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Device and method for combined treatment of soybean protein wastewater by anaerobic methanogenesis and anaerobic ammonia oxidation

A technology of soybean protein wastewater and anaerobic ammonium oxidation, which is applied in anaerobic digestion treatment, food industry wastewater treatment, waste fuel, etc., can solve the problems of high ammonia nitrogen content and ineffective denitrification, and achieve good results and growth Slow, cost-reducing effect

Active Publication Date: 2014-12-03
BEIJING TANSI ENVIRONMENTAL PROTECTION TECHCO
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  • Abstract
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  • Application Information

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Problems solved by technology

However, most of the existing methods are only aimed at the removal of COD. The simple anaerobic-aerobic process used in series cannot effectively remove nitrogen, and the removal water still contains high ammonia nitrogen and total nitrogen content.

Method used

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  • Device and method for combined treatment of soybean protein wastewater by anaerobic methanogenesis and anaerobic ammonia oxidation

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Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: as figure 1 As shown, the anaerobic methanogenic anammox joint treatment soybean protein wastewater device is provided with an inlet water tank 1, and the water inlet water tank 1 communicates with the anaerobic SBR reactor 3 through the first water inlet pump 2 and pipelines;

[0031] Anaerobic SBR reactor 3 is provided with reaction zone 5, top zone 6, and the bottom of reaction zone 5 is provided with the microporous aeration head 4 that is communicated with air compressor, and reaction zone 5 top is top zone 6; A first overflow weir 7 is arranged between the regions 6, and the outside of the first overflow weir 7 communicates with the water outlet pipeline 8; a gas outlet 9 and a gas return pipeline 10 are arranged at the top of the reaction zone 5;

[0032] The air compressor that is communicated with the microporous aeration head 4 is provided with two, and one of them is the air return compressor 11, and its air inlet passes through the gas return l...

Embodiment 2

[0037] Embodiment 2: as figure 1 As shown, the anaerobic methanogenesis anaerobic ammonia oxidation combined treatment soybean protein wastewater device is divided into two parts, both of which use filler sludge as the carrier. Among them, the anaerobic SBR reactor is enriched with methanogenic bacteria to effectively remove organic matter in water; the denitrification SBR reactor is enriched with ammonia oxidizing bacteria and anaerobic ammonia oxidizing bacteria at the same time, and the economical and efficient denitrification can be achieved through the synergy of the two bacteria . The process is suitable for the treatment of soybean protein production wastewater, and can effectively remove COD and ammonia nitrogen in wastewater; it also has a good treatment effect on other wastewater with high C / N ratio.

[0038] The device for combined treatment of soybean protein wastewater by anaerobic methanogenesis and anaerobic ammonium oxidation of the present invention consists ...

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Abstract

The invention relates to a device and a method for combined treatment of soybean protein wastewater by anaerobic methanogenesis and anaerobic ammonia oxidation and belongs to the technical field of sewage treatment. The device is provided with a water inlet tank, the water inlet tank is communicated with an anaerobic SBR reactor by virtue of a first water inlet pump and a pipeline, the anaerobic SBR reactor is provided with a reaction zone and a top zone, the bottom of the reaction zone is provided with a microporous aeration head communicated with an air compressor, the upper part of the reaction zone is the top zone, a first overflow weir is arranged between the reaction zone and the top zone, the outside of the first overflow weir is communicated with a water outlet pipe and a gas outlet and a gas backflow pipeline are formed in the top of the reaction zone. The method comprises the following steps of 1) inoculating sludge; 2) carrying out start-up phase; and 3) continuously operating. The device and method disclosed by the invention are suitable for treating high-COD and high-ammonia-nitrogen wastewater generated in the production process of soybean protein and are also applicable to the denitrification treatment of high-ammonia-nitrogen industrial wastewater. According to the device and method, process is perfect, operating cost is low, sewage treatment effect is good, and efficiency is high and control is flexible.

Description

technical field [0001] The invention relates to an anaerobic methanogenesis anaerobic ammonium oxidation combined treatment device and method for soybean protein wastewater, belonging to the technical field of sewage treatment. Background technique [0002] my country is a big producer of soybean protein, and a large amount of soybean protein wastewater is produced every year. Soybean protein wastewater is a typical wastewater with high COD and high ammonia nitrogen. However, the existing soybean protein wastewater treatment process only treats soybeans for COD, SS and other indicators. With the "Twelfth Five-Year" national economic and social development planning outline, the goal of reducing ammonia nitrogen emissions by 10% is proposed, and the existing soybean protein wastewater treatment process is difficult to meet the requirements of the new standard. [0003] (1) Water quality characteristics of soybean protein wastewater [0004] The production of soybean protein ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/28C02F103/32
CPCY02E50/30
Inventor 田盛
Owner BEIJING TANSI ENVIRONMENTAL PROTECTION TECHCO
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