Research Progress on the Removal Effect and Mechanism of Phosphorus from Water by Biomass Materials

Eutrophication of water body is one of the major environmental pollution problems faced by all countries in the world. This article mainly discusses various biomass materials for removing phosphorus pollution in eutrophication water. Firstly, it introduces the current situation of phosphorus pollution in eutrophication water is introduced, and then various mainstream phosphorus removal technologies are described, such as physical method, chemical method and biological method, especially introduces the biomass phosphorus removal technology in adsorption method, which is cost-effectively and efficient. All kinds of biomass materials have been listed, such as biomass-based phosphorus removal materials, biochar phosphorus removal materials and modified biomass phosphorus removal materials, and their application range, advantages and disadvantages as well as their preparation and modification methods are introduced. In addition, different purification mechanisms such as ion exchange, physicochemical adsorption, coordination adsorption, surface precipitation and hydrogen bonding are also introduced. Finally, the current challenges and future development directions of phosphorus removal from biomass materials are discussed and prospected.