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High-concentration bioconcentration reactor and method for treating handmade rice wine wastewater

A wastewater treatment and bio-enrichment technology, which is applied in biological water/sewage treatment, food industry wastewater treatment, sustainable biological treatment, etc., can solve problems such as difficult to achieve coordinated pollutant standards, and reduce engineering investment and operating costs. The effect of improving utilization and avoiding competitive consumption

Active Publication Date: 2022-08-09
HAIYUAN ENVIRONMENTAL SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a bioconcentration reactor capable of increasing the number and activity of microbial strains, so as to solve the problem that it is difficult for handmade rice wine wastewater to achieve synergistic compliance of various pollutants with common biochemical methods and membrane treatment methods and devices. question

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  • High-concentration bioconcentration reactor and method for treating handmade rice wine wastewater
  • High-concentration bioconcentration reactor and method for treating handmade rice wine wastewater
  • High-concentration bioconcentration reactor and method for treating handmade rice wine wastewater

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Embodiment 1

[0038] refer to figure 1 As shown, this embodiment provides a high-concentration bio-concentration reactor for the treatment of handmade rice wine wastewater. The main body of the bio-concentration reactor is a box body, and the box body includes a pre-aeration zone 1, a first-level hypoxia Zone 2, primary aerobic zone 3, secondary anoxic zone 4, secondary aerobic zone 5, enrichment and concentration zone 6, each zone is separated by a separator 7, and the flow of treated wastewater is realized through the water hole, The top of the box is covered with a grid cover 8 made of glass fiber reinforced plastic.

[0039] Wherein, the first-level anoxic zone, the first-level aerobic zone, the second-level anoxic zone, and the second-level aerobic zone are filled with microbial carrier fillers 22 in the middle of the height of the box. A submersible mixer 11 is installed at the bottom of the front deoxygenation zone, the primary hypoxia zone and the secondary hypoxia zone. An aerati...

Embodiment 2

[0052] refer to figure 2 As shown, the second embodiment provides a method for the treatment of handmade rice wine wastewater, using the high-concentration biological enrichment reactor provided in the first embodiment, and the method includes the following steps:

[0053] Step 1: After the handmade rice wine wastewater is pretreated, it enters the mixing tank for water quality mixing. The pretreatment measures are mainly coarse grilles and screens, etc., mainly to intercept impurities and reduce the treatment load of subsequent facilities. The effluent quality of this step is controlled as follows: COD is 4000-5000mg / L, ammonia nitrogen is 120-160mg / L, and total nitrogen is 150-200mg / L. The effluent enters the bioconcentration reactor with a B / C ratio greater than 0.4.

[0054] Step 2: The effluent from step 1 enters the high-concentration biological enrichment reactor for activated sludge and biofilm treatment, wherein the primary aerobic zone 3 and secondary aerobic zone ...

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Abstract

The invention discloses a high-concentration biological enrichment reactor and a treatment method for handmade rice wine waste water. The mixture of rice wine lees and municipal sludge is used as a compound strain, and the microbial strains in the rice wine lees and municipal sludge can be used. The microbial species in the sludge form a good symbiotic relationship and form a suitable domestication environment, which is conducive to the rapid domestication of specific bacteria suitable for handmade rice wine wastewater in the later stage. The specific bacteria domesticated in the environment and weakly acidic environment have higher activity and more stable tolerance, which is more conducive to the cultivation of specific bacteria suitable for handmade rice wine. At the same time, starch, acetic acid, alcohols, sugars and other nutrients in rice wine lees are used to provide nutrients required for the domestication process, which greatly shortens the domestication process and the start-up time of the reactor.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and specifically relates to the technical field of biochemical treatment of wastewater in the brewing industry. Background technique [0002] Yellow wine is one of the world's three major fermented ancient wines. According to the "Guidelines for the Development of China's Wine Industry during the 13th Five-Year Plan" issued by the China Alcoholic Drinks Association, the planned output of the rice wine industry is 2.4 million kiloliters by 2020. According to the investigation of the Yellow Rice Wine Industry Association, the amount of wastewater produced per ton of rice wine wastewater is relatively large, and about 15-20 tons of comprehensive wastewater is produced per ton of wine. [0003] The production process of rice wine goes through the processes of soaking rice, dipping rice, steaming rice, pre-fermentation, post-fermentation, post-pressing, decoction, and filling. Wastewater from...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/30C02F103/32
CPCC02F3/302C02F3/30C02F3/301C02F3/34C12N1/36C02F2001/007C02F2103/325C02F2305/06Y02W10/10
Inventor 梁兴飞高丹丹赵欢陆和炜刘露冯力佟成博潘克散
Owner HAIYUAN ENVIRONMENTAL SCI & TECH
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