Composite natural micro porous material sewage treating agent

A technology of sewage treatment agent and microporous material, which is applied in the direction of adsorption water/sewage treatment, neutralization water/sewage treatment, flocculation/sedimentation water/sewage treatment, etc. Pollution and other issues, to achieve the effect of low operating cost, excellent adsorption capacity, and good permeability

Inactive Publication Date: 2005-03-02
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the existing sewage treatment process, the operating cost of materials and processes is high, the same process is difficult to efficiently remove heavy metal ions, phenol, amine and other pollutants at the same time, and it is easy to cause secondary pollution. Natural microporous materials with different pore sizes and good adsorption properties are used as adsorbent carriers, and the microporous materials are modified to prepare sewage treatment agents suitable for various sewage water qualities. This sewage treatment agent can be suitable for existing sewage treatment processes , It can also be self-contained system for sewage treatment, and the self-contained system has better sewage treatment effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: Weigh 2400g of diatomite, 1120g of zeolite (type A), and 480g of bentonite, put them into a GRH-15 high-speed kneader, heat and stir for 10 minutes, and wait for the temperature of the material to rise to 95°C. Stirring was continued for 5 minutes. Weigh 6g and 4g of CTAB and TMAB respectively, pour them into a 200ml beaker, add 20ml of absolute ethanol, dissolve and stir evenly, add them to a GRH-15 high-speed kneader, heat for another 10 minutes, and take them out to obtain a compound modified natural One of the sewage treatment agents for microporous materials.

[0029] Adsorption treatment is carried out on sewage mainly containing phenol and amine, wherein the concentrations of phenol and amine are both 50mg / l, and the amount of sewage treatment agent is 0.8% of the weight of sewage. After stirring and dispersing the sewage treatment agent and sewage for 30 minutes, adjust the pH to 7-8 with sodium hydroxide during the period, settle and filter, and ...

Embodiment 2

[0030]Embodiment 2: Weigh 2000g of diatomite, 1400g of zeolite (type A), and 600g of bentonite, put them into a GRH-15 high-speed kneader, heat and stir for 10 minutes, and wait for the temperature of the material to rise to 95°C. Stirring was continued for 5 minutes. Weigh 6g and 4g of CTAB and TMAB respectively, pour them into a 200ml beaker, add 20ml of absolute ethanol, dissolve and stir evenly, add them to a GRH-15 high-speed kneader, heat for another 10 minutes, and take them out to obtain a compound modified natural Microporous material sewage treatment agent 2.

[0031] Adsorption treatment is carried out on sewage mainly containing phenol and amine, wherein the concentrations of phenol and amine are both 50mg / l, and the amount of sewage treatment agent is 0.8% of the weight of sewage. After stirring and dispersing the sewage treatment agent and sewage for 30 minutes, adjust the pH to 7-8 with sodium hydroxide during the period, settle and filter, and analyze the cont...

Embodiment 3

[0032] Embodiment 3: Weigh 2000g of diatomite, 1400g of zeolite (type A), and 600g of bentonite, put them into a GRH-15 high-speed kneader, heat and stir for 10 minutes, and wait until the temperature of the material rises to 95°C. Stirring was continued for 5 minutes. Weigh 40g of SDS and pour it into a 200ml beaker, add 80ml of absolute ethanol, dissolve and stir evenly, add it to the GRH-15 high-speed kneader, then weigh 160g PAC, add it to the GRH-15 high-speed kneader, and stir for 10 Minutes later, take it out to be the third compound modified natural microporous material sewage treatment agent.

[0033] Adsorption treatment is carried out on sewage mainly containing phenol and amine, wherein the concentrations of phenol and amine are both 50mg / l, and the amount of sewage treatment agent is 0.8% of the weight of sewage. After stirring and dispersing the sewage treatment agent and sewage for 30 minutes, adjust the pH to 7-8 with sodium hydroxide during the period, settle...

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Abstract

The composite natural microporous sewage treating agent is for treatment of sewage containing heavy metal ion, phenol, amine and other organic pollutant. The present invention features that the composite natural microporous sewage treating agent consists of diatomite of 0.1-10 micron granularity in 50-70 wt%, zeolite of 1-4 nm granularity in 20-40 wt%, and bentonite of 10-50 nm granularity in 0-15 wt%. The present invention selects cheap natural microporous material with excellent adsorbing performance and different pores as adsorbent carrier, and modifies the microporous material to prepare sewage treating agent suitable for various sewage quality. The present invention has excellent sewage treating effect.

Description

technical field [0001] The invention relates to a treatment agent for sewage containing heavy metal ions and organic pollutants such as phenol and amine. Background technique [0002] The discharge of industrial wastewater and urban domestic sewage has caused serious environmental pollution, and the treatment of sewage has become one of the most important issues in environmental protection. The existing sewage treatment technology mainly adopts biological method, chemical treatment method and physical treatment method. Among them, the physical and chemical methods of sewage treatment technology, although the investment is small, the land occupation is small, and the equipment is simple, but due to the addition of various flocculants, the concentrated liquid formed at the bottom of the water layer cannot be completely separated and taken away, forming a large amount of sludge, which is finally discharged still cause secondary pollution. In addition, the flocculant has only ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28C02F1/52C02F1/66
Inventor 杜玉成潘险峰张久兴刘燕琴
Owner BEIJING UNIV OF TECH
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