Functional Demarcation of Traditional Off-White Colored Water Pots Manufactured from Rajasthan Clayey Soils and Red Colored Water Pots from Gujarat Clayey Soils Using Spectrographic, Cooling and Strength Studies--A Case Study from Jodhpur, Rajasthan, India

Kaurwar, Amrita; Satankar, Raj Kumar; Gupta, Sandeep; Aravind, Usha K.; Kothari, K. L.; Soboyejo, Alfred; Plappally, Anand

doi:10.1557/adv.2017.127

Cited by 4 publications

(6 citation statements)

References 7 publications

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“…Potters from Western Rajasthan, India are well acquainted with the manufacturing of off-white water storage pots 9 . Percolating decontaminated/filtered water drips down these off-white water pots 10 which can be collected and used as potable water.…”

Section: Introductionmentioning

confidence: 99%

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Household Production of Ceramic Water Filters in Western Rajasthan, India

Gupta¹,

Satankar²,

Kaurwar³

et al. 2018

IJSLE

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--Frustum shaped clay ceramic water filters are being manufactured by the potters of the Thar Desert in India for household use. The clay composite consists of a homogeneous mixture of equal volume of clay and sawdust. A low-cost manual press, to form the clay composite into frustum shape, is developed by the present authors. This article elaborates critical investigation of the specific traditional clay-firing technique used, to achieve the required functionality and material property of the filters. Household based manufacturing of these filters is found to be markedly different from factory based production by firing process. The functional features of the clay ceramic filter, such as microbial filtration rate, flow rate, and compressive strength, are evaluated and presented. An E. coli bacteria removal efficiency of more than 99% is achieved using these clay ceramic water filters. Optimal filtration rates are achieved between ambient temperatures ranging from 30 o C -40 o C.

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Section: Introductionmentioning

confidence: 99%

“…A 20 liter clay container supports a 9 liter filter receptacle and cools the filtrate collected within. The clay container is made using the traditional technique for manufacturing water storage pots 9 .…”

Section: Introductionmentioning

confidence: 99%

Household Production of Ceramic Water Filters in Western Rajasthan, India

Gupta¹,

Satankar²,

Kaurwar³

et al. 2018

IJSLE

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“…The presence of quartz influences the mechanical properties of fired ceramics [52]. The appearance of feldspar aided densification and reduced sintering time [32,54,55].…”

Section: X-ray Diffractionmentioning

confidence: 99%

“…The compressive strength displayed polynomial decrement with increasing organic filler fraction in the clay matrix as shown in Fig. 14. This linear decrement is supported by the fact that increasing the apparent porosity may result in decreasing the load-bearing capacity [32]. The cracks present in the CO ceramics extended slowly and might propagate along the compressive axis to form the crushed zone, which promoted the compressive failure [66,67].…”

Section: Compressive Strengthmentioning

confidence: 99%

“…Discharge through square plate water filters containing 20 cm of water is modelled and compared with cylindrical and frustum-shaped filters with a water column height of 20 cm [7]. The results of the studies imply providing notion toward possible scaling of such ceramic devices [10,32]. Bimodal pore distribution in clay ceramics was found to improve its fracture resistance [33].…”

Section: Introductionmentioning

confidence: 99%

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Establishing correlations among pore structure, surface roughness, compressive strength, and fracture toughness of ceramic water filters local to Rajasthan, India

Kaurwar¹,

Agrawal²,

Singh³

et al. 2019

Desalination and Water Treatment

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This article discusses the characterization of local clay-organic (CO) ceramics used in the microfiltration application in India. Local clay and sawdust were the raw materials for these ceramics. Wet mix with specified volume fractions of these raw materials was hydroplastically formed to square plates, cured, and fired at 850°C. Once fired, these ceramics showed a prominent presence of silica, alumina, and oxides of iron. Quartz, potassium feldspar, and hematite are the major minerals in these ceramics. The dominance of pores orthogonal to the surface was a feature in this family of ceramics. The 50O composition of the CO ceramics is observed to have a maximum frequency of orthogonal pores. Therefore, an example of gravity-based filtration flow models of this material shaped in distinct forms is carried out to enumerate possible scaling. The surface roughness of the cured specimen plate varies linearly with the porosity of the mixture. The compressive strength shows a polynomial increase with an increase in the values of surface roughness. The fracture toughness is a linear function of the surface roughness of these CO ceramics.

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