Method for preparing activated carbon for industrial wastewater treatment by using one-step process

A technology for preparing activated carbon and industrial wastewater, applied in water/sewage treatment, adsorption water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of insufficient utilization of weak alkaline active agents, complex preparation process, and waste of resources To achieve the effect of eliminating soil pollution and water pollution, simple process and reducing waste

Inactive Publication Date: 2019-12-10
QINGDAO UNIV OF SCI & TECH
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  • Description
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  • Application Information

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Problems solved by technology

However, the efficiency and cost of wastewater treatment have always been the primary consideration of the factory
However, in the process of realizing the technical solution of the example, the applicant found that the above-mentioned technology has at least the following technical problems: insufficient utilization of weakly basic active agents leads to unavoidable waste of resources, and the preparation process is complex and cumbersome.

Method used

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  • Method for preparing activated carbon for industrial wastewater treatment by using one-step process
  • Method for preparing activated carbon for industrial wastewater treatment by using one-step process
  • Method for preparing activated carbon for industrial wastewater treatment by using one-step process

Examples

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Embodiment 1

[0032] A specific example of the present invention:

[0033] A KOH solution with a concentration of 6M / L was prepared for use. Collect waste cigarette butts, the diagram is attached figure 1 . Strip the filamentary filter element of the discarded cigarette butt, wash it several times to basically remove impurities, and then fully dry it for later use. The thermal weight loss curve of the test filter element under nitrogen atmosphere is attached image 3 , it is known that the temperature range of rapid carbonization of materials is in the range of 200-400 °C. The filter element is soaked in alkaline solution for 10 minutes, then placed in an oven at 80°C to fully dry, then moved into a tube furnace with a nitrogen atmosphere, and set the temperature to rise rapidly (10°C / min) in the range of 25-200°C and 400-800°C, and 200-200°C The temperature program is to slowly raise the temperature within 400°C (2°C / min), hold at 800°C for 120 minutes for activation, take it out after...

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Abstract

The invention discloses a method for preparing activated carbon for industrial wastewater treatment by using a one-step process. According to the technical scheme, a scheme for preparing a high-activity carbon material by using a one-step process is designed from the point of unique fiber bundle structures of raw materials, and the specific structural advantages of the raw materials are sufficiently utilized, so that the process is optimized. The raw materials can be converted into an efficiently adsorptive activated carbon material by mainly adopting the four simple processes: pretreatment after recovery of discarded cigarette ends, strong alkali impregnation, one-step carbonization and activation as well as alkaline removal by filtering and washing.

Description

【Technical field】 [0001] The invention relates to a method for preparing activated carbon for industrial waste water treatment in one step. It specifically relates to a method for preparing activated carbon by using a cigarette butt filter element in a one-step method, which fully utilizes the advantages of structural characteristics of raw materials to optimize the process. [0002] 【technical background】 [0003] The issue of industrial wastewater treatment has always been the focus of social attention. It has become a rigid requirement for environmental protection to treat industrial wastewater first and then discharge it. But wastewater treatment efficiency and cost issues have always been the plant's primary considerations. Cigarette butt filters are mainly made of acetate fibers and have a unique microfibril bundle-like structure. According to the survey by the American anti-smoking organization, cigarette butts form up to 765,000 tons of garbage every year, which is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/324C01B32/348C02F1/28C02F101/38
CPCC01B32/324C01B32/348C01P2006/12C02F1/281C02F1/283C02F2101/38
Inventor 杨吉颖胡振东吴韦菲王泉丰帆于瑶张白浪刘玉红陈玉伟段咏欣张建明
Owner QINGDAO UNIV OF SCI & TECH
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