Environmental problems have been a concern for more and more people, accordingly, there are more strict laws and regulations to normalize the discharge of wastewater.

Industrial plants must have good management for their production of sewage. On the one side, they have to obey the rules; on the other side, having a wastewater treatment system can help them to save the total costs to some extent.

waste water treatment system

The most important point for many plants is the cost of the wastewater treatment system. It is known that a wastewater treatment system can be expensive.

As the operator or manager of the company, they naturally want to save the cost. This article would help you know the wastewater treatment system from a comprehensive perspective.

What is a wastewater treatment system?

A wastewater treatment system is a collection of many technologies that work together to meet your individual requirements for wastewater treatment.

wastewater treatment system

A wastewater treatment system that is designed to accept changes in treatment requirements can help to a great extent in preventing expensive replacements or upgrades in the future. Treating wastewater is rarely a static operation.

Generally, a helpful wastewater treatment system should be capable of handling:

  • fluctuations in contamination and flow during a process
  • changes in the amount of chemicals needed to change the chemistry of the water
  • potential modifications to water effluent requirements

What does a normal wastewater treatment system consist of?

Normally, different plants have wastewater treatment systems that are composed of various components based on different operating conditions and different characteristics of liquids. However, that wastewater treatment systems basically has the same working principle and fundamental components.

normal wastewater treatment system
  • To remove trace amounts of oils, use an oil/water separator dissolved air flotation apparatus.
  • Metals are precipitated out of the solution and the pH is adjusted using a series of reactors and chemical additions.
  • a clarifier to remove treatment-related suspended particles that are present.
  • Filtration of some kind to get rid of any lingering trace levels of suspended solids (again, the level of filtration needed will depend on the degree of suspended solids removal required to pass local discharge regulations).
  • A control panel may also be required, depending on the degree of automation required.


What we mentioned above is totally enough for a normal and standard treatment system for sewage. If there are special features or needs in particular industries or applications, the wastewater treatment system can be customized according to the requirements.

For example, the food and beverage industry which produces biological waste needs a biological treatment system to reduce biological oxygen demand.

What factors actually affect the cost of wastewater treatment systems?

Normally, there are two main factors that directly influence the cost of wastewater treatment systems.

  • How?

How means how much water does the plant need to discharge daily and how fast does the plant want to treat the sewage?

  • What?

What is the quality of the sewage? And what is the local regulations for discharge?

After answering these questions, you can approximately estimate your budget.

  • Explanation about how

Generally speaking, if your facility operates consistently at a lower flow rate, your wastewater treatment system’s construction cost will be reduced.

water flow

Equipment capital costs are often higher if your facility operates with a larger flow in a shorter period of time.

In order to receive an accurate cost estimate for your system, measure flow rates as precisely as you can before requesting a quote. This will ensure that the cost of your wastewater treatment system is always taken into account. Inlet buffering tanks are typically used to reduce peaks in flow and contamination concentration.

  • Explanation about what

The biggest cost of the wastewater treatment system is often the equipment itself. To pick up suitable equipment for your own plants, you need to figure out the following points.

what is the water quality

① What kinds of liquids does your plant want to filter or treat? Oil, foods & beverage, or manufacturing sewage?

② Does your sewage contain metal, ions, suspended solids, or other contaminants?

③ Are there organic or inorganic substances in your sewage?

All these would lead to what kinds of wastewater treatment system you need. For instance, if your business performs plating, some of the problems we frequently see include the need for pH stabilization, the removal of suspended particles, and the removal of metals.

Another illustration is a food-based facility that needs to handle wastewater from producing items like milk, dairy goods, beverages, etc.

Other relevant factors for the cost of the wastewater treatment system

Expect the most important points we mentioned above, there are still some other relevant factors that can affect the cost of your wastewater treatment system.

other factors
  • The budget for the system
  • The installation footprint
  • Operation and maintenance costs
  • Required purification standard
  • Transportation
  • Pre-assemble or not


It is crucial to comprehend and investigate any additional fees or charges you might pay. For instance, are there any connection costs in your region for releasing treated wastewater? Consult with local authorities to learn more about any potential connection fees in your area.

The cost is frequently determined by the amount of water your company needs, and it differs depending on whether you discharge into the environment or to a nearby municipal facility.

treatment plant

Normatively strict regulations are getting stricter every day. Additionally, regular, long-term monitoring is usually necessary. Before releasing any trash, you will need to obtain permission to discharge and have your plant approved. Failure to comply with local limitations can incur significant fines, so it is important to stay up to date on them.

Also, keep in mind that handling the secondary trash the system produces will be expensive. Due to strict environmental rules, you will either need to treat the waste before carting it away or solidify it using an evaporator or filter press before transporting it to a third-party disposal company.


Improving the treatment of sewage is not only important for manufacturing but also helpful for environmental protection. Though the plants need to invest a lot in beginning, they could also benefit from the wastewater treatment system.

By considering the actual operation condition and characteristics, the plants can find a suitable wastewater treatment system at a reasonable cost.

Brother Filtration has years of filtration experience and designs and manufactures all kinds of filter products. Our coalescer and separator filter cartridges can be applied to the wastewater treatment system. If you are interested in it, please feel free to contact us.

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