity.
Naima DOUAER +4 more
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