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

A technology for the enhanced treatment of ammonia nitrogen wastewater, which is applied in the field of environmental engineering and can solve problems such as difficult treatment, slow effect, and blockage

Active Publication Date: 2019-06-14
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

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

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Experimental program
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Effect test

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

[0079] Table 2 adopts the actual effect of a landfill leachate treatment project based on the present invention in Wannian

[0080] index

[0081] Explanation ...

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Abstract

The invention provides an intensive treatment method and system for complex high-concentration organic ammonia-nitrogen wastewater. The system includes a water collecting regulating tank, an oil separator, a coagulation reaction tank, a inclined tube sedimentation tank, a Fenton reaction tank, an air flotation device, a Biochemical regulation tank, an A/O biochemical pool, an MBR membrane tank, anultrafiltration system, a same-position nitrification denitrification filter bed, a reverse osmosis system and a discharge tank which are connected in sequence; the method comprises the following steps: pre-treating the complex high-concentration organic ammonia nitrogen wastewater, adjusting the pH to acidity, performing flocculation, Fenton oxidation, biochemical regulation, A/O process, membrane treatment, filter bed treatment, reverse osmosis treatment, and up-to standard discharge. The method and the system greatly shorten the residence time of the complex high-concentration organic ammonia nitrogen wastewater in the biochemical treatment process, solve the problem of difficult wastewater treatment, have low maintenance and operation cost, have small floor space, improve operation efficiency, reduce filtration bed treatment and membrane treatment load, and can prolong the service life of the 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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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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