Analysis of rainwater resource utilization in a residential district

Rainwater is an effective resource for water shortages,and rainwater utilization draws more and more attenton,to green watering,pouring roads and landscape water in residential districts.The potential of rainwater utilization is analyzed,and furthermore,available rainwater volume and demand of rainwater quantities are also calculated in this paper.It is found that the available rainwater volume and miscellaneous water demand are 20773.3m3 and 44331.6m3,respectively.Rainwater volume is about 47 percent of the total miscellaneous water demand in this district.Meanwhile,in this paper the patterns of rainwater utilization are designed.Collection system of rainwater is important,especially for the green belt of top garage.As a collection method with plastic drainage basin is characteristic of waterproof,keeping soil moist and ventilating.In this way,the collected rainwater can be reserved in artificial lake,and then utilized by simple treating.