In the same type of waste water, why use the same phosphorus removal agent, use the same process, and add the same amount of chemical, so that the phosphorus content of the effluent can meet the standard but not? This can be traced back to the method and amount of phosphorus removal agent.
Studies have shown that the various forms of phosphorus in sewage are not equal. Taking domestic sewage tail water as an example, total soluble phosphate> soluble orthophosphate> particulate phosphorus content> other dissolved phosphorus, but due to differences in water , The same total phosphorus will also lead to differences in the proportion of phosphorus in different wastewater.
Generally, when the phosphorus removal agent is used, it can be directly added or diluted and added to adjust the pH value of the sewage to a normal value. After the phosphorus removal agent is put into the wastewater, a chemical reaction will occur after the agent and the sewage are fully mixed, and the harmful substances will be discharged into the water body in the form of precipitation or bubbles. Generally, the amount of phosphorus removal agent added is one-ten thousandth to one-thousandth of the amount of wastewater. After estimating the amount of sewage, the amount between one-ten thousandth and one-thousandth of the amount of sewage can be calculated. If it is added after dilution, it is generally diluted three to ten times.
Mastering the scientific method of dosing can achieve the best effect, which can save the dosage and cost of the medicament, and can effectively improve the effect of phosphorus removal.