Bound water content of biological sludges in relation to filtration and dewatering

Katsiris, N.; Kouzeli-Katsiri, A.

doi:10.1016/0043-1354(87)90004-2

Cited by 177 publications

(66 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Bound water removal requires drying (evaporation) and/or thermal degradation of the particles. Thus, large changes in density can be attributed to different types of processes, the details of which remain controversial (Sato, 1982;Katsiris and Kouzeli-Katsirit, 1987;Robinson and Knocke, 1992). …”

Section: Theorymentioning

confidence: 99%

Characterisation of iron-rich sludge: correlations between reactivity, density and structure

Georgaki

Dudeney

Monhemius

2004

Minerals Engineering

View full text Add to dashboard Cite

This paper discusses the behaviour of iron-rich sludge, a problematic waste product of potable water treatment, minewater/groundwater management and hydrometallurgical processing. The work confirmed the highly hydrous and largely amorphous nature of the sludge and the significant differences that occur in reactivity (rate of acid leaching) and density (densification) depending variously upon the mode of sludge formation, pre-conditioning and storage. A structural study using a combination of FT-IR / ATR, XRD and TG/DTA correlated decreases in reactivity with ageing (i.e., with increases in particle size and/or degree of crystallinity) and increases in density with expulsion of weakly bonded water. The work underpinned studies on recycling of water treatment sludge with ion exchange resins and accelerated densification during sludge management.

show abstract

Section: Theorymentioning

confidence: 99%

Characterisation of iron-rich sludge: correlations between reactivity, density and structure

Georgaki

Dudeney

Monhemius

2004

Minerals Engineering

View full text Add to dashboard Cite

show abstract

“…One of the biggest problems in the field of wastewater engineering is the dewatering of waste sludges (Katsiri and Kouzeli-Katsiri, 1987). In general, whatever the process of sludge production in a WTP or the route of its final disposition, sludge dewatering is a critical and essential condition, serving at least to reduce the cost of transportation and facilitate handling.…”

Section: Introductionmentioning

confidence: 99%

The drying of sewage sludge by immersion frying

Silva

Rudolph

Taranto

2005

Braz. J. Chem. Eng.

View full text Add to dashboard Cite

-The objective of this work was to dry sewage sludge using a fry-drying process. The frying experiments were carried out in commercial fryers modified by adding thermocouples to the setup. During frying, typical drying curves were obtained and it was verified that, in relation to the parameters: oil temperature, oil type and shape of the sample, the shape factor the most effect on the drying rate, at least within the range chosen for the variables studied. Oil uptake and calorific value were also analyzed. The calorific value of the samples increased with frying time, reaching values around 24MJ/kg after 600s of frying (comparable to biocombustibles such as wood and sugarcane bagasse). The process of immersion frying showed great potential for drying materials, especially sewage sludge, obtaining a product with a high energy content, thereby increasing its value as a combustible.

show abstract

“…As the bound water content of the sludge decreases, so does its viscosity. Katsiris and Kouzeli-Katsiri [51] have shown that any treatment which reduces the bound water content of sludges will reduce viscosity and the specific resistance to filtration. Therefore, the bound water content of slurries should be another parameter in describing viscosity.…”

Section: Effect Of Adsorbed Solvent Layers On the Rheology Of Aqueousmentioning

confidence: 99%

Rheological properties of aqueous nanometric alumina suspensions

View full text Add to dashboard Cite

Bound water content of biological sludges in relation to filtration and dewatering

Cited by 177 publications

References 8 publications

Characterisation of iron-rich sludge: correlations between reactivity, density and structure

Characterisation of iron-rich sludge: correlations between reactivity, density and structure

The drying of sewage sludge by immersion frying

Rheological properties of aqueous nanometric alumina suspensions

Contact Info

Product

Resources

About