Aluminum sulfate is often used as a purifier for turbid water. Its use effect is very good, because there are many sewages with high phosphorus content, which will cause water pollution. In order to avoid pollution, many enterprises now It will be used to remove phosphorus in sewage, so what is its effect, let’s take a look at the following experiment.
1. Add
Add 25% concentration of solution to the sewage treatment system, add continuously for about a month, and test the effect of the addition, the phosphorus content of the sewage without treatment, and the phosphorus content after only microbial phosphorus removal treatment will increase by 25% The phosphorus content of the discharged water after treatment of the solution with a high concentration was carried out, and a series of comparative tests were carried out. According to the test results, we can know that if only the microbial method is used to remove phosphorus in the sewage treatment process, the phosphorus content in the treated water may even decrease due to the hysteresis phenomenon. The phosphorus content is higher than that of the day, and the phosphorus removal effect is not significant, but adding aluminum sulfate as a precipitant can remove most of the phosphorus in the sewage, making up for the lack of microbial phosphorus removal ability. It can be said that traditional microbial phosphorus removal A powerful supplement to the method, it can be said that it is very important in the phosphorus removal of sewage. It can quickly remove the phosphorus in a relatively short period of time, and it solves the subsequent problems of the microbial method.
2. Determine the concentration of the solution
In order to determine the appropriate concentration of the solution as a phosphorus precipitating agent, we have done experiments and comparisons on the precipitation effects of 15% concentration solution, 25% concentration solution, and 30% concentration solution. It can be concluded that the solution of 15% concentration The treatment effect of sewage with high phosphorus content is sometimes not obvious, but the solution with a concentration of 25% can remove most of the phosphorus in sewage, and the performance of a solution with a concentration of 30% is basically the same as that of 25%, so choose 25% % concentration solution is more suitable for phosphorus removal precipitant.
3. Confirmation of phosphorus removal stability
In order to prove that its phosphorus removal effect is relatively stable, we have added 25% solution to the sewage treatment system to test the phosphorus removal effect for a long time. During treatment, the phosphorus removal effect is very significant and more stable. The long-term monitoring of the phosphorus content in the captured and discharged water all conforms to the national secondary sewage treatment discharge standard, and it is very reliable to use it for phosphorus removal.
In the above experiments, we can see that the effect of ordinary sewage treatment is relatively poor, and the effect of using aluminum sulfate to treat phosphorus in sewage is very good, but the stability is very good, and the treatment method is also very simple.
Post time: Nov-22-2022