Journal of South China University of Technology(Natural Science) >

2016 , Vol. 44 >Issue 3: 142 - 148

DOI: https://doi.org/10.3969/j.issn.1000-565X.2016.03.020

Biological Engineering

Investigation into Biofilm Colonization on a New-Type Biofilm Reactor for Domestic Wastewater Treatment in Traditional Villages

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  • 1.School of Biological Science and Engineering,South China University of Technology,Guangzhou 510006,Guangdong,China; 2.School of Architecture//State Key Laboratory of Subtropical Building Science,South China University of Technology,Guangzhou 510640,Guangdong,China
浦跃武(1964-)，男，博士，副教授，主要从事污水治理、生物质能源研究． E-mail:g96123@ scut． edu． cn

Received date: 2015-04-24

  Revised date: 2015-06-21

  Online published: 2016-02-02

Supported by

Supported by the National Key Technology Research and Development Program of the Ministry of Science and Technology of Chinaduring the Twelfth Five-year Plan Period(2014BAL06B02)

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Abstract

A new-type biofilm reactor started up by adding activated sludge manually was designed to treat the do- mestic wastewater in traditional villages,and the influences of COD load,C/N ratio and the reflux ratio on system operation were investigated.Experimental results show that (1) the addition of activated sludge helps successfully colony biofilm with good appearance and obvious microbial morphology variation in a short time; (2) both COD and NH+4 -N removal efficiencies achieve more than 85% after the biofilm colonization; (3) the operating efficiency of biofilm reactor is greatly affected by COD load,C/N ratio and reflux ratio; and (4) the COD and NH+4 -N removal efficiencies respectively achieve 91.46% and 88.65% at a COD load of 0.25kg/(m 2 ·d),a C/N ratio of 10.2 and a reflux ratio of 9.17.

Key words： biofilm reactor; domestic wastewater treatment; biofilm colonization start-up; COD load; C/N ratio; reflux ratio

Cite this article

PU Yue-wu XU Xiao-ma WANG Si-yao WU Jie-jie WEI Cheng . Investigation into Biofilm Colonization on a New-Type Biofilm Reactor for Domestic Wastewater Treatment in Traditional Villages[J]. Journal of South China University of Technology(Natural Science), 2016 , 44(3) : 142 -148 . DOI: 10.3969/j.issn.1000-565X.2016.03.020

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