What compounds do you use to coagulate colloidal particles in wastewater treatment?
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What is Chah Felman?
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What should be done to prevent water hammer in water transmission lines and pumping stations?
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Where does Ardabil city's drinking water supply come from?
What are its characteristics, including its hardness and taste, its color and texture?
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What are the microbial inhibitors in wastewater treatment and what is their mechanism of action?
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Why are the connection standards not followed in the connection of branches, standards such as the depth of the pipes - bedding of the pipes, use of soft soil and bedding under the slabs, etc ؟
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Are double-walled sewer pipes and fittings used in your province?
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Please explain since August 2018, why the water pressure in Sablan township, phase two, Salman Farsi Street, 10th alley, third floor, is very weak and we cannot use the water heater under any circumstances?
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Explain the method of manual chlorination of water tanks and the amount of remaining chlorine?
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