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Adsorbent for removing antibiotics from water body, and preparation method and application of adsorbent

A technology of antibiotics and adsorbents, applied in the field of adsorbents for the preparation and removal of antibiotics in water bodies, can solve the problems of poor removal of waste water, small treatment range, and low treatment degree, and achieve the expansion of treatment range and treatment capacity. Convenience and high adsorption efficiency

Inactive Publication Date: 2012-04-25
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the treatment method of organic wastewater is mainly biodegradation method, which makes the treatment of antibiotic wastewater need to be better studied and improved.
[0003] The patent No. 201010234165 discloses an adsorbent and a preparation method for removing soil mold odor from water bodies. The invention is easy to operate and can remove soil mold odor, but the disadvantage is that it is only limited to removing soil mold odor, and the treatment range is small. The degree is low, and it cannot have a good removal effect on industrial wastewater with high concentration and complex pollutant components.

Method used

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  • Adsorbent for removing antibiotics from water body, and preparation method and application of adsorbent
  • Adsorbent for removing antibiotics from water body, and preparation method and application of adsorbent
  • Adsorbent for removing antibiotics from water body, and preparation method and application of adsorbent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The bentonite ore is crushed and passed through a 200-mesh sieve; 5.6g of sodium chloride is added to the 70g bentonite that has been crushed and sieved, stirred for 2 hours and then dried to a constant weight; the dried bentonite is crushed and then passed through a 200-mesh sieve, and added 6.4g cetyltrimethylammonium bromide was stirred for 4 hours; 18g fly ash was added and stirring continued for 3 hours to obtain a mixture; the obtained mixture was filtered and washed to neutral (pH=6.5-7.5 ), dry to obtain a mixture to prepare an adsorbent; put the obtained adsorbent into a water containing four antibiotics of tetracycline, oxytetracycline, sulfadiazine and chloramphenicol at 10-20g / L, stir for 20-30min, and precipitate . Under these conditions, the adsorption efficiency of tetracycline with an initial concentration of 100 ppm is 94.5%, oxytetracycline is 92.1%, sulfadiazine is 94.0%, and chloramphenicol is 94.4%.

Embodiment 2

[0041] Crush the bentonite ore and pass it through a 200-mesh sieve; add 6g of sodium chloride to the 50g bentonite that has been crushed and sieved, stir for 2 hours and then dry to a constant weight; crush the dried bentonite through a 200-mesh sieve and add 6g Cetyltrimethylammonium bromide was stirred for 4 hours; 38g of fly ash was added, and stirring was continued for 3 hours to obtain a mixture; the obtained mixture was filtered and washed to neutrality (pH=6.5-7.5), After drying, the mixture is obtained, and the adsorbent is prepared; the adsorbent is poured into a water containing four antibiotics of tetracycline, oxytetracycline, sulfadiazine and chloramphenicol at 10-20g / L, and stirred for 20-30min to precipitate. Under these conditions, the adsorption efficiency of tetracycline with an initial concentration of 100 ppm is 97%, oxytetracycline is 98%, sulfadiazine is 93.2%, and chloramphenicol is 92.4%.

Embodiment 3

[0043] The bentonite ore is crushed and passed through a 200-mesh sieve; 3g of sodium chloride is added to the crushed and sieved 47g bentonite, stirred for 2 hours and then dried to a constant weight; the dried bentonite is crushed and then passed through a 200-mesh sieve, and 4g is added Cetyltrimethylammonium bromide was stirred for 4 hours; 46 g of fly ash was added, and stirring was continued for 3 hours to obtain a mixture; the obtained mixture was filtered and washed until neutral (pH=6.5-7.5), After drying, the mixture is obtained, and the adsorbent is prepared; the adsorbent is put into the water containing tetracycline, oxytetracycline, sulfadiazine, and chloramphenicol at 10-20g / L, and stirred for 20-30min to precipitate. Under this condition, the adsorption efficiency of tetracycline with an initial concentration of 100 ppm is 91.0%, oxytetracycline is 93.1%, sulfadiazine is 95.2%, and chloramphenicol is 89.7%.

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Abstract

The invention discloses an adsorbent for removing antibiotics from a water body. The adsorbent comprises components from readily available materials, is environment-friendly, clean and low in cost, treats waste by using waste, has a good and stable adsorption effect, can be recycled after being used and discarded, can adsorb various antibiotics in the water body subjected to antibiotic combined pollution simultaneously, can effectively reduce the peculiar smell and turbidity of the water body, and is suitable for treating antibiotic-containing water bodies such as livestock and poultry breeding wastewater, pharmaceutical wastewater and the like. The adsorbent for removing the antibiotics from the water body consists of the following raw materials in percentage by mass: 40 to 80 percent of bentonite, 1 to 10 percent of sodium chloride, 1 to 10 percent of hexadecyl trimethyl ammonium bromide and 12 to 58 percent of fly ash.

Description

Technical field [0001] The invention specifically relates to an adsorbent, a preparation method and application, and more specifically to an adsorbent for removing antibiotics in a water body, a preparation method and application, and belongs to environmental water pollution treatment technology. Background technique [0002] At present, the whole world is facing serious environmental problems. Even developed countries have various environmental pollution problems in various fields such as civil, industrial, commercial and military defense. Antibiotic wastewater is a relatively complex organic wastewater. In addition to the common characteristics of general organic wastewater, it also has biodegradability and biological toxicity. The main organic wastewater treatment methods are biodegradation methods, so that the treatment of antibiotic wastewater has been awaiting better research and improvement. With people's attention to environmental protection and environmental pollution p...

Claims

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Application Information

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IPC IPC(8): B01J20/12B01J20/30C02F1/28C02F1/58
Inventor 张宇峰夏阳骆永明刘希
Owner NANJING UNIV OF TECH
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