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Wastewater treatment device and wastewater treatment method in sugar refining industry

A technology of industrial wastewater and treatment methods, which is applied in the direction of food industry wastewater treatment, water/sewage treatment, chemical instruments and methods, etc. It can solve the problems of affecting the growth of activated sludge, difficult cultivation of granular sludge, and easy sludge bulking. , to extend the contact time, increase the speed and concentration, and achieve the effect of standard discharge

Active Publication Date: 2015-04-01
CHINA HAISUM ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The UASB process is widely used in the anaerobic treatment method, but there are deficiencies in this process: such as the difficulty in cultivating granular sludge, etc.
Among them, the activated sludge method used for the treatment of sugar wastewater mainly includes the oxidation ditch activated sludge method and the sequencing batch activated sludge (SBR) method, but these two processes still have disadvantages: the aeration rate is too high or too high. Low average will affect the growth of activated sludge, and the problem of sludge bulking is prone to occur; the latest technology for sugar wastewater treatment in biofilm method is to organically combine biological fluidized bed technology with membrane separation unit, which can make up for the actual Some defects in operation, but the processing cost is higher and the process is more complicated

Method used

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  • Wastewater treatment device and wastewater treatment method in sugar refining industry

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Effect test

Embodiment 1

[0022] Such as figure 1 As shown, it is a schematic structural diagram of a refinery sugar industry wastewater treatment device. The refinery sugar industry wastewater treatment device includes a coagulation sedimentation tank 1, the outlet of the coagulation sedimentation tank 1 is connected to the water inlet of the SBR reaction tank 2, and the SBR reaction tank The water outlet of 2 is connected to the water inlet of sand filter 3, and the water outlet of sand filter 3 is connected to the water inlet of ozone reaction tank 4, wherein, described SBR reaction tank 2 is connected with aeration equipment, and described aeration equipment is A high-speed foaming machine 5, the ozone reaction tank 4 is connected to an ozone reactor 6.

[0023] The specific steps for using the above-mentioned refining sugar industrial wastewater treatment device to treat the refining sugar industrial wastewater are:

[0024] The first step: COD: 1000mg / L, SS: 500mg / L refined sugar industrial wast...

Embodiment 2

[0028] Such as figure 1As shown, it is a schematic structural diagram of a refinery sugar industry wastewater treatment device. The refinery sugar industry wastewater treatment device includes a coagulation sedimentation tank 1, the outlet of the coagulation sedimentation tank 1 is connected to the water inlet of the SBR reaction tank 2, and the SBR reaction tank The water outlet of 2 is connected to the water inlet of sand filter 3, and the water outlet of sand filter 3 is connected to the water inlet of ozone reaction tank 4, wherein, described SBR reaction tank 2 is connected with aeration equipment, and described aeration equipment is A high-speed foaming machine 5, the ozone reaction tank 4 is connected to an ozone reactor 6.

[0029] The specific steps for using the above-mentioned refining sugar industrial wastewater treatment device to treat the refining sugar industrial wastewater are:

[0030] The first step: COD: 400mg / L, SS: 200mg / L refined sugar industrial wastew...

Embodiment 3

[0034] Such as figure 1 As shown, it is a schematic structural diagram of a refinery sugar industry wastewater treatment device. The refinery sugar industry wastewater treatment device includes a coagulation sedimentation tank 1, the outlet of the coagulation sedimentation tank 1 is connected to the water inlet of the SBR reaction tank 2, and the SBR reaction tank The water outlet of 2 is connected to the water inlet of sand filter 3, and the water outlet of sand filter 3 is connected to the water inlet of ozone reaction tank 4, wherein, described SBR reaction tank 2 is connected with aeration equipment, and described aeration equipment is A high-speed foaming machine 5, the ozone reaction tank 4 is connected to an ozone reactor 6.

[0035] The specific steps for using the above-mentioned refining sugar industrial wastewater treatment device to treat the refining sugar industrial wastewater are:

[0036] The first step: COD: 800mg / L, SS: 400mg / L refined sugar industrial waste...

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Abstract

The invention provides a wastewater treatment device and a wastewater treatment method in a sugar refining industry. The wastewater treatment device in the sugar refining industry is characterized by comprising a coagulative precipitation tank, wherein a water outlet of the coagulative precipitation tank is connected with a water inlet of an SBR reaction tank; a water outlet of the SBR reaction tank is connected with a water inlet of a sand filter; a water outlet of the sand filter is connected with a water inlet of an ozone reaction tank; the SBR reaction tank is connected with aeration equipment; the aeration equipment is a high-speed foaming machine; and the ozone reaction tank is connected with an ozone reactor. According to the wastewater treatment process in the sugar refining industry provided by the invention, the principles of energy conservation and emission reduction and circular economy are reflected, and up-to-standard release of the wastewater is realized under the conditions of safety and environment friendliness.

Description

technical field [0001] The invention relates to a treatment device and method for industrial waste water in refining sugar industry, belonging to the technical field of environmental protection. Background technique [0002] The main goal for the development of the sugar industry in my country's "Twelfth Five-Year Plan" is: the annual output of sugar is about 16 million tons; the annual production capacity of sugar reaches 18 million tons. The sugar industry is a water-intensive industry. It takes 10 tons of water to produce 1 ton of sugar and produces 0.2-21m 3 Wastewater (approximately 2.5m per ton of sugar beet wastewater 3 ). [0003] Refining sugar industrial wastewater is wastewater generated during the sugar refining process with raw sugar as raw material, mainly from distillation wastewater, cleaning wastewater, ground flushing water, circulating water drainage, and a small amount of domestic sewage in the sugar production process. Sugar wastewater contains a lot ...

Claims

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Application Information

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IPC IPC(8): C02F9/14
CPCC02F1/001C02F1/52C02F1/5236C02F1/56C02F1/78C02F3/1263C02F9/00C02F2103/32
Inventor 贺磊彭亢晋吴立群龚俊李彦成杨娇
Owner CHINA HAISUM ENG
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