Method for digestion and reduction of activated sludge in biochemical tank
A technology of activated sludge and biochemical tank, which is applied in the adjustment method of biological treatment, oxidation treatment of sludge, biological sludge treatment, etc., can solve the problems of heavy metal treatment obstacles, affecting the quality of water treatment, etc., and achieve the effect of dynamic balance.
Active Publication Date: 2019-09-10
刘邦楠
View PDF7 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0008] However, simply reducing the amount of sludge in the biochemical tank cannot solve the problem of continuous enrichment of harmful substances in the tank, and long-term operation will affect the quality of water treatment
There is such a misunderstanding in the prior art: in the process of activated sludge treatment, harmful substances such as heavy metals still mainly exist in the water body, which has caused obstacles to the treatment of heavy metals
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
[0036] Hereinafter, the present invention will be further described in conjunction with the examples, and the examples are only for explanation and not intended to limit the protection scope of the present invention.
[0037] The "surplus sludge" referred to in the present invention refers to the redundant activated sludge in the biochemical tank, and it is activated sludge outside the biochemical tank.
[0038] In the present invention, the "suitable treatment concentration range" of activated sludge refers to the lowest and highest activated sludge concentration required to meet the treatment of sewage. Those skilled in the art can calculate and debug on-site according to the conditions of biochemical reactions and on-site conditions. get. For example, in some embodiments, when the activated sludge method is used to treat sewage, the concentration of activated sludge is too low, such as less than 3000 mg / L, and the sewage cannot be purified. Similarly, if the sludge concent...
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
Login to View More Abstract
The invention relates to a method for treating activated sludge in a biochemical tank. Hydroxyl generators of a first group are arranged in the biochemical tank, and are adjusted to interfere with theproduction mechanism of the activated sludge to control the activated sludge concentration of the biochemical tank to be in a required concentration range. Excess sludge production mechanism interfering includes degrading organic matters in sewage through hydroxyl free radicals generated by the hydroxyl generators to reduce biological activity in the biochemical tank and to prevent increase of the activated sludge; generating a cutting function to crush cell walls of microbes in sewage and the activated sludge so that some microbes generating activated sludge in the biochemical tank lose fertility; allowing the hydroxyl free radical function and the cutting function to reach the whole biochemical tank through turbulence, and oxygenating the tank to allow biochemical reaction to be normally performed. The method can interfere with the production mechanism of the activated sludge before activated sludge generation, and achieves a dynamic balance of the activated sludge concentration inthe biochemical tank. Excess sludge is digested and reduced outside the biochemical tank.
Description
technical field [0001] The invention relates to a treatment method for activated sludge, in particular to a method for digesting and reducing the volume of activated sludge in biochemical pools. Background technique [0002] More than 70% of the sewage in China is treated and purified by the "activated sludge method". Activated sludge is the medium for almost all biochemical reactions to purify sewage. The concentration of activated sludge in the biochemical reaction tank is a very important indicator. Only within a certain concentration range, activated sludge has the ability to purify the pollutants in the sewage, because the activated sludge needs enough bacteria to swallow the pollutants in the sewage. In this process, bacteria grow, reproduce more bacteria, and die; it also makes the sludge grow continuously and grows into the biochemical tank. The concentration of activated sludge exceeds the concentration required for sewage treatment, and excess activated sludge is...
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 Applications(China)
IPC IPC(8): C02F3/12C02F11/06C02F11/04C02F1/72C02F1/34
CPCC02F3/006C02F3/12C02F1/72C02F1/34C02F11/06C02F11/04C02F2305/023C02F2303/06Y02W10/10
Inventor 刘邦楠刘佑华张生明
Owner 刘邦楠