Current phytoremediation technologies and applications

Abstract

In the 21st century, with the progress and development of science and technology, the pollution of water resources has become one of the main concerns. Currently available technologies for the remediation of water pollution are mainly physical and chemical remediation, and bioremediation is used in relatively few places. This paper presents the advantages and disadvantages of phytoremediation of wastewater and the current status of the application. The existing physical remediation methods, chemical remediation methods, and then bioremediation methods of in situ and ex situ remediation are described. Phytoremediation belongs to the in situ remediation method of bioremediation, which refers to the use of green plants and their inter-root microorganisms to work together to fix or decompose pollutants. Different classifications of plants play different roles in remediation, and different kinds of plants of the same classification are applied in different environments. Compared with traditional restoration methods, phytoremediation has the advantages of lower cost, additional effect on the surrounding air and soil removal, improved soil fertility after restoration, improved local landscape, a wide range of adaptation and economic benefits, etc. However, phytoremediation technology also has its shortcomings, we should invest more scientific research efforts in the research of phytoremediation technology in the future, and combine it with practice to strengthen the application of phytoremediation in wastewater treatment and reduce the harm brought to people by polluted water resources.