A Study on the Recycling of Foodwaste Leachate as External Carbon Sources Using Microbubble

마이크로버블을 이용한 음폐수의 외부탄소원으로서의 재활용 가능성 연구

  • Received : 2015.11.23
  • Accepted : 2016.06.09
  • Published : 2016.08.01


The purpose of this research was to examine the possibility on the recycling of foodwaste leachate as external carbon sources using microbubble. The following operating conditions were selected: pressurizing tank 3 bar, circulation flow rate 3.65 LPM, and air flow rate 0.3 LPM with batch type. Microbubble contact time of 18 hours is optimal time to satisfy the recycling of foodwaste leachate as external carbon sources with batch type. HRT 18 hours came up to standard for external carbon sources, except for T-P concentration with continuous type. Coagulants need to be used for removal of dissolved phosphorus concentration by more than 88.5% of the total phosphorus concentration. The VFA was influenced by the organic decomposition rate and the concentration in the aerobic condition. It was considered that the VFA was needed for selection the optimal HRT or the addition of acid fermentation process in order to meet recycling standard of foodwaste leachate.


Foodwaste leachate;Microbubble;External carbon sources;Wastewater treatment


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