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,........)?

05 June 2018 8,584 8 View

Size of hydrochar/activated hydrochar powder or granular for adsorption?

I am working with adsorption of (1) pollutant gases from synthetic biogas , (2) dyes from water, and (3) ammonium from synthetic water using hydrochar and activated hydrochar. In this, I need to...

04 May 2018 1,538 4 View

What are the two major possible reasons for reduction in salt rejection during biofouling process of RO membranes.?

How?

01 February 2018 2,912 0 View

Wastewater treatment systems in fish ponds include biological treatment of wastewater flowing directly into the pool. ..?

Wastewater treatment systems in fish ponds include biological treatment of wastewater flowing directly into the pool. The treated water could be used for irrigation, but there are public health...

01 February 2018 5,597 0 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...

31 December 2017 8,244 4 View

How to check the quality and monitor the bottled water industry?

Assume you are appointed as the microbiologist expert of NGOs and to aid one country for monitoring system for bottled water. The general aim is to analyze the microbial quality of various brands...

11 December 2017 9,971 5 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...

10 November 2017 6,938 2 View

What is the importance of nitrogen gas flow during chemical activation for the production of highly microporous carbons?

Hydrochar material can be chemically activated using KOH to synthesis of porous carbon materials. During this, the mixture (of hydrochar and KOH) can be heat-treated between 450 - 800 degree...

10 November 2017 2,078 3 View

Looking a paper: relates to hydrochar which prepared from activated sludge of wastewater treatment plant using hydrothermal carbonization ?

10 November 2017 7,171 1 View

What is the difference between FTIR and FTIR-ATR, and which one is better to test for powder samples, why?

I have used the FTIR-ATR but I want to be sure that what will be using FTIR. ......

10 November 2017 851 6 View

What is the characteristic length to determine the Reynolds number for the scattered turbulent fluid flow?

Dear all, I just saw this example in FB on the difference between laminar flow and turbulent flow. The flow from a pipe hits the sink and scattered. The flow from the pipe is characterized as...

02 March 2021 1,999 5 View

Issues with Permeabilization during Flow Cytometry?

Hello Everyone. Currently I am working to characterize macrophages in the myocardium after ischemia-reperfusion injury in rats. Due to the low total cell number isolated from rat hearts I can...

01 March 2021 3,867 3 View

Any research papers for extraction of nutrient deprivation on macroalgae? Analysed by HPLC-UV and GC/MS. Possibly from macroalgae genus Rhizoclonium?

I am doing my thesis on the nutrient deprivation on the macroalgae Rhizoclonium sp. I will be analysing the levels over a period of roughly 5 days by HPLC-UV and GC/MS. I will be using seawater as...

28 February 2021 6,477 1 View

Necessary tube lenght to cool Natural gas in a dry-ice cooling bath?

I have a tank which contains natural gas at 250 Bar and 293 Kelvin. I want to cool the gas in a dry-ice cooling bath to about 195 Kelvin. The gas will flow in a copper-tube through the bath with a...

27 February 2021 8,128 1 View

Exit velocity of natural gas from pressurized tank?

Hi Guys. I'm a mechanical engineer and have a bit trouble, would be very glad if you could help me with my questions. I have a pressurized tank which contains Natural Gas at 200 Bar and 293...

26 February 2021 6,253 3 View

Gas sensor response and recovery time independant of flow rate and chamber volume?

I am trying to obtain the response and recovery times for my gas sensor device. It appears the the response/recovery times are primarily dependant on the flow rate of the gas I inject into the...

26 February 2021 1,511 3 View

Why do a weight decrease for thermal degradation in nitrogen gas condition?

Hi all The question is related to TGA(Thermogravimetric analysis). Thermal degradation easily understood but why do samples weight decrease? altough just binding is broked, the weight of...

26 February 2021 1,100 5 View

Why do the air flow results vary totally when adding scalar in CFD ?

Dear All, We are using Autodesk cfd to calculate the air flow in a single sided naturally ventilated room, where air flow depends only on buoyancy due to temperature difference between inside and...

25 February 2021 9,602 4 View

Unknown debris sheets observed in cell culture flasks?

Hi, We culture neural progenitor cells in T175 culture flasks coated with PLO-Laminin. We have successfully grown these cells with our protocol for months. Recently, we observed large sheets...

25 February 2021 3,443 4 View

Why anti-CD20 or other antibodies are not used to label target cells in flow cytometry t-cell cytotoxicity assay?

New to the field of cell therapy. Why fluorescent-labeled antibodies to target cell antigens are not used for determining target cell count by flow cytometry in cytotoxicity assay (eg car-t)? Cell...

21 February 2021 3,278 3 View