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Engineering Practice of Papermaking Wastewater Treatment by Anaerobic Reactors
  
DOI:10.11980/j.issn.0254-508X.2018.07.010
Key Words:papermaking wastewater from waste paper  IC anaerobic reactor  EC anaerobic reactor  recycling
Fund Project:广东省自然科学基金项目(2014A030310145)。
Author NameAffiliation
LI Guang-sheng1,2 1.State Key Lab of Pulp and Paper Engineering South China University of Technology Guangzhou Guangdong Province 510640
2.National Engineering Research Center of Papermaking and Pollution Control South China University of Technology GuangzhouGuangdong Province 510640 
LEI Li-rong1,2,* 1.State Key Lab of Pulp and Paper Engineering South China University of Technology Guangzhou Guangdong Province 510640
2.National Engineering Research Center of Papermaking and Pollution Control South China University of Technology GuangzhouGuangdong Province 510640 
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Abstract:This paper introduced the engineering practice and operation conditions of IC anaerobic reactor and EC anaerobic reactor used for treatment of waste water from high strength corrugating medium production using waste paper as raw material. Operation results showed that treatment efficiency of the EC anaerobic reactor was better than that of the IC anaerobic reactor and the influence of concentration of Ca2+ on the operation of IC anaerobic reactor was greater than that of EC anaerobic reactor.Combining with pre-acidification both IC anaerobic reactor process and EC anaerobic reactor process could effectively remove pollutants from the wastewater and the CODCr removal could reach to 61.2%~77.4% and 72.3%~87.9%, respectively. Through the treatments of primary sedimentation tank, pre-acidification tank, IC anaerobic reactor or EC anaerobic reactor, aerobic aeration tank, flocculation sedimentation tank, inclined tube sedimentation tank and high efficiency fiber filter process, the waste water could meet the first grade standard of the national standard for discharge of wastewater pollutants from pulp and paper industry (GB3544—2008) and a part of the treated wastewater could be reused for production.
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