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Method for adsorbing copper ions in waste water by carbon particle prepared from cow dung

A technology of carbon particles and carbonized particles, which is applied in the direction of adsorption water/sewage treatment, metallurgical wastewater treatment, chemical instruments and methods, etc., and can solve problems such as poor adsorption effect

Inactive Publication Date: 2015-04-29
QINGDAO AGRI UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method overcomes the defects such as poor adsorption effect in the adsorption method and the defects in other methods, and provides an efficient and low-cost method for treating copper-containing wastewater

Method used

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  • Method for adsorbing copper ions in waste water by carbon particle prepared from cow dung
  • Method for adsorbing copper ions in waste water by carbon particle prepared from cow dung
  • Method for adsorbing copper ions in waste water by carbon particle prepared from cow dung

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Embodiment Construction

[0044] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0045] According to one aspect of the present invention, there is provided a method for preparing carbon particles from cow dung to adsorb copper ions in wastewater, which includes the following steps.

[0046] In the first step, the cow dung is sent to the paddle dryer to be dried into semi-dried cow dung with a moisture content of 40%-50%.

[0047] Preferably, the cow dung is sent to the separating screen to separate i...

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Abstract

The invention discloses a method for adsorbing copper ions in waste water by carbon particle prepared from cow dung. The method comprises the following steps: obtaining fourth carbonization particles from a first step to a fourth step; regulating acidity and alkalinity of copper-containing waste water to 8 in a fifth step, adding 50 g of poly-p-tert-butylphenol disulphide, ferrous sulfide and sodium hydrogen sulfate according to the mass rate of 1:2:4 into 1 litre of copper-containing waste water, stirring for one hour, regulating the acidity and alkalinity of the copper-containing waste water to 6.5, adding 50 g of a mixture of fatty alcohol-polyoxyethylene ether sodium sulfate and sodium hypochlorite according to the mass rate of 1:4 into 1 litre of copper-containing waste water, stirring for 2 hours and filtering, regulating the acidity and alkalinity of the copper-containing waste water to 4-6, and adding 25 g of the fourth carbonization particles into 1 litre of treated copper-containing waste water to stir for 8 hours at stirring speed of 120 turns / minute.

Description

technical field [0001] The invention belongs to the technical field of purification and treatment of copper-containing wastewater, and in particular relates to a method for absorbing copper ions in wastewater by preparing carbon particles through cow dung. Background technique [0002] With the development of the metallurgical industry and the electronic industry, a large amount of copper powder washing wastewater, electroplating wastewater and alkaline ammonia etching waste liquid in the production process of printed circuit boards have been produced. These copper-containing wastewater have high economic value, but are harmful to people and the environment. There is danger. Relevant studies have shown that, as a beneficial element necessary for life, copper itself is less toxic, but after the human body inhales excessive copper, it will stimulate the digestive system, cause abdominal pain and vomiting, and long-term excess can cause liver cirrhosis. Copper is also highly t...

Claims

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Application Information

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IPC IPC(8): C02F1/28C02F1/62B01J20/20B01J20/30C02F103/16
CPCB01J20/20C02F1/281C02F2101/20C02F2103/16
Inventor 张磊
Owner QINGDAO AGRI UNIV
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