The circulating water system uses reclaimed water as make-up water; the quality of this reclaimed water often has a pH below 7 and very low alkalinity, with a concentration ratio of 2.5 for the circulating water
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Our company installs circulating water systems for coking plants, with make-up water coming from reclaimed water; its pH is often below 7, around 6. Several. The design concentration ratio for such circulating water systems is 2.5 times. Could this condition cause corrosion in the system?
This post was last edited by CoCo070563 on 2015-8-22 at 10:37. I think it’s best to ask the device manufacturer about such things. The equipment is certainly capable of withstanding corrosion from weak acids or weak bases, but exactly how much it can tolerate depends only on the manufacturer.
Thank you, I’m a beginner and just arrived!
Corrosion of the system occurs around 6 o’clock or so. The water used in coking plants is generally used for quenching coke
The low-temperature water in this branch plant is often black; sediment forms over time, and it has an unpleasant odor. Recently there was a leak in the final cooler – is it possible to determine whether other substances have also leaked?
When replenishing reclaimed water, the pH value should be adjusted appropriately by adding a small amount of alkaline substance, so as to maintain an appropriate alkalinity level. It is not possible to simply add water without considering the normal conditions of the circulating water; it is necessary to monitor this process and adjust the water quality accordingly. In circulating water treatment systems, there are measures for adding acid and alkali, as well as measures for adding other auxiliary water treatment agents.