In the printing industry, ink printing is widely used because of its environmental protection characteristics, but the treatment of ink wastewater has become a big problem. Ink wastewater contains a large number of pigments, resins, auxiliaries and other components, with high chroma, if the direct discharge will cause serious visual pollution and potential harm to the water environment. At this time, ink wastewater decolorizing agent has become a powerful weapon to solve this dilemma.
The decolorization principle of ink wastewater decolorization agent is mainly through the combination of chemical reaction and physical adsorption. On the one hand, it can chemically react with colored substances in wastewater, destroy the chromophore group of pigment molecules, and make it lose its color rendering ability; On the other hand, the special structure of the decolorizer can adsorb the tiny pigment particles and colloidal substances in the wastewater, forming a large floc precipitation, so as to achieve the purpose of removing color.
This decolorizing agent has many advantages. Its decolorization effect is remarkable, can quickly reduce the color of ink wastewater, make the treated wastewater color significantly lightened, to meet the requirements of environmental protection discharge. It has good adaptability and can effectively play a role in different kinds of ink formula, different concentrations of wastewater and complex water quality conditions. Moreover, the operation process is relatively simple, only according to a certain proportion of the decolorizing agent is added to the ink waste water, after appropriate stirring and precipitation time, you can achieve decolorization and solid-liquid separation.
In the actual application scenario, enterprises must first test the water quality of ink wastewater, analyze its composition and chroma and other indicators, and then determine the exact amount of decolorizing agent and the best treatment process parameters according to the test results. For example, control the mixing speed and time to ensure that the decolorizing agent and the wastewater are fully mixed, and pay attention to the optimization of the conditions of the precipitation link to improve the settling efficiency of the floc.
The importance of ink wastewater decolorizing agent is becoming more and more prominent. It not only helps printing companies reduce environmental risks, avoid penalties due to excessive wastewater discharge, but also creates conditions for the recycling of water resources, promotes the development of the entire printing industry in the direction of green, environmental protection and circulation, and is the key technical guarantee for achieving harmonious coexistence between ink printing and the ecological environment.
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