Top 5 most popular wastewater treatment technologies applied today

Wastewater treatment technology plays an important role in solving environmental pollution problems, protecting water resources and raising awareness of environmental protection. Therefore, effective solutions in wastewater treatment are becoming increasingly necessary. In this article, KPTCHEM will introduce the most widely used wastewater treatment technologies today and their importance in protecting and ensuring environmental ecological balance

What is wastewater treatment technology?

Wastewater treatment technology involves a series of steps aimed at removing pollutants from wastewater. The main goal of this process is to reduce the toxicity, turbidity, color, odor, and other undesirable elements of wastewater. At the same time, wastewater treatment technology ensures that the treated wastewater meets national environmental technical standards or more stringent requirements.

Methods in wastewater treatment technology include physical, chemical, biological, and advanced methods, selected depending on the specific characteristics of wastewater, local conditions, investment and operating costs, as well as specific environmental protection goals.

Top wastewater treatment technologies most widely used today

Currently, there are many advanced wastewater treatment technologies applied, such as:

1. Wastewater treatment technology according to MBBR system

MBBR technology, also known as Membrane Bioreactor, is famous as a modern solution in the field of wastewater treatment worldwide. This is a sophisticated combination of traditional Aerotank and aerobic biological method. MBBR is based on the principle of using biological media to treat liquids.

The MBBR wastewater treatment process includes the following steps: Initially, the waste is transferred to the wastewater collection tank, where suspended media are available. The surface of this media will contain many types of microorganisms, forming a prominent microbial sludge layer. Meanwhile, the internal layer of the media creates anaerobic microorganisms that help process and decompose organic compounds in the waste. These microorganisms, which are anaerobic, help reduce nitrate salts into nitrogen gas, enhancing the efficiency of treating pollutants in wastewater.

MBBR technology offers many advantages such as simple operation, high efficiency in BOD index, fuel saving, and easy control process with large capacity. However, it should be noted that this technology has limitations when depending too much on the amount of microorganisms on the media. This requires strict management to maintain stable performance and achieve optimal results in wastewater treatment.

2. Technology using MBR biological membrane filter

The most advanced technology in wastewater treatment today is the MBR biological membrane filter, which is widely used in many industries. This process begins when wastewater is collected and put into a tank, in which the MBR biological membrane is arranged. With extremely small membrane pore sizes from only 0.01 to 0.2 µm, the liquid waste after passing through the membrane is of extremely high quality. The membrane retains most of the solid waste, inorganic and organic compounds, and sludge on the membrane layer.

The MBR wastewater treatment process is not complicated, eliminating the need for disinfection tanks, sedimentation tanks, and filtration tanks, saving space for businesses. At the same time, aesthetics and hygiene are also highly appreciated.

The outstanding advantages of this technology are low operating costs and excellent treatment capacity in a short time. Enterprises appreciate MBR and choose it as the main solution in their wastewater treatment process. However, it should be noted that over-reliance on MBR membranes can be a major drawback of this technology, requiring careful management and maintenance to maintain long-term performance.

3. AAO wastewater treatment technology

AAO technology is the preferred choice of many businesses thanks to its versatility in liquid waste treatment. AAO’s waste treatment method integrates more microorganisms than MBBR, increasing the efficiency of the treatment process.

The operation process of the AAO wastewater treatment system is divided into three stages: anaerobic, anoxic and aerobic biological treatment. In particular, this technology is suitable for treating waste from specific industries, where the organic content is high. This means reducing the risk of moss and algae formation in the freshwater environment after the waste is treated and discharged.

The advantages of AAO treatment technology include high capacity and reasonable cost. At the same time, the ability to scale up and adapt to site changes is also quickly resolved when applying AAO technology. This makes AAO a flexible and effective solution for businesses looking to optimize their wastewater treatment process.

4. Application of biotechnology and physicochemical

This technology is widely applied in the treatment of most types of industrial waste, especially waste contaminated with chemicals and heavy metals with high color. The application of microorganisms to decompose organic matter in this treatment process increases the ability to remove nitrogen and phosphorus, superior to conventional coagulation and flocculation methods.

The outstanding advantage of this technology is the flexible and harmonious combination of physical-chemical and biological technology. This helps to optimize waste treatment efficiency, while minimizing costs and energy. However, it should be noted that this method is somewhat dependent on the coagulation-flocculation process, especially due to the influence of pH during the treatment process.

5. SBR wastewater treatment technology

SBR (Sequencing Batch Reactor) wastewater treatment technology operates on the principle of two main tanks: Selector and C-tech, with a 5-phase circulation cycle. The process begins when wastewater is fed into the Selector tank, where air is continuously injected. This supports the aerobic biological treatment process, creating conditions for the process to take place more smoothly. Then, wastewater is transferred from the Selector tank to the C-tech tank to continue the treatment stage.

The outstanding advantages of this technology are its stability and ability to operate without requiring too much manpower, minimizing operating costs for businesses. However, it should be noted that SBR depends significantly on the concentration of pollutants as well as the amount of nitrate salts in the sludge, which can affect the performance of the treatment process.

Conclude

Wastewater treatment technology plays an important role in protecting the environment and creating clean water sources. Applying advanced methods in wastewater treatment not only benefits businesses but also contributes positively to the sustainability of the ecosystem. Let’s cooperate and invest in wastewater treatment technology to join hands in building a clean and sustainable future.