Research on Livestock Wastewater Treatment by Algal-bacterial System

With different concentrations of livestock wastewater,the removal efficiency of NH+4-N,TP and COD in wastewater algae bacteria system is investigated. The results showed that the removal efficiency of the algae bacteria system varies on different concentrations of livestock wastewater. When the concentration of NH+4-N,TP and COD in wastewater was less than 44. 4 mg /L,6. 4 mg /L and 500 mg /L,the algae bacteria microorganisms had faster growth rate,larger biomass and better wastewater treatment efficiency. When the treatment time is 6 d,the removal efficiency of NH+4-N,TP and COD is greater than 90%,84% and 80% respectively. The experimental results provide a theoretical basis for constructing high rate algal pond.