Removal of Chromium from Tannery Effluent Using Plant Bark and Leaf

2017 ◽  
Vol 6 (2) ◽  
pp. 139-144
Author(s):  
Md. Razib Hosen ◽  
Ashiqur Rahaman ◽  
Moriom Akter Hena ◽  
Md. Mehedi Hasan ◽  
Umme Habiba Bodrun Naher ◽  
...  
Keyword(s):  
Tannery Effluent

Numerical Examination of Jets Induced by Multi-Bubble Interactions

2018 ◽  
Author(s):  
Joydip Mondal ◽  
Arpit Mishra ◽  
Rajaram Lakkaraju ◽  
Parthasarathi Ghosh
Keyword(s):  
Target Location ◽  
Effluent Treatment ◽  
Tannery Effluent ◽  
Particle Erosion ◽  
Coverage Area ◽  
Transient Behaviour ◽  
Bubble Interactions ◽  
Time Histories ◽  
The Many ◽  
Fictitious Particle

Jets produced by the interaction of collapsing cavitating bubbles containing high-pressure gases can be utilized for wide variety of applications e.g. particle erosion, medical purposes (lithotripsy, sonoporation), tannery effluent treatment, etc. Among the many parameters, this jetting is largely influenced by spatial orientation of bubbles, their times of inception, relative bubble size ratio. In this context, multiple cavitating bubbles are able to generate numerous simultaneous jets, under suitable conditions, hence operating over a wider coverage area. Such multi-bubble arrangements can go a long way in enhancing the erosive impact on a target location even at cryogenic temperature (< 123 K) and hence necessitate investigation. In this paper, different configurations of multiple-bubble interactions are numerically simulated to examine jets directed towards a target location (fictitious particle, cell etc.) using computational fluid dynamics. No phase change is considered and the effect of gravity is neglected. The transient behaviour of the interface between the two interacting fluids (bubble and ambient liquid) is modelled using VOF (volume of fluid) method. In this paper, results obtained for different bubble configurations through numerical simulation are validated against suitable literature and further explored to assess the resulting jet effects. The time histories of interacting bubbles are presented and the consequent flow-fields are evaluated by the pressure and velocity distributions obtained. The same calculation is repeated in cryogenic environment and the results are compared. An attempt is made to approach towards an optimum arrangement and conditions for particle erosion.

Chromate tolerant bacteria isolated from tannery effluent

2001 ◽  
Vol 78 (1) ◽  
pp. 31-35 ◽  
Author(s):  
Tuhina Verma ◽  
T Srinath ◽  
R.U Gadpayle ◽  
P.W Ramteke ◽  
R.K Hans ◽  
...  
Keyword(s):  
Tannery Effluent

Pollutant removal from tannery effluent by electrocoagulation

2009 ◽  
Vol 151 (1-3) ◽  
pp. 59-65 ◽  
Author(s):  
Fernando R. Espinoza-Quiñones ◽  
Marilda M.T. Fornari ◽  
Aparecido N. Módenes ◽  
Soraya M. Palácio ◽  
Fernando G. da Silva ◽  
...  
Keyword(s):  
Pollutant Removal ◽  
Tannery Effluent

Cellulose Based Electrospun Nanofilters: Perspectives On Tannery Effluent Waste Water Treatment

2021 ◽  
Author(s):  
Senthil Rethinam ◽  
Sardar Batıkan Kavukcu ◽  
Thiagarajan Hemalatha ◽  
A.Wilson Aruni ◽  
Aylin Sendemir
Keyword(s):  
Metal Ions ◽  
Waste Water Treatment ◽  
Toxic Metal ◽  
Poly Vinyl Alcohol ◽  
Tannery Effluent ◽  
Tea Leaves ◽  
Leather Industry ◽  
Elongation At Break ◽  
Hazardous Metal ◽  
Effluent Waste

Abstract Development of nanofilters with the capability to remove toxic metal ions from effluent wastewater will be of immense help to the leather industry. In this study, fibrous nanofilter (FNF) was prepared using micro cellulosic fiber (MCF) and tea leaves microparticles (TLM) blended in poly (vinyl) alcohol (PVA). FNF was analysed for its efficacy to remove hazardous metals from tannery effluent wastewater. The FNF had promising traits of tensile strength (19.24+0.05 Mpa), elongation at break (22.31+0.12 %), flexibility (10.88+0.05 %), water absorption (37.86+0.14 %) and desorption (32.54+0.33 %). The metal adsorption studies clearly reflected the removal of toxic Cr (VI) ions from the effluent water by FNF. The study establishes an economically feasible and highly efficient way to remove hazardous metal ions from effluent wastewater.

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