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A technology for antibiotics and water removal, applied in the field of water treatment, can solve the problems of low removal rate and high cost, and achieve the effect of low raw material cost, fast speed and simple operation
Inactive Publication Date: 2014-04-23
SICHUAN ZHONGJIENUO ENVIRONMENTAL PROTECTION SCI & TECH CO LTD
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Abstract
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Problems solved by technology
[0004] The purpose of the present invention is to solve the problems of high cost and low removal rate in existing methods for removing antibiotics in water, and provide a method for removing antibiotics in water
Method used
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specific Embodiment approach 1
[0017] Specific implementation mode one: this implementation mode is a method for removing antibiotics in water, specifically completed according to the following steps:
[0018] 1. Mix sodium persulfate with pretreated water: Add sodium persulfate and pretreated water into the water tank, and stir for 20min to 45min at room temperature and at a stirring speed of 160r / min to 250r / min to obtain persulfate Sodium sulfate / pretreated water mixed solution;
[0019] The concentration of antibiotics in the pretreated water described in step 1 is 5mg / L~100mg / L;
[0020] The antibiotics in the pretreated water described in step one are penicillin, amoxicillin, ciprofloxacin, ofloxacin, roxithromycin, clarithromycin, amikacin, amphotericin, tetracycline One or more mixtures of chloramphenicol and chloramphenicol;
[0021] The mass ratio of the quality of sodium persulfate described in step 1 and the water of pretreatment is 1:(1000~10000);
[0022] 2. Adjust the pH value: use 0.1mol / ...
specific Embodiment approach 2
[0031] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is: in step 1, sodium persulfate and pretreated water are added to the water tank, under the conditions of normal temperature and stirring speed of 200r / min~250r / min Stir for 30min to 45min to obtain a sodium persulfate / pretreated water mixed solution. Other steps are the same as in the first embodiment.
specific Embodiment approach 3
[0032] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the concentration of antibiotics in the pretreated water described in step 1 is 5 mg / L-80 mg / L. Other steps are the same as those in Embodiment 1 or 2.
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Abstract
The invention discloses a method for removing antibiotics in water, and relates to a water treatment method. The invention aims to solve the problems of higher cost and low removing rate in the conventional methods for removing the antibiotics in the water. The method comprises the following steps: (1) sodium persulfate is mixed with pretreated water; (2) the pH value is regulated; (3) ultraviolet light is used for irradiating the water body; (4) sodium thiosulfate solution is added. The method for removing the antibiotics in the water has the following advantages: (1) the method is easy to operate; the cost of raw materials is low, and is reduced by 30-50%; (2) the volatility is lower; the chromaticity, the taste and the odor are not changed before and after the reaction, and are existed more stably under the normal temperature and normal pressure; (3) the speed is quick; by-products are non-hazardous; the concentration of the antibiotics in the water can be effectively controlled; (4) the removing rate reaches 85-90%. The method can remove the residual antibiotics in the water.
Description
technical field [0001] The invention relates to a water treatment method. Background technique [0002] Antibiotics in the water environment have attracted more and more attention. They mainly come from the incomplete treatment of medical wastewater and the discharge or release of residual antibiotics in biological sludge to surface water, thereby polluting environmental water bodies. In addition, manure runoff is also a source of water pollution. The main source of antibiotics in the environment. In recent years, residual antibiotics in the water environment have been detected in sewage and surface water in China, Europe and the United States. The concentration reaches nanograms per liter to micrograms per liter, and after enrichment in water The concentration will increase hundreds of times. Even at low concentrations, antibiotics in water will have an impact on the ecological environment and human health: on the one hand, it will promote the resistance of microorganisms ...
Claims
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Application Information
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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/08
Inventor 郭洪光高乃云杨一琼王群张静
Owner SICHUAN ZHONGJIENUO ENVIRONMENTAL PROTECTION SCI & TECH CO LTD
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