Karthika Natarajan

10 Questions 17 Answers 0 Followers

Questions related from Karthika Natarajan

Removal efficiency of parameters in anoxic tank?

We are working in the water and waste water treatment.I need details about anoxic tank which is provided in Sewage Treatment plant. How much the removal efficiency of parameters?(BOB,COD etc.)...

05 January 2018 2,947 2 View

What is permissible limit of nitrogen and ammonia?

Permissible limit of nitrogen and ammonia for outlet of sewage treatment plant. Purpose of using outlet water is irrigation.

30 March 2017 466 3 View

How and why at pH 8 gives more efficiency on removal of Cr heavy metal?

I have done my soil washing using EDTA and got result at pH 8 gives more removal of Cr.What is the reason for base pH?usually removes for acid pH but for Cr gave more efficiency at pH 8..

15 June 2016 1,512 4 View

How and where to be dispose waste water generated from soil washing process?

what kind of treatment is recommended for waste water from soil washing?

19 May 2016 5,194 3 View

What is the permissible limit of heavy metals in soil?

please tell any IS standards for permissible limit of heavy metals in soil?

07 May 2016 9,986 18 View

How to prepare stock solution for multiple elements to analyse heavy metals in ICP-AES?

i have prepared stock solution for chromium,zinc,nickel,lead and copper(1ppm,5ppm,10ppm,50ppm,100ppm) from their respective salts.now i dont know that how to make all this elements together for...

16 April 2016 9,075 11 View

How to maintain pH in the nature of base?

I want to maintain pH in base but also it should be in the nature of acid. My solution to test in ICP-AES for heavy metals is EDTA washed soil solution which is base nature. To keep in ICP, it...

10 April 2016 2,254 9 View

How to prepare 0.001,0.005,0.01,0.05 and 0.1M of EDTA solution?

Iam going to wash my cadmium(heavy metal) contaminated soil using EDTA.i need different cocentration of EDTA,so help me ..

27 March 2016 6,497 13 View

Is there any standards for heavy metals permissible limit?

In my sample,i got results as Fe- 0.64 ppm , Al-0.64ppm and Mg-0.23 ppm.Is the level of concentration is enough for soil washing by EDTA?? Or do I need more concentration for removal?

01 February 2016 2,522 3 View

Which instrument is more effective to analyse heavy metals?

for analyse of heavy metals contamination soil..

28 December 2015 935 33 View