System and method for ecological treatment and utilization of urban rainwater
A technology for ecological treatment and rainwater, applied in the direction of runoff/rainwater treatment, sustainable biological treatment, biological water/sewage treatment, etc., can solve problems such as rainwater treatment facilities and methods, limitations of collected rainwater utilization, etc., and achieve treatment Low operating cost, good application value and low construction cost
Active Publication Date: 2016-10-12
QINGDAO UNIV
View PDF6 Cites 6 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The above two published patents have proposed certain solutions for rainwater collection and utilization, but neither mentioned the treatment facilities and methods for rainwater, and the utilization of collected rainwater is limited.
[0005] At present, the utilization of urban rainwater in my country is in the exploratory stage, and there is a big gap in rainwater collection and mature treatment technologies
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0052] A business district adopts the patent of the invention to process and utilize rainwater collected in the business district, including water collection wells, grilles, vertical filter tanks and micro-reservoirs. Among them, some design parameters of the system are as follows:
[0053] Vertical filter tank, the gravel selected in the gravel area is fine gravel, with an average particle size of 4mm, and the volume of the gravel area accounts for 1.2% of the entire filter volume; the gravel layer is coarse gravel, with an average diameter of 15-20mm, and the gravel The thickness of layer is 6cm, accounts for 5% of whole filter tank volume; Described zeolite layer, the average particle diameter of zeolite is 3~5mm, and the thickness of zeolite layer is 40cm, accounts for 30% of whole filter tank volume. The miniature reservoir has an elliptical shape and a depth of 1.5m. The shore plants are cattails and cannas. Floating bed plants are canna, barracuda and parasol grass. ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a system and a method for ecological treatment and utilization of urban rainwater. The system comprises a water collecting well, a vertical ecological filter tank and a reservoir which are communicated with one another in sequence through pipelines, wherein the water collecting well is used for precipitation and pre-treatment of collected rainwater, so as to remove part of suspended particles; a grill for removing suspended matter, not easy to precipitate, in the rainwater is arranged on the communication pipeline between the water collecting well and the vertical ecological filter tank; the vertical ecological filter tank comprises a tank body; a support layer, a ceramsite layer, a zeolite layer and a gravel layer are arranged in the tank body in sequence from the bottom up; gravel areas are arranged on the two sides of the zeolite layer and those of the gravel layer; aquatic plants are planted in the zeolite layer; a water distributor is arranged at the upper part of the tank body; a drain pipe is arranged at the bottom of the tank body; the reservoir comprises a reservoir body; a water inlet communicated with the drain pipe is formed in the reservoir body; aeration devices are arranged in the reservoir body.
Description
technical field [0001] The invention relates to a sewage treatment technology and method, in particular to a system and method for urban rainwater ecological treatment and utilization, and belongs to the technical field of environmental protection. Background technique [0002] Rainfall is the main source of surface runoff, an important part of the water cycle in the urban ecosystem, and plays a very important role in regulating and replenishing regional water resources and improving the urban ecological environment. However, the expansion of the urban construction area in recent years has led to an increase in the surface hardening area, which greatly reduces the chance of rainwater seeping down to form soil water and groundwater. Most of the rainwater is directly collected to form surface runoff, causing urban rainwater runoff velocity, The increase in flow and runoff peaks has brought great pressure on urban flood control and drainage. At the same time, due to atmospheri...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): C02F9/14C02F3/32
CPCC02F3/32C02F9/00C02F2001/007C02F2103/001C02F2303/24Y02W10/10
Inventor 孔范龙李纪华郗敏李悦杨玲訾园园秦培瑞李奇霏
Owner QINGDAO UNIV