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A kind of preparation method of composite modified mineralized garbage of water treatment material

A technology of mineralized garbage and compound modification, which is applied in chemical instruments and methods, adsorption water/sewage treatment, and other chemical processes, can solve problems such as complex water quality and difficult application requirements of water treatment agents, so as to promote adsorption and improve The effect of adsorption capacity

Active Publication Date: 2011-12-14
溧阳常大技术转移中心有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the water quality to be treated in our country is relatively complex, rich in organic matter and phosphate, a single water treatment agent is difficult to meet the current application requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The mineralized garbage that has been dried and crushed through a 100-mesh sieve is added to the cationic surfactant cetyltrimethylammonium bromide solution, the amount of the cationic surfactant is 0.3 mmol / g mineralized garbage, and then at 50 ℃ water bath for 1 hour to make a suspension; 0.2 mol / L FeCl 3 solution was added to the above suspension, FeCl 3 The dosage is to add 0.3 mmol FeCl per gram of mineralized waste 3 , after stirring for 5 minutes, a suspension was obtained; under the condition of stirring in a water bath at 50 °C, 0.3 mol / L Na 2 CO 3 solution to suspension until OH － / Fe 3+ =1.5, the product was aged at room temperature for more than 10 hours, then washed and filtered several times, dried at 60°C, ground, and passed through a 100-mesh sieve to obtain composite modified mineralized waste.

[0015] The prepared modified mineralized waste was used to treat wastewater containing both phosphate and phenol, and the removal rates of the two polluta...

Embodiment 2

[0017] Add the mineralized garbage that has been dried and crushed through a 100-mesh sieve into the cationic surfactant dodecyltrimethylammonium bromide solution, the amount of the cationic surfactant is 0.4 mmol / g mineralized garbage, and then at 70 ℃ water bath for 2 hours to make a suspension; 0.2 mol / L FeCl 3 solution was added to the above suspension, FeCl 3 The dosage is to add 2 mmol FeCl per gram of mineralized waste 3 , after stirring for 5 minutes, a suspension was obtained; then, under the condition of stirring in a water bath at 70°C, 0.3 mol / L NaOH solution was added dropwise to the suspension until the OH － / Fe 3+ = 2.5, the product is aged at room temperature for more than 10 hours; after repeated washing and filtration, it is dried at 90°C, ground, and passed through a 100-mesh sieve to obtain composite modified mineralized waste.

[0018] The prepared modified mineralized waste was used to treat wastewater containing both phosphate and 2-naphthol, and the ...

Embodiment 3

[0020] Add the mineralized garbage that has been dried and crushed through a 60-mesh sieve into the cationic surfactant octaalkyltrimethylammonium bromide solution, the amount of the cationic surfactant is 0.3 mmol / g mineralized garbage, and then put the mineralized garbage at 60°C Stir in a water bath for 1.5 hours to make a suspension; add 0.2 mol / L FeCl 3 Add the solution to the above suspension, and add 1 mmol of FeCl per gram of mineralized waste 3 , after stirring for 5 minutes, a suspension was obtained; under the condition of stirring in a water bath at 60°C, 0.3 mol / L Na 2 CO 3 solution to suspension until OH － / Fe 3+ =2, the product is aged at room temperature for more than 10 hours; after repeated washing and filtration, it is dried at 70°C, ground, and passed through a 100-mesh sieve to obtain composite modified mineralized waste.

[0021] The prepared modified mineralized waste was used to treat wastewater containing both phosphate and phenanthrene, and the re...

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PUM

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Abstract

The invention discloses a preparing method for compound modified and mineralized rubbish from water treatment materials. The method comprises the following steps: adding dry and smashed 40-100 mesh mineralized rubbish into a cation surface active agent solution, wherein 0.3-0.4mmol cation surface active agent is added in one gram of mineralized rubbish; stirring the mixture for 1-2 hours under the condition of 50-70 DEG C water bath, thereby preparing suspension liquid; adding a 0.2mol / L FeCl3 solution into the suspension liquid and then stirring for 5 minutes till acquiring the suspension liquid, wherein 0.3-2mmol FeCl3 is added in one gram of mineralized rubbish; dropwise adding a 0.3mol / L NaOH or Na2CO3 solution into the suspension liquid under the condition of 50-70 DEG C stirring water bath, till OH- / Fe3+ is equal to 1.5-2.5; ageing a product for more than 10 hours at room temperature; and lastly repeatedly cleaning and filtering, drying at 60-90 DEG C, grinding and filtering with a 100 mesh sieve, thereby acquiring the compound modified and mineralized rubbish. Organic (surface active agent) and inorganic (iron carbonyl) modified groups are formed on the surface of the compound modified and mineralized rubbish, thereby being capable of simultaneously absorbing and removing phosphate radicals and organic pollutants by the prepared compound modified and mineralized rubbish.

Description

technical field [0001] The invention relates to the fields of new materials for environmental pollution control and sewage treatment, in particular to a method for preparing water treatment materials from mineralized garbage. Background technique [0002] At present, my country's industrial and urban domestic wastewater is generally mixed and then concentrated, resulting in a large amount of organic pollutants, phosphate and various other pollutants in the sewage, and the sewage treatment process is complicated and inefficient. The conventional sewage treatment process generally uses a combination of biological and chemical methods to remove phosphorus, but the phosphorus removal effect is not good enough, and it is difficult to remove low-concentration phosphate radicals. Studies have shown that when the concentration of phosphate in the lake reaches 0.03 mg / L, it can cause eutrophication. The adsorption method is an effective method to remove low-concentration phosphate r...

Claims

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Application Information

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IPC IPC(8): B01J20/22C02F1/28
Inventor 马建锋李定龙崔冰莹
Owner 溧阳常大技术转移中心有限公司
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