Xuzhou Yongcheng Environmental Engineering Equipment Co., Ltd.

Rainwater recycling system?/Reasons for rainwater collection:?/???Due to the rapid development of urbanization, the impermeable areas of roads, buildings, etc. are expanding. On the one hand, rainwater can no longer penetrate into the ground to replenish groundwater, and the severe overexploitation of groundwater has worsened the water environment and ecological environment around the city. On the other hand, during heavy rains, runoff quickly collects, causing ground water accumulation and local urban flooding. Urban water is in short supply, and problems such as water environment deterioration, ecological environment damage, and urban heavy rain and flooding have become increasingly prominent. ??????If during urban construction, attention is paid to the development of rainwater collection and utilization projects, and the originally drained rainwater is retained and used, it will not only increase water resources, but also be a good measure to save tap water. At the same time, through the extensive development of rainwater collection and utilization, rainwater is retained or seeped back into the ground, reducing drainage and mitigating the threat of urban flood disasters. Therefore, groundwater can be replenished, the water environment can be improved, and the ecological environment can be restored. It can be said that rainwater collection and utilization is one of the important measures for sustainable utilization of urban water resources. /Methods of rainwater collection: ??/, Underground rain storage tanks are used to collect rainwater from roofs, courtyards and floors. The collected rainwater is mainly used for toilet flushing, car washing, greening water, landscape water or fire-fighting water, etc. The structure of the rain storage tank is mainly made of reinforced concrete, and is equipped with devices such as initial rainwater removal, filtration, and sedimentation tanks. The volume scale can range from cubic meters to cubic meters depending on the situation. This kind of rain storage tank also requires a collection and transportation system. Therefore, it has high technical requirements and a large investment. It needs to be included in the construction plan or financed for construction. It is suitable for government compounds, family areas of enterprises and institutions, street residential areas and various development zones. ?/??????, ground rain storage containers (barrels, tanks), mostly used to collect roof rainwater. The collected rainwater is mainly used for courtyard sprinkling, watering flowers and plants, and saving tap water. Rain storage containers are mainly iron barrels, plastic cans and other containers, and their volumes are generally less than cubic meters. Depending on the use of the water, installation of an initial rainwater remover may or may not be considered. This rain storage device can be directly connected to the rainwater pipe, is simple to make, and is suitable for use in general residential buildings, bungalows or courtyards. /Methods for rainwater to seep back into the ground: ?/?, permeable ground infiltration. Replace impermeable floor tiles with permeable bricks, absorb rainwater through the pores of the permeable bricks, and lay a filter layer composed of gravel, gravel, and sand under the permeable bricks to allow rainwater to penetrate into the ground. ??/, seepage well penetration. Lead the rainwater pipe into the soakaway well and seep into the ground. ?????Use lawn infiltration to build a high edge of about one centimeter around the lawn, or lower the lawn ground to create a sunken green space to absorb and re-infiltrate rainwater. ?Rainwater utilization system:/Rainwater utilization system generally consists of rainwater collection and storage part, rainwater purification processing part, and rainwater utilization part. The two links of rainwater collection and rainwater utilization determine the processing technology and process of rainwater treatment and purification. Each part of the rainwater utilization system has many important links that need to be controlled, which determine the differences in rainwater utilization processes. ?/?, ?Due to the non-uniformity in the quantity and quality of rainwater, its collection and utilization are selective and irregular?/?, ?Since the reuse methods of rainwater have different uses, its recycling There are different differences in the water quality standards used? There are different treatment processes for different regions, water sources and reuse purposes. /?Rainwater collection Rainwater collection is to use rainwater collection pipelines to centrally store rainwater in various parts of the building. /However, due to many factors such as the location of rainwater collection and the intensity, duration, and amount of rainwater, the water quality of rainwater changes, and the degree of change is large, so it must be differentiated. ?/???. According to the location of rainwater collection, it can be divided into three parts for collection: roofs, roads and green spaces. The quality of the water is also in descending order. Generally, roof rainwater is relatively cleaner than roads and green spaces. Since the degree of contamination on the roof is lower, there is less dust and pollutants on the surface, and the material content washed down by rainwater is much less than that on roads and green spaces. Therefore, rainwater collection is very important. should be given priority. ?/???, according to the rainfall duration, it can be divided into two parts: initial waste disposal and later collection. ????According to the nature of rainfall components, it can be divided into two forms: general rainfall and acid rain. Due to the pollution of the atmosphere caused by the development of modern industry, many places have dealt with relatively serious acid rain. The value of rainwater is low (generally between 3 and 3-) and cannot be collected as a recycled water source, so it must be discarded.