Wednesday, September 29, 2021

Phosphating wastewater treatment process

 Phosphating wastewater is the pretreatment of metal surface treatment, generally including degreasing and rust removal, surface conditioning, and phosphating passivation.

Phosphating wastewater treatment process description:

1. Chemical removal of zinc

Chemical methods for removing zinc include the sulfide method and alkali method coagulation precipitation.

2. Phosphorus removal by chemical precipitation by the lime method

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Adding lime milk clarified liquid and adjusting the pH value to 10~11, most of the phosphate in the wastewater can be precipitated and removed. The lime milk also neutralizes while removing phosphorus.

3. Phosphorus removal and oil removal by coagulation air flotation

The addition of flocculant makes the residual phosphorus in the wastewater and other pollutants undergo a coagulation reaction, and the flocs produced are attached to the air floatation method to produce a large number of fine bubbles, and the bubble buoyancy is used to bring them out of the water. At the same time as dephosphorization, it can also absorb and remove oil droplets. The bubble rises fast, and the operation is safe and reliable. It is an economical and practical deoiling technology.

4. Activated carbon adsorption phosphorus removal

Activated carbon is the most commonly used adsorbent in water treatment. It has good adsorption performance and chemical stability is not easy to break and has low airflow resistance. The commonly used ones are powder and granular. The process utilizes the huge specific surface area of activated carbon to fully adsorb trace residual phosphorus and other pollutants in wastewater.

Phosphating wastewater treatment

5. Stirring and mixing device

Both the primary and secondary reactors are equipped with stirring devices. The stirring speed in the tank is gradually reduced by using a pulley or a reducer to meet the needs of stirring and mixing at different stages in the entire reaction process, making the reaction more thorough and more conducive to the subsequent precipitation Process. The pipeline mixer in the process makes the neutralization reaction easier when adding H2SO4, and can make the effluent pH value fully meet the standard.

6. Discharge mud by gravity or water pressure

The sludge or scum produced in the primary and secondary reactors and air flotation tanks in the system are regularly discharged into the sludge thickening tank by gravity or hydraulic pressure to be concentrated and then transported to landfill after natural drying. The clear liquid is returned to the conditioning tank for physical and chemical treatment.

7. Backwashing and desorption

Both the silica sand filter and the activated carbon adsorber in the system need to be backwashed regularly to prevent clogging, and the wastewater produced by them is returned to the regulating tank. In addition, in order to regenerate the activated carbon, a high-temperature heating regeneration method is used to activate, and water vapor is used to desorb the granular carbon in the activated carbon filter to ensure the normal adsorption effect.

Wednesday, September 1, 2021

Top 5 Things to Consider When Choosing Commercial Flooring

Finding the right commercial flooring manufacturer for a commercial location can be challenging. You can research each type of flooring option at Eonstar floor; when planning a commercial renovation, keep trustworthy commercial flooring suppliers in mind.

Choosing the best floor covering for a commercial flooring installation needs careful thinking. This piece will go over 5 factors you should consider when choosing highly functional yet beautiful floor coverings.


What are the 5 considerations for commercial flooring?

Floor covering is an essential component of commercial building interiors. In addition to withstanding heavy activity in the workplace, office flooring serves as a cozy element. It may also be utilized to make a statement or define your style, as office environments have grown less rigid and formal.

In the modern age of dynamic corporate culture, it is insufficient to examine utility alone when selecting a suitable choice for commercial flooring. Here are five points to consider if you are trying to establish a modern workplace or change an existing office into a trendier workplace.

1. Long-term viability

Although it is not a new phenomenon, more and more people are becoming environmentally concerned, and external conditions are becoming pre-requisite considerations in many design projects. Sustainable, reusable, and recycled materials are taking over the floor covering market, as they are more eco-friendly than traditional materials.

While certain materials have better reputations than others. At Eonstar, a large range of options are available, allowing for a wonderful blend of textures, appearance, and feel.

