Biological aerated filter and process

The technology of aeration biological filter and aeration head is applied in the field of environmental protection science and engineering, which can solve the problems of reducing the treatment efficiency of organic pollutants and reducing the removal rate.

Active Publication Date: 2010-02-10
CISDI ENG CO LTD
View PDF0 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, along the water inlet direction, due to the continuous reduction of organic matter and dissolved oxygen, the biomass is also continuously reduced, so the removal rate of organic matter is also continuously reduced, which greatly reduces the treatment efficiency of organic pollutants

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 aerated filter and process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] The present invention is described in detail in conjunction with accompanying drawing:

[0010] A filter plate 2 is installed in the biological aerated filter, and a support layer 3 is installed on the filter plate 2. The first stage of the support layer 3 is filled with filler 4, and the second stage of the support layer 3 is placed with filler 6. The filter plate 2 is connected with the support layer. An air pipe 10 and a special single-hole membrane are placed between the supporting layers 3, there is a water hole 5 in the upper part between the two-stage biological aerated filter, and a perforated mud discharge pipe 9 is provided at the bottom of the two-stage biological aerated filter. In the biological aerated filter, the water inlet pipe 1 is installed at the lower part of the filter plate 2; in the second-stage biological aerated filter, the water inlet pipe 8 and the water outlet pipe 7 are installed at the lower part of the filter plate 2, and the water outlet ...

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 belongs to the technical field of environmental protection science and engineering, and in particular relates to a biological aerated filter for sewage treatment and a process. The biological aerated filter adopts a mode of two-stage series connection; a filter plate is arranged in the biological aerated filter; support layers are arranged on the filter plate; a first stage positioned above the support layers is provided with fillings; a second stage positioned above the support layers is provided with the fillings; an air pipe is arranged between the filter plate and the supportlayers; the upper part between the two stages of the biological aerated filter is provided with a water pore; the bottoms of the two stages of the biological aerated filter are provided with perforation spoil disposal pipes; a water inlet pipe is arranged at the lower part of the filter plate through the first-stage biological aerated filter; a back flush water inlet pipe and an outlet pipe are arranged at the lower part of the filter plate through the second-stage biological aerated filter, and a back flush outlet pipe is arranged at the upper part of the filter plate. The biological aeratedfilter has the process technology for sewage treatment with less land occupation, investment saving, low operating cost, high efficiency and convenient operation and management, and can be widely applied to the sewage treatment.

Description

technical field [0001] The invention belongs to the field of environmental protection science and engineering technology, and in particular relates to a biological aeration filter for sewage treatment and a process thereof. technical background [0002] Biological aerated filter is a new sewage treatment process developed on the basis of ordinary biological filter in the late 1980s and early 1990s. The biofilter has two notable features: one is that it has good particle filtration performance and bioaccumulation performance; the other is that due to the accumulation of biofilm, the filter needs to be backwashed in time to reduce excessive head loss. There are two kinds of common aerated biological filters in engineering according to the flow direction of water: 1. The Biocarbone downward flow biological filter developed by OTV company in France is characterized by the opposite direction of water flow and air flow, and downward flow of water. The air flow is upward; it is ea...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/12C02F3/30
CPCY02W10/10
Inventor 张晓卫刘惠江开伟刘耀明肖怀德李翔林程保
Owner CISDI ENG CO LTD
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