Insufficient funding largely hinders the advancement of urban rainwater collection.

Zinc deficiency is a significant bottleneck affecting rainwater collection. Although the operation and maintenance costs of rainwater recycling equipment are relatively low, the initial investment required is quite high. A project typically necessitates a one-time investment of tens to hundreds of thousands of yuan.GovernmentFinancial support is limited, with most investments requiring the investment body to raise funds independently. Currently, there are difficulties in the channels for returning social capital investments, and the recovery cycle is long, usually taking over a decade, thereby insufficient motivation for the entry of market funds.

Developers can incorporate rainwater recycling projects into the construction of their land plots, such as the construction of permeable pavements and sunken green spaces. These initiatives control surface runoff through rainwater collection and reuse, as well as increasing permeable areas. In newly developed urban areas, the proportion of permeable surfaces should not be less than 40%; regions with the conditions should gradually transform existing paved surfaces to be permeable, enhancing the rainwater retention capacity. At the same time, local governments at all levels...GovernmentThe company has also established regulations and policies regarding the utilization of urban rainwater.

Rainwater recycling is also reflected in other regulatory documents, which have summarized the direction of encouraging rainwater collection.GovernmentIn addition to the 40% permeable ground surface area ratio requirement mentioned in the newly issued "Ten Measures" for water conservation, there are basically no corresponding rigid requirements, and there is a lack of legal provisions with rewards and penalties, making it difficult to standardize and scale up the utilization of urban rainwater resources in our country.

However, many issues may arise during the process, such as insufficient regulatory capabilities of relevant departments and management systems not fitting real-world factors, which can hinder the substantial implementation of urban rainwater collection. Due to the insufficient emphasis placed by management on the reuse of urban rainwater resources and the lack of corresponding stringent requirements, there is an objective lag in the construction of regulatory capabilities, leading to a widespread occurrence of violations or disguised violations, such as setting up "miniature" rainwater collection and utilization systems to pass inspections, etc. This has resulted in a尴尬 situation where the reuse of urban rainwater resources is characterized by "a lot of noise but few results." Additionally, the entire process of urban rainwater resource reuse involves multiple departments such as urban construction, water conservancy, environmental protection, and quality inspection, with a lack of coordination mechanisms between departments, making regulatory efforts rather weak.