A Simultaneous Denitrification and Phosphorus Sewage Treatment Device Using Immobilized Microbial CASS
A technology of immobilized microorganisms and synchronous nitrogen and phosphorus removal, applied in the direction of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. Low hydraulic impact load resistance, unstable phosphorus and nitrogen removal effects, etc., to achieve the effect of improving impact resistance, increasing quantity, and shortening reaction time
Inactive Publication Date: 2014-10-29
中山市子源生物环境科技有限公司
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, in the CASS process based on activated sludge, the microbial concentration is generally 1500-3000mg / L. Although the microbial concentration will increase with the increase of the influent load, after reaching a certain level, the serious loss will make it Unable to continue to increase, resulting in a long generation cycle of nitrifying bacteria is difficult to proliferate
In addition, when the water quantity and quality of sewage fluctuate greatly, the system's ability to resist hydraulic and concentration shock loads is low, which is not suitable for the increase of biomass and the growth and proliferation of advanced microorganisms, resulting in unstable phosphorus and nitrogen removal effects
In addition, in the traditional CASS process, in order not to disturb the sludge layer deposited on the bottom layer and prevent the floating matter on the water surface from being discharged with the water flow, a decanter is usually installed, and the price of the decanter is high, which increases the investment cost
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0025] The present invention will be further described below in conjunction with accompanying drawing description and specific embodiment:
[0026] Such as figure 1 and 2 The shown a kind of immobilized microbial CASS synchronous denitrification and dephosphorization sewage treatment device includes a pool body 1, a water inlet pipe 2 is provided at one end of the pool body 1, and a water inlet pipe 2 is provided at the other end of the pool body 1. The water outlet pipe 3 is provided with a hollow grid reaction box 4 in the described pool body 1, an immobilized microbial carrier 5 is arranged in the described hollow grid reaction box 4, and a There is an aeration device 6 .
[0027] Such as figure 2 As shown, the hollow grid reaction box 4 described in the present invention includes a multi-grid plate 41, and the grid plates are sequentially connected to form a box body 42, and an upper cover is hinged on the box body 42, An accommodating space is provided in the box bod...
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
| Property | Measurement | Unit |
|---|---|---|
| size | aaaaa | aaaaa |
| porosity | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a synchronous denitrification and dephosphorization sewage treatment device for an immobilized microorganism CASS (cyclic activated sludge system). The synchronous denitrification and dephosphorization sewage treatment device comprises a pond. A water inlet tube is arranged at one end of the pond, a water outlet tube is arranged at the other end of the pond, a hollow gridding reaction box is disposed in the pond, immobilized microorganism carriers are arranged in the hollow gridding reaction box, and an aeration device is arranged at the bottom of the pond. The synchronous denitrification and dephosphorization sewage treatment device aims to overcome shortcomings in the prior art, is simple in structure, and is efficient and stable.
Description
technical field [0001] The invention relates to an immobilized microorganism CASS synchronous nitrogen and phosphorus removal sewage treatment device. Background technique [0002] In recent years, with the rapid increase of my country's urban population, more and more nitrogen and phosphorus nutrients have been discharged into water bodies, coupled with farmland runoff, etc., the phenomenon of eutrophication in water bodies has become more and more serious. Therefore, the discharge of urban domestic sewage has become the main control target of water environment problems, and the control of nitrogen and phosphorus is an important control target of urban sewage discharge and water environment protection. my country's "Urban Sewage Treatment Plant Pollutant Discharge Standard" GB18918-2002 implemented on July 1, 2003 has made clear and strict regulations on the discharge standards of nitrogen and phosphorus. CASS (Cyclic activated sludge system) is a full name of cyclic activ...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
Inventor 周林成王引平刘景峰刘红刚赵亚斌
Owner 中山市子源生物环境科技有限公司