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Micro-electrolysis treatment process for furfural wastewater

A treatment process and micro-electrolysis technology, applied in water/sewage treatment, natural water treatment, biological water/sewage treatment, etc., can solve the problems of furfural wastewater not being effectively treated, water environment pollution, etc. Energy saving and stable effect

Pending Publication Date: 2018-04-06
云南今业生态建设集团有限公司
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Problems solved by technology

At present, the treatment methods of furfural wastewater mainly include physical and chemical methods and biochemical methods, but due to the constraints of treatment technology, furfural wastewater has not been effectively treated, causing serious pollution to the water environment.

Method used

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  • Micro-electrolysis treatment process for furfural wastewater

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Embodiment Construction

[0029] A furfural factory uses corncobs as raw materials and heats them at high temperature in the presence of a catalyst to hydrolyze polypentoses into pentoses and dehydrate the pentoses to furfural. The waste water in the production process mainly comes from tower bottom waste water, neutralization waste water, vacuum distillation waste water, brush tank and brush bucket waste water and other waste water, etc. The concentration of organic pollutants in the waste water is high, the acidity is strong, and the pH range is between 1.80-2.81 During the period, the average B / C value was 0.42.

[0030] like figure 1 A kind of furfural wastewater treatment process shown, carries out according to the following steps:

[0031] (1) Wastewater pretreatment

[0032] A. Regulating treatment: the production wastewater enters the regulating tank, stays for 10 hours, lowers the water temperature, and after the water quality is uniform, it is pumped to the micro-electrolysis tower;

[003...

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Abstract

The invention discloses a micro-electrolysis treatment process for furfural wastewater. The process mainly comprises three steps of wastewater pretreatment, biochemical treatment and sludge treatment,namely performing adjustment treatment on wastewater before UASB+AF (Upflow Anaerobic Sludge Blanket+Anaerobic Filter) anaerobic treatment and biological contact oxidation method treatment, homogenizing water quality, reducing the water temperature, improving decomposition of organic matters which are refractory in biochemical degradation according to micro-electrolysis principles so as to greatly improve biodegradability, and performing chemical coagulation procedures, thereby effectively reducing COD (Chemical Oxygen Demand) loads, increasing the pH value of wastewater and providing convenience conditions for later biochemical treatment. The treatment process disclosed by the invention has the advantages of being high in treatment efficiency and stable in effect.

Description

technical field [0001] The invention belongs to the field of wastewater treatment, and in particular relates to a micro-electrolysis treatment process for furfural wastewater. Background technique [0002] Furfural, also known as furan formaldehyde, is an organic chemical raw material and production raw material for traditional Chinese medicine. It is used in synthetic fibers, synthetic rubber, plastics, medicine, pesticides and dyes. Furfural is mainly made of plants rich in polypentoses. Under the condition of strong acid and high temperature and pressure, the polypentose is hydrolyzed to produce pentose, and then the pentose is dehydrated under the same condition, and furfural is obtained by refining. The furfural production industry is a heavily polluting industry. Furfural wastewater has (1) high temperature, the temperature of the wastewater reaches 97-99°C, (2) low pH value, the mass fraction of acetic acid in the wastewater is 1.0-2.5%, and the pH value of the wastew...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F101/30C02F103/36
CPCC02F9/00C02F2103/36C02F2101/30C02F2001/007C02F11/121C02F3/02C02F1/66C02F1/56C02F3/286C02F3/2846C02F3/2826C02F1/283C02F1/5236C02F1/46176
Inventor 邓辅商邓辅唐曾郴林
Owner 云南今业生态建设集团有限公司
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