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Preparation of Regularized Iron-Carbon Filler and Its Application in Advanced Treatment of Pulping Wastewater
  
DOI：10.11980/j.issn.0254-508X.2018.02.001
Key Words:micro-electrolysis  iron-carbon filler  advanced treatment  bagasse  pulping wastewate
Fund Project:国家水体污染控制与治理科技重大专项（2014ZX07213001）。
Author NameAffiliation
莫立焕 华南理工大学制浆造纸工程国家重点实验室，广东广州，510640 
杨　爽 华南理工大学制浆造纸工程国家重点实验室，广东广州，510640 
谈金强 华南理工大学制浆造纸工程国家重点实验室，广东广州，510640 
李　军 华南理工大学制浆造纸工程国家重点实验室，广东广州，510640 
徐　峻* 华南理工大学制浆造纸工程国家重点实验室，广东广州，510640 
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Abstract:In this paper， the regularized iron-carbon micro-electrolytic spherical fillers were prepared using iron powder， activated carbon and clay as the main components. Four independent variables including the iron to carbon ratio， the clay mass ratio， ammonium chloride mass ratio and calcinating time were optimized. The results showed that the regularized iron-carbon fillers prepared under the optimized preparation conditions （the iron to carbon ratio 1∶1，the clay mass ratio 25%， ammonium chloride mass ratio 0.5%， calcinating 2 hours in 400 ℃） were used in the advanced treatment of bagasse pulping wastewater under optimal treatment process （the pH value was 2.5， the addition amount of Fe-C fillers were 30 g/L， the aeration flow rate was 0.3 m3/h， the reaction time was 90 min）. The removal rate of CODCr and TOC was 69.9% and 70.8% respectively. The basic structure of the filler after using in wastewater treatment was not changed and the there was no any loss of active components on its surface．
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