Biological detention pond for improving ability of nitrogen and phosphorus removal

A bioretention tank, nitrogen and phosphorus removal technology, applied in the field of bioretention tanks, can solve the problems of unstable nitrogen and phosphorus removal effect, low removal efficiency, increased cost, etc., to achieve improved removal efficiency, improved adsorption, and increased discharge speed Effect

Inactive Publication Date: 2019-05-28
JIANGSU UNIV
View PDF8 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing structure has an unstable removal effect on nitrogen and phosphorus, and the removal efficiency is low, and improving the packing will increase the cost, which is not advisable in actual engineering

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Biological detention pond for improving ability of nitrogen and phosphorus removal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0028] In describing the present invention, it is to be understood that the terms "central", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "axial", The orientation or positional relationship indicated by "radial", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description , rather than indicating or implying that the device or elem...

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

No PUM Login to view more

Abstract

The invention provides a biological detention pond for improving the ability of nitrogen and phosphorus removal. The biological detention pond includes a water reserve and a detention pond body structure arranged on the lower part of the water reserve, the detention pond body structure includes a planting soil layer, a packing area and a pebble bed from top to bottom, wherein the packing area is internally provided with a plurality of layers of impermeable geotechnical cloths, the detention pond body structure is divided into a plurality of layers of corridors, one ends of the impermeable geotechnical cloths are connected to the inner wall of the detention pond body structure, the other ends of the impermeable geotechnical cloths are free ends, a serpentine water seepage passageway is formed among the multiple layers of corridors, and the multiple layers of corridors are filled with different fillers correspondingly; and the pebble bed communicates with the water seepage passageway, and a perforated drainage pipe is arranged in the pebble bed. According to the biological detention pond for improving the ability of nitrogen and phosphorus removal, through design of the multiple layers of corridors, the hydraulic retention time of rainwater in the detention pond can be increased, phosphorus removal is facilitated, entering of oxygen can be isolated, an anoxic zone and an anaerobic zone are arranged on the lower part of the biological detention pond, and nitrogen removal is facilitated.

Description

technical field [0001] The invention relates to the technical field of rainwater treatment, in particular to a bioretention pond for improving the ability of nitrogen and phosphorus removal. Background technique [0002] With the country vigorously developing the construction of sewage treatment plants, point source pollution in cities has been effectively controlled. Compared with point source pollution, an important reason for water eutrophication is that rainwater carrying a large amount of pollutants cannot be obtained. Purification is discharged directly into natural water bodies. Since the 1950s, the eutrophication of receiving water bodies such as rivers and lakes has become a major environmental problem faced by all countries. With the development of urbanization, more and more nitrogen, phosphorus and other pollutants are carried in rainwater, which is harmful to the water environment. The damage is getting worse. The aggravation of urban waterlogging caused by he...

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
no application Login to view more
IPC IPC(8): C02F9/14C02F101/10C02F101/38
Inventor 黄勇强赵文亮刘灿灿李武举
Owner JIANGSU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap