Complex biological filter for synchronously treating sewage and off odor

A composite biofilter and synchronous treatment technology, applied in aerobic process treatment, anaerobic digestion treatment, sustainable biological treatment, etc. Air pollution and other issues can be achieved to save aeration energy consumption, improve removal efficiency, and reduce operating costs

Inactive Publication Date: 2010-11-10
王鹤立
View PDF0 Cites 33 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, sewage treatment plants also have "exhaust gas" problems, that is, sewage treatment structures, especially the problem of foul smell emitted by sludge treatment units, and the problem of dioxin air pollution caused by sludge incineration treatment
Many urban sewage treatment plants are adjacent to residential areas. Because the design of these treatment plants is limited to water purification and neglects the control of air pollution, the surrounding living environment has seriously deteriorated. Measures should be taken as soon as possible to reduce the impact of sewage

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
  • Complex biological filter for synchronously treating sewage and off odor
  • Complex biological filter for synchronously treating sewage and off odor
  • Complex biological filter for synchronously treating sewage and off odor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0025] A compound biofilter is used to treat the domestic sewage of a university campus in Beijing, with a daily treatment volume of 0.5m 3 , The quality of sewage influent is shown in Table 1.

[0026] Table 1 Water Quality of Campus Domestic Sewage

[0027]

[0028] Odor is generated by the gas distribution of steel cylinders, and the gas velocity is controlled at 100m during the test 3 / h, NH in intake air 3 、H 2 The concentrations of S and methyl mercaptan are respectively 8.65mg / m 3 、27.8mg / m 3 and 0.86mg / m 3 .

[0029] According to the site conditions, the test was carried out near the campus sewage station. The composite biofilter was designed as a column, with a height of 300cm, an inner diameter of 19cm, and an effective volume of about 70L. The filter was divided into three sections from top to bottom, and each section was 80cm high; The two sections are in the aerobic state of drip filtration, and the bottom section is in the anoxic submerged state.

[00...

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

For a long time, sewage plants are troubled by the problems of large energy consumption, high operating cost, foul odor generation and the like. Therefore, the invention provides a complex biological filter which can make use of a microbial metabolism to synchronously treating sewage and off odor, and comprises the following characteristics of: greatly saving aeration energy consumption and reducing the operating cost by supplying oxygen in a trickling filtration mode; forming an aerobic section and an anoxic section in the same biological filter by optimizing the structure of the biological filter, and supplementing a carbon source through water inflow distribution to ensure that the removal efficiency of total nitrogen is improved; improving the removal efficiency of total phosphorus in the sewage through enhanced phosphorus removal of a filling material; and saving a secondary sedimentation tank because the upper part of the complex biological filter generates a small amount of excess sludge and the anoxic section on the lower part can further perform filtration and interception.

Description

Technical field: [0001] The patent of the invention belongs to the technical field of environmental protection equipment and relates to an improvement of sewage treatment process equipment. Background technique: [0002] Wastewater treatment is an energy-intensive integrated technology. For a long time, problems such as high energy consumption and high operating costs have seriously hindered the construction and operation of urban sewage plants in my country. The energy consumption of urban sewage treatment plants in my country is mainly used for sewage biological treatment and sludge treatment units, accounting for more than 60% of the direct operating costs of sewage plants. Among them, the energy consumption of sewage biological treatment is mainly concentrated in the blower room for oxygen supply of secondary treatment. It accounts for more than 70% of the energy consumption of the whole plant. Therefore, the research on biological treatment technology with low aeration...

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): C02F3/30C02F3/04C02F3/10C02F3/34C02F3/28B01D53/84
CPCY02A50/20Y02W10/10
Inventor 董启荣匡颖王鹤立王振兴
Owner 王鹤立
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