Wastewater treatment is particularly important in our current production and life. my country has also increased its efforts to manage environmental protection, and factories also have their own sewage treatment systems. Many industrial wastewaters, especially chemical wastewaters, have very different types and concentrations of pollutants. Even for a single industrial wastewater, such as printing and dyeing wastewater, electroplating wastewater, papermaking wastewater, leathermaking wastewater, etc., the composition and category of pollutants in industrial wastewater may not be similar, and the same technical route cannot be completely applied. The purpose of the feasibility experiment of the technical route is to verify the feasibility of the designed technical route through a small-scale process route experiment, provide the necessary parameters for process design, foresee the treatment effect and technical difficulties during the implementation of the project, and optimize the preliminary plan for industrial wastewater treatment. Determination of the optimal process conditions: Through the feasibility experiment of the technical route, if it is confirmed that the selected technical route is feasible, it is necessary to continue the experimental study of the optimal process conditions. Generally, the single factor method and the orthogonal test method can be used to determine the optimal process parameters. The obtained optimal process parameters must be subjected to reproducibility experiments before they can be determined as the optimal process conditions. However, sometimes the influencing factors are complex and it is difficult to start orthogonal experiments immediately. You can also use single factor method experiments to find the best process conditions.
Selection of reagents: In the process of industrial wastewater treatment, reagents such as coagulants (polyaluminium chloride, etc.) and adsorbents are usually used. The same inorganic salt coagulants (polyaluminium chloride), iron-based and aluminum-based metal salts or polymeric salts may not have the same flocculation effect in wastewater. For example, when treating low-temperature wastewater, aluminum sulfate is difficult to hydrolyze, and the flocs formed are relatively loose, while the effect of treating low-temperature and low-turbidity water with ferric chloride or polyaluminium chloride, polyaluminium chloride iron is better than that of using aluminium salts. Different adsorbents have different effects. For example, activated carbon and resin adsorbents have strong adsorption capacity. Among them, resin adsorbents are more suitable for adsorption treatment of organic matter that is difficult to dissolve in water, easily soluble in organic solvents such as methanol, slightly larger molecular weight and polar. Such as dephenolization, decolorization, oil removal, etc.; while activated coagulation is mostly used to remove organic matter dissolved in water, which cannot be removed by biological and chemical methods.
Selection of equipment: For wastewater of different types and concentrations, the selection of similar equipment (such as flotation, aeration, etc.) is also very particular. For example, for flotation equipment for low-concentration wastewater, you can choose a jet flotation device with simple equipment and easy operation. For wastewater containing hydrophilic dyes, pesticides, surfactant substances, fats, vegetable oils, etc., it is better to choose an electrolytic flotation device.
The main products of flocculant manufacturer Xinhuan Water Treatment are:
White polyaluminium chloride (food grade), drinking grade polyaluminium chloride, industrial grade polyaluminium chloride, anionic polyacrylamide, cationic polyacrylamide, nonionic polyacrylamide, petroleum recycling polyacrylamide, oil recovery polyacrylamide, polyacrylamide, polymer flocculant polymer flocculation coagulant, polymeric ferrous sulphate, polyferric aluminium chloride and other water treatment chemicals. Welcome customers to write to us to negotiate business! Tel/WhatsApp：+8619003830067 Email：joanna@xhwtm.com Contact:Joanna
