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Started by kahonde
hello, what is the best oxidising agent that i can use in vat leaching and is there anything wrong with hydrogen peroxide?  
Last commented on by kahonde
THANK YOU VERY MUCH
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Started by Nicollas Manjengwa
Hallo there I want to use lime to increase the Ph from about 7 to anywhere between 9 - 10.5 in effluent for my experiment. How do i calculate the amount of lime to add into the effluent?
Last replied to by David
Review this Nicollas https://www.911metallurgist.com/blog/calculate-ph-without-ph-meter
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Started by Nicollas Manjengwa [closed]
Hello I intend to embark on research and later on assess effectiveness of selected bacteria species that can degrade cyanide effectively. Anyone who has been involved in such work or with any knowledgeable and guiding notes?  
Last replied to by Nicollas Manjengwa
Thank you very much Joel
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Started by rgardila [closed]
Hi Everybody, Someone have information about lab programs to evaluate for a specific case the convenience of use limestone in the neutralisation of an AMD? I would appreciate your comments. Regards, Rafael
Last replied to by Bill Fraser
I attach 6 very useful papers in which you will read: The split treatment of AMD with limestone and lime may offer som...
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220
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Started by New Era [closed]
We want to treat CIL tail cyanide with hydrogen peroxide to lower (destroy) free cyanide to less than 50ppm. We have CCD circuit after CIL tanks. I want know how effective it is and what kind of additional equipment required to prepare and use the ch...
Last replied to by Handerson
Hello! The hydrogen peroxide is not good efficiency in pulp, the better to apply is ammonium bisulfite and a good aerat...
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222
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Started by Nino Bonn [closed]
Hi, I would like to ask what reagents and treatment process are used to neutralize 8-10 pH solution or waste. And it would be great if its economical at any parameters. Thanks
Last replied to by Bob Mathias
Nino, what is in your water that you do not like?  Any metals? Cyanide? Or are you only looking to meet pH specificati...
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282
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Started by ianvallecera [closed]
How can  we neutralize a pregnant leach solution to discharge to river? The pregnant leach solution pond contains 3500m3 of solution containing 18 g/liter Fe and 5 g/liter Ni at a pH of 1.0Can you suggest a design for simple plan to neutralize the P...
Last commented on by Dane Smith
HI, just as a note... Iron will only precipitate at low pH if it of the correct Oxidation state. if not, you will need ...
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Started by Rajesh Sharma [closed]
How to find the right quantity of mixing the flocculant in water by thickener feed?  
Last replied to by Bob Mathias
You best conduct simple laboratory settling tests.  Did you read https://www.911metallurgist.com/dewatering-thickenin...
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Started by Sridharan [closed]
Dear Sirs, I would like to know for my academic interest about the ways to recycle the overburden, tailing etc. of a gold mine into reusable construction and relevant filling material if any. Thanks and regards. Sridhar Pondicherry
Last commented on by Sridharan
Thank you so much.
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241
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Started by tungsten644 [closed]
Is it necessary to have the flocculant solution continuously being agitated while Aging or transferring it in a holding tank would do? 
Last commented on by tungsten644
Hi Dane, We are using a Magnofloc product from BASF and in reference to what you have mentioned regarding the length of...
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234
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Started by Charlie [closed]
Hello everyone, generally, by how much is:  The settling rate of a flotation concentrate increased when the correct flocculant is applied?  The filtration rate of that same flotation concentrate increased when the correct type and amount of flo...
Last replied to by johnclark
With the right flocculant, the settling rate should increase significantly. The added flocculant will require the "optim...
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182
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Started by snowlakemet [closed]
Hello, Looking at filter press options. Is it possible to size a filter with the following information: Mill Feed 4000 dmt/day Cu Conc: 150 dmt/day - feed density 40% Zn Conc: 700 dmt/day - feed density 50% Cu Conc: particle size 70% passing 3...
Last replied to by Jorge Ganoza
It is important to perform thickening and filtration tests to get reliable information on the settling rate and filtrati...
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471
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Started by Carl Jenkins [closed]
Can it be possible for caustic soda (NaOH) to form bridging flocculation in a slurry?
Last replied to by johnclark
There is an article ( http://www.yokogawa.com/ca/technical-library/resources/application-notes/ph-in-iron-ore-slurry-na...
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Started by jovanifirebird [closed]
Do you think it is possible to get an overflow of 1% solid by weight with the right water balance requirement in high rate thickeners or in a gold processing plant? I believe not. Why I am asking you this is, because the plant I got engaged got ...
Last commented on by johnclark
Agree with Jorge's comment - (the % solids is way too high) 1% solids is 10,000 ppm. Settling tests where there is effec...
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Started by pefh [closed]
Hİ, I am chemical engineer student and in our design project, I have to design  horizontal vacuum belt filter for zeolite production and I can't decide how much filtration area? How can I calculate?  our slurry masses  11000kg per hour. please I...
Last replied to by Bill Fraser
Hi, see https://www.911metallurgist.com/blog/how-to-size-a-thickener and https://www.911metallurgist.com/dewatering-th...

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