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Deterioration Of Ion Exchange Equipment Solutions To The Water by big tree
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Deterioration Of Ion Exchange Equipment Solutions To The Water by BIG TREE
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| Article Posted: 09/27/2010 |
| Article Views: 20 |
| Articles Written: 1033 - MORE ARTICLES FROM THIS AUTHOR |
| Word Count: 632 |
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Deterioration Of Ion Exchange Equipment Solutions To The Water |
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Business,Business News,Business Opportunities
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Water Industry Network HC : Water quality is a measure of chemical demineralizing equipment operating conditions of key indicators. Deterioration of water quality is running cycle intermediate, in addition to the conductivity of salt water and SiO2 was significantly higher than debugging a result, regardless of whether water quality compliance, can be considered to have taken place in water quality deterioration.
When desalted water conductivity or SiO2 contents were significantly higher, in order to determine the cause of the issue requires determination of pH, except salt water. According to the results measured to determine the water quality deterioration desalination equipment failure, Find the cause of the problem.
Desalination system in the following situation is typical:
1, weak sun beds: (1) the provisions of the water alkalinity values higher than leakage. This is due to improper recycling, renewable agent should be the theoretical exchange capacity of 110%, such as the use of tandem regeneration, regeneration of strong acid resin shall check the adequacy of the acid regeneration of weak acid resin.
(2) water hardness higher than the specified value. Such as sulfuric acid regeneration, may be precipitated calcium sulfate, calcium sulfate then gradually hydrolyzed to produce calcium hard, so when using sulfuric acid regeneration, to adopt the sub-step regeneration method, and the implementation of the first low-concentration, high flow, high after concentration, low flow rate means regeneration. Such as the regeneration series, should check the regeneration of waste acid resin Yang has diluted.
2, Strong Acid Cation: (1) water leakage in excess of the value of sodium. This is not quite happen, and if so, should check the regeneration step, sometimes sun beds in series with mixed bed renewable waste recycled, this time to pay attention to the first mixed-bed waste to discard 15-30%, otherwise there will be sodium ions into Yang bed, in addition, mixed bed of acid waste liquid should be checked for adequacy.
(2) hardness of the water leakage. If sulfuric acid regeneration, then precipitated as calcium sulfate, check the acid concentration (the sample analysis from the system) and the regeneration flow rate, water content in excess of calcium ions in 50% of the total, shall be graded regeneration, the initial concentration should not more than 2%, flow rate of 12 liters / hour / L resin.
3, weak base anion bed: (1) increased water leakage of mineral acid. This problem can be divided into the real increase in leakage of mineral acid and mineral acid leakage increased representation.
A. real increase in leakage of mineral acid. General water conductivity should be 50 s/cm or less, such as the lack of regeneration, the conductivity curve will rise slowly, that is, water acidity will gradually increase. Determination of pH value
recommended to check the veracity of mineral acid leakage increases, but not on the surface increased.
Finally, if the weak base resin is recycled in series, then the regeneration of strong base resin of alkali is sufficient, it shall be the theoretical exchange capacity of 120-130%.
B. appearance of increased leakage of mineral acid. Weak base resin is a mineral acid neutralizer, the real weak base resin (90% or more of the weak base) does not decompose the neutral salts such as sodium chloride or sodium sulfate, the sun beds to be operating normally, the water sodium leakage is small, and must maintain a certain pH. If pH is above 3.5, it is not completely removed Cation cation, these neutral salt flows through the weak base anion bed will increase the conductivity. I am China Manufacturers writer, reports some information about reliable steam cleaner , hoover steam cleaners.
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