| abstract |
The invention relates to a water purification type water permeable brick and a preparation method thereof, wherein the water permeable brick comprises the following components in parts by weight: 35-45 parts of fly ash, 95-125 parts of large-particle aggregate, 10-15 parts of gypsum, 15-20 parts of powder polyaluminium chloride, 35-46 parts of cement, 0.3-0.5 part of aluminum powder, 0.1-0.3 part of steel fiber, 5-10 parts of nano titanium dioxide coating and 15-30 parts of water; the large-particle aggregate comprises the following components in parts by weight: 40-55 parts of coarse sand, 25-35 parts of zeolite and 25-35 parts of granular activated carbon. Compared with the prior art, the invention can efficiently remove pollutants in water, can synchronously remove nitrogen and phosphorus, has simple preparation method, and is suitable for sponge city construction engineering. |