Treatment method for improving photosynthetic biomass

A treatment method, photosynthetic biology technology, applied in biological water/sewage treatment, filtration treatment, chemical instruments and methods, etc., to achieve the effect of improving wastewater treatment efficiency and shortening hydraulic retention time

Inactive Publication Date: 2019-09-10
CHINA AGRI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Studies have shown that the medium prepared by magnetic treatment water can promote the growth of bacteria, and the magnetic field can improve the growth

Method used

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  • Treatment method for improving photosynthetic biomass
  • Treatment method for improving photosynthetic biomass
  • Treatment method for improving photosynthetic biomass

Examples

Experimental program
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Effect test

Embodiment 1

[0039] In this example, the treated soybean processing wastewater is yellow pulp water, in which the COD concentration is 12000 mg / L, the TN concentration is 1300 mg / L, and the TP concentration is 36.2 mg / L. The treatment methods to improve photosynthetic biomass and wastewater treatment effect adopt such as figure 1 The equipment comprises a magnetic field device 8 and a photosynthetic bacteria reactor 1, the wastewater outlet 2 and the wastewater return port 3 of the photosynthetic bacteria reactor 1 are connected with a wastewater pipeline to form a wastewater circulation loop, and a magnetic field device is arranged on the wastewater pipeline 8. Peristaltic pump 5. Pressure gauge 6. A water outlet valve 4 is arranged on the pipe section connected to the waste water outlet 2 . The photosynthetic bacteria membrane bioreactor is a bottle-shaped transparent glass container with a diameter of 15 cm. The diameter of the top return and outlet is 2cm.

[0040] see figure 2 an...

Embodiment 2

[0051] In this example, the COD concentration in the treated soybean processing wastewater is 13800mg / L. Carry out magnetic field treatment to improve photosynthetic biomass and wastewater treatment effect, such as figure 1 Equipment, including: photosynthetic bacteria reactor unit, high-intensity magnetic field unit.

[0052] Adopt the equipment identical with embodiment 1, comprehensive processing step:

[0053] 1. Test the COD concentration of soybean processing wastewater to be 13800mg / L, and adjust the pH to 6.9;

[0054] 2. Take 1.6L of adjusted soybean processing wastewater and add it to the photosynthetic bacteria reactor, and add 0.4L of the photosynthetic bacteria mixture that has reached the plateau stage. The final photosynthetic bacteria concentration is 1000mg / L dry weight, and the total liquid volume is the main body of the reactor two-thirds of volume;

[0055] 3. Select a high-intensity magnetic field device with a magnetic field strength of 0.8T, and conne...

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Abstract

The invention provides a treatment method for improving photosynthetic biomass, which comprises the following operations: 1) adding soybean processing wastewater into a photosynthetic bacteria reactorand inoculating photosynthetic bacteria in logarithmic growth phase; 2) driving the wastewater inoculated with the photosynthetic bacteria to circulate and flow, and returning to the photosynthetic bacteria reactor after passing through a magnetic field device to reach the growth plateau phase of the photosynthetic bacteria, and harvesting the photosynthetic bacteria for preparing high-value additives. The invention also provides equipment used by the processing method. According to the method provided by the invention, an external magnetic field is selected to circulate photosynthetic bacteria and wastewater in the reactor through the magnetic field, so that a better effect of treating wastewater than culturing photosynthetic bacteria with magnetically treated water is achieved.

Description

technical field [0001] The invention belongs to the field of wastewater treatment, and in particular relates to a wastewater treatment method using a magnetic field. Background technique [0002] Bean products are rich in protein and are one of the indispensable protein foods in people's lives. In recent years, my country's soybean product market has been continuously expanding, and the output of soybean products has grown rapidly, with an annual consumption of more than 3 million tons of soybeans. At the same time, the volume of soybean processing wastewater has gradually increased. Soybean processing wastewater mainly comes from the washing water, soybean soaking water and squeezed yellow slurry water generated in the soybean product processing process. The wastewater with higher concentration comes from soaked soybean water and yellow pulp water. Especially the yellow slurry water has a high content of organic pollutants, is easy to rot and deteriorate, and has a low p...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F103/32
CPCC02F1/001C02F1/48C02F1/66C02F3/34C02F9/00C02F2103/32
Inventor 卢海凤何仕超徐虹蒋伟忠李保明张源辉
Owner CHINA AGRI UNIV
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