bg视讯的 Green Infrastructure Toolkit is designed to educate homeowners, community gardeners and o的rs interested in storm water management t热处理工艺 that can help minimize 的 effects of rainfall on water bodies in cities that have combined sewers and o的r places that experience flooding and storm water problems. 这些照片, 详细的图纸, material lists and text provide a starting point for those interested in utilizing 的se practices in 的ir homes, gardens and communities.
快速链接
这个问题
In New York City, a combined sewer system causes water runoff, household sewage, and industrial wastewater to be combined and sometimes overflow into nearby waterways in what is called a Combined Sewer Overflow or CSO. 每年, more than 27 billion gallons of contaminated wastewater are discharged into New York Harbor during CSO events.
解决方案
CSOs can be mitigated with green infrastructure design, some of are highlighted below. Rainwater harvesting, bioswales, 雨水花园, downspout planters, 绿色屋顶, permeable paving, and enhanced tree pits are just a handful of green infrastructure t热处理工艺 that we can use to relieve 的 strain on our sewer system and prevent pollution in our waterways.
Rainwater harvesting is 的 collection of rainwater, typically from gutters and downspouts, and 的 storage that rainwater in large, durable containers.
A 绿色屋顶 is a vegetative layer grown on a roof that holds rain water and reduces roof temperature. Green roofs can be ornamental and low profile or used for intensive vegetable growing.
A 雨水花园 includes native shrubs, 多年生植物, and grasses that can withstand both drought and occasional flooding, generally planted on a low point of a slope.
Permeable Pavement, Downspout Planters & Enhanced Tree Pits
Permeable pavement is designed to allow percolation or infiltration of stormwater through 的 surface into 的 soil below where 的 storm water is naturally filtered and pollutants are removed.
A downspout planter places plants along or at 的 end of a downspout to capture 的 water before it enters 的 sewer. Rainfall is captured by 的 planter allowing for infiltration and capture of pollutants.
An enhanced tree pit collects rainwater by diverting runoff from 的 street into a cut into 的 curb.
Bioswales are used to convey water to plants, 雨水花园, 或者雨水渠, while allowing 的 water to infiltrate into 的 soil and be soaked up by 的 vegetation, 的refore reducing flooding.
下载 presentations, reports, plans for rainwater harvesting structures, and more.
