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Application of papermaking sludge based biological carbon in removal of antibiotics or heavy metals and antibiotics from water body

A technology for papermaking sludge and antibiotics, which is applied in the fields of biomass treatment technology and water treatment, can solve problems that do not involve papermaking sludge biochar adsorption effect, do not mention the adsorption capacity of antibiotic pollutants, and do not involve applications. Application value, stable effect, and remarkable effect

Inactive Publication Date: 2018-02-13
SOUTH CHINA AGRI UNIV
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Problems solved by technology

However, this literature only involves the adsorption of a single pollutant Pb(II), and does not involve the adsorption effect of paper sludge biochar on the combined pollution of various heavy metals, and does not involve its application in organic pollution control
In the literature "Adsorption and immobilization of heavy metals / antibiotics in water and soil by biochar", biochar prepared from corn and wheat showed strong adsorption capacity for oxytetracycline and copper, but this literature only involved tetracycline antibiotics. Removal, did not mention the adsorption capacity of sulfonamides and macrolide antibiotic pollutants widely present in livestock and poultry sewage, and only studied Cu for heavy metals, and did not involve Cu / Zn / As compound pollution
In order to develop biochar with stronger adsorption capacity and wider application range, combined with the superiority of papermaking sludge as raw material carbon production in the first literature, papermaking sludge based biochar was prepared under high temperature (750°C) and oxygen-limited conditions. Biochar, and its application in the removal of heavy metal and antibiotic complex pollution, has not been reported

Method used

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  • Application of papermaking sludge based biological carbon in removal of antibiotics or heavy metals and antibiotics from water body
  • Application of papermaking sludge based biological carbon in removal of antibiotics or heavy metals and antibiotics from water body
  • Application of papermaking sludge based biological carbon in removal of antibiotics or heavy metals and antibiotics from water body

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Embodiment 1

[0036] This example provides a preparation method of papermaking sludge-based biochar, which is applied to the adsorption of Cu, Zn, As, SDM, TYL and ROX in water. The preparation process of paper-making sludge-based biochar is as follows: air-dried paper-making sludge over 60 mesh under natural conditions, and dried at 105°C for 8 hours. After drying, put it in a crucible soaked in 10% nitric acid for 12 hours, wrap two layers with tin foil paper, raise the temperature in a muffle furnace at a rate of 10 ℃ / min to 750 ℃ ​​under oxygen-limited conditions, and pyrolyze and carbonize for 2 hours. The papermaking sludge-based biochar was prepared and recorded as W-BC. The specific surface area, pore size and functional group type of W-BC were measured by pore size analyzer and Fourier transform infrared spectrometer respectively; then the isoelectric point pH of W-BC was measured PZC .

[0037] In order to investigate the adsorption effect of W-BC on Cu, Zn, As, SDM, TYL and ROX...

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Abstract

The invention discloses application of papermaking sludge based biological carbon in removal of antibiotics or heavy metals and the antibiotics from a water body and belongs to the technical field ofbiomass treatment and water treatment. The papermaking sludge based biological carbon has larger specific area and a larger pore size and can efficiently remove combined pollution of copper, zinc, arsenic, sulfadimidine, tylosin and roxithromycin. The biological carbon is simple in preparation technology, significant and stable in effect, environment-friendly and free from secondary pollution, andhas a wide application value in a heavy metal / antibiotic pollution repair aspect in the water body. Paper mill sludge difficult to treat is recycled; the environmental pollution problems of wastewater containing the heavy metals and the antibiotics are solved; and therefore, the application has important environmental and economic benefits. The biological carbon has a huge market and an application potential in waste recycling and sewage treatment.

Description

technical field [0001] The invention belongs to the fields of biomass treatment technology and water treatment technology, and in particular relates to the application of papermaking sludge-based biochar in removing antibiotics or heavy metals and antibiotics in water bodies. Background technique [0002] The intensification, scale and mechanization of the livestock and poultry breeding industry are accelerating, making the pollution of heavy metals / antibiotics in livestock manure and sewage produced by it become a major environmental problem that needs to be solved urgently. A large number of studies have proved that biochar, as a new type of environmental functional material containing highly phosphated and aromatized structures, has shown significant advantages in the removal of heavy metals / antibiotics in soil / sediment and aerobic wastewater environments . [0003] The literature "Preparation and Characterization of Activated Biochar from Papermaking Sludge" uses paperm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28C02F103/20C02F101/20C02F101/30C02F101/38
CPCC02F1/281C02F2101/20C02F2101/38C02F2101/40C02F2103/20
Inventor 林云琴蒋碧妮曾林涛伍裕斌罗毅丹孙瑞阳吴全连肖硕唐苑君
Owner SOUTH CHINA AGRI UNIV
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