See How Easily Choose Water Treatment Chemicals
The most common chemical agents that are inevitably used in water treatment projects. Common chemical agents include flocculants, corrosion inhibitors, scale inhibitors, cleaning agents, fungicides, and the like.
Performance Characteristics and Application of Flocculant
The molecular formula of the flocculant is +CH2-CHn, which is a linear polymer with a molecular weight of 4 to 20 million. The flocculating agent can treat the domestic sewage by the high-efficiency mixed bacteria group with flocculation and degradation separated from the urban domestic sewage, and ensure the COD and BOD removal rate of the sewage reaches 100%.
Performance Characteristics and Application of Corrosion and Scale Inhibitor
The agent is made up of an alkaline substance and an organic compound, and a corrosion inhibitor is added to prevent the heated surface from being corroded.
The alkaline substance in the chemical reacts with calcium and magnesium salts in the water to form water slag in the boiler. After sedimentation, it is discharged to the outside of the boiler through the sewage function, reducing the concentration of calcium and magnesium ions in the water, so that the boiler does not Scale is generated.
Performance Characteristics of Cleaning Agent
The cleaning agent is a volatile solvent that dissolves the permeate and is used to remove excess permeate from the surface of the workpiece being inspected. Some cleaning agents are specifically designed to remove metal hydroxides, calcium carbonate and other similar scales attached to the surface of polyamide, polysulfone, and film component membranes. Check the wash tank, piping and security filters, and install new filter cartridges before using the cleaner.
Fungicide Performance Characteristics
The fungicide, look at the name will see its role. The bactericide is mainly an agent that eliminates harmful bacteria such as bacteria and microorganisms. Internationally, it is usually used as a general term for the treatment of various pathogenic microorganisms. The fungicide does not cause hidden dangers to the system such as bromine, iodine, peroxide or peracetic acid.
There are many types of water treatment chemicals, and it is important to choose a better water treatment agent. While considering the price, we have to consider the actual application and the effects of the use.
How to choose water treatment chemicals in sludge dewatering, we mainly look at the industry in which the sewage belongs. The level of selected ionicity is judged based on the content of organic matter in the sewage.
We can choose any inorganic water treatment flocculant containing polyaluminum ferric chloride, polyferric sulfate or aluminum sulfate. However, in the usual selection, we often choose anionic and nonionic polyacrylamides of polyacrylamide.
In terms of the choice of anionic and nonionic types, we generally have to deal with the pH of the sewage.
If the pH is below 7, it is recommended to use a non-ionic type. If it is 7 or more, an anion type is selected. If it is just 7, then we can choose an anionic type with a lower degree of hydrolysis. We also use cationic type, but its sewage is special sewage.
How to Add Water Treatment Chemicals When Using
When doing water treatment, we must be careful about every link. Here, our main thing is to understand how to add water treatment chemicals during sewage treatment.
First of all, first clean the metering box, do a good job of closing the drain valve at the bottom of the metering box, after the water injection treatment, then open the drain valve, so that the sewage inside will be empty, so that it is cleaned once. And then add the amount of processing.
Next, the mixing motor of the metering box is opened, so that the water treatment agent is uniformly stirred, and then the motor is turned off.
Finally, the inlet and outlet valves of the metering pump are opened and the switch of the metering pump is turned on. When adding the water treatment agent, it is necessary to add the agent before the security filter. Only in this way can the drug be used.
The application of water treatment chemicals is effective, safe and cyclical for industrial production, effectively increasing production and improving quality, and has great practical significance for water saving, energy saving, consumption reduction and environmental protection.