Laboratory Wastewater Solution

Building a laboratory wastewater treatment system requires a strict technical process, which will be presented by Toan A JSC in the following article

Characteristics of laboratory wastewater

To build a suitable laboratory wastewater treatment system, users need to understand the characteristics of the wastewater to be treated.

Wastewater in laboratories does not have a specific cycle, and its components are very complex. Each laboratory has different characteristics, such as school laboratories, biotechnology laboratories, environmental laboratories, microchip design laboratories, nuclear research, physical chemistry, etc. Therefore, the quality of wastewater is diverse, depending on the research direction, type of experiments, types of chemicals, and the amount of chemicals used in the analysis.

In laboratory activities, wastewater originates from two main sources:

• Domestic wastewater of laboratory staff.
• Wastewater from cleaning laboratory equipment and chemical containers.

Directly discharging laboratory waste into the environment can lead to serious pollution of surface water and groundwater. Moreover, environmental laws in Vietnam are increasingly stringent, requiring a treatment plan to ensure the safety of wastewater before discharge into the environment.

Laboratory wastewater treatment technology process

Above is the complete design diagram of the laboratory wastewater treatment process proposed by Toan A JSC based on the characteristics of laboratory wastewater.

Due to the high BOD and COD content in laboratory wastewater, which is difficult to biodegrade, we choose a high-level oxidation solution to break down both organic and inorganic compounds. The wastewater is then transferred to chemical treatment processes (coagulation - flocculation), physical treatment (settling, filtration, adsorption), and biological treatment (through aerobic and anaerobic tanks). The treated water completely removes harmful pollutants.

The general principle of the high-level oxidation process is the reaction of Ozone with H2O2.

• H2O2 + O3 -->  2 OH- + 3O2.

The OH- radical is a strong oxidizing agent, capable of removing up to 90% of COD, BOD5, and SS, and destroying over 95% of coliform bacteria.

Laboratory wastewater standards

After treating the wastewater at the laboratory, meeting the requirements of QCVN 28 – 2010/BTNMT - National Technical Regulation on medical wastewater, with technical specifications as shown in the table below:

Toan A JSC specializes in constructing laboratory wastewater treatment systems

With over 16 years of experience in water treatment, the outstanding advantages of choosing Toan A's services include:

• Stable operation system, simple and automatic processes that do not require highly technical personnel to operate.
• High durability of the facility, operating for 15 to 20 years due to high-quality materials and components.
• Low operating costs, minimizing chemical expenses.
• Toan A JSC ensures that the treated wastewater meets all the parameters in QCVN 28– 2010/BTNMT.
• Contact us if you have any questions or want to learn more about the laboratory wastewater treatment process.