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Adsorption/flocculation/photocatalysis composite dye wastewater treatment agent and wastewater treatment method

A dye wastewater and treatment method technology, which is applied in special compound water treatment, water/sludge/sewage treatment, water/sewage treatment, etc., can solve the problem of low photocatalyst utilization ratio, achieve excellent treatment effect, effective adsorption, good degradation effect

Pending Publication Date: 2019-01-11
陆树旺
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This makes nano-TiO 2 Photocatalysts use a low proportion of solar energy

Method used

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  • Adsorption/flocculation/photocatalysis composite dye wastewater treatment agent and wastewater treatment method
  • Adsorption/flocculation/photocatalysis composite dye wastewater treatment agent and wastewater treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] An adsorption / flocculation / photocatalytic compound dye wastewater treatment agent is made of the following raw materials in parts by weight:

[0036] Co-doped nano-TiO with cerium and gadolinium 2 0.3 copies;

[0037] 72 parts of PDMDAAC modified diatomite;

[0038] 26 parts of polyaluminum chloride.

[0039]The preparation method of the dye wastewater treatment agent comprises the following steps: weighing each raw material according to the formula ratio and placing it in a stirring tank, stirring at 55° C. for 30 minutes, and the stirring speed is 800 r / min.

[0040] Co-doped nano-TiO with cerium and gadolinium 2 The preparation method comprises the following steps:

[0041] (1) Add a certain amount of ammonia and hydrochloric acid to the water to make a buffer solution with a pH value of 2; dissolve titanium tetrafluoride in the above buffer solution to make 0.05mol L -1 Titanium tetrafluoride solution, adjust the pH value of the solution to 2;

[0042] (2) Ad...

Embodiment 2

[0048] An adsorption / flocculation / photocatalytic compound dye wastewater treatment agent is made of the following raw materials in parts by weight:

[0049] Co-doped nano-TiO with cerium and gadolinium 2 0.5 copies;

[0050] 68 parts of PDMDAAC modified diatomite;

[0051] 35 parts of polyferric sulfate.

[0052] The preparation method of the dye wastewater treatment agent comprises the following steps: weighing each raw material according to the formula ratio and placing it in a stirring tank, stirring at 50° C. for 30 minutes, and the stirring speed is 600 r / min.

[0053] Co-doped nano-TiO with cerium and gadolinium 2 The preparation method comprises the following steps:

[0054] (1) Add a certain amount of ammonia and hydrochloric acid to the water to make a buffer solution with a pH value of 2.5; dissolve titanium tetrafluoride in the above buffer solution to make 0.05mol L -1 Titanium tetrafluoride solution, adjust the pH value of the solution to 2;

[0055] (2) Ad...

Embodiment 3

[0061] An adsorption / flocculation / photocatalytic compound dye wastewater treatment agent is made of the following raw materials in parts by weight:

[0062] Co-doped nano-TiO with cerium and gadolinium 2 0.4 copies;

[0063] 80 parts of PDMDAAC modified diatomite;

[0064] 22 parts of polyaluminum sulfate.

[0065] The preparation method of the dye wastewater treatment agent comprises the following steps: weighing each raw material according to the formula ratio and placing it in a stirring tank, stirring at 60° C. for 25 minutes, and the stirring speed is 800 r / min.

[0066] Co-doped nano-TiO with cerium and gadolinium 2 The preparation method comprises the following steps:

[0067] (1) Add a certain amount of ammonia and hydrochloric acid to the water to make a buffer solution with a pH value of 1.5; dissolve titanium tetrafluoride in the above buffer solution to make 0.05mol L -1 Titanium tetrafluoride solution, adjust the pH value of the solution to 2;

[0068] (2) ...

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Abstract

The invention provides an adsorption / flocculation / photocatalysis composite dye wastewater treatment agent and a wastewater treatment method, and relates to the technical field of wastewater treatment.The adsorption / flocculation / photocatalysis composite dye wastewater treatment agent is prepared from the following raw materials (by weight): 0.1-0.5 part f cerium and gadolinium codoped nano-TiO2, 60-80 parts of PDMDAAC modified diatomite and 20-35 parts of an inorganic polymer flocculant. By combining adsorption, flocculation and photocatalysis and selecting appropriate raw materials, the prepared wastewater treatment agent has excellent treatment effect on dye wastewater, and has high decolorization rate, high COD removal rate and good degradation effect.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to an adsorption / flocculation / photocatalytic composite dye wastewater treatment agent and a wastewater treatment method. Background technique [0002] Water is the source of life for humans, animals, and plants. Without water, humans will cease to exist, and creatures that need water on the earth will not survive. Due to a large amount of freshwater resources being polluted by the environment, global freshwater resources are decreasing year by year. The main sources of pollution are untreated or partially treated urban domestic sewage, toxic industrial wastewater, discharge of harmful chemical wastewater, and groundwater polluted by pesticides. Dyestuff is one of the important pollution sources in water pollution, which mainly comes from the wastewater discharge of textile, paper, plastic, food and cosmetics companies. The influx of dye wastewater into my country's wat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F101/38C02F103/30
CPCC02F1/281C02F1/30C02F1/5236C02F2101/308C02F2101/38C02F2103/30C02F2305/10
Inventor 陆树旺
Owner 陆树旺
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