The core advantage of applying the PP module rainwater regulation and storage tank system lies in high space utilization, shortened construction period, and reduced whole-life cycle cost. Meanwhile, it features environmental protection and flexible adaptability, which can effectively address urban waterlogging and water resource shortage.
Traditional concrete water storage tanks require large excavation space and have high demands on site shape. The PP module adopts a modular splicing design, which can be flexibly combined according to the actual size of the site, and can even be adapted to irregular plots or narrow underground spaces of buildings.
Compared with traditional concrete tanks, the PP module system can save about 30% of the floor area, making it particularly suitable for scenarios with tight land resources such as urban core areas and transportation hubs.
PP modules are factory-prefabricated products. On-site operations only involve foundation treatment, module splicing, and earth backfilling, without going through long processes like formwork erection, pouring, and curing required for concrete tanks.
Data from practical projects shows that the construction period of the PP module rainwater regulation and storage tank is reduced by more than 50% compared with traditional concrete tanks. It can be put into use quickly, minimizing impacts on surrounding traffic and residents' lives.
In the initial construction stage, the PP module system does not require a large number of labor forces or large-scale equipment, resulting in lower labor and machinery costs. In the later maintenance stage, its detachable and repairable characteristics avoid large-scale excavation during the maintenance of traditional concrete tanks.
The PP material is acid and alkali resistant as well as corrosion resistant, with a service life of more than 30 years. It does not need frequent anti-corrosion treatment, and the whole-life cycle cost is about 20% lower than that of traditional concrete tanks.
PP modules are mainly made of recyclable polypropylene materials. The production process generates low carbon emissions, and they can be recycled and reused after being discarded, reducing construction waste pollution.
During the rainwater regulation and storage process, the system can be equipped with filtration and disinfection components to purify rainwater. The purified rainwater can be used for green irrigation, road flushing, etc., replacing tap water and saving a large amount of water resources for the project every year.
The gap rate between PP modules is high (about 95%), providing a large water storage capacity, which can quickly collect and temporarily store surface runoff during rainfall.
In heavy rain, the system can reduce more than 85% of surface runoff, preventing rainwater from directly pouring into the municipal pipe network, significantly reducing the risk of urban waterlogging and ensuring the normal operation of traffic and residents' lives.
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