The Secret of Water Treatment in Steel Plants

Water treatment chemicals are essential chemical agents in the process of industrial water, domestic water, and wastewater treatment. The use of these chemicals allows water quality requirements to meet standards.

The application of water treatment chemicals is very extensive. Will water treatment chemicals be used in steel production? Let us look at the secrets of water treatment in steel plants.

Use in ironworks

Cooling circulating water treatment chemical for blast furnace and hot blast stove. It includes an open circuit system. Semi-open loop system. Pure water closed loop system and other processes. Blast furnace gas washing water turbid circulation system. Blast furnace slag water circulation system. The blower circulates water to treat the medicament.

Use of steel mills

Oxygen converter flue gas purification sewage treatment agent. The converter indirectly cools the circulating water treatment chemical. Electric furnace net circulation cooling water system. The converter softens the cooling water system. Electric furnace soft water cooling water system. Converter sludge treatment system. Electric furnace vacuum treatment of sewage treatment chemicals.

Use in continuous casting plants

Crystallizer soft water (or demineralized water) closed circuit circulating water system. Secondary cooling of the turbid circulating water system. Direct cooling of the turbid circulating water system. Sludge dewatering treatment agent.

Use in hot rolling mills

Hot-rolled net-circulating water treatment chemical. Hot rolled turbid circulating water treatment chemical. Filter backwash water treatment chemical. Oil-containing emulsion wastewater treatment chemical. Sludge treatment system.

Use in cold rolling mills

Indirect cooling of the open circuit water treatment chemical. Acid and alkali wastewater treatment chemical. Oil-containing, emulsion-containing wastewater treatment chemical. Sludge treatment system.

What is the most suitable water treatment chemical for steel sewage treatment?

Water treatment chemicals are used in wastewater treatment in many industries. The sewage treatment agent is determined according to the nature of the sewage.

For example, the use of chemicals in metal steel sewage treatment agents is generally recommended to use sewage treatment flocculants. An anionic polyacrylamide having a molecular weight of between 1400 and 1600 (million) is used. Industrial grade polyaluminum chloride is used in combination.

Steel wastewater is water from the production of steel and some equipment water, cooling water, washing water and so on. The direct cooling water is in direct contact with the product materials, and contains pollutants, which can be recycled or used in cascade.

The quality of the wastewater produced is different for the production process of the steel plant. In addition, most steelmaking is intermittent production. Therefore, the composition and properties of wastewater are constantly changing with the peak period of smelting and the peak period.

Before the wastewater produced by the steel plant enters the sedimentation tank, it passes through the coarse particle separator equipment. Remove suspended impurities from large particles. Then it is discharged into the sewage sedimentation tank.

The flake alkali or ferrous sulfate product is added to the sewage sedimentation tank according to the water quality of the wastewater. Then, the polymer polyacrylamide product is placed after the pH value is debugged. Finally, the wastewater is flocculated and suspended in the sedimentation tank. Thereby solving the problem of clarification of wastewater.

When processing steel wastewater, a certain proportion of polyaluminum chloride is added before the polyacrylamide product is placed. When the polyaluminum chloride is placed in the sewage, the suspended matter in the water will flocculate the smaller flocs. This produces greater flocculation in the wastewater. Allow the suspension to settle faster. Thereby achieving a better and faster flocculation effect.

Do You Ever Realize What Is Water Treatment?

Water treatment methods are the means of improving water quality by means of physical, chemical or biological methods. The objective of water treatment methods is the drinking water which doesn’t match the quality requirements.

water treatment industry

The techniques humans do water treatment may be several years. The methods of water treatment include physical water treatment and chemical water treatment.

Physical methods include filtration by using a number of filter media with different pore sizes. Also, the technique of adsorption, as well as the means of blocking, are utilized. To exclude impurities in the water by adsorption or blocking.

A far more important adsorption method is to adsorption with activated carbon. The blocking method is to pass water through the filter material. To ensure the bulky impurities cannot pass, and thus the water that is clean is got.

Additionally, physical methods include precipitation methods. It really is to let the impurities with smaller specific gravity float on the surface of the water. Or let the impurities with larger specific gravity are deposited underneath. In order to obtain relatively water that is clean.

The chemical method uses various water treatment chemicals to convert impurities into substances which are less damaging to the human being. Or to use water treatment chemicals to focus impurities.

The oldest chemical water treatment solution ought to be the alum. The alum is put into the water. After the impurities within the water are collected, the quantity becomes large. And also the impurities can be taken off with a filtration method.

The minimum standards for water are placed by the environmental protection department. Industrial water have their requirements. The physical properties water are the basic criteria for judging the standard of water.

Including temperature, color, transparency, smell, taste, etc. The chemical properties of mineral water may also be important indicators for judging water quality. Such as its pH, dissolved solids concentration, oxygen content, etc.

Some natural waters have a very total dissolved solids power of up to 1000 mg/l. Canada makes it necessary that the concentration of total dissolved solids in mineral water should not exceed 500 mg / l.

Much industrial water is also important to go to concentrations not higher than 200 mg/l. This type of industrial water is not to be used casually although its physical properties meet the requirements.

In addition, the radioactive element content in water can be a very important characteristic that needs to be monitored.

The goal of water treatment solutions is to improve water quality into a certain standard. There are lots of different types of physical water treatment, chemical water treatment, and biological water treatment based on water treatment methods.

According to the treatment target, there are two major kinds of water supply treatment and wastewater treatment. Water supply treatment includes domestic waters treatment and industrial water treatment. Wastewater treatment includes domestic sewage treatment and industrial wastewater treatment.

There are several kinds of industrial water treatments who are particularly closely connected with thermal technology. They are boiler feed water treatment, make-up water treatment, steam turbine main condensate treatment and circulating water treatment. Water treatment is of great significance to industrial production, product quality, and environmental ecology.