Color coating production, mainly from the production of waste water pipeline section and coil Coil surface preparation. Its governance flow chart: chromium-containing wastewater (including wash water) → reduction treatment serum neutralization treatment → → → sedimentation skimmed wastewater discharge (including wash water) → → buried waste water separator 42, color coated production process containing Cr6 + wastewater treatment program? Wastewater containing Cr6 +, while its reduction treatment, reducing the amount of which is calculated Cr6 + content (g / m3) = Cr6 + titration points × 0.1733g / m3 reducing the amount (kg) = Cr6 + content × × bath volume ratio coefficient which is the ratio coefficient: 3.7 sulfite; sodium bisulfite 3; ferrous sulfate 8.8 Incorporation: derived by calculating the amount of reducing agent, appropriate to add some more. 43, color coated production skim wastewater treatment options? Skimmed wastewater must be oil-water separation, and its methods are: ① acidification method: using hydrochloric acid or sulfuric acid as a separating agent, the pH was adjusted to 2.0 caitu natural exposure test, a) when using color-coated in an industrial environment, should fully take into account the industrial fallout embedded coating factors. The results showed that, polyvinylidene fluoride products with the best performance in an industrial environment. The density and improved chemical stability of the coating color coated product is critical in industrial environments to improve service life. 2) When using color-coated in a marine environment Binzhou Color volume, should be fully taken into account the impact of salt spray atmosphere. The results showed that, polyvinylidene fluoride products with the best performance in the marine environment. 3) selection of color-coated products, should take into account the color of color-coated for durability effects, organic pigments are generally more durable products, poor product inorganic pigments, and silver pigments must consider the ability of its acid . 4) In general, color coated with a good acid rain atmosphere ability Color volume manufacturer, is harsh environment ideal building material. 5) in China, Hainan test point is the best one can examine the location of color-coated durability, it also has the strongest ultraviolet radiation and corrosive atmosphere harsh ocean, different colors can be objectively evaluated in a short period of time , color-coated varieties resistance to environmental aging ability. Volume Color White Color volume _ _ Zhoukou City Jinhong Run steel provided by Boxing Xingfu Town 金宏润 Steel Industry and Trade Ministry. Boxing Xingfu Town 金宏润 Steel Industry and Trade Ministry (www.bxjhr.com) (www.bxjhr.com) strong, credible, Shandong Binzhou board (with) wood industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Jinhong Run steel and you hand into the brilliant, for a better future! You can also access (www.bxjhr.com/supply_details_45898085.html), for more information about the company.