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High-efficiency composite-enzyme treatment device and process for sewage

A sewage treatment device and composite enzyme technology, which is applied in biological water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problems of high pollution pressure of membrane modules and impurity, and achieve Slow down and control the generation of membrane fouling, the effect is better, and the effect of reducing the decrease of membrane flux

Inactive Publication Date: 2018-09-28
孙祥章 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the immobilized composite enzyme preparation used in this device is directly loaded on the porous carrier by physical adsorption, and its loading stability limits the reuse of the enzyme preparation. Moreover, due to the limitation of the substrate specificity of the enzyme, there are still A large number of impurities that cannot be catalytically degraded will still pose a high pollution pressure on the membrane module

Method used

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  • High-efficiency composite-enzyme treatment device and process for sewage

Examples

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Embodiment 1

[0026] The synthesis of embodiment 1 ionic liquid

[0027] The required ionic liquid of the present invention is N, N, N', N'-tetramethyl-N "-methyl-N"-butylguanidine tetrafluoroborate ionic liquid, and its synthetic method comprises the following steps:

[0028] (a) Dissolve 0.30mol of tetramethylurea in 60mL of toluene, and drop into freshly steamed 0.32mol of POCl under nitrogen protection and stirring 3 , after reacting at 60°C for 20 hours, at 3°C ​​with 170 mL CH 2 Cl 2 Dilute the reaction system, slowly add 1.27mol n-butylamine dropwise, heat up to 55°C and reflux for 30 hours, drop in 35% NaOH solution with a mass percentage of 35% in an ice bath to make the system neutral, and wash the reaction mixture with 170mL CH 2 Cl 2 Extraction, combined organic phase, with anhydrous Na 2 SO 4 After drying for 48 hours, filter, evaporate the solvent, and distill the residue under reduced pressure to obtain 0.17mol N,N,N',N'-tetramethyl-N"-butylguanidine (MBuTMG). FTIR (KBr)...

Embodiment 2

[0031] The preparation of embodiment 2 immobilized compound enzyme

[0032] The required immobilized complex enzyme of the present invention is synthesized according to the following method:

[0033] (1) Take hydrolase, lyase, oxidoreductase, laccase, esterase, peroxidase (both are liquid enzymes) with a mass ratio of 1:1:1:1:1:1 and mix them with the The ionic liquid solvent that example 1 makes is mixed, and it is the load liquid that the compound enzyme activity unit is 2000U / mL;

[0034] (2) Use a bulk density of 2.00-2.5g / cm 3 , specific surface area 100-700m 2 / m 3 , water absorption 5-45%, porosity 60-85%, compressive strength 8-20kg / cm 2 , Cordierite honeycomb ceramics with a temperature resistance above 100°C and a specific shape, use alkyl compounds as activators, soak the ceramics that have been cleaned with deionized water in 0.8-3wt% activator solution, activate 3- After 5 hours, after cleaning with deionized water, air-dry or suck dry naturally, then place t...

Embodiment 3

[0036] Embodiment 3 high-efficiency composite enzyme sewage treatment device

[0037] see figure 1As shown, the high-efficiency compound enzyme sewage treatment device of the present invention includes a reaction tank and a reuse pool 5 for degrading and filtering sewage, one side of the reaction tank is provided with a sewage inlet pipe 1, and the sewage passes through the sewage inlet pipe 1 enters the reaction pool for treatment, and the reaction pool is connected to the reused water pool 5 via a water pump 4 . In the reaction tank, along the flow direction of the sewage, it includes a composite enzyme degradation zone 2 and a membrane module separation zone in sequence, and an aeration tube 6 is arranged at the bottom of the reaction tank, and the aeration tube 6 is connected to a blower 7 connected, the compound enzyme degradation zone 2 is provided with an immobilized compound enzyme to catalyze the degradation of sewage organic matter, the immobilized compound enzyme i...

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Abstract

The invention belongs to the technical field of sewage treatment, and in particular relates to a high-efficiency composite-enzyme treatment device and process for sewage. According to the high-efficiency composite-enzyme treatment device for the sewage provided by the invention, a composite enzyme is utilized to degrade degradable substances such as organic substances in the sewage, a porous cordierite honeycomb ceramic is used as a carrier, an enzyme preparation is supported on the porous carrier by utilizing an impregnation supporting method for immobilization, in the whole supporting process, impregnation supporting is performed under the condition of a selected ionic liquid, the ionic liquid plays a role of a crosslinking agent in addition to be used as a solvent, so that the enzyme preparation can be more stably supported in pores of the porous carrier, the immobilization effect is more excellent, and the immobilized enzyme can be used for a plurality of times without reducing theefficiency.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a high-efficiency composite enzyme sewage treatment device and process. Background technique [0002] With the development of the economy and the increasingly serious situation of environmental protection, sewage treatment and utilization has become an eternal topic in the field of environmental protection, which has also promoted the vigorous development of sewage treatment technology. [0003] Membrane Bio-Reactor (MBR) is a new type of water treatment technology that combines a membrane separation unit with a biological treatment unit. It replaces the terminal secondary sedimentation tank of traditional biological treatment technology with membrane components. Maintain a high concentration of activated sludge, increase the organic load of biological treatment, thereby reducing the footprint of sewage treatment facilities, and reduce the amount of excess sl...

Claims

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Application Information

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IPC IPC(8): C02F3/34C02F9/14C12N11/14C02F101/30C02F103/28
CPCC02F1/44C02F3/342C02F2101/30C02F2103/28C02F2209/06C02F2209/08C02F2209/14C12N11/14
Inventor 孙祥章郑依瑞
Owner 孙祥章
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