In recent years, many cities in our country have been hit by heavy rain, the road area is severe, the traffic is severely blocked, and even the paralysis is reached, which has greatly affected people's daily travel. People once laughed and said, "See the sea." Why is it that the larger the city and the denser the population, the simpler the situation of large-scale water accumulation and traffic congestion? What kind of drainage system does our city need to keep people's normal life?
According to relevant experts, it was because the original rivers and wetlands were gone, and the ground that could have penetrated the water had become impervious cement ground, which damaged the natural drainage system. In order not to prevent the development of the city and maintain people's normal days, a new drainage system is urgently needed to replace the original drainage systems.
"Self-cleaning permeable bricks" can deal with the problems of standing water and drainage systems in cities.
Self-cleaning permeable brick is the first domestic application of photocatalyst technology in concrete permeable floor tiles. Under the light of light, photocatalysts will undergo a photocatalytic reaction similar to the photosynthetic effect, and free radicals and active oxygen with strong oxidation ability will occur. , Has a strong photo-redox function. It can oxidize and decompose various organic compounds and some inorganic substances, and decompose organic pollutants into non-polluting water (H2O) and carbon dioxide (CO2). Therefore, it has strong anti-fouling and self-cleaning functions, and purifies air and water. It is useful The problems of simple blockage of pores of permeable floor tiles and pollution to urban soils have been addressed.
According to the developers, in a local air area of 13,000 square meters, using self-cleaning permeable floor tiles, the content of nitrogen oxides can be reduced by more than 45% than before use. In the test, we soaked the self-cleaning permeable floor tiles with engine oil to make them not permeable, and then exposed to the sun for a week. These pores opened naturally and began to permeable, and did not cause any secondary pollution together. It accords with ecological principles and respects. Natural law, under the premise of giving priority to ecological functions, select appropriate technical measures to optimize the data and structural system of the ground pavement, fully explore the ecological potential and environmental benefits of the water-permeable pavement, and maintain the city including the urban ground pavement A virtuous cycle of natural ecosystems. Typical urban "psoriasis" chewing gum is generally difficult to remove on the floor tiles, while self-cleaning permeable floor tiles fall naturally after two weeks.
Undoubtedly, "self-cleaning permeable bricks" are now our country's treatment of urban drainage systems, thorough removal of sewage, dredging of traffic after heavy rain, and improvement of the urban environment have irreplaceable effects. It is hoped that this new research result can be quickly applied to urban construction and thoroughly deal with the problem of urban waterlogging in China.