Beer wastewater treatment method

Abstract

The invention provides a beer wastewater treatment method. The beer wastewater treatment method comprises the following steps that 1, pretreatment is conducted, wherein screening is conducted by usinggrids; 2, sedimentation treatment is conducted, wherein after screening, a hectorite compound treatment agent with the mass being 0.05-0.1% of the mass of beer wastewater is added into the beer wastewater, and stirring is conducted; 3, according to the difference between an aerobic treatment way and an anaerobic treatment way, aerobic bacteria and anaerobic bacteria are added for treatment; 4, furfural is added, polyvinylpyrrolidone is added too, filtration is conducted to obtain filter residues and filter liquor, and the filter liquor is treated wastewater. The reasonable treatment method isadopted, the large-size organic matter, which is difficult to degrade, in the beer wastewater is effectively reduced, the organic matter is hydrolyzed into simple organic matter which is easy to degrade, the SS content in the wastewater is greatly reduced, the removal rate of BODs and CODs in the treated wastewater is high, and the treated wastewater reaches specified emission standards.

Description

technical field [0001] The invention belongs to the field of waste water treatment of food enterprises, and in particular relates to a treatment method of beer waste water. Background technique [0002] With the improvement of people's living standards, my country's beer industry has been greatly developed, and its output has increased year by year, which has also led to the discharge of a large amount of organic wastewater into the environment. According to statistics, 10-30 tons of fresh water is required for the production of 1 ton of beer. 10-25t wastewater. The wastewater from the beer industry has a high content of organic matter, including high concentrations of organic components such as protein, fat, fiber, carbohydrates, waste yeast, and hop residue. Promote the anaerobic decomposition of bottom sediment compounds, produce odor, deteriorate water quality, and pollute the environment. [0003] The traditional brewery wastewater treatment process is mainly based on th...

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Problems solved by technology

[0002] With the improvement of people's living standards, my country's beer industry has been greatly developed, and its output has increased year by year, which has also led to the discharge of a large amount of organic wastewater into the environment. According to statistics, 10-30 tons of fresh water is required for the production of 1 ton of beer. 10-25t wastewater. The wastewater from the beer industry has a high content of organic matter, including high concentrations of organic components such as protein, fat, fiber, carbohydrates, waste yeast, and hop residue. Promoting anaerobic decomposition of bottom sediment compounds, producing odor, deteriorating water quality and polluting the environment

[0003] The traditional brewery wastewater treatment process is mainly based on the activated sludge method, but the activated sludge method has the disadvantages of high energy consumption, poor impact load resistance, large land occupation, large infrastructure investment, large amount of residual sludge, and high operating costs.

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