A kind of purified water for cleaning Panax notoginseng powder and its production process

Abstract

The application relates to the field of purified water, and specifically discloses a purified water for cleaning Panax notoginseng powder and a production process thereof. A production technique for cleaning the purified water of Panax notoginseng powder, comprising the following steps: S1. under the protection of inert gas, gac, 3-aminobenzoic acid methyl ester, water and hydrochloric acid are stirred and mixed to obtain a reaction solution, and the reaction solution is sent to the reaction solution. Add the peroxide oxidant solution dropwise, then heat and stir the reaction, filter and dry after the reaction to obtain modified activated carbon; S2. Filter the tap water through modified activated carbon and ultraviolet sterilization to obtain pretreated water; S3. The pretreated water is degassed through the primary reverse osmosis membrane to obtain purified water; S4. The purified water is passed through the secondary reverse osmosis membrane to obtain purified water; the present application has the advantage of improving the effect of removing heavy metals in the pretreatment step.

Description

technical field [0001] The present application relates to the field of purified water, and more particularly, to a purified water used for cleaning Panax notoginseng powder and a production process thereof. Background technique [0002] Panax notoginseng powder is a powder made from Panax notoginseng. It is usually obtained from the main root, notches, tendons and fibrous roots of Panax notoginseng. It contains saponins and flavonoids and other medicinal components. When used as medicine, Panax notoginseng powder can stop bleeding, activate blood and reduce swelling. It has the effect of relieving pain, so Panax notoginseng powder is often used as a medicine or health care product. [0003] Since the origin of Panax notoginseng is rich in minerals, various heavy metals will be brought into the environment during the mining process, resulting in high content of heavy metals such as Cd, Pb, Hg in the soil, which makes Panax notoginseng rich in the process of planting. The col...

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Problems solved by technology

[0005] Because the pore size of the reverse osmosis membrane is extremely small and the filtration effect is good, generally speaking, the impurity content in the water after passing through the reverse osmosis membrane is low, but as shown in the article "Research on the Causes of Membrane Fouling in Reverse Osmosis System and Research on Cleaning Methods" , during the use of reverse osmosis membrane, suspended particles, colloids, bacteria, organic pollutants and heavy metals will be adsorbed on the surface of the membrane, which will affect the flux and desalination rate of the reverse osmosis membrane. Therefore, in order to improve the use effect and Service life, usually set a pretreatment step before reverse osmosis membrane filtration, the pretreatment step usually adopts porous media material filtration and ultraviolet sterilization to remove suspended particles, bacteria and some organic pollutants in the water body, but the removal effect on heavy metals Weaker, resulting in more heavy metals after pretreatment, which will affect the filtration effect of reverse osmosis membrane

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