Anoxia, drop aeration, artificial wetland combination type small-scale sewage dephosphorizing and denitrifying method

A technology of artificial wetland and falling water, which is applied in the direction of biological water/sewage treatment, water/sludge/sewage treatment, aerobic and anaerobic process treatment, etc. The problems of high civil construction costs can save the power consumption of the blower, reduce the organic load, and reduce the operating cost.

Active Publication Date: 2006-06-21
SOUTHEAST UNIV
View PDF0 Cites 24 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the septic tank can greatly reduce the concentration of suspended solids, the effluent is still difficult to meet the comprehensive sewage discharge standard
The non-powered sewage treatment device improved by septic tank has high civil construction cost, cannot adapt to the fluctuation of water quality and water quantity during operation, and it is difficult to ensure the qual...

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
  • Anoxia, drop aeration, artificial wetland combination type small-scale sewage dephosphorizing and denitrifying method
  • Anoxia, drop aeration, artificial wetland combination type small-scale sewage dephosphorizing and denitrifying method
  • Anoxia, drop aeration, artificial wetland combination type small-scale sewage dephosphorizing and denitrifying method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The sewage flows into the feed pool 1 and then enters the anaerobic pool 2. The anaerobic pool can be oval or square. It adopts a fully enclosed underground setting. The sewage stays in it for about 24 hours. It is decomposed by anaerobic fermentation and the organic matter Concentration decreased, biochemical properties increased. There is a manhole on the anaerobic tank, the manhole covers the cover plate, and the cover plate is provided with a biogas pipe, which can collect and utilize the biogas. Then the sewage passes through the discharge tank 3 on the right side of the anaerobic tank 2 and is lifted by a water pump into the falling water oxygenation contact oxidation tank 4. The falling water oxygenation contact oxidation tank 4 is set overhead, which can be processed by steel plate or PVC plastic, or concrete Prefabrication is generally arranged in the form of two to four pools connected in series, and the installation height of each pool is lowered in turn. Th...

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

A method of phosphorous removal and denitrification for small-sized wastewater combined with anaerobic, dropping oxygenating and artificial wetland, firstly introducing the wastewater into feeding tank(1), then into anaerobic tank(2), and entering into the dropping oxygenating contact oxidation tank through discharging tank(3) by water pump, and finally into the artificial wetland(5); the dropped biological membrane in the dropping oxygenating contact oxidation tank(4) is discharged into anaerobic tank(2) through sludge pipe(6); prolonging the anaerobic tank(2) retention time if the organic matter concentration of the inletting water is high and shortening the retention time if the concentration is low, reducing the organic matter concentration to be below 100mg/l by anaerobic action; the dropping oxygenating contact tank(4) is cascaded to two-tank or four-tank form. The method in this invention reduces the running cost.

Description

technical field [0001] The invention is mainly used for the treatment of small-scale domestic sewage in villages and towns, and is also suitable for the treatment of small-scale domestic sewage in units that cannot utilize urban sewers, and belongs to the technical field of environmental protection water treatment. Background technique [0002] At present, the technologies used for small-scale domestic sewage treatment in rural areas mainly include septic tanks, land treatment and stabilization ponds, activated sludge and biofilm methods. Although septic tanks can greatly reduce the concentration of suspended solids, it is still difficult for the effluent to meet the comprehensive sewage discharge standards. The non-powered sewage treatment device improved by septic tank has high civil construction cost, cannot adapt to the fluctuation of water quality and water quantity during operation, and it is difficult to guarantee the quality of effluent water. There are many forms o...

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): C02F3/30C02F3/34C02F101/10
Inventor 吕锡武朱光灿李先宁吴磊荆肇乾潘羽忠
Owner SOUTHEAST 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