42results about How to "Short decolorization time" patented technology

The invention discloses a decolorizing treatment device for paulownia wood. The decolorizing treatment system is characterized in that a water-cycling system is formed by a soaking treatment pool, a sewage pool communicated with the soaking treatment pool and a purifying pool communicated with the sewage pool, wherein a heat exchanger communicated with a solar heater is arranged in the soaking treatment pool, and the soaking treatment pool is communicated with the purifying pool through a water feed pipe; the water feed pipe is connected with a pump body for pumping water in the purifying pool into the soaking treatment pool; the sewage pool is communicated with the purifying pool through a purifying pipe; the wall of the soaking treatment pool is an interlayer wall with a thermal insulation layer; and solar hot water is pumped to the heat exchanger through the pump body connected to a solar water pipe, and heat of the hot water is radiated to the soaking treatment pool through the heat exchanger. According to the decolorizing treatment system, solar heating is utilized, therefore, the decolorizing treatment system has the advantages of energy saving, environmental protection, fuel saving, simple structure and convenience for operation; the decolorizing time of the paulownia wood is short, soaking treatment can be finished in seven days or even a shorter period of time, the effect is good, and the working efficiency is high; and an ideal decolorizing effect can be guaranteed, and energy and emission can be reduced so as to avoid environmental pollution.

A liniment for removing the fluorine spots from tooth includes two products. The liniment A is prepared from 7 Chinese-medicinal materials including dahurian angelica root, as arum herb, Chuan-xiong rhizome, fresh tangerine peel, etc through proportional mixing, immersing in 2-8 % solution of hydrochloric acid and filtering. The liniment B is prepared from pumice through grinding, immersing in solution of sodium fluoride, and filtering. Its advantages are high speed, no damage to tooth enamel, and 100% of cure rate.

The invention discloses a Fenton-like catalyst Ag for rapidly degrading malachite green 2 MoO 4 / Ag 2 O material, preparation method and application thereof. Using disodium hydrogen phosphate, sodium molybdate and silver nitrate as raw materials, using chemical precipitation method, synergistic hydrothermal method to synthesize a new type of Ag by self-doping silver oxide 2 MoO 4 / Ag 2 O-type Fenton catalyst, wherein the optimum pH of the synthesis reaction, the feeding ratio of sodium molybdate and silver nitrate, and the conditions of the hydrothermal reaction are determined; the catalyst is combined with H 2 O 2 After mixing, it can be applied to efficiently degrade malachite green in a suitable pH environment. The study found that Ag 2 MoO 4 / Ag 2 O‑H 2 O 2 The decolorization rate of malachite green by the heterogeneous Fenton-like composite system is as high as 99.7% within 6 minutes. The preparation method of the photocatalyst of the invention is simple, easy to operate, has the advantages of low toxicity, low price, etc., and has very high research value in the field of degrading organic dyes.

A method for decolorizing sapindus saponin, comprising the following steps: (1) weighing dried sapindus saponin powder, adding 0.6 times the quality of deionized water, stirring at room temperature to completely dissolve it; (2) by Metal complex hydrides and acidic sulfites are mixed in a mass ratio of 4:3 to 4:36 to prepare a composite decolorizer; (3) after adjusting the pH of the sapindus saponin solution in step (1) to 4.5-6.5 , add the compound decolorizing agent prepared in step (2), the addition amount is weighed according to the mass ratio of Sapindus sapinsin powder and compound decolorizing agent 100:1~100:5, and reduce and decolorize at a temperature of 20°C-70°C for 30 ‑80min; (4) Spray-dry the Sapindus Sapindus total saponins solution after decolorization in step (3) to obtain decolorized saponin powder. The composite decolorizing agent of the present invention has a synergistic effect, less decolorizing agent dosage, good decolorizing effect, short decolorizing time, low production cost, less impact of waste liquid on the environment, less target product loss in the decolorizing process, high efficiency, time saving, The advantages of environmental protection.

The invention discloses a tea saponin bio-enzyme decolorization process, and its purpose is to solve the existing problems in the prior art, which may cause harm to the operator and pollute the environment under strong alkali conditions, or cause tea soap decolorization due to adsorption. The problem of great loss of prime and difficult recovery. The invention includes co-immobilization of laccase and glucose oxidase, preparation of crude tea saponin solution, decolorization of crude tea saponin, recovery of tea saponin and the like. The invention has mild reaction conditions, short decolorization time and remarkable decolorization effect, and the immobilized enzyme can be recovered and reused, the loss rate of the tea saponin is low, and the tea saponin powder with low color can be recovered and obtained only by spray drying, and the process is simple.