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Method for utilizing cellulose base integrated Fenton catalyst Fe<3+>C2O4/R to deeply treat printing and dyeing wastewater

A cellulose-based, printing and dyeing wastewater technology, applied in water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, water/sewage treatment, etc., can solve the problems of complex treatment procedures, secondary pollution, and high treatment costs , to achieve the effect of high efficiency and environmental protection, less sludge, and improved water quality

Inactive Publication Date: 2016-12-14
JIAXING SAIWEI ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the traditional printing and dyeing wastewater treatment process complex, high treatment cost, easy to produce secondary pollution and other problems, the present invention provides a high-value utilization of various vegetation resources to prepare environmentally friendly, efficient and simple cellulose-based integrated Fenton Catalyst Fe 3+ C 2 o 4 / R and apply it to the method of advanced treatment of printing and dyeing wastewater

Method used

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  • Method for utilizing cellulose base integrated Fenton catalyst Fe&lt;3+&gt;C2O4/R to deeply treat printing and dyeing wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 1) Filter the pulp cooking wastewater through a 60-mesh screen to obtain 1L of pretreated wastewater with a solid particle size less than or equal to 0.25mm;

[0021] 2) Add 3 mg of calcium chloride to the pretreated pulp cooking wastewater obtained in step 1), stir rapidly for 6 minutes, settle for 4 minutes after stirring evenly, take out the supernatant from solid-liquid separation, add 100 mg of cellulose-based flocculant and 15 mL of 2% active silica solution, stir rapidly at 310rpm for 4min, reduce the stirring speed to 80rpm, add 0.1mol / L dilute sulfuric acid solution to adjust the pH of the solution to 4, continue stirring at low speed for 6min, stop stirring and let stand for 30min, carry out solid-liquid separation and take the upper layer clear liquid to obtain flocculation, sedimentation, pulping and pulping wastewater treatment effluent;

[0022] 3) Polymerize reed cellulose with acrylamide and acrylic acid monomers to form a porous resin, and use the porou...

Embodiment 2

[0025] 1) Filter the printing wastewater through a 60-mesh screen to obtain 1L of pre-treated wastewater with a solid particle size less than or equal to 0.25mm;

[0026] 2) Add 4 mg of calcium chloride to the pretreated printing waste water obtained in step 1), stir rapidly for 6 minutes, settle for 3 minutes after stirring evenly, remove the supernatant from solid-liquid separation, add 250 mg of cellulose-based flocculant and 30 mL of 2 % active silica solution, stir rapidly at 310rpm for 3min, reduce the stirring speed to 80rpm, add 0.1mol / L dilute sulfuric acid solution to adjust the pH of the solution to 5, continue stirring at a low speed for 5min, stop stirring and let stand for 30min, carry out solid-liquid separation and get the supernatant liquid to obtain flocculation and sedimentation printing wastewater treatment effluent;

[0027] 3) Polymerize straw cellulose with acrylamide and acrylic acid monomers to form a porous resin, and use the porous resin as a carrier...

Embodiment 3

[0030] 1) Filter the color-fixing wastewater through a 60-mesh screen to obtain 1L of pre-treated wastewater with a solid particle size less than or equal to 0.25mm;

[0031] 2) Add 3 mg of calcium chloride to the pretreated color-fixing wastewater obtained in step 1), stir rapidly for 5 minutes, settle for 1 minute after stirring evenly, take out the supernatant from solid-liquid separation, add 150 mg of cellulose-based flocculant and 20 mL of 2% active silica solution, stir rapidly at 310rpm for 5min, reduce the stirring speed to 80rpm, add 0.1mol / L dilute sulfuric acid solution to adjust the pH of the solution to 6, continue stirring at low speed for 6min, stop stirring and let stand for 30min, carry out solid-liquid separation and take the upper layer clear liquid to obtain flocculation and sedimentation solidification wastewater treatment effluent;

[0032] 3) Polymerize sugarcane cellulose with acrylamide and acrylic acid monomers to form a porous resin, and use the por...

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Abstract

The invention discloses a method for utilizing cellulose base integrated Fenton catalyst Fe<3+>C2O4 / R to deeply treat printing and dyeing wastewater. The method comprises the following steps: filtering the printing and dyeing wastewater through a screen and then storing in a regulating reservoir; performing destabilizing pretreatment with calcium chloride and then adding few cellulose base flocculants for coagulating sedimentation; standing by and adding the settled supernate into cellulose base integrated Fenton catalyst Fe<3+>C2O4 / R for oxidative degradation; lastly, acquiring the treated water in high quality. According to the invention, the pre-filtered printing and dyeing wastewater is subjected to flocculent precipitate and oxidative degradation with cellulose base flocculants and cellulose base integrated Fenton catalyst Fe<3+>C2O4 / R, so that the dosage of the flocculants and the sludge output are reduced; the sludge is biodegradable; the quality of the draining water can be further increased through deep treatment; the production cost is lowered; the technical process is environment-friendly and high-efficient; the method has great social and social significance.

Description

technical field [0001] The invention belongs to the technical field of environmental engineering, in particular to the field of wastewater treatment, in particular to a cellulose-based integrated Fenton catalyst Fe 3+ C 2 o 4 / R The method of advanced treatment of printing and dyeing wastewater. Background technique [0002] The printing and dyeing industry is a large water consumer. The amount of wastewater discharged and the total amount of pollutants rank the second and fourth in the national industrial sector respectively. It is one of the key polluting industries in my country. It has become the focus and difficulty of wastewater treatment process research. At the same time, with the rapid development of my country's economy, the shortage of water resources has become a limiting factor restricting the further development of my country's printing and dyeing industry. In order to achieve the sustainable development of the printing and dyeing industry, the recycling of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F103/30
CPCC02F9/00C02F1/001C02F1/42C02F1/5263C02F1/54C02F1/66C02F1/722C02F1/725C02F2103/30C02F2305/026
Inventor 张勇杨梦梦施旭晓潘莲君林正钏
Owner JIAXING SAIWEI ENVIRONMENTAL PROTECTION TECH CO LTD
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