Answer / Tarun Chaudhary

Treating a waste stream containing both hexavalent chromium and arsenic involves several steps, including pH adjustment, reduction of Cr(VI) to Cr(III), removal of Cr(III) by precipitation or adsorption, arsenic removal by ion exchange or precipitation, and sludge treatment and disposal. Consult local regulations for specific permissible limits and proper waste management practices.

how to calculat suction head in centrifugal pump?

2 Answers   IOCL,

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When an expansion is joint needed on the shell side of a shell and tube heat exchanger?

1 Answers  

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what is unit operation?

8 Answers   Sun Pharma, Zydus Cadila,

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Explain the advantages of using a ball mill over other conventional methods of crushing?

1 Answers  

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1 Answers   ONGC,

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Which type of pneumatic control valve is used mostly Either Air to Open r Air to close the value And guys I need reason for your reason

1 Answers  

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Explain the method of determining maximum differential pressure during hydro testing of shell and tube heat exchangers?

1 Answers  

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What compounds are responsible for the odours that come from wastewater treatment plants?

1 Answers  

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QUANTUM BIOLOGY - EXAMPLE 33.7 : (a) In a DNA of a living cell, the quantum information available in the bases guanine (G) and thymine (T) are | G > = | 110 > and | T > = | 010 > respectively. Calculate | G > - | T >. (b) In a living biological cell, the step time for random walk of an electron is t. The localization time of an electron is T. If i is the geometric average of T and t, find log T as a function of t and i.

1 Answers  

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Explain the largest application for surfactants?

1 Answers  

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What is the pattern of interview questions and which field is of high importance viz., Mass Transfer, Heat Transfer, Petroleum Refining etc ?

2 Answers   Cairn, IOCL, Reliance,

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