2 Questions 5 Answers 0 Followers
Questions related from Mashiur Rahman
In laboratory, we use different kinds of acids, chemicals etc. After using how can we drainage these acids/chemicals ?
03 March 2018 4,610 3 View
In Bangladesh, we want to use liquid form of cow-dung as a fertilizer, which is found from bio-gas plant as a byproduct. But by testing, we find that it has excess of chromium which is very...
11 November 2017 3,669 4 View
