Yonas Zeslase Belete

13 Questions 16 Answers 0 Followers

Questions related from Yonas Zeslase Belete

Can gas emissions (e.g. CO2) from industries turn into a resource/to reuse it?

As recent studies show, the high % global warming causes by gas emissions (CO2), mostly from industries. Can the CO2 turn into a valuable product/to reuse? How? for what can use? Any suggestion.

21 January 2021 5,524 2 View

What are the best methods to separate pollutant gases from Industries)?

As it is known, industries emit pollutant gases to the environment. Can we list the best methods according to the industry (which emits the gases)?

04 April 2020 3,801 0 View

What are the possible ways for controlling the gas emissions from factories?

Can you help me to elaborate some mechanisms to control the gas emissions from factories, and is that possible to liquefy the gas and use as valuable products ( such as fuel sources, oil,........)?

28 June 2018 4,026 6 View

Why the equilibrium concentration is greater than the initial concentration during adsorption of ammonium-N from water using chars?

I have prepared the initial concentrations with 10, 40, and 100 ppm of NH4+-N which is prepared from the NH4Cl and water. I have done an adsorption experiment using char and it gave me that the...

01 March 2018 6,508 6 View

Which one is cost effective, Pyrolysis or hydrothermal carbonization method? How?

Pyrolysis method versus hydrothermal carbonization method

21 February 2018 5,776 5 View

Atomic force microscope (AFM) versus confocal laser scanning microscope (CLSM)?

Can you give me a suggestion, where CLSM is needed to be used and not AFM and vice-versa?

14 February 2018 5,139 4 View

Which one gives better BET surface area?

I need to measure BET surface area of hydrochar powder. But I am sure that which size of particle can I use to get high better BET surface area. (Not the amount of powder but I mean size of the...

11 January 2018 8,549 4 View

Which one is more efficient for adsorption of gas; in terms of powder or granular?

I am looking for adsorbent from waste sludge, which will use for gas adsorption. The adsorbent is hydrochar (which is produced by hydrothermal carbonization, HTC). So, can you suggest me that the...

03 January 2018 4,968 7 View

What is the importance of using nitrogen gas flow during chemical activation/ activation of hydrochar? Can you recommend me the flow rate and temp. ?

My sample is powder of hydrochar which is prepared from activated sludge and I want to activate with KOH. So, can you recommend me at what temperature and nitrogen gas flow rate is good for...

05 November 2017 4,028 2 View

Can you help me on clarification of adsorbents?

Assume we have a hydrochar adsorbent with high BET surface area and pore volumes. This adsorbent, I want to use for the CO2 or H2S adsorption from the biogas. How can I know the hydrochar...

19 October 2017 4,727 13 View

My sample is activated sludge powder. I have found a result of CHNS using elemental analyzer but not oxygen. So, how can I determine the oxygen value?

This is for CHNS-O analysis.

06 September 2017 8,208 0 View

How can I work for contact angle measurement of powder sample?

The sample is hydrochar powder and I want to determine the contact angle. So, can you help me on this issue?

01 August 2017 8,525 1 View

Suggestion: software that helps for techno-economic analysis and life cycle assessment

Anyone can suggest to me, software that helps for techno-economic analysis and life cycle assessment for energy generation from wet-organic waste using thermal treatment. Thanks.

01 January 1970 6,937 4 View