Multi-stage aerobic and anoxic coupling bioreactor and sewage disposal method

A bioreactor, super-aerobic technology, applied in biological water/sewage treatment, sustainable biological treatment, water/sludge/sewage treatment, etc.

Active Publication Date: 2009-06-10
GELANTE ENVIRONMENTAL PROTECTION ENG BEIJING CO LTD
View PDF6 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technology only achieves multiple repeated cycles in an aerob

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
  • Multi-stage aerobic and anoxic coupling bioreactor and sewage disposal method
  • Multi-stage aerobic and anoxic coupling bioreactor and sewage disposal method
  • Multi-stage aerobic and anoxic coupling bioreactor and sewage disposal method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: as figure 1 shown. The incoming water is domestic sewage, the flow rate is 0.5 cubic meters per hour, and the incoming water COD is between 200-380mg / L; the length, width, and height of the bioreactor are 2.5m, 0.6m, and 1.2m respectively, and the distribution diameter in the bioreactor is 0.25m There are 6 PVC diversion barrels 102 in total, and the inside and outside of the diversion barrels are filled with mesh honeycomb biological fillers, and a waterfall gas head with a diameter of 0.2m is installed under each diversion barrel. A proper amount of activated sludge was added when the operation was started, and after 15 days of domestication, the effluent COD was 15mg / L.

Embodiment 2

[0024] Embodiment 2: as figure 2 shown. The inner diameter of the bioreactor is 0.75m and the outer diameter is 1.0m. There are 8 PVC diversion barrels 102 with a diameter of 0.25m distributed in the bioreactor. Other experimental conditions are the same as in Example 1. After 15 days of acclimatization, the effluent COD was 18mg / L.

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 relates to a multilevel aerobic and anoxic coupling sewage biochemical treatment method, which belongs to the field of environment-friendly water treatment. The invention discloses a biochemical reactor, which is provided with a plurality of diversion barrels, microbial carriers which are arranged inside and outside the diversion barrels and aeration devices which are arranged inside the diversion barrels. The method for treating sewage by utilization of the biochemical reactor is to provide the gas stripping amount for aeration in the diversion barrels through the aeration devices, to form aerobic biochemical environments inside the diversion barrels and anoxic environments outside the diversion barrels, to recycle the sewage in the aerobic environments inside the diversion barrels and the anoxic environments outside the diversion barrels, to realize aerobic and anoxic coupling, and to realize recycle between a plurality of aerobic and anoxic coupling areas by the method of assembling the plurality of the diversion barrels. The multilevel aerobic and anoxic coupling sewage biochemical treatment method can improve the efficiency of the biochemical reactor and reduce the sludge discharge of the biochemical reactor, and can particularly realize the multi-level nitrification and denitrification biochemical process in the same biochemical reactor.

Description

technical field [0001] The invention belongs to the field of environmental protection sewage treatment, in particular to a high-efficiency biochemical sewage treatment method that couples multi-stage aerobic and anoxic repeated cycles. Background technique [0002] The biochemical processes in the biochemical water treatment methods in the known technology include aerobic, anaerobic and anoxic processes. Anoxic and aerobic processes are often combined in known techniques. The most common sewage treatment method combined with anoxic and aerobic is to make sewage or anaerobically treated sewage enter the anoxic pool first, then enter the aerobic pool, and then return part of the water produced in the aerobic pool to the Anoxic pool. Such an aerobic-anoxic coupling method can realize the redox process of pollutants in sewage. In particular, when the raw water contains amine compounds, the amine compounds can be oxidized into nitrite and nitrate through aerobic reaction under...

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): C02F3/12
CPCY02W10/10
Inventor 孟广祯杨昭王黎明
Owner GELANTE ENVIRONMENTAL PROTECTION ENG BEIJING 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