Application of ligularia sibirica in treating livestock and poultry breeding waste water

A technology for livestock and poultry breeding wastewater and water pipes, which is applied in the field of natural biodegradation of livestock and poultry breeding wastewater, can solve problems such as poor cold resistance, insufficient plant resources, secondary pollution of sewage water, etc., and achieve strong cold resistance and good decontamination effect , the effect of easy survival

CN101774698BInactive Publication Date: 2013-11-06SICHUAN AGRI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2013-11-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an application of ligularia sibirica in treating livestock and poultry breeding waste water, belonging to the field of waste water treatment. The adopted technical scheme is as follows: ligularia sibirica are planted in the environment polluted by livestock and poultry breeding waste water. In the invention, cold resistance property of ligularia sibirica and absorption removal property thereof to pollutants in waste water are fully utilized, ligularia sibirica are planted in the environment polluted by livestock and poultry breeding waste water to absorb and accumulate the pollutants in the waste water, thus ensuring water purifying effect, developing a new plant resource species for treatment on livestock and poultry breeding waste water pollution, bringing new progress and development space for further development on artificial wetland plants in treating livestock and poultry breeding waste water pollution, and having obvious advantages in running cost, operating maintenance, treatment effect, and accompanying extra economic values in landscape, medicament and other aspects in comparison with existing sewage-purifying plants.
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Description

technical field

[0001] The invention relates to the technical field of natural biodegradation of wastewater from livestock and poultry breeding, in particular to the application of artificial wetland plants in treating wastewater from livestock and poultry breeding. Background technique

[0002] The pollution of livestock and poultry breeding wastewater is long-term and irreversible. Its pollution is characterized by high suspended solids, high organic matter and high ammonia nitrogen, strong biodegradability and strong odor.

[0003] The livestock and poultry industry is an important part of my country's agriculture and rural economy, and it is also one of the main causes of non-point source pollution in my country's rural areas. The environmental pollution caused by the vigorous development of the livestock and poultry industry is becoming more and more serious, which not only affects economic development, but also Endangering ecological security has become a social issue o...

Examples

Embodiment 1

[0028] Under natural conditions, the collected Ligularia seedlings are directly transplanted into a rubber bucket with a height of 29cm, a bottom diameter of 26cm, and a height of 32cm. Water pipes are installed at the bottom, and from bottom to top there are gravel layers with a thickness of 5cm and a diameter of about 2-5cm. , 10cm thick coarse sand layer, 10cm thick (about 8kg) soil layer, tap water is stable for 15 days. After the plants are stabilized, the wastewater from livestock and poultry breeding is regularly irrigated, and water samples are collected and the water quality of the effluent is measured (the hydraulic retention time is set to 7 days). The amount of water in the pot test was determined by the estimation formula (1) recommended by Reed:

[0029] Q = F K - - - ( 1 )

[0030] In the formula: Q-design wastewater flo...