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- W861669162 abstract "Abstract This study aims to estimate the biological decomposition capacity of MPC(MicroorganismPorous-Concrete). MPC has specific surface area formed by inside pores, and bio compoundwas added to those pores to reduce pollutants loading. To evaluate the water purificationcapacity of MPC, we carried out the comparative studies using different media types[GPC(General Porous-concrete), CPC(Compound porous-concrete), LPC(Lightweightaggregate porous-concrete)] under the condition of CFSTR, and different retention times (30, 60and 120 min). We also estimated the purification capacity of MPC under differentconcentrations of pollutant loadings. The MPC showed higher efficiency in water purificationfunction than other conventional porous concretes with efficient decrease rates of SS, BOD,COD, and nutrient concentrations. In the comparison experiment for different retention times,MPC showed the highest removal efficiency for all tested pollutants in the longest retentiontime(120 min). In the long period test, the removal efficiencies of MPC concrete were high until100 days after the set up of the operation, but began to decrease. Outflow flux was invariablecompared with inflow flux so that extra detention time for media fouling such as back washingis not needed. But the results suggested that appropriate management is necessary for long-term operation of MPC. As the final outcome, MPC using bio organisms is considered to beefficient for stream water purification when they used as substrates for artificial river structure.Keywords : Porous-concrete, Water quality, Microorganism, Biological excipient" @default.
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- W861669162 date "2011-12-01" @default.
- W861669162 modified "2023-09-28" @default.
- W861669162 title "Research on improvement of water purification efficiency by porous concrete using bio-film" @default.
- W861669162 doi "https://doi.org/10.14249/eia.2011.20.6.815" @default.
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