drinking-water-production

In particular, filtration down to 15-50 microns and especially the filtration of ferric iron already present. I've read somewhere that the ratio of ferric to ferrous iron can impact their removal, but I cannot remember how, or where I read it.   Thanks!...

Hello, I would like to know when the presence of bacteria affects the breakpoint chlorination curve. I know it takes about 10 times the dose of ammonia to reach the breakpoint. Does this mean that the presence of bacteria does not influence the chlorine demand? 2nd question: when calculating the C...

We are programming operations at a drinking-water plant and want to optimize its tank in order to reduce head loss. Explanation: We know the tank volume and consumption at outlet. We would like to either increase or decrease the speed of the pumps depending on consumption. For example, D-1 consumpt...

Does anyone use predictive formulas to determine the distribution of mono-, di- and trichloramine according to the pH and chlorine dosing used in ammonium-containing water?

I'd like to know what treatment system is recommended to eliminate yeast in water with a view to rendering it potable. Source of yeast unknown as yet.

My query is about rehabilitating an aerator and sand filters in a drinking water treatment plant. I have been tasked with rehabilitating the iron removal and sand filtration systems used in my local utility. What type of sand do you recommend?...

Hi everyone I am a student and am preparing my final project. My topic is the comparative study of coagulants: aluminum sulfate, PAC, and polyDADMAC for clarification of drinking water. I would like to know if you have any information on this topic: commonly used doses, optimal conditions, aluminu...

We have a 70 m3/h treatment plant located on an island and would like to produce chlorine on site via electrolysis Do you have any feedback on electrolysis in terms of pros and cons, operating constraints and costs, formation of by-products, risk of explosions (H2), salt refining, etc....

Hi Everyone, I am looking for a device to measure turbidity so I can determine the precise amount of suspended solids in my water system. I want something reliable, accurate and highly sensitive. Any recommendations? Thank you in advance....

We use Biodagene filtration media (expanded shale ore) in a denitrification unit, and at output we are encountering high concentrations of nitrites.

Hello, I'm looking for methods used to monitor water table levels: - How do you monitor levels generally throughout the year, and how do you manage pumping during droughts? - How do you follow up on a daily basis on drawdowns during the pumping phase, and what real-time analyses do you perform? ...

Hello, I am looking for information on the source of anaerobic sulfate-reducing bacteria in drinking water and a way to deal with this contaminant. I would be grateful for any input.

Hello, Very soon we will be implementing EVOQUA's chlorine dioxide generation system (reagents: HCl 30% + chlorite ion 30%). Do you have any feedback on this type of system, especially in regards to commissioning? Thank you in advance...

What flocculants do you use? Do you know of any proven alternatives that can replace aluminum salts? I saw on the Internet that in Paris, they are using ferric chloride: is it as effective? (And if so, why is the practice not more widespread?). Have you ever tested other alternatives, and can you...