| 摘要 |
<p>PURPOSE: A porous concrete composition using complex effective microorganisms and a functional carrier and a porous concrete block for restoring the ecology of a river are provided to purify polluted river water for a long period of time by activating the complex effective microorganisms. CONSTITUTION: A porous concrete block includes 10.1-25.1 weight%, 61.8-86.0 weight% of coarse aggregate, 2.1-6.1 weight% of water, 1.3-8.4 weight% of porous lightweight stone, and 0.04-1.50 weight% of admixture. The porosity of the block is 10-30 volume%. 5-22 weight% of complex effective microorganisms is filled in the porous part of the porous lightweight stone. The complex effective microorganisms mix lactobacillus bacteria, bacillus subtilis bacteria, burkholderia cepacia bacteria, pseudomonads, and yeast at the volume ratio of 3:3:2:1:1.</p> |
