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System and method suitable for treating high concentration organic wastewater

A high-concentration technology for organic wastewater, applied in chemical instruments and methods, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of material and energy consumption, large pool capacity, etc., and achieve improved purification The effect of intensity

Inactive Publication Date: 2015-12-23
HANGZHOU DINGLONG ENVIRONMENTAL PROTECTION SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the existing methods for treating high-concentration organic wastewater also have the following disadvantages: biological denitrification needs to oxidize ammonia nitrogen and organic nitrogen into nitrate, and then remove it through the process of denitrification, which is suitable for low-concentration ammonia nitrogen and is suitable for treatment An economical process for low-concentration ammonia nitrogen, but when dealing with high-concentration ammonia nitrogen, the pool capacity will be very large, and it will cause a large consumption of materials and energy

Method used

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  • System and method suitable for treating high concentration organic wastewater
  • System and method suitable for treating high concentration organic wastewater

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Effect test

Embodiment 1

[0038] Systems suitable for treating high-concentration organic wastewater, such as Figure 1-2 As shown, it includes sequentially connected feed hopper 1, homogenization tank 2, biogas digester 3, upflow anaerobic sludge bed reactor 4, circulating activated sludge bioreactor 5, micro-electrolysis reactor 10, baffle Biological aerated filter 6 and ozone disinfection pond 7, the biogas digester is connected with a sludge thickening pond 8; the biogas digester 3 is also connected with a biogas net storage and gas supply system, which in turn includes a gas-water separator 91, a biogas The desulfurization device 92 , the first flame arrester 931 , the gas storage tank 94 , and the gas-water separator 91 are also connected to the biogas booster device 95 , the second flame arrester 932 and the waste heat recovery device 96 .

Embodiment 2

[0040] Systems suitable for treating high-concentration organic wastewater, such as Figure 1-2 As shown, it includes sequentially connected feed hopper 1, homogenization tank 2, biogas digester 3, upflow anaerobic sludge bed reactor 4, circulating activated sludge bioreactor 5, micro-electrolysis reactor 10, baffle The biological aerated filter 6 and the ozone disinfection pond 7 are connected to the biogas digester with a sludge thickening pond 8 , and a regulating pond 11 is provided between the biogas digester 3 and the upflow anaerobic sludge bed reactor 4 . The biogas digester 3 is also connected with a biogas net storage and gas supply system. The biogas net storage and gas supply system sequentially includes a gas-water separator 91, a biogas desulfurization device 92, a first flame arrester 931, and a gas storage cabinet 94. The gas-water separator 91 is also connected to A biogas booster device 95 , a second flame arrester 932 , and a waste heat recovery device 96 . ...

Embodiment 3

[0045] A method suitable for treating high-concentration organic wastewater, comprising the following steps:

[0046] A. Anaerobic digestion treatment:

[0047] The organic wastewater enters the homogenization tank 2 through the feed hopper 1, and after being evenly prepared under the stirring action of the stirring device of the homogenization tank 2, it is passed into the biogas tank 3;

[0048] The organic wastewater forms a mixed state under the action of the stirring device and the reflux spray system in the biogas digester 3, and the sediment produced in the anaerobic digestion process is discharged to the sludge concentration tank 8 through the sludge discharge port. The sludge pump is pumped away, and the remaining organic waste water is then passed into the upflow anaerobic sludge bed reactor 4;

[0049] The organic waste water decomposes the organic matter in the remaining organic waste water into methane and carbon dioxide under the joint action of anaerobic bacter...

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Abstract

The invention relates to the technical field of sewage treatment and discloses a system suitable for treating high concentration organic wastewater. The system comprises a feed hopper (1), a homogenizing tank (2), a biogas tank (3), an up-flow anaerobic sludge bed (4), a cyclic activated sludge bioreactor (5), a microelectrolysis reactor (10), a baffled biological aerated filter (BBAF) (6) and an ozone disinfection tank (7), which are connected in sequence, wherein the biogas tank is connected with a sludge thickening tank (8); a biogas purification and storage gas supply system comprises a gas-water separator (91), a biogas desulfurizer (92), a first flame arrester (931) and a gas storage tank (94) in sequence; and the gas-water separator (91) is also connected with a gas supercharging device (95), a second flame arrester (932) and a waste heat recovery device (96). The system and the method have the beneficial effects that the process is simple; the concentration gradient in the reaction process is large, so that sludge bulking is not easy to happen; the system has strong load impact resistance and good treatment effects; and the simultaneous denitrification and dephosphorization effects of the BBAF are obvious by adjusting the cycle of operation and controlling the working procedure time length.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, relates to a system suitable for treating high-concentration organic wastewater, and in particular to a method suitable for treating high-concentration organic wastewater. Background technique [0002] The treatment methods of high-concentration organic wastewater of different nature and sources are also different. Generally, it can be divided into three categories according to the nature and source of high-concentration organic wastewater: the first category is high-concentration organic wastewater that does not contain harmful substances and is easy to biodegrade, such as food industry wastewater; the second category is high-concentration organic wastewater that contains harmful substances and is easy to biodegrade. Degraded high-concentration organic wastewater, such as some chemical industry and pharmaceutical industry wastewater; the third category is high-concentration organic wast...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 詹参明徐雪祥陈锋段冬燕
Owner HANGZHOU DINGLONG ENVIRONMENTAL PROTECTION SCI & TECH
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