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Application of polygonum capitatum in purifying livestock breeding biogas slurry

A technology of livestock and poultry breeding and Polygonum cephalum, which is applied in the field of biogas slurry treatment of livestock and poultry breeding, can solve the problems of inability to guarantee the purification effect of low-temperature environment, insufficient plant species resources, and low economic value, so as to achieve rich technical plant banks and rich Nutritized water purification effect and low operating cost

Inactive Publication Date: 2014-04-16
CHONGQING UNIV OF ARTS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a solution for the above-mentioned existing artificial wetland technology that can be used to purify biogas slurry of livestock and poultry because of insufficient plant species resources, low economic value, poor cold resistance, easy to die in winter, and unable to guarantee the purification effect of low temperature environment. A new plant resource that can be used to purify biogas slurry from livestock and poultry breeding

Method used

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  • Application of polygonum capitatum in purifying livestock breeding biogas slurry
  • Application of polygonum capitatum in purifying livestock breeding biogas slurry
  • Application of polygonum capitatum in purifying livestock breeding biogas slurry

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Embodiment 1

[0024] This embodiment is the application of Polygonum cephalum to treat biogas slurry from livestock and poultry breeding, and the specific application method is as follows:

[0025] 1. Construction of Constructed Wetland System

[0026] The size of the wetland system is 100cm×45cm×75cm (L×W×H); it includes the water distribution pipes installed on the top of the wetland system, and the bottom of the wetland system is the water collection tank and water outlet. Lay gravel layer, slag layer and sand layer sequentially from the sump to the top. The constructed wetland bed is characterized in that: the inside of the wetland bed is composed of wetland filling matrix and shale hollow bricks, and there is a water collection tank at the bottom of the wetland system to collect waste water treated by the wetland system.

[0027] In order to enhance the oxygen supply capacity inside the wetland system, thereby improving the purification effect of organic matter in wastewater, shale ho...

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Abstract

The invention discloses application of polygonum capitatum in purifying livestock breeding biogas slurry, which belongs to the field of wastewater processing. The polygonum capitatum is planted in a livestock breeding biogas slurry pollution environment; and the function of the polygonum capitatum for absorbing pollution matters such as NH4+-N, TN, TP, CODcr in the livestock breeding biogas slurry, and the characteristics that the polygonum capitatum has tenacious vitality, can be planted directly, has no need to be managed specially, and is perennial are fully utilized, so that the problem of livestock breeding biogas slurry pollution is solved permanently. The investment is small, the operation cost is low, the effect is good, the operation is simple and easy to realize, and the purifying effect of an artificial wetland system in winter is ensured. The harvested polygonum capitatum can be used medicinally, and can be used for treating urinary tract infection, nephropyelitis and the like. The zephyranthes candida is utilized for processing wastewater, and the environment protection is combined with pharmaceutical plant cultivation, so that a sustainable development idea taking consideration of sewage processing, ecological restoration and economic construction is embodied, and the characteristic of combing theory research and practical application is realized.

Description

technical field [0001] The invention relates to the field of livestock and poultry breeding biogas slurry treatment, in particular to an application of artificial wetland plants to purify livestock and poultry breeding biogas slurry. Background technique [0002] In recent years, with the rapid development of the large-scale and intensive livestock and poultry breeding industry, the environmental pollution caused by the livestock breeding industry has become increasingly serious, and its impact on rural drinking water safety, irrigation water, soil, agricultural products and air quality and rural The living environment poses a great threat. Anaerobic digestion technology has been widely used in the bioenergy development and pollution control of livestock and poultry wastewater, which can effectively suppress the primary pollution of livestock and poultry wastewater; however, the biogas slurry of many large-scale farms is directly discharged, resulting in Serious secondary p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/32
CPCY02W10/10
Inventor 夏红霞朱启红
Owner CHONGQING UNIV OF ARTS & SCI
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