When it comes to the role of polyaluminium chloride, a water purifier, I believe that everyone can blurt out that it can treat wastewater from various industries. It can be seen that everyone's understanding of polyaluminium chloride only stays in the aspect of water treatment. In fact, its effect is not limited to this. Henan Xinhuan Polyaluminium Chloride Manufacturer can say responsibly: Polyaluminium chloride is also a very high-quality decolorizing oxidant product. Due to the influence of its own chemical components, polyaluminium chloride has a high decolorization rate for wastewater containing water-soluble dyes such as active, direct, cationic and acidic dyes; it also has a good decolorization effect on disperse dyes. The main principle of decolorization is that the components of polyaluminium chloride react with the separated examples in the filtrate, and after chemical reactions, the color of the filtrate changes.
At present, most of the research results in society are that azo dyes are more easily decolorized by ozone oxidation. The amount of ozone used is related to the number of azo groups. For example, for 0.1 mol/l direct red 2S and direct black 2S, the amount of ozone required is 80 and 130 mg/l respectively. Ozone oxidation can also be combined with other treatment technologies. For example, the decolorization effect can be improved by using FeSO4, Fe2(SO4)3 and FeCl3 for condensation and then treating with ozone; polyaluminium chloride ozone-electrolysis treatment can increase the decolorization rate of direct and acidic dyes by 25-40% compared with simple ozone treatment, and increase the decolorization rate of alkaline and reactive dyes by 10%. Ozone plus ultraviolet radiation or simultaneous ionizing radiation can also improve oxidation efficiency. Since ozone oxidation has a wide adaptability to dye varieties and high decolorization efficiency, the reduction product of polyaluminium chloride O3 in wastewater and excess O3 can be quickly decomposed into O2 in solution and air, without causing secondary pollution to the environment.
How to use polyaluminium chloride as a decolorizer:
As decolorizers are used more and more widely in textile printing and dyeing wastewater, many customers who are first exposed to polyaluminium chloride decolorizers still have some doubts about its use. During the use of decolorizer, the dosage of the wastewater agent must be determined first. The determination process is a process of small test first and then large test. Now the process of small test (laboratory test) and large test (sewage operation commissioning) is explained for reference. The small test process is as follows:
1. Take an appropriate amount of wastewater (more than 200ML) in a beaker and adjust the pH value to 8;
2. Dilute the required agent, dilute the decolorizer 50 times (i.e. 2% mass concentration), dilute polyaluminum (PAC) 50 times, and dilute polyacrylamide (PAM) 1000 times;
3. Add the agent dropwise, first add the decolorizer, stir, then add polyaluminum, stir, and finally add PAM, stir, and let it stand;
4. Observe whether the chromaticity of the supernatant meets the requirements. If not, adjust the dosage of the agent and repeat the third step;
5. Calculate the dosage of decolorizer and other agents per ton of wastewater based on the test data. Calculation of decolorizer dosage (taking a specific test as an example).
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
