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Acclimation method for processing molasses alcohol wastewater sludge

A technology for molasses alcohol wastewater and sludge, applied in chemical instruments and methods, natural water treatment, anaerobic digestion treatment, etc., to achieve stable system operation, solve seasonal stagnation, and improve removal rate

Inactive Publication Date: 2019-04-12
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For the problems existing in single anaerobic fermentation molasses alcohol wastewater, the object of the invention is to provide a kind of domestication method for processing molasses alcohol wastewater sludge

Method used

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  • Acclimation method for processing molasses alcohol wastewater sludge
  • Acclimation method for processing molasses alcohol wastewater sludge
  • Acclimation method for processing molasses alcohol wastewater sludge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Step 1. Use self-made fermentation bottle combined with AMPTS-II automatic methane potential system for anaerobic fermentation.

[0025] Step 2. According to the ratio of COD of molasses alcohol wastewater to COD of cassava starch solution of 1:1.1, configure the water inlet, so that the total COD is 7.0g COD / L.

[0026] Measure 100mL of activated sludge, put it into a fermentation bottle, add the mixed wastewater composed of the molasses alcohol wastewater and tapioca starch solution to make the final volume of the reactor 400mL, and put it into a mechanical stirring system. Nitrogen was passed into each reaction flask to ensure an anaerobic environment, and the seal of the fermenter was checked at the same time.

[0027] Step 3. React continuously for three days and observe the gas production. If the gas production and gas production rate of several groups are basically the same, it indicates that the parallel state of the reaction system and the operation are in good...

Embodiment 2

[0030] Step 1. Use self-made fermentation bottle combined with AMPTS-II automatic methane potential system for anaerobic fermentation.

[0031] Step 2. According to the COD ratio of the molasses alcohol wastewater and the COD of the cassava starch solution is 1:1, the influent is configured so that the total COD is 7.5g COD / L.

[0032] Measure 150mL of activated sludge, put it into a fermentation bottle, add the mixed wastewater composed of the molasses alcohol wastewater and tapioca starch solution to make the final volume of the reactor 400mL, and put it into a mechanical stirring system. Nitrogen was passed into each reaction flask to ensure an anaerobic environment, and the seal of the fermenter was checked at the same time.

[0033] Step 3. React continuously for three days and observe the gas production. If the gas production and gas production rate of several groups are basically the same, it indicates that the parallel state of the reaction system and the operation are...

Embodiment 3

[0036] Step 1. Use self-made fermentation bottle combined with AMPTS-II automatic methane potential system for anaerobic fermentation.

[0037] Step 2. According to the ratio of COD of molasses alcohol wastewater to COD of cassava starch solution of 1:0.85, configure the water inlet so that the total COD is 8.0g COD / L.

[0038] Measure 170mL of activated sludge, put it into a fermentation bottle, add the mixed wastewater composed of the molasses alcohol wastewater and tapioca starch solution to make the final volume of the reactor 400mL, and put it into a mechanical stirring system. Nitrogen was passed into each reaction flask to ensure an anaerobic environment, and the seal of the fermenter was checked at the same time.

[0039] Step 3. React continuously for three days and observe the gas production. If the gas production and gas production rate of several groups are basically the same, it indicates that the parallel state of the reaction system and the operation are in good...

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Abstract

The invention relates to the technical fields of microorganism application and environmental protection, and particularly relates to an acclimation method for processing molasses alcohol wastewater sludge. The method comprises the step of anaerobic fermentation of activated sludge and mixed wastewater, wherein the mixed wastewater is composed of molasses alcohol wastewater and a tapioca starch solution, and the total COD of the mixed wastewater is 7.0-8.0 g COD / L. The method provided by the invention can reduce startup time of an anaerobic fermentation system, make the system run stably, and solve the phenomenon that a solution is easily acidified when anaerobic fermentation of a single substance is performed; and the method conforms to a production mode of various alcohol raw materials ina factory and solves the problem of seasonal stagnation.

Description

technical field [0001] The invention relates to the technical field of microbial application and environmental protection, in particular to a domestication method for treating molasses alcohol wastewater sludge. Background technique [0002] Molasses alcohol wastewater is a high-concentration organic wastewater produced when alcohol is produced from molasses. It has the characteristics of large output, high organic content, deep color, high acidity, and difficult degradation. Strong, the discharge time is relatively concentrated. If the molasses alcohol wastewater is directly discharged, it will cause eutrophication of the water body and acidification of the soil, which will seriously pollute the environment, threaten human health, and restrict production development. [0003] At present, the most economical and effective method for treating high-concentration organic wastewater is anaerobic biological treatment, which can not only purify wastewater, but also produce clean...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/28C02F103/32
CPCC02F3/28C02F2103/325C02F2305/06
Inventor 申佩弘辛苑武波蒋琼卢福芝蒋承建周权能
Owner GUANGXI UNIV
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