Wastewater treatment device and wastewater treatment method using same

A wastewater treatment and wastewater technology, which is applied in the fields of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. Effect

Inactive Publication Date: 2012-10-24
青海洁神环境科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

That is, if the amount of water is not adjusted, there is a problem that stable wastewater treatment cannot be achieved due to changes in the load of organic matter

Method used

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  • Wastewater treatment device and wastewater treatment method using same
  • Wastewater treatment device and wastewater treatment method using same
  • Wastewater treatment device and wastewater treatment method using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0098] Set up four bioreactors, in the initial bioreactor (the first tank) set as figure 1 The shown reticular rotating bacillus contact body device (the number of reticular rotating bacillus contact bodies: 30; the diameter of the reticular rotating bacillus contact body 2m; rotation speed (peripheral speed): 31.4m / min). A microbial film with mixed bacillus species as the dominant species is attached to the reticular rotating bacillus contact body. Throwing substances containing trace amounts of silicon and magnesium as growth promoters, and adjusting the dissolved oxygen (DO) to 0.8-1mg / L, so that the mixed bacteria of Bacillus species become the dominant species, and the number reaches 10 9 ~10 11 individuals / ml, accounting for 30% of all microbial species.

[0099] Slaughterhouse wastewater whose load of organic matter changes drastically is introduced into the initial biological reaction tank (sludge water depth: 3m; sludge concentration: 5000mg / L), and is subjected ...

Embodiment 2

[0108] Except that the waste water produced by the manufacture of natto with the load of organic matter changes drastically to replace the slaughterhouse waste water, carry out the same treatment as Example 1, and the BOD of waste water 5 、COD cr , average value of SS, T-N and T-P, and BOD of treated water 5 、COD cr , SS, T-N and T-P maximum values ​​were analyzed. The analysis results are shown in Table 2.

Embodiment 3

[0115] The high-concentration landfill leachate is imported into the initial biological reaction tank (sludge water depth: 5m; sludge concentration: 15000mg / L), using the same equipment as in Example 1, to carry out aeration treatment and by reticular rotary spores Bacillus contact body treatment, and the BOD of wastewater 5 、COD cr , SS, T-N and T-P averages, and BOD of treated water 5 、COD cr , SS, T-N and T-P maximum values ​​were analyzed. The analysis results are shown in Table 3.

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Abstract

The invention relates to a wastewater treatment device and a wastewater treatment method using the same. The wastewater treatment device comprises a plurality of biological reaction tanks, wherein each biological reaction tank comprises wastewater and activated sludge which are introduced to the biological reaction tank; a reticular rotating-type Bacillus contact device is arranged in at least one biological reaction tank; the contact device comprises a plurality of reticular rotating-type Bacillus contacts arranged around a rotation axis side by side at a specified interval; microbial films are attached onto the reticular rotating-type Bacillus contacts; both the microbial films and the activated sludge are microbes with mixed bacteria of Bacillus as dominants; and the lower regions of the contacts are partially soaked in the activated sludge. By using the wastewater treatment device provided by the invention, stable wastewater treatment can be achieved, the installation space of thetreatment equipment can be substantially reduced and the cost is lowered.

Description

technical field [0001] The present invention relates to a waste water treatment device, in particular to a waste water treatment device capable of efficiently treating waste water with varying concentrations of organic matter. The invention also relates to a wastewater treatment method using the wastewater treatment device. Background technique [0002] Conventionally, activated sludge treatment equipment has been used to treat large quantities of wastewater such as domestic sewage. [0003] The so-called activated sludge method refers to the method of putting the activated sludge into the biological reaction tank in advance, and then introducing the waste water, performing air aeration in the biological reaction tank, and performing biochemical treatment in an aerobic environment. [0004] In the past, the activated sludge as the protagonist of the activated sludge method was basically aerobic microorganisms mainly composed of bacteria micelles. In recent years, Bacillus,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
Inventor 柴建中
Owner 青海洁神环境科技股份有限公司
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