Study On The Key Technology And Design Of The Sponge Industrial Park

The industrial park was one of the important construction projects in our country in the process of industrialization, and the scale of the industrial park was extremely large area in the world. Whether parks can achieve low impact development was crucial to the realization of China’s basic construction objectives of sustainable development. The shifts of a traditional industrial park into a sponge type industrial park was one of the main parts of the construction of sponge city.Low impact development measures of the industrial park mainly includes the permeable pavement, runoff storage, processing, vertical greening and rainwater utilization. In the present study, the first three aspects were investigated for their related technical parameters, and to design an industrial park as a case. This study presented a design scheme of sponge industrial park. The main findings and conclusions are as follows:The research compared the concrete permeable brick, water permeable brick, silica coated silica sand water permeable brick, stone rubber water permeable brick porosity and permeability coefficient and simulate their corresponding hydrological effects, the main results showed that:the permeable pavement was suitable for frequent rainstorm area; stone rubber permeable pavement led to the most significant peak reduction, and longest flood peak delay time. They were up to 12% and 15min. respectively,The analysis on the water quality of roof rainwater tank of industrial workshop showed that rainwater reservoir water quality was worst in autumn while was best in winter, In winter, water quality was beyond the requirements of class III water standard category, and in spring, summer, autumn the water deteriorated to the class V water standard category.This experiment designed a rain vortex separation manhole and examed the the removal efficiency of different particle size of suspended solids, floating debris and oil. The results showed that:the removal efficiencies of suspended solids, floate and oil removal reached the peak in the velocity domain of 6.3 m3/h ～9.5 m3/h,6.3m3/h-ll.lm3/h, and 7.9m3/h-12.8m3/h, respectively, and led to 80%,90%,80% of removals correspondingly; At the same flow rate,200 and 100 mesh diatomite solution showed a similar removal efficency which was much less than the observed efficiency by using 50 mesh diatomite solution.Taking Storm Water Management Model (SWMM) as the simulation tool, this study focused on the application of the storage of runoff, manhole separation technology, permeable pavement, and the published roof greening, bioretention pool technology, Moreover, the present study compared the low impact development technical scheme selected for Ma’anshan China Metallurgical Industrial Park, and proposed the design scheme of sponge type industrial park. The main effects of the technologies included low the impact of the development had apparent effect on the runoff pollutants reduction leading to a greater than 40% removal; When the return period was set as 10 years, flood peak flow time delayed for 30min, peak flow rate cut for 29%, while in the return period of 0.5 years, flow time delayed for 60min, peak flow rate reduced for 44%.