How can I treat a waste stream containing both hexavalent chromium and arsenic?

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What are some good strategies for curing tube vibration in shell and tube exchangers?

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How to estimate the efficiency of a pump?

2 Answers   OGDCL,

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How can metals be removed from aqueous waste streams?

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ENGINEERING MATHEMATICS - EXAMPLE 8.3 : Solve the first order differential equation : (Z + 1)(dy/dx) = xy in term of ln |y| = f(x). Z = (x)(x).

1 Answers  

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Question 54 - There are 2 alternatives of investment. Choice 1 : A trader offers you an investment opportunity where your investment of A$15000 presently will be A$18000 after 4 years. Choice 2 : A bank offers you 5 % annual return for your initial investment of A$15000. Question a : What is the equivalent bank payment after 4 years? Question b : By using the concept of equivalence in engineering economy, which is the better choice, betwen 1 and 2, that will be more profitable after 4 years?

1 Answers  

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pleas tell me about chemical engineering apptitude test..

0 Answers   IOCL,

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hi.i m student of chemical engg. and studying in 5 th sem.how can i improve my technical knowledge..can u sugest me a link like book or any website..?

3 Answers  

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What is quicklime and what are the uses?

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BIOCHEMICAL ENGINEERING INSTRUMENTATION - EXAMPLE 29.5 : The following formula is used as a reference : (analyte signal) / (internal standard signal) = (f-factor) x (concentration of analyte) / (concentration of internal standard). A solution containing 3 mM of analyte and 4 mM of internal standard gave peak signals of 2 and 3 mamps respectively. Another similar solution containing 2 mM of analyte and 1 mM of internal standard gave peak signals of 1 and 4 mamps respectively. Find the average f-factor.

1 Answers  

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PLZ ANYONE SEND ME PLACEMENT PAPERS OF I.O.C.L MY ID---- gaurav.nitw.5609@gmailcom

0 Answers   IOCL,

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oil field interview question

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