Technical discussion: What to do if phosphorus levels are high in circulating water
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This post was last edited by hesonchang214 on 2009-7-11 at 20:16. Dear friends from Haichuan, our company is located at Xingsheng Chemical Factory in Qitaihe City, Heilongjiang Province. We use groundwater for circulating water, which contains high levels of iron and manganese, as well as high levels of calcium and magnesium ions. This causes many problems for the boilers and the circulating water system. If there are anyone with expertise in water treatment, please feel free to contact me at czd-0010@163.com. You are welcome to visit our factory for an on-site inspection. Thank you!
Check what the cause is; if it’s a problem with the chemicals added, then drain the water first. It’s also possible that substances leaking from the device are interfering with the testing of phosphorus levels
First of all, iron and manganese must be removed, otherwise it will exacerbate corrosion in the circulating water system； In fact, when groundwater is used as make-up water, its high calcium and magnesium levels indicate that the concentration ratio cannot be too high ； Again, if the total phosphorus level is too high, it indicates that the amount of waste discharged is insufficient ；
The groundwater has a high salt content. Is a high phosphorus content due to an excessive amount of scale and corrosion inhibitors? Or the wastewater discharge is too low, due to an excessively high concentration ratio of the circulating water.
If the water quality is poor, choose a reputable manufacturer of chemicals – never take it lightly.
Just change the medication; there’s no need to look at anything else
Controlling the concentration ratio is very important! ! ! ! ! ! ! ! ! ! !
The phosphorus content in the water is high; you can check the phosphorus level in the make-up water. If its phosphorus content isn’t high, then it’s definitely because you’ve added too much corrosion and scale inhibitor. You can also measure the phosphorus content in the chemical. Next, check for any leaks in the system.
Factors to consider: 1. The issue of concentration and scaling – it needs to be properly controlled. 2. The use of chemicals – their dosage and combination must be well managed. 3. Water replenishment – proper pre-treatment is necessary for this process. 4. System-related issues – various aspects need to be examined
Suggestions: 1. Test whether the make-up water contains phosphorus; if it does, a new water treatment plan is required. 2. If the water added for replenishment does not contain phosphorus, adjust the amount of wastewater discharged and control the concentration of chemicals in the system; otherwise, if the total phosphorus level remains above the specified limit for an extended period, calcium phosphate scale may form, which would be difficult to remove. 3. Your company is in the coal chemical industry, right? I assume there won’t be any phosphorus leaking into the system.
The water source should be controlled, and an osmosis system should be installed.
Total hardness, pH value, turbidity, chloride concentration, concentration ratio, total phosphorus, conductivity, iron. April 15: 360, 8.76, 20.46, 34.04, 3.075, 7.43, 1230, 1.48. April 16: 364, 8.78, 19.42, 37.58, 3.125, 6.25, 1250, 1.26. April 17: 380, 8.81, 20.87, 36.88, 2.91, 7.19, 1250, 1.33. April 18: 370, 8.77, 17.96, 37.58, 2.75, 5.54, 1210, 1.18. April 19: 360.28, 8.85, 19.21, 37.58, 2.9, 4.69, 1220, 1.4. April 20: 370, 8.87, 16.71, 39.01, 2.95, 2.64, 1390, 1.25. April 21: 380, 8.86, 19.83, 32.62, 3.29, 4.83, 1350, 1.2. Dear friends at HaiChuan, does anyone know the parameters related to circulating water? Could you please help me check the current condition of the circulating water in my facility and advise on what actions need to be taken? Thank you. Our company is engaged in benzene processing
I learned a trick: conduct comprehensive analysis and use the elimination method to deal with it
It seems that there is less drainage, or the concentration ratio is too high! Of course, the concentration factor of the agent is very important
13# Xingsheng Laboratory: I can’t understand these data; please re-edit them.
13# Xingsheng Laboratory: Looking at the analyst’s report, the main reason for your issue is likely that too much reagent was used.
Looking at your test report, the concentration ratio is a bit high; generally, an optimal concentration ratio for circulating water is 2-3. Additionally, your total phosphorus level is also too high – it’s likely due to an excessive amount of chemicals being used!
It must be caused by raw water P! It seems there’s no issue with leakage; was a P-containing agent added? ? ? I don’t understand, please help!
According to the report, the quality of your raw water is not good; it has a structural water quality profile and a high turbidity level. It is necessary to increase the amount of wastewater discharged and to reduce the concentration ratio accordingly. If you want to achieve a concentration ratio of around 3, it is necessary to carry out proper pretreatment of the raw water; if the phosphorus content is high, the amount of chemicals used can be reduced accordingly.