Experimental Study on ALB Process for Domestic Wastewater Treatment of Small Towns in Chongqing City
LEI Xiaoling
WEN Yonglin
WAN Ji
YANG Wei
Abstract：This paper described a novel ALB process used to treat domestic sewage of small townships in Chongqing City.The influencing parameters including DO,HRT,air flow of the air lifter and SRT were investigated in an experiment with a bench-scale ALB unit.Results of the experiment showed that the optimal reaction parameters of ALB process were DO 2 mg/L,HRT 8 h,air flow of the air fifter 1 L/min,SRT 15 days.Under the optimal operation condition,the removal rates of COD,NH4+-N,TN,TP were 89.0％,83.4％,66.1％ and 68.8％,respectively.The effluent quality of the ALB unit met Class 1-B of the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant Wastewater.In conclusion,ALB process presented a compact and energy-saving activated sludge technology for nitrogen and phosphorus removal,especially suitable for medium and small townships.
Keywords：ALB processdomestic sewage of small townsnitrogen and phosphorus removal
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 127-131 )