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A technology for drinking water and influent water, which is applied in the fields of water pollutants, water/sewage treatment, and water treatment parameter control. Improve hygiene, ensure safe drinking water, and speed up regeneration
Inactive Publication Date: 2018-04-27
宁波市河清源技术转移服务有限公司
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Abstract
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Problems solved by technology
[0004] The purpose of the present invention is to provide a drinking water defluorination device, to solve the above-mentioned background technology when the aluminum oxide fails to stop the water in time so that the water that has not been defluorinated pollutes the purified water, and the regeneration speed of the aluminum oxide is relatively slow. Slow, unable to remove suspended solids in water well
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Embodiment 1
[0028] The nanometer defluoridation filter material, the preparation method comprises the following steps:
[0029] Step 1. Dissolve 1g of Al-PAM powder in 100ml of deionized water to obtain a flocculant solution with a mass fraction of 1%, and dissolve it with 1% NaOH to adjust the pH value to 10;
[0030] Step 2. Add formaldehyde to the above solution, react in a constant temperature water bath at 50°C for 1h, then slowly add diethylenetriamine (DETA) dropwise, and react for 3h, wherein the molar ratio of formaldehyde, DETA and AM is 3:2:1, Obtain a milky white solution, which is the intermediate graft product Al-PAM-DETA;
[0031] Step 3. Reduce the milky white solution obtained above to 25°C, add NaOH, add carbon disulfide dropwise at a rate of 0.1ml / min for 4 hours, raise the temperature to 55°C, and react for 2 hours, where CS 2 , The molar ratio of DETA and NaOH is 3:1:3; the product solution is obtained;
[0032] Step 4: drop the product solution into acetone for ext...
Embodiment 2
[0039] Step 2. Add formaldehyde to the above solution, react in a constant temperature water bath at 50°C for 1h, then slowly add diethylenetriamine (DETA) dropwise, and react for 3h, wherein the molar ratio of formaldehyde, DETA and AM is 3:1:1, The milky white solution was obtained, which was the intermediate graft product Al-PAM-DETA; the rest of the steps were the same as in Example 1.
Embodiment 3
[0041] Step 2. Add formaldehyde to the above solution, react in a constant temperature water bath at 50°C for 1h, then slowly add diethylenetriamine (DETA) dropwise, and react for 3h, wherein the molar ratio of formaldehyde, DETA and AM is 1:2:1, The milky white solution was obtained, which was the intermediate graft product Al-PAM-DETA; the rest of the steps were the same as in Example 1.
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Abstract
The invention discloses a drinking water defluorination device, which comprises a defluorination tank, the bottom end of the defluorination tank is provided with a fixed foot, one side of the defluorination tank is provided with a water outlet pipe, and the defluorination tank is far away from the water outlet One side of the pipeline is provided with a water inlet pipe, the middle part of the water inlet pipe and the water outlet pipe is provided with a box door, the inside of the defluoridation tank is provided with a liquid storage tank, and one side of the liquid storage tank is provided with a pumping A water pump, and the water pump is fixedly connected to the water outlet pipeline through pipelines, an activated carbon filter box is arranged above the liquid storage tank, and the liquid storage tank and the activated carbon filter box are fixedly connected through pipelines.
Description
technical field [0001] The invention belongs to the technical field of drinking water devices, and in particular relates to a drinking water defluorination device. Background technique [0002] When the raw water flows through the defluoridation device, the core filter layer inside the defluoridation device - the natural mineral filter material, the water is in contact with the natural mineral filter material in the defluoridation device, and through physical and chemical reactions - adsorption, ions Exchange, the fluorine ions in the water are adsorbed and exchanged by the filter material, and the fluoride ions in the water are removed, so that the fluorine content in the water reaches the national sanitary standard for drinking water. [0003] However, the performance of drinking water defluorination devices on the market is not good. When the alumina fails to stop the water in time, the water that has not been defluorinated will pollute the purified water. The regeneratio...
Claims
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Application Information
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