Questions & Answers

Operation Philosophy for Water Conveyance / Transmission Systems

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Dear All Please share your views and published literature on the operation philosophy for water distribution / transmission systems.  It could be for both ...

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Use of Quasi Alkanility in drinking water quality

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Dear All I wanted to know the importance of reporting & testing of quasi alkalinity for SWRO potable testing regime.  Why it is done and how to intrepret the ...

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Arsenic mitigation in high volume water flow

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I'm looking for recommendations for technical solutions for removing Arsenic from Municipal level water with flow rates such as 140 cubic meters of flow per ...

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CHEMICAL DISPENSING TAPS

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We are working with a rural community who draw water from springs and wells and take it home foruse in 20 litre containers . We have in mind installing a ...

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Financial tools used to manage risks due to freshwater extremes

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In case anyone has any knowledge/expertise on financial tools used by insurance / reinsurance industry to manage risks due to freshwater extremes, we'd love ...

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Iron Removal

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Dear All I am designing a seawater filtration plant for water flooding project an a oil producing platform.  The influent iron contain of the source is in ...

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Coulter Count vs Silt Density Index

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Dear All I am exploring about the seawater pretreatment requirements of injection water for water flooding operations.  I came across the Coulter Count ...

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seawater injection plants

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Hi All I am ​​interesting to ​​know the ​​industry ​​practice for ​​treatment of ​​seawater used ​​for oil well ​​injection. ​​ Can anyone ​​share with me ...

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Which sand's size to use for sand filter?

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to size the sand filter we need to know which sand's size. how to choose it and what it depends ?

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How to prevent water mains from freezing in the snow zones in water supply projects?

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How to prevent water mains from freezing in the snow zones in water supply projects?

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I have been ​looking into ​the design ​of a water ​supply system ​for approx. ​8500 households ​in the ​Himalayas of ​Nepal. The ​total ​transmission ...

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How to increase concentrat flux?

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I'm a student on water engineering I'm designing a plant and the concentrate flux is less than the minimum how I can increase it without changing the permeat ...

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Foam formation

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Foam formation

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I observed this foam formation at the bypass chamber from the inlet of our sewage treatment plant. What causes this type of foam formation and is it ...

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Sulphur removal

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We experience problems with deposits of elementary sulfur in our waste water treatment. For years we have used sulfuric acid for pH balancing of our influent ...

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Floating Sludge

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A plant recently experience shock loading event which resulted in the MLSS having settability issue.   The sludge is constantly floating ( scums formation) ...

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