Landfill leachate treatment

Release Date:

2024-05-20

Source:

Pluralistic development of landfill leachate treatment technology: exploration and practice of combined process


Landfill leachate, as one of the difficult problems in the process of waste treatment, the choice of treatment technology is directly related to environmental protection and resource utilization efficiency. However, the traditional single treatment technology is often difficult to achieve the ideal treatment effect, which makes the treatment of landfill leachate complicated and difficult. Therefore, it has become a hot topic in the field of landfill leachate treatment to develop the treatment process from single to diversified and give full play to the advantages of each process through combination process.

Landfill leachate treatment

Among the many processing technologies, each has its own unique advantages and limitations. For example, physical methods can quickly remove suspended matter and particulate matter from leachate, but have limited effect on the removal of dissolved pollutants; Although the chemical method can deal with dissolved pollutants, it may produce secondary pollution. The biological law is suitable for the degradation of organic matter, but the treatment cycle is longer and the operating conditions are higher. Therefore, it is difficult for a single treatment technology to make the leachate reach the discharge standard.

The appearance of the combined process provides a new idea for the treatment of landfill leachate. Through the effective combination of different processing technologies, we can give full play to their respective advantages and make up for each other's shortcomings, so as to achieve better processing results. For example, the combined physico-chemical process can first physically remove suspended matter and particulate matter in the leachate, and then further remove dissolved pollutants by chemical method; The combined biofilm process can use biological degradation of organic matter, and then remove the remaining pollutants and salts through membrane technology.

In practical application, the selection of the combined process needs to be considered according to many factors such as the nature of leachate, treatment requirements and economic conditions. At the same time, it is also necessary to pay attention to the synergy between the various processes to avoid negative effects. In addition, with the continuous progress and innovation of technology, new combined processes and treatment methods are also emerging, providing more options for the treatment of landfill leachate.

In summary, the diversified development of landfill leachate treatment technology is an inevitable trend. Through the exploration and practice of combined processes, we can give full play to the advantages of each process, improve the treatment efficiency and quality of leachate, and make greater contributions to environmental protection and resource utilization.

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