Hangzhou Hongyan Pigment Chemical Co.,Ltd
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How Is The Basic Application Of Organic Pigments Reflected?

  How is the basic application of organic pigments reflected?

  Organic pigments, also known as HR02 yellow red light yellow, shade than organic pigments 13 more red, tinting power is also stronger. Organic pigments in the polyolefin plastic color strength is very strong, with 1% titanium dioxide preparation of 1/3 standard depth of high-density polyethylene products only 0.08% of the pigment. The organic pigment 83 also has good light fastness. 1/3 standard depth of light fastness products for the 8, 1/25 standard concentration of light fastness up to 7 products. Organic pigment HR02 has good solvent resistance. Even in low concentrations in PVC will not migrate. Organic pigments 83 are often used in the form of pigment preparations in poly-polyolefin plastics. Organic pigments 83 Chemical name Benzidine, due to the thermal degradation potential, gives the benzidine series of pigments heat-resistant temperature of 210 degrees C (refer to the relevant safety data), even if the pigment hue at higher temperatures remain stable, still Follow this side.

  Production of organic pigments containing organic compounds and acid-containing acid sodium acetate, organic pigment commonly used biochemical oxygen demand or chemical oxygen demand of pollutants in the comprehensive content. With the general metal ion precipitation method is not purified, the usual method of governance is the combination of sedimentation and biochemical treatment of the two methods. Agglomeration and sedimentation commonly used coagulant is aluminum sulfate, ferrous sulfate, ferric chloride, etc., when necessary, can add some coagulants such as lime, water glass, ammonium polyacrylate, etc. to enhance the effect of agglomeration settlement.

  The main method of reducing BOD and COD in organic wastewater is biochemical treatment, which is the efficient decomposition of organic compounds using aerobic or anaerobic microorganisms. Specific treatment methods can be divided into activated sludge, organic pigment biofilm and biological pond three categories. The treatment efficiency of the activated sludge process is high. The biofilm method utilizes the microorganisms attached to the solid surface to treat the organic matter. Some of the equipment occupies a small area, while the biological pond uses natural large numbers of microorganisms to transform the organic matter and dilutes the BOD The role of running less, but a large area. So often with several treatment methods combined treatment, combined with aeration tank and biofilter series treatment, if necessary, organic pigment by adding coagulation sedimentation and activated carbon adsorption and other methods for the depth of treatment, and strive to achieve the required emission standards.

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