2. Unique Designs

The traditional workplace was frequently drab, stiff, and overly formal in its appearance and operations.

Due to the increasingly diverse and youthful workforce, offices incorporate more innovative designs to attract and retain young workers.

Therefore, geometric designs (such as hexxtiles and herringbone) and vibrant colors (Visualize and Trend) rapidly replace classic monochrome commercial flooring. This element has played a significant role in the rise of modular flooring in the business sector, attributed to its versatility and ability to blend in with any workspace design.

3. Luxurious flooring

A luxurious luxury floor is no longer reserved for the wealthy and well-off but is becoming increasingly popular in commercial settings.

Designers are incorporating luxury vinyl tiles produced from high-quality, low-cost materials and attractive, textured carpet tiles into office designs to provide elegance and comfort. This is a part of the residential trend, and it provides significant real benefits to an organization.

4. Safety

Safety has a significant impact on the workplace, and it should be a primary consideration in the design of workspaces. To protect the workplace safety of your employees, you must check that the flooring material you choose complies with commercial flooring standards.

Consideration of slip resistance when selecting flooring for a workstation is an important element, especially the floor coverings in entrances and locations where spills may be more common than usual.  

Consideration of barrier tiles and entry matting systems has significant safety implications, as well as the added benefit of making the remainder of your floor covering more visually appealing and easier to keep updated.

5. Maintenance 

Commercial floors may wear out faster than household floor coverings due to excessive usage. They can also become filthy faster than residential building floors. Before installing any business flooring material, you must consider its longevity and ease of maintenance.

This is easily rectified by examining the manufacturer’s cleaning and maintenance instructions and the various flooring symbols contained on the standard documentation of a commercial flooring manufacturer.

The wear rating class, the castor chair test, and features such as stain resistance and colorfastness are among the most important.


What type of flooring is good for commercial use?  

When choosing a commercial flooring material for your business, consider that maintenance costs may exceed the initial material and installation prices.

Here are five long-lasting materials that demand less maintenance:

1. Quarry Tile

Quarry tile is a tough flooring option, and it has limited design options. Quarry tile also requires minimal upkeep. Daily maintenance should consist of cleaning and mopping with a cleaner after each shift. 

2. Carpet Tile

Carpet tile is a long-lasting and easiest-to-maintain soft-surface flooring option. When a broadloom carpet is damaged, a complete roll of carpet must be replaced. When a carpet tile becomes stained, simply replace it. Carpet tile requires less labor, material, and time to maintain than broadloom carpet.

3. Wood Flooring

It is possible to find solid wood flooring in a wide variety of selections. Hardwood flooring is a traditional choice in parts because of its long-lasting quality (when properly cared for) and the fact that it never goes out of style.

It adds a sense of effortless sophistication and warmth to any environment, no matter how large or small.

4. Epoxy Floors

A thermosetting resin is placed on a concrete substrate to increase durability and aesthetic appeal. These systems are easy to install and maintain. If properly applied, the coatings will be chemical and abrasion-resistant for years. 

Epoxy flooring requires daily sweeping, deep cleaning every few months, and spot cleaning as needed. Epoxy systems are low-maintenance for commercial and industrial applications.

5. Polished concrete

Polished concrete is easy to install and maintain in industrial settings. To install polished concrete, we first harden the concrete with a chemical densifier. Then we polish with a grinder and seal with a sealant that comes in different colors.

Polished concrete is resistant to chemical spills, oil stains, and even forklift traffic. Like epoxy floors, polished concrete simply requires sweeping and spot cleaning, with occasional deep cleaning. While initially more expensive than laminate or VCT, its low maintenance needs reduce overall costs.

These solutions, while not exhaustive, will give long-term value through durability and ease of maintenance. 

Final thought

Choosing the best flooring material starts with selecting the best commercial flooring supplier. Eonstar has quite a lot of experience in many different flooring projects,   we are able to offer clients the solution on which materials offer the best value  in terms of initial cost, the convenience of installation, and long-term maintenance expenses, and we are ready to serve you