A composite material for sewage treatment with high adsorption performance

A sewage treatment and composite material technology, applied in the direction of adsorption water/sewage treatment, water/sewage treatment, biological water/sewage treatment, etc., can solve the problems that cannot realize the removal of small molecule heavy metal ions and organic phosphorus, and achieve the improvement of hydrophilicity ability, increase the adsorption capacity, and improve the effect of adsorption performance

Active Publication Date: 2020-08-25
苏州清溪环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a composite material for sewage treatment with high adsorption performance, prepare filter membrane by composite textile of heavy metal adsorption fiber and organophosphorus adsorption fiber, and then install filter membrane and flat membrane in existing MBR module alternately On the MBR module, since the filter membrane can not only adsorb metal ions, but also adsorb organic phosphorus compounds, it can not only achieve filtration but also effectively adsorb heavy metal ions and organic phosphorus in sewage, solving the existing problem The problem that the MBR process cannot realize the removal of small molecule heavy metal ions and organic phosphorus

Method used

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  • A composite material for sewage treatment with high adsorption performance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The specific preparation process of heavy metal adsorption fiber is as follows:

[0020] Step 1: Add 24.9g of triallyl isocyanurate into 225mL of ethanol solution, stir well and adjust the pH of the solution to 1 with acetic acid, then add 29.14g of ethylenedithiol into the reaction vessel, and stir at room temperature React for 7-8h, then evaporate to remove the solvent and unreacted ethanedithiol therein to obtain thiotriallyl isocyanurate;

[0021] Step 2: Add 10g of thiotriallyl isocyanurate prepared in the first step into 250mL of ethanol and stir to dissolve, then add 8.6g of azobisisobutyronitrile to it, and then heat up to 90-95°C , then drop 6.6g of acrylic acid into the reaction vessel through the dropping funnel, control the dropping rate to 9-10mL / min, stir and react for 1-1.5h after the drop is complete, then raise the temperature to 120-125°C and stir for 5-6h, The obtained product solution is evaporated to remove the solvent therein to obtain a carboxyl ...

Embodiment 2

[0024] The specific preparation process of heavy metal adsorption fiber is as follows:

[0025] Step 1: Add 24.9g of triallyl isocyanurate into 225mL of ethanol solution, stir evenly, adjust the pH of the solution to 1 with acetic acid, then add 19.41g of ethanedithiol to the reaction vessel, and stir at room temperature React for 7-8h, then evaporate to remove the solvent and unreacted ethanedithiol therein to obtain thiotriallyl isocyanurate;

[0026]Step 2: Add 10g of thiotriallyl isocyanurate prepared in the first step into 250mL of ethanol and stir to dissolve, then add 8.6g of azobisisobutyronitrile to it, and then heat up to 90-95°C , then drop 6.6g of acrylic acid into the reaction vessel through the dropping funnel, control the dropping rate to 9-10mL / min, stir and react for 1-1.5h after the drop is complete, then raise the temperature to 120-125°C and stir for 5-6h, The obtained product solution is evaporated to remove the solvent therein to obtain a carboxyl nitrog...

Embodiment 3

[0029] The specific preparation process of heavy metal adsorption fiber is as follows:

[0030] Step 1: Add 10g of triallyl isocyanurate to 250mL of ethanol and stir to dissolve it, then add 8.6g of azobisisobutyronitrile to it, then raise the temperature to 90-95°C, and then add to the reaction through the dropping funnel Add 6.6g of acrylic acid dropwise to the container, control the dropping rate at 9-10mL / min, stir for 1-1.5h after the dropwise addition is complete, then raise the temperature to 120-125°C and stir for 5-6h, evaporate the obtained product solution to remove the The solvent, obtains carboxyl nitrogen polymer;

[0031] Step 2: Add 10g of carboxyl nitrogen polymer into 80g of water, stir and dissolve to obtain an adsorption solution, add polyamide fibers into the adsorption solution, heat up to 60-70°C for 2-3 hours, and then filter to obtain heavy metal adsorption fibers.

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Abstract

The invention discloses a sewage treatment composite material with high adsorption performance. Heavy metal adsorption fibers and organic phosphorus adsorption fibers are compounded and woven according to the mass ratio of 4:1 to form yarn for preparation, then the yarn is woven into filter gauze, and then the filter gauze is fixed on a fixing frame of an MBR assembly to prepare a flat plate filter membrane of the MBR assembly. The filter membrane is prepared by composite spinning of the heavy metal adsorption fibers and the organic phosphorus adsorption fibers; then the filter membrane and aflat membrane in the existing MBR assembly are alternately mounted on the MBR assembly; the filter membrane can adsorb metal ions and can adsorb organic phosphorus compounds, filtration can be achieved, heavy metal ions and organic phosphorus in sewage can be effectively adsorbed, and the problem that an existing MBR technology cannot remove micromolecular heavy metal ions and organic phosphorus is solved.

Description

technical field [0001] The invention belongs to the field of sewage treatment and relates to a composite material for sewage treatment with high adsorption performance. Background technique [0002] Sewage mostly contains factory wastewater and domestic sewage at the same time, and the content of ammonia nitrogen is high. It is usually treated by MBR process to reduce the content of ammonia nitrogen in sewage, but the adsorption performance is low for small molecule heavy metal ions and organic phosphorus compounds, while heavy metal Ions exist in the water body, and when they reach a certain concentration, they are harmful to the human body. At the same time, organophosphorus compounds are usually derived from the main components of pesticides, which are harmful to the human body in the water body. However, the existing MBR process cannot achieve organophosphorus Compound removal. Contents of the invention [0003] The purpose of the present invention is to provide a com...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/28C02F3/00D06M15/356D06M15/03D06M15/564D03D15/00D02G3/04C02F101/20C02F101/30D06M101/34D06M101/06
CPCC02F1/288C02F3/00C02F2101/20C02F2101/30C02F2203/006D02G3/04D06M15/03D06M15/3562D06M15/3566D06M15/564D06M2101/06D06M2101/34D10B2201/02D10B2331/02D03D15/47
Inventor 骆瑜
Owner 苏州清溪环保科技有限公司
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