Active chlorine dioxide disinfectant production method and apparatus

Abstract

The invention discloses an active chlorine dioxide disinfectant production method. The active chlorine dioxide disinfectant production method comprises the following steps: (1) pumping high-purity ClO2 gas prepared by a high-purity chlorine dioxide generator into a middle part and an upper part of an absorption trough under the negative pressure, performing the forced bubbling absorption, preparing a high-concentration active ClO2 solution, and directly sending a finished product into an application field by virtue of a metering pump; (2) absorbing, by the absorption trough, tail gas, enabling circulating liquid of a circulating trough to pass through a circulating pump, pumping by virtue of a water injector, re-introducing the tail gas absorbed by the circulating trough into a tail gas treatment trough, and regularly discharging the treated neutralization solution; and (3) enabling the circulating liquid of the circulating trough to overflow into the absorption trough, and supplementing the circulating liquid of the circulating trough by virtue of tap water. The invention also discloses an apparatus for the method of the invention. By adopting the method, the investment is reduced, the absorption rate is increased, and the effect for absorbing ClO2 is ideal.

Description

technical field [0001] The invention relates to the field of disinfection, in particular to a production method and device of an active chlorine dioxide disinfectant. Background technique [0002] ClO 2 As a new generation of broad-spectrum powerful bactericidal disinfectant recognized internationally, it has been widely used in the disinfection treatment of drinking water, circulating water, sewage, papermaking, air disinfection and civilian products. Due to ClO 2 Rapid sterilization, good effect, no residue, no side effects, so more and more people's approval. [0003] According to ClO 2 Physicochemical properties, its gas is a gas at normal temperature and pressure, and due to its poor stability, resulting in ClO 2 The disadvantages of being unable to store and transport must be prepared and applied now, which brings some inconveniences to the application. With the continuous research and development of preparation technology, and according to the needs of the domest...

AI Technical Summary

Problems solved by technology

The ClO 2 Although the disinfectant solves the problem of storage and transportation, when it is applied, it needs to be activated with a certain concentration of acid to make it re-release ClO 2 Gas, and then sterilize and disinfect, which will inevitably increase the cost of disinfection and the cumbersome operation. Therefore, it is unacceptable to many customers.

On this basis, some manufacturers began to try to produce active ClO 2 Disinfectants, generally use a water injector to absorb ClO at one time 2 The method of gas, due to the poor absorption effect, as a result, the content of the disinfectant can only be a low concentration, fluctuating between 400-800ppm, it is difficult to prepare a high-concentration active disinfectant above 1000ppm, and it is also inconvenient for some applications. Unable to meet customer demand for high-concentration active disinfectants of 2000ppm or above

Some manufacturers also try to use sodium chlorite to prepare a solution, and then activate it to produce a high-concentration active solution. Although this solves the concentration problem, the inherent quality and cost of the product are not ideal, so customers cannot get it. recognition of

[0004] Prior to this, higher concentrations of active ClO 2 Solution production has only been used in industrial pulp bleaching, however, this higher concentration of active ClO 2 The solution is on an industrial generating device and needs to be absorbed under refrigerated water. For this kind of preparation method with large output and high cost, most customers are not suitable and cannot accept it.

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