Water purified agent for aeration, sterilizing of aquatic product culture and equipment thereof
An aquaculture and water purifying agent technology, which is applied in the fields of oxidized water/sewage treatment, added material water/sewage treatment, sterilization/microdynamic water/sewage treatment, etc., can solve the problem of high cost of mechanical oxygenation, consumption of dissolved oxygen, It can solve problems such as poor water quality, and achieve the effects of solving hypoxia and water quality deterioration, controlling the rate of oxygen release, and improving water purification efficiency.
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[0018] The preparation methods reported in the literature are all based on reagent raw materials, without considering the actual industrial production background, especially industrial grade sodium chloride and sodium sulfate raw materials often contain a small amount of metal elements such as iron, copper, manganese, and at the same time, the production process It is also unavoidable to mix some metal elements in the product, which will cause the decomposition of hydrogen peroxide and the product, reduce the yield and the content of active oxygen in the product.
[0019] In the aquaculture oxygen-increasing, disinfecting water purifying agent and preparation method thereof provided by the present invention, 0.01 to 0.05 times the weight of hydrogen peroxide is added during the synthesis process of the ternary adduct of sodium sulfate, hydrogen peroxide and sodium chloride It can avoid the decomposition of hydrogen peroxide and products caused by metal ions such as iron, copper...
Embodiment 1
[0023] At room temperature, add 250ml of aqueous hydrogen peroxide solution with a concentration of 30% by mass into the reaction flask with stirring, and add 0.41g of sodium dihydrogen pyrophosphate, then add 337g of industrial anhydrous sodium sulfate, and stir to make the sodium sulfate fully Dissolve, then slowly add 68g of sodium chloride under stirring, react for 1h; the reaction mixture is crystallized at 0°C, filtered, the mother liquor is partially circulated, and the filter cake is dried to obtain 330g of sodium sulfate, hydrogen peroxide and sodium chloride ternary addition things.
[0024] Add the ternary adduct of sodium sulfate, hydrogen peroxide and sodium chloride to the rotating drum, control the temperature inside the drum to 100°C, make 5% aqueous solution of 3.3g chitosan, and spray it on the moving sulfuric acid through the nozzle On the ternary adduct of sodium, hydrogen peroxide and sodium chloride, after the water is evaporated, an aquaculture oxygenati...
Embodiment 2
[0026] At room temperature, add 250ml of aqueous hydrogen peroxide solution with a concentration of 30% by mass into a stirred reaction flask, add 4.1g of ethylenediaminetetraacetic acid diammonium, then add 638g of industrial anhydrous sodium sulfate, and stir to make sodium sulfate Fully dissolve, then slowly add 34g of sodium chloride under stirring, react for 1h, cool and crystallize, filter, partly circulate the mother liquor, and dry the filter cake to obtain 295g of ternary adduct of sodium sulfate, hydrogen peroxide and sodium chloride.
[0027] Add the ternary adduct of sodium sulfate, hydrogen peroxide and sodium chloride into the fluidized bed to make it in a fluidized state; make 0.05% aqueous solution of 2.95g chitosan, atomize it in the moving sulfuric acid through the nozzle Sodium, hydrogen peroxide and sodium chloride ternary adducts; after the water evaporates, an aquaculture oxygenation and disinfection water purifier product with an active oxygen content of ...
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