Biological ion exchange on THMs precursors reduction on high DOC water?

More Mehrnaz Sadrnourmohamadi's questions See All

I want to make a lysing solution to lysis RBC and WBC in the cell counter device but with the human blood the WBC is all in lymph. what should I do?

I need to make a lysing solution to lyse the RBC and WBC for using in cell counter of sysmex k1000. When I use the blood control all parameter are normal but when I used the human blood the cell...

11 February 2024 8,536 0 View

How to quantify Sodium Lauryl Sulfate content in the distilled water?

I have a solution containig some salts and also Sodium Lauryl Sulfate (SLS). How can I identify the quantity of this surfactant?

13 July 2023 9,195 2 View

Why does gel in phase lock tubes come as the upper layer?

I used phase lock tubes for RNA extraction, but after adding chloroform and spinning down the gel came on top of aqueous layer! does anyone know why this might happen? and what should I do to...

25 April 2023 8,718 0 View

How to encounter endogenous bacterial contamination?

Dear fellows I am into micropropagation of calladium. we didn't observe any bacterial contamination during the initiation and first subculture stages. the second subculture was done last week and...

09 August 2022 6,391 3 View

Why i can not replicate PDMS mold out from master with nanoholes?

I have a master with nanohole with diametre ~ 200 nm and a depth of 150 nm. i can not replicate the PDMS mold out from this master, every time PDMS is attached and fill the holes... Does anyone...

08 May 2022 1,143 0 View

What is a solution for "recovery" of certain types of elements from seawater by using a membrane? As an example, the recovery of just Lanthanum?

-The atomic radius of lanthanum is approximately 0.35 nm, as opposed to 0.3 nm for water molecules. -Seawater sample also contain organic contaminants such as Mg, Na, etc. some of them with the...

02 January 2022 6,673 4 View

2% Methyl Cellulose being separated after autoclave?

Hello everyone! I'm trying to make 2% MC, but after I autoclave the solution the water and the gel phase separate from each other! What can be done about this? Can I put it again on stirrer to...

21 July 2021 7,568 3 View

How can I get the diameter (molecular size) of the drug?

Diclofenac is separated by a nanofiltration membrane and the molecular size of diclofenac is needed to prove the mechanism of size exclusion. I did not find the molecular size of diclofenac...

29 October 2020 7,792 2 View

How do you eliminate and control internal bacterial contamination in plant tissue culture?

Hi dear fellows I am working on micropropagation of Begonia and Gloxinia which in both of them have internal bacterial contamination. I tried ppm and antibiotics in media but both of them have...

20 September 2020 8,423 4 View

How do you do calculation for preparing silver thiosulfate?

hi every body. silver thiosulfate (STS) is an ethylene inhibitors that enhance shoot organogenesis. the following is the preparation of STS according to sigma aldrich web site: Prepare a 0.1...

17 July 2020 4,486 1 View

• What the possible Persistent Organic Pollutants and Heavy metals present in fluorspar, sediments, and water bodies around its mining area?

Approximate concentrations are require in compared with the WHO permissible limts

11 August 2024 2,723 1 View

Handling Missing Data and Building a Predictive Model with Incomplete Information ?

I am developing a predictive model for a water supply network that involves 20 influencing points. However, I only have historical data for 10 out of these 20 points. I would like to know how to...

10 August 2024 4,005 2 View

Which Scopus Journal provides the most affordable fees?

"PUBLISHING IN A SCOPUS JOURNAL" Researchers are now at a cross road. The critical need to publish in a Scopus or ISI, etc journal is ever vital. Journal Publication fees must be submitted....

10 August 2024 8,621 1 View

Seeking Advice on Viability and Execution of Undergraduate Thesis Topic?

Hello everyone, I am currently developing a thesis proposal and would appreciate your input on its viability and how to effectively carry it out. My proposed topic is: "Does the perceived threat...

10 August 2024 8,992 0 View

Basis set and input instruction to calculate HOMO and LUMO using Orca for Imidazolium based organic salts?

Hey there, As a synthetic chemist delving into theoretical calculations for my imidazolium-based organic molecules, I would greatly appreciate any guidance on the appropriate input instructions...

09 August 2024 5,444 7 View

Why Do TDS and EC Increase with Larger Wastewater Volumes, While BOD and COD Decrease?

I have carried out MFC experiments on three different volumes, 50, 500 and 1000 mL of wastewater. Results after MFC treatment shows that TDS and EC are more in larger volumes of water i.e. TDS and...

09 August 2024 9,621 0 View

Do interactions between biosphere, carbon cycle, & water cycle impact global warming & interaction between atmosphere & hydrosphere?

How do interactions between the biosphere, the carbon cycle, and the water cycle impact global warming and interaction between the atmosphere and the hydrosphere?

09 August 2024 3,291 2 View

Who will be moral responsible for the death of thousands of people in the event of an earthquake?

Who will bear moral responsibility for the deaths of thousands of people in the event of an earthquake? Weeks and months remain before the onset of strong earthquakes that bring death to...

08 August 2024 6,134 12 View

Is it true that $\det(V(A))$ may be only $\pm 1$, depending on $n$, for the last symmetric tridiagonal matrix $A$?

One can try to generalize the Vandermonde determinant in the following direction: Let $A$ be any symmetric $n$-order square matrix. Consider its powers' diagonal elements $(A^k)_{ii}$ and...

08 August 2024 6,690 1 View

How to calculate CCS for Sodiated adduct ions and Multiply Charged Ions?

I'm currently working on calculating the collision cross section (CCS) for various ions, and I'm facing challenges when dealing with sodiated and multiply charged ions. Most of the resources I’ve...

08 August 2024 8,329 0 View

Hadi Baqeri

some materials I found may help you:

strong-base Anion Exchange; a synthetic resin was evaluated and found quite effective for THM precursors removal but unable in pretreated waters;

https://babel.hathitrust.org/cgi/pt?id=uc1.31822024242588&view=1up&seq=24

and another resin was tested; https://www.jstor.org/stable/41268395?seq=1

weak-base Anion Exchange; https://www.jstor.org/stable/41270349?seq=1

A Mixed Cation and Anion Exchange Resin System for the Simultaneous Removal of NNitrosodimethylamine and Trihalomethanes Precursors from Water:

https://tigerprints.clemson.edu/cgi/viewcontent.cgi?article=2973&context=all_dissertations

Article Using Anion Exchange Resins to Remove THM Precursors

Article Removal of THM Precursors by Coagulation or Ion Exchange

Of course, they are not in cold water or at least not mentioned.

Makia Al-Hejuje

you can see the research