摘要
在700～1 000℃的高温下烧结制备了不同种类的铁碳微电解填料,通过静态实验表明,掺杂铝粉的铁碳微电解填料投加到生活污水中有显著的处理效果,NH4+-N、COD和TN分别达到了6.18%、44.18%和6.86%,去除效果优于其他填料.掺杂铝粉的铁碳填料在TP的去除率为33.45%,低于掺杂碳酸镁的铁碳微电解填料35.53%的去除率.但是,根据综合处理效果来看,处理生活污水最佳的填料为掺杂铝粉的铁碳微电解填料.将掺杂铝粉的铁碳微电解填料投加到挂膜成功的生物膜反应器中,结果表明,投加铁碳微电解填料的生物膜在NH4+-N、COD、TN和TP的平均出水去除率分别达到了85%、89%、79%和81%.
Abstract
Different types of iron-carbon micro-electrolysis fillers were prepared by sintering at high temperatures ranging from 700 to 1 000℃.Static experiments demonstrated that adding aluminum-doped iron-carbon micro-electrolysis fillers to domestic sewage significantly improved treatment efficiency,with removal rates of NH₄⁺-N,COD,and TN reaching 6.18%,44.18%,and 6.86%,respectively-better than those achieved by other fillers.The removal rate of TP using the aluminum-doped iron-carbon filler was 33.45%,which was lower than the 35.53% achieved by the iron-carbon micro-electrolysis filler doped with magnesium carbonate.However,considering the overall treatment performance,the aluminum-doped iron-carbon micro-electrolysis filler was the most effective for treating domestic sewage.This selected filler was added to a biofilm reactor,successfully forming a membrane.The results showed that the biofilm reactor with the iron-carbon micro-electrolysis filler achieved average effluent removal rates of 85%,89%,79%,and 81% for NH₄⁺-N,COD,TN,and TP,respectively.
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