Archives

  • Archives
  • >
  • Home

DOI : ,    Vol.22, No.3, 49 ~ 56, 2014
Title
Tertiary Treatment of Municipal Wastewater using Hybrid Biofilter with Natural Mineral Media
정종태 Jong Tai Jung , 조용현 Yong Hyun Cho , 한상윤 Sang Yun Han
Abstract
Wastewater treatment plants are required to meet the enhanced discharge standards. Various biofilter technology have been proposed treatment of secondary effluent. This research investigated the characteristics treatment by hybrid biofilter with natural mineral and floating media from secondary effluent of municipal wastewater treatment plant. Natural mineral media have a hydrophilic and porous honeycomb structure. This structure is suitable of the attachment and growth of structural advantages for the surface biofilm formation. In the hybrid biofilter experimental, substrate removal rate are COD 29.8%, T-N 21.5%, color 55.4%, respectively. Average particle size of effluent from hybrid biofilter was 13.1㎛ and showed 88.4% for 1~16㎛ of overall particles. Particle removal efficiency was stable more than 16㎛. Method of removal substrate are carried out mechanisms such as high activity of the biofilm in natural mineral media and denitrification of inner part of biofilm as well as ion adsorption capacity. As the result of PAC dosing, the hybrid biofilter showed the PO4-P removal to 0.15mg/L. Therefore, hybrid biofilter through a combination of natural mineral and floating media material can be applied to tertiary treatment process(phosphorus treatment and reuse).
Key Words
hybrid biofilter, natural mineral media, tertiary treatment, reuse, T-P removal
pdf view PDF