Why does the well water turn red and yellow after being pumped for a period of time? What should I do if the well water turns yellow?
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Update time : 2022-02-16 14:25:03
Well water turns yellow and red, this phenomenon can be said that most people have encountered it, and this problem has also caused a lot of trouble for everyone, because using this kind of laundry, the clothes will turn yellow, and even worse, it will turn gray and become Broken, boiled and drunk with such a water source, there will be a lot of sediment, etc. So what is the reason for the yellowing of the well water? What should I do if the well water turns yellow?
Yellowing of well water has this different phenomenon. One is when the well water is pumped up. The water quality is very clear at first, but it turns yellow or red after standing for a while. . Now let’s explain the reasons separately for these two phenomena: the reason for the first type of phenomenon is that the well water contains divalent iron ions or manganese ions. When ferric ions are present, the color of the water turns yellow, but if the manganese exceeds the standard, it is the same reason, but the color of manganese ions is red after oxidation.
The reason for the second type of phenomenon has multiple possibilities. It may be that the water contains more fine yellow mud. This phenomenon is easy to distinguish, because the yellow mud belongs to suspended solids and the particles are relatively large. After standing for a while It settles down easily. Another possibility is that the pipes used in the wells are made of iron. When the pipes are used for a long time, the pipes are oxidized, and the oxides attached to the pipes are taken out when the water is pumped.
What should I do if the well water turns yellow? As drinking water, if iron and manganese exceed the standard, it is very harmful to the human body. The content of iron in the national drinking water hygiene standard should be less than 0.3mg/L, and the content of manganese should be less than 0.1mg/L. Standard, corresponding measures should be taken to deal with it to make its content meet the standard of domestic water.
working principle:
1. The well pump pumps groundwater into the aeration unit.
2. The aeration device uses the residual pressure of the well pump to mix the oxygen in the air with the well water containing iron and manganese ions.
3. The aerated well water passes through the manganese sand and quartz sand filter layers in the filter, (1) the physical adsorption and retention of the manganese sand and the quartz sand, and (2) the autocatalytic oxidation of the iron oxide film on the surface of the manganese sand and the quartz sand reaction, ③ biological oxidation of iron bacteria and manganese bacteria in the filter layer.) Through the joint action of the above three forms, the iron and manganese ions in the well water are solidified in the filter layer to complete the filtration process.
4. The filtered water enters the water supply system. 5. After the trapped iron and manganese in the filter layer reach the designed capacity, the backwashing system starts automatically, and the trapped iron and manganese oxides are discharged out of the filter through the shunt pipe. Treated clean water: iron content ≤ 0.3mg/L, manganese content ≤ 0.1mg/L, which basically solves the problem of how well water turns yellow.
Process Description
1. Multi-media filter This system is for. It mainly removes sediment, rust, manganese, red worms, some metal substances, various suspended solids and other solid substances in the water, and at the same time reduces the turbidity and chromaticity of the raw water. It can filter out particles, algae and other visible substances brought by the raw water.
Multi-media filter is an advanced micro-flocculation filtration method. The multi-media filter provided by our company contains multi-layer filter media with different materials, which can completely filter out impurities that are insoluble in water, and ensure that the SDI value is not greater than 4. It can better remove suspended solids or insoluble particles (oxides, turbidity, particulate matter, etc.) in water, with low cost, convenient operation and maintenance, and convenient management, especially in reducing turbidity and pollution index in raw water. with great effect.
The system is equipped with a multi-media filter with a specification of Φ760*1820. The filter is filled with refined quartz sand and anthracite with good gradation. Under normal working conditions, the normal flow rate is 8-15m/h. Multi-media filter The backwash cycle time is 16-48 hours. Backwashing uses pressure parameter equipment to control the backwashing cycle. When the pressure difference between the inlet and outlet jellyfish pipes reaches 0.7kg/cm2, the operation is stopped for backwashing, and the multi-way valve controller is used to carry out the sequential backwashing and forward washing process of the filter. Activated carbon can also remove 63%-86% of colloidal substances in water; about 50% of iron; and 47%-60% of organic matter.
If you encounter the problem of what to do if the well water turns yellow in your life and production, you can contact us directly. Guangdong VOLARDDA Water Purification Equipment CO.,Ltd. will serve you sincerely.
