首页|Contaminations removal from static lake water by compound
Contaminations removal from static lake water by compound
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Urban wastewater treatment techniques could not be applied to improve the pollutant removal efficiency,due to its characteristics of closed and quiescent conditions of the static lake water.In this study,natural zeolite and coal cinder were chosen as filler compounds of the ecological filter.Static and dynamic experiments were carried out to study the remediation efficiency.Experimental data show that removal efficiency of ammonia nitrogen(NH4+-N)reaches 85%in both static and dynamic patterns and its removal efficiency reaches 97%when the recycling period is 1 h in dynamic condition.The maximum removal efficiency of nitrite nitrogen(NO2--N)reached 98%,and the removal efficiency of total nitrogen(TN)is a maximum of 84%.The final effluent concentration of total phosphorus(TP)is 0.079 mg/L.Effluent recycling could improve the nutrient(N,P)removal efficiently.Dissolved oxygen(DO)concentration could remain high with the water cycling.The filter works efficiently on regulating pH to the standard level of healthy water.
bio-remediationcompound substratestatic water
LIU Shu-yu、WU Ming-hong、MA Fang、ZHANG Jie、GU Xiao-jing
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School of Environmental and Chemical Engineering,Shanghai University,Shanghai 200444,P.R.China
School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,P.R.China
国家自然科学基金国家自然科学基金Shanghai Leading Academic Discipline ProjectSystems Biology Research Foundation of Shangha
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