Prospects for the Future Application of Riverbank Filtration in China's Rural Water Supply
The safety of drinking water in rural areas has always garnered widespread attention from society.In recent years,significant im-provements have been made in the safety and security of water supply in rural areas,as well as in water quality.However,due to economic constraints,many rural areas still lack advanced water treatment facilities,resulting in inefficiencies and various other challenges in water treatment.To comprehensively enhance the overall protection level of rural water supply and water quality,this paper initiates discussion from the perspective of water intake sources,delving into innovative solutions to enhance water quality,specifically proposing the utilization of riverbank filtration technology.Riverbank filtration technology,as a pre-treatment method,can be concurrently implemented at water in-take sources,effectively alleviating subsequent pressure on the water treatment process.This natural method involves extracting water from the periphery of rivers or lakes,where surface water blends with groundwater as it traverses the aquifer medium.Through physical,chemi-cal,and biological processes,this riverbank filtration method purifies the water source,while also replenishing and elevating groundwater levels.This paper discusses the prospects and challenges to be faced by the application of riverbank filtration technology in the field of rural water supply in China through in-depth analyses of the principles of riverbank filtration technology and the mechanism of pollutant removal.Riverbank filtration technology can not only significantly reduce the turbidity of the source water and reduce the content of harmful microor-ganisms,but also effectively remove dissolved organic matter in the water,and it also has a certain degree of control of NH4+-N and new pol-lutants.These advantages in improving the quality of rural water supply water has shown great potential for application.However,riverbank filtration technology currently faces a number of challenges in practical application.For example,riverbank filtration filter layers may be-come clogged due to long-term operation,and may be affected by extreme hydrological conditions,which may reduce their filtration effec-tiveness.Nevertheless,riverbank filtration technology,as an economical and feasible pre-treatment process for water supply,it has broad prospects for development and application in terms of enhancing the efficiency of water treatment,expanding the scope of application of con-ventional water treatment processes,and reducing disinfection by-products.With the continuous improvement and promotion of the technolo-gy,riverbank filtration technology is expected to open up a new path for solving the problem of drinking water safety in rural areas and pro-vide better living conditions and health protection for rural residents.
riverbank filtrationrural water supplywater quality improvementpreprocessingdrinking water security
万方数据
维普
