An enhanced treatment method and system for complex and high-concentration organic ammonia nitrogen wastewater

A technology for the enhanced treatment of ammonia nitrogen wastewater, applied in the field of environmental engineering, can solve the problems of difficult treatment, slow effect, blockage, etc., and achieve the effect of increasing the degradation time, reducing chroma, and reducing COD

Active Publication Date: 2022-01-18
JIANGXI GAIA ENVIRONMENTAL SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the above-mentioned technical problems in the related art, the present invention proposes an enhanced treatment method and system for complex and high-concentration organic ammonia-nitrogen wastewater, which solves the problems of difficult treatment, slow effect, and long-term blockage of complex and high-concentration organic ammonia-nitrogen wastewater, which can be quickly and efficiently Start and strengthen the treatment of complex and high-concentration organic ammonia nitrogen wastewater, realize the coordinated removal and deep purification of pollutants, and achieve good treatment results under low-cost conditions

Method used

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  • An enhanced treatment method and system for complex and high-concentration organic ammonia nitrogen wastewater
  • An enhanced treatment method and system for complex and high-concentration organic ammonia nitrogen wastewater
  • An enhanced treatment method and system for complex and high-concentration organic ammonia nitrogen wastewater

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Embodiment 1

[0062] GY-4 type packing matrix, the preparation process is as follows:

[0063]1) Select the landfill that has been buried for 5 to 40 years, and after removing stones, broken glass, incompletely degraded rubber and plastic, wooden sticks, paper and other debris with particles larger than 10mm, the moisture content is 20 to 36%. mineralized waste; the abundances of Pseudomonas, Sphingomonas, Comamonadaceae and Hyphomicrobiaceae in the mineralized waste were as high as 12.73%, 12.29%, and 8.82% respectively. % and 6.40%.

[0064] 2) Choose an ellipsoid, with a particle size of 6-13mm and a bulk density of 0.9-1.5g / cm 3 , ceramsite with a porosity of 0.3-0.7;

[0065] 3) Mix the mineralized waste and ceramsite at a mass ratio of 1: (3~7), soak and stir in the nitrifying bacteria culture medium for 150 seconds, and mix well; every two days, replace with fresh nitrifying bacteria culture medium and mix well After culturing for 10 days, the primary packing matrix is ​​completed...

Embodiment 2

[0068] An enhanced treatment system for complex and high-concentration organic ammonia nitrogen wastewater, including water collection adjustment tank 1, grease trap 14, coagulation reaction tank 2, inclined tube sedimentation tank 3, Fenton reaction tank 4, air flotation device 5, biochemical adjustment tank 6 , A / O biochemical pool 7, MBR membrane pool 8, ultrafiltration system 9, co-position nitrification and denitrification filter bed 10, reverse osmosis system 11 and discharge pool 12 are connected in sequence, and the treatment system also includes: power supply device 23; microcomputer control System 22, the first end of the microcomputer control system 22 is electrically connected to the power supply device 23; the fan water pump frequency conversion control system 15, the first end of the fan water pump frequency conversion control system 15 is connected to the first end of the microcomputer control system 22 The two ends are electrically connected; the aeration fan 16...

Embodiment 3

[0076] The water quality of the leachate produced by a garbage dump in Wannian County, Jiangxi Province is shown in Table 1, and the scale of sewage treatment is 150m 3 / d. The garbage leachate produced in the garbage landfill area flows into the water collection adjustment tank through the special collection pipe through the mechanical grid, and then is processed by the process of the present invention. Compared with the traditional process, the treatment effect of the present invention is shown in Table 2. The main water quality indicators have all reached the limit values ​​specified in GB16889-2008 "Standards for Pollution Control of Domestic Garbage Landfill Sites". Processing costs.

[0077] Table 1: Wannian landfill leachate water quality unit: mg / L (except pH)

[0078] project parameters Influent concentration value Water standard COD ≧10000 60 Ammonia nitrogen ≧2000 8 SS ≧800 30 total nitrogen ≧2000 30 pH 6-9 6-9 ...

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Abstract

The invention provides an enhanced treatment method and system for complex and high-concentration organic ammonia-nitrogen wastewater. The system includes a water collection adjustment tank, a grease trap, a coagulation reaction tank, an inclined tube sedimentation tank, a Fenton reaction tank, an air flotation device, The biochemical adjustment pool, the A / O biochemical pool, the MBR membrane pool, the ultrafiltration system, the same-position nitrification and denitrification filter bed, the reverse osmosis system, and the discharge pool are connected in sequence; the method includes the following steps: passing the complex and high-concentration organic ammonia nitrogen wastewater through the pre- After treatment, the pH is adjusted to acidity, and after flocculation, Fenton oxidation, biochemical adjustment, A / O process, membrane treatment, filter bed treatment, reverse osmosis treatment, the discharge reaches the standard. The method and system of the present invention greatly shorten the residence time of complex and high-concentration organic ammonia-nitrogen wastewater in the biochemical treatment process, solve the problem of difficult wastewater treatment, have low maintenance and operation costs in the later stage, and occupy a small area. The load of bed treatment and membrane treatment can prolong the service life of filter bed and membrane and reduce the cost.

Description

technical field [0001] The invention relates to the technical field of environmental engineering, in particular to an enhanced treatment method and system for complex and high-concentration organic ammonia-nitrogen wastewater. Background technique [0002] At present, the process of livestock and poultry breeding, chemical industry and domestic waste landfill produces a large amount of high-concentration organic ammonia-nitrogen wastewater. The discharge volume is large, the composition is complex, the pollutant organic matter and ammonia nitrogen are high, and the salinity is high. Due to relatively poor biodegradability and unbalanced carbon-nitrogen ratio, it is difficult to discharge main water quality indicators such as ammonia nitrogen and organic matter in the effluent, seriously endangering the environment and ecological security. [0003] For this kind of high-concentration organic ammonia-nitrogen wastewater, a combination of physical-chemical and biological proces...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F103/06
Inventor 柴喜林唐崇俭龙先辉刘治功刘鹏
Owner JIANGXI GAIA ENVIRONMENTAL SCI & TECH CO LTD
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