An Experimental Study on the Phosphorus Removal of Polyaluminum Ferric Chloride
TTaking the biochemical effluent of an urban sewage treatment plant as the research object,this paper studies the influence of changes in the content of Al2O3 and Fe3+in polyaluminum ferric chloride on phosphorus re-moval efficiency through experiments,and also studies the effect of the dosage of polyaluminum ferric chloride on phosphorus removal efficiency.The results show that the best treatment effect is achieved when the Al2O3 content is 9.0%and the Fe3+content is 0.8%in polyaluminum ferric chloride.When the dosage of polyaluminum ferric chloride agent in the effluent is 120 mg/L,the effluent concentration of TP is 0.09 mg/L,which can ensure the in-ternal control discharge standard of TP≤0.10 mg/L in the sewage effluent.
Chemical phosphorus removalPolyaluminum ferric chloridePhosphorus removal agentAdsorption bridging
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