Effect of drying on the physical and chemical properties of faecal sludge for its reuse

Septien, Santiago; Mirara, S.W.; Makununika, Blessing; Singh, Asheesh K.; Pocock, J.; Velkushanova, Konstantina; Buckley, Chris

doi:10.1016/j.jece.2019.103652

Cited by 32 publications

(14 citation statements)

References 22 publications

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“…As a result of this, the average of the thermal properties are high. The results agree with those fecal sludge and orange slices [18,38].…”

Section: Thermal Propertiessupporting

confidence: 90%

Analysis of Mass And Heat Transfer Coefficients, Energy Consumption and Efficiency of in Dehydration of Cornelian Cherry

Aral¹

2022

BEN

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Drying is the process of removing water or other liquids from materials. However, drying is commonly used to remove water from food by thermal methods. Drying technology is a combination of transport phenomena and material science. Knowing the mass and heat transfer properties and the energy for the drying process is very important in terms of controlling and improving the process. In the present study, the effects of experimental parameters such as the temperature and velocity of air on mass and heat transfer coefficients, consumption and efficiency of energy in the dehydration of cornelian cherry were investigated. The cornelian cherry fruit was dried in a single layer in a dryer as convective at three different values (50, 60 and 70°C) of air temperatures and three different values (0.4, 0.7 and 1.0 m/s) of air velocities. The effective diffusivity values of moisture (Deff), coefficient of mass transfer (k), and Bi number were calculated using Dincer and Dost analytical approach. The heat capacity, thermal diffusivity and thermal conductivity are calculated as a function of moisture content. The convective heat and mass transfer coefficients were determined using engineering correlations and the Chilton-Colburn analogy. The consumption and efficiency of energy, thermal efficiency, and the efficiency of drying were analyzed for all experimental conditions.

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“…As a result of this, the average of the thermal properties are high. The results agree with those fecal sludge and orange slices [18,38].…”

Section: Thermal Propertiessupporting

confidence: 90%

Analysis of Mass And Heat Transfer Coefficients, Energy Consumption and Efficiency of in Dehydration of Cornelian Cherry

Aral¹

2022

BEN

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“…Similarly, Ajala et al [54] calculated that as the temperature used in the study increased, the thermal diffusivity decreased. Septien et al [55] underlined that while the thermal diffusivity was 14.6 × 10 -08 m 2 s −1 for the raw material, it declined to 27.0 × 10 -08 m 2 s −1 in the dried product. Chakraborty et al [56] determined that as the drying progresses and the moisture content decreases accordingly, the specific heat capacity, thermal conductivity, and thermal diffusivity decrease significantly.…”

Section: Thermal Propertiesmentioning

confidence: 99%

Microwave and convective drying kinetics and thermal properties of orange slices and effect of drying on some phytochemical parameters

Alibas

Yilmaz

2021

J Therm Anal Calorim

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“…Feces and faecal sludge originates from onsite sanitation without greywater are suitable for drying. The dried product could be used as an organic fertilizer with a particularly high phosphorous content and a slow release of nitrogen and phosphorous (Septien et al, 2020). Besides, with high heating value, it could also be used as fuel.…”

Section: Dryingmentioning

confidence: 99%

Nutrient recovery technologies for management of blackwater: A review

Wang

Chen

et al. 2023

Front. Environ. Sci.

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Nutrient recovery and recycling are of great importance in sustainable development. Blackwater (BW) refers to wastewater from toilets, which contains feces, urine, water, and toilet paper from flush toilets. The highly concentrated nutrients of blackwater could be collected through source separation and treated adequately to recover nutrients efficiently and economically. The review intends to give an overview of the characteristics of BW and different techniques to recover nutrients and other valuable products. A number of these technologies are currently under development or being tested at laboratory or pilot scale. The perspective for blackwater nutrient recovery technologies is very positive due to their great potential. For application of source-oriented sanitation infrastructure and systems, there is still a long way to go for development of commercial technologies and valuable products.

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Effect of drying on the physical and chemical properties of faecal sludge for its reuse

Cited by 32 publications

References 22 publications

Analysis of Mass And Heat Transfer Coefficients, Energy Consumption and Efficiency of in Dehydration of Cornelian Cherry

Analysis of Mass And Heat Transfer Coefficients, Energy Consumption and Efficiency of in Dehydration of Cornelian Cherry

Microwave and convective drying kinetics and thermal properties of orange slices and effect of drying on some phytochemical parameters

Nutrient recovery technologies for management of blackwater: A review

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