Waste water purifying agent, and its preparing method and use

A purifying agent and wastewater technology, which is applied in chemical instruments and methods, water/sewage treatment, adsorbed water/sewage treatment, etc. It can improve the ability of removing oil pollution and various harmful impurities, improve the separation rate of free water, and improve the lipophilicity.

Active Publication Date: 2005-05-04
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The purifying agent has a partial coagulation function, and mainly removes harmful substances in water by adsorption. However, the actual use effect shows that the modified bentonite in it only has a relatively reliable purification efficiency for single-pollution or low-pollution wastewater. When the pollution components of the water body are slightly complicated, this substance will be powerless. For example, when there is LAS (anionic surfactant) in the water body,

Method used

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  • Waste water purifying agent, and its preparing method and use
  • Waste water purifying agent, and its preparing method and use
  • Waste water purifying agent, and its preparing method and use

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0057] Example 1

[0058] Cationized Attapulgite A1 Preparation:

[0059]a. Sodium treatment: pulverize the attapulgite into 150 meshes to be fine, and mix it with a sodium chloride (NaCl) solution with a concentration of 150g / l. The weight ratio of NaCl to attapulgite is preferably 3:1. After fully stirring for 8h, solid-liquid separation is carried out, and the precipitate is washed, dried at 110°C, and crushed through a 200-mesh sieve.

[0060] b. Electrical modification treatment: the sodium-treated attapulgite and aluminum chloride (AlCl3) solution with a concentration of 0.5 mol / l are thoroughly mixed. The weight ratio of AlCl3 to attapulgite is preferably 1:1. After fully stirring for 24h, solid-liquid separation is carried out, and the precipitate is washed, dried at 110°C, and crushed through a 200-mesh sieve.

[0061] c. Pore-forming treatment: The paper scraps that have passed through a 60-mesh sieve are mixed with polyvinyl alcohol in a weight ratio of 2:1 as a porogen...

Example Embodiment

[0063] Example 2

[0064] Preparation of activated alumina B1:

[0065] a. Wash and dry glass and ceramics separately.

[0066] b. Crush the above glass and ceramics through a 200 mesh sieve.

[0067] c. Mix the ceramic powder and glass powder in a ratio of 3:1 to obtain the activated alumina B2 .

Example Embodiment

[0068] Example 3

[0069] Activated silicate B2 Preparation:

[0070] a. Take commercially available water glass (Na 2 SiO 3 Or K 2 SiO 3 ), which is Na 2 O·nSiO 2 Or K 2 O·nSiO 2 , Where n is greater than or equal to 3. Press Al +3 : SiO 2 The water glass and the aluminum hydroxide solution are thoroughly mixed uniformly at a molar ratio of 1:1.

[0071] b. Add 15% sulfuric acid dropwise to the above mixture to adjust the pH to 3.6, and continue to stir for 8 hours. Then solid-liquid separation is performed. 15% sulfuric acid was used as the acid.

[0072] c. Dry the solid phase obtained in step b at 300°C for 2 hours, then cool and pulverize to obtain the activated silicate B2 .

[0073] 2. Wastewater purification agent preparation and water treatment experiment

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Abstract

The invention relates to a kind of wastewater depurator and its manufacturing method and application, which involves in sewage disposal environment. The wastewater depurator contains blend concave-convex stick soil, inorganic filling containing silicon dioxide, acidifying high-chemical valence metal salt and so on. After acidifying to PH 1-3, high-chemical valence metal salt solution evenly mixes with other components and dries, then it can be acquired. The wastewater depurator can make condensation and absorption function in a whole, and can make treating effictiveness basically not influenced by factors such as water-body condition, pollution extent, wastewater category and so on. And also it has stable treating effictiveness, wide scope of application, especially adapts to preliminary purifying treatment for industrial wastewater with bad pollution. The manufacturing method and the industrial art for water treatment are simple so that it is easy for operation, and in a result, it has wider extending application prospect.

Description

technical field [0001] The present invention relates to a kind of water treatment agent, more specifically, relates to a kind of waste water purification agent containing clay mineral, its preparation method and the application of waste water treatment. Background technique [0002] In the modern water treatment process, coagulation-flocculation treatment technology is still the technical solution with the highest utilization rate and better treatment effect. The core of the process is to make various fine impurities or toxic dissolved substances in the sewage It precipitates in the form of adsorption and aggregation, so it is easy to separate it from the water body by solid-liquid separation or filtration technology to achieve water purification. Under normal circumstances, the efficiency of this scheme is relatively high, but if it encounters sewage with complex pollution components and relatively large pollution load, the implementation of this process will encounter man...

Claims

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Application Information

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IPC IPC(8): C02F1/00C02F1/28C02F1/52
Inventor 蔡利山王文立刘四海宋明全赵素丽
Owner CHINA PETROLEUM & CHEM CORP
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