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An Eco-Cycle Approach to Remediate Antibiotic Contamination in Soil

An ecological cycle and soil remediation technology, applied in the field of soil pollution bioremediation, can solve problems such as antibiotic soil pollution, and achieve the effects of reducing pollution, enhancing soil and water conservation, and improving soil properties and structure.

Active Publication Date: 2020-07-31
BIOLOGY INST OF HEBEI ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Still another object of the present invention is to provide an ecological cycle method for remediating antibiotic pollution in soil, which can not only solve the problem of antibiotic soil pollution, but also can utilize waste, produce clean energy, high-quality organic fertilizer, improve soil properties and structure, and promote Sustainable development and protection of the ecological environment are of great significance in today's society, with huge economic, social and ecological benefits and broad application prospects

Method used

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Embodiment 1

[0064] The present invention provides a kind of ecological cycle method for remediating antibiotic pollution in soil, comprising the following steps:

[0065] Step 1, in the spring of that year, sow herbaceous plant seeds I in the soil to be repaired (experimental field); herbaceous plant seeds I include a kind of forage grass seed that is sweet-scented clover, and a kind of lawn grass seed that is red clover; detect before sowing plant stems and leaves The initial total antibiotic content in the surface soil was 98mg / Kg, which provided a data basis for the subsequent calculation of antibiotic removal rates; among them, the types of antibiotics mainly included the following types: cephalosporins, penicillins, cephamycins, gentamicin, streptozolin Mycin, kanamycin, acetylspiramycin, josamycin, oxytetracycline, dimethylaminotetracycline, tetracycline chloramphenicol, sulfamethoxazole, sulfadiazine, norfloxacin, etc.

[0066] Step 2: After the herbaceous plant seeds I germinate a...

Embodiment 2

[0079] The types of antibiotics in the test field mainly include the following types: penicillins, cephamycins, monocyclic β-lactams, thiamycins, kanamycins, amikacins, tobramycins, aspergillus Neomycin, erythromycin, azithromycin, midecamycin, oxytetracycline, dimethylaminotetracycline, tetracycline, chloramphenicol, sulfamethoxazole, sulfadiazine, sulfisoxazole, sulfacetamide, Flufloxacin, ciprofloxacin, etc.

[0080] The present invention provides an ecological cycle method for remediating antibiotic pollution in soil. Others are the same as in Example 1, except that the herb plant seeds I in step 1 include a kind of forage grass seed that is ryegrass, and a kind of lawn grass seed that is tall fescue;

[0081] Wherein, detect and calculate the removal rate of antibiotics obtained after each harvest as shown in Table 3 below;

[0082] table 3:

[0083]

[0084] After repeating step 2-step 3 3 times, the total content of antibiotics in the surface soil is detected to be...

Embodiment 3

[0091] The types of antibiotics in the test field mainly include the following types: (1), thiamycins, streptomycin, kanamycin, amikacin, azithromycin, neomycin, josamycin, erythromycin Azithromycin, azithromycin, oxytetracycline, dimethylaminotetracycline, tetracycline chloramphenicol, thiamphenicol, sulfisoxazole, sulfathiazole, norfloxacin, ciprofloxacin, etc.

[0092] The present invention provides a kind of ecological cycle method of remediating antibiotic pollution in soil, other is the same as embodiment 1, difference comprises:

[0093] The herb plant seeds I in step 1 include a kind of forage grass seed which is yellow vetch and milk vetch, the seeds of yellow vetch and milk vetch are mixed according to the ratio of 1:1, and a kind of turfgrass seed is tall fescue and perennial green , the seeds of tall fescue and Sijiqing are mixed according to the ratio of quantity ratio 1:1;

[0094] Harvest once every 70-75 days according to the growth of herbaceous plants in ste...

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Abstract

The invention discloses an ecological cycle method for remedying antibiotic pollution in soil. The method comprises the following steps that: 1) in a current year, sowing first herbaceous plant seedsin soil to be remedied; 2) after the first herbaceous plant seeds sprout and grow, carrying out regular harvesting for multiple times; 3) carrying out anaerobic fermentation processing on plant stemsand leaves obtained by regular harvesting to obtain biogas residue and biogas slurry fertilizer, and applying the biogas residue and biogas slurry fertilizer to the soil to be remedied in S2; and S4:regularly detecting the total content of antibiotic in surface layer soil in the soil to be remedied, and repeating S1 to S3 for 1-2 years until the total content of the antibiotic in the surface layer soil is less than or equal to 1.0mg / kG. By use of the method, an antibiotic soil pollution problem can be solved, in addition, waste materials can be made good use, clean energy and organic fertilizer can be generated, the property and the structure of soil are improved, and the method has an important meaning for accelerating the sustainable development of the modern society and protecting theecological environment, has greater economic, social and ecological benefits and has a wide application prospect.

Description

technical field [0001] The invention relates to the technical field of soil pollution bioremediation, in particular to an ecological cycle method for remediating antibiotic pollution in soil. Background technique [0002] In recent years, antibiotic pollution in soil has received more and more attention and attention, and has become one of the international research hotspots. Antibiotics are one of the most used medicines in the world, and the use of antibiotics in my country is astonishing, accounting for about half of the world's consumption, of which 52% is used for animal husbandry and 48% for human use, and more than 50,000 tons of antibiotics are discharged into the water and soil environment every year middle. Most antibiotics cannot be completely absorbed by the body, and more than 85% of antibiotics are excreted into the environment by livestock and poultry excrement or patients, polluting soil and water through different channels. Soil is an important place where ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09C1/00
CPCB09C1/00B09C1/105B09C2101/00
Inventor 程辉彩张丽萍方楠何强吴健崔冠慧刘洪伟张飞燕王雅娜习彦花
Owner BIOLOGY INST OF HEBEI ACAD OF SCI
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