Method for treating cellulosic ethanol production wastewater
A technology for cellulosic ethanol and production wastewater, applied in the direction of biological water/sewage treatment, multi-stage water treatment, water/sewage treatment, etc., can solve the problems of poor treatment effect of production wastewater, achieve high-efficiency treatment, increase regulation ability, The effect of improving processing efficiency
Inactive Publication Date: 2018-12-14
FOSHAN CHANCHENG DISTRICT NUOGAO ENVIRONMENTAL PROTECTION TECH CO LTD
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- Claims
- Application Information
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Problems solved by technology
[0006] The technical problem to be solved by the present invention: Aiming at the problem of poor treatment effect of cellulosic ethanol production wastewater at present, the present invention provides a treatment method for cellulosic ethanol production wastewater
Method used
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Experimental program
Comparison scheme
Effect test
preparation example Construction
[0020] The preparation method of the retained material is to wash and dry the snail shells, remove the top of the snail shells, and fill the snail shells with modified soil to obtain the retained material; when the retained material is laid, the mouth of the snail shells faces upward.
[0021] The preparation method of the modified soil is to mix and ball-mill peat soil and humus soil according to the mass ratio of 3-6:2-5, and collect the ball-milled material. Put it into a carbonization furnace for pre-carbonization, pre-carbonize at 200°C for 2 hours, collect the pre-carbonized product, and obtain the modified soil.
[0022] The catalyst in step (2) is phosphotungstic acid, and the amount added is 4-7% of the mass of the filtrate.
[0023] In step (3), the composite activated sludge is prepared by mixing activated sludge, vermiculite and clay at a mass ratio of 7-9:3:2-5.
[0024] A treatment method for cellulosic ethanol production wastewater, the treatment method compris...
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Abstract
The invention relates to a method for treating cellulosic ethanol production wastewater and belongs to the technical field of wastewater treatment. The method comprises: adding triethyltetramine intocellulosic ethanol production wastewater so that the triethyltetramine and lignin undergo a Mannich reaction under the action of aldehyde substances in the wastewater as crosslinking agents to producea lignin amine compound for effectively flocculating and settling particles and metal ions in the wastewater so that wastewater is self-purified, filtering the wastewater through an adjustment filtermaterial divided into two layers, wherein the cobblestones in the upper layer can adjust activity of the water and the self-adjusting ability of the water is improved, and treating the water througha retention material using snail shells with special internal structures as carriers so that the wastewater can be effectively retained and well treated through a filler.
Description
technical field [0001] The invention relates to a treatment method for cellulose ethanol production wastewater, belonging to the technical field of wastewater treatment. Background technique [0002] Cellulosic ethanol is usually made of plant fibers such as corn stalks and sorghum stalks. High-purity ethanol is obtained through steam-explosion pretreatment, cellulase hydrolysis, glucoamylase fermentation, ethanol rectification and dehydration, and mixed with gasoline components. Production of fuel ethanol products as clean fuel for vehicles. In its production process, due to the fact that most of the hemicellulose (C5 sugar) and lignin in the raw materials cannot be utilized, and the accompanying by-products such as acetic acid, glycerin, lactic acid, and furfural in the process, the final ethanol distillation tower The mash discharged from the bottom contains extremely high concentrations of suspended solids and dissolved organic matter. At the same time, in order to imp...
Claims
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IPC IPC(8): C02F9/14C02F103/36
CPCC02F1/001C02F1/04C02F1/44C02F1/54C02F1/725C02F3/12C02F3/34C02F9/00C02F2103/36C02F2301/08
Inventor 胡次兵施衍
Owner FOSHAN CHANCHENG DISTRICT NUOGAO ENVIRONMENTAL PROTECTION TECH CO LTD