If using polymers for flocculant in a waste water treatment plant how often should they have a tox test done?

More Julie Porter's questions See All

I would like to claim authorship of the article below but have been unable to do so?

Experiences of sleep hygiene education as an intervention for sleep problems in children with developmental disabilities : findings from an exploratory study

07 December 2020 3,607 3 View

Atlas-TI 8: How come some codes with no quotations and no density cannot be deleted?

Hi, I am cleaning and reorganizing some data and there are some codes that I removed all quotations from and still, I cannot remove them. The option to delete them is not available. Does anybody...

28 September 2020 409 2 View

How to submit annotated genomes to NCBI?

Hello, We would like to submit annotated bacteriophage genomes to NCBI but we have a bit of a hard time to fully understand the process. We already created the bioproject and biosamples and...

07 September 2020 715 3 View

Mir-prefer failed on bam sorting ?

Hello, I am trying to run the pipeline MiR-PREFeR I have run the command pipeline and I have this error after the "Done sam2bam" I have this error : Error occurred when filtering regions and...

04 March 2020 5,930 3 View

Why does my qPCR look like this?

qPCR assays that previously worked perfectly are not working any more and the results are, in a word, baffling (see picture). The amplification appears to work fine until cycle 30 or 35 and then...

20 November 2019 6,650 1 View

Who should be the first author?

After working tirelessly with your graduate student to carry out a research and making serous input in a journal article involving both of you., who should be the first author of this publication?

13 June 2019 4,741 5 View

Can someone suggest a tool for theming qualitative data from a systematic lit review?

I am exploring the composition of an holistic palliative assessment for my dissertation

29 April 2019 4,599 6 View

Searching DNA sequence of artificial intron (ie, splice site study) for inserting in plasmid (for drosophila cell system)?

I want to construct a plasmid (for Drosophila cell system) containing a intron in order to study splicing process. In detail, I would like to insert wether a weak or a strong splice donor site...

27 March 2019 9,210 1 View

Can anyone explain why Jisc now uses the term 'digital capabilities' rather than 'digital literacies'?

I am researching student understandings of what it means to be digitally literate and trying to see if they can move beyond being able to use different technologies and include other elements. The...

21 March 2019 6,092 4 View

Plasmid Problems: Is it possible to use RE to cut a section out of a plasmid & immediately amplify it?

I have a 1.6kb insert that has been cloned into a plasmid. I would like to cut a section out of this plasmid that is flanked by restriction sites for ECOR1. Would it be possible to digest the...

11 February 2019 2,848 7 View

Which is the best place in the world for the plant biotechnology research?

I am searching for a good place for the Post Doc,

02 March 2021 4,053 3 View

How to separate water from glycerol solvent in a solvent recovery vacuum distillation column?

I am currently doing my third year design project. I have been assigned to design a glycerol recovery column in vinyl acetate monomer production. The process unit before the recovery column is an...

01 March 2021 9,525 4 View

Which bacteria are suitable for quorum sensing screening?

I want to find a quorum sensing inhibitor from plant extracts. Klebsiella pneumoniae, Moraxella catarrhalis, Staphylococcus aureus, and Streptococcus pneumoniae. I looked for these strains...

01 March 2021 7,675 3 View

What is the state of the drug inside solid lipid nanoparticles (SLNs)?

I am a little confuse with the mechanism of solid lipid nanoparticles (SLNs). The main point of encapsulating drugs into SLNs is because some drugs have low solubility in water. Therefore, SLNs...

01 March 2021 3,703 3 View

Isolates of Hymenoscyphus fraxineus?

Dear Dr. Cai, my name is Simone Prospero and I work in the team of Phytopathology at the Swiss Federal Institute for Forest Snow and Landscape Research (WSL;...

01 March 2021 1,133 1 View

Why is the sum of the elements in a row in a Q matrix equal to zero?

When explaining substitution models, the substitutions are expressed as Q matrix. Why is the sum of the elements in a row zero?

28 February 2021 3,864 3 View

Where to find data on trees in tropical agroforestry?

Hi, I'm looking for data (mainly related to management: growth rate, canopy size, soil and climate preferences, etc.) about tropical trees used in tropical agroforestry. Have you ever heard about...

28 February 2021 7,356 8 View

How to remove fatty material from plant extract?

The resultant solid was partitioned three times with 250 ml of petroleum ether (40-60/c) to remove any fatty material and evaporated to dryness.

28 February 2021 9,464 2 View

Can polymer concentrations be calculated based on the number average molecular weight?

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28 February 2021 7,882 2 View

What is the density for pva electrospining?

I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...

28 February 2021 298 3 View

Raul Antonio Di Toto

Main concern of flocculants in emulsion is shelf life. So first thing to check is how homogenous is the flocculant in the IBC/drums. You can check at 1/3, half and 2/3 of the shelf life. If you find 2 phases, a quick fix could be using a mobile mixer directly onto the IBC. Shake well before using the IBC and be sure that the flocculant is again in 1 single phase. The supplier of the flocculant should help you in this and/or other strategies.

Abdulmuhsin S. Shihab

The Polymers Selected must have a permission to be Used in wastewater treatment and No need to test.