Application of Gonostegia hirta for purifying biogas slurry of livestock and poultry farming

Abstract

The invention discloses an application of Gonostegia hirta for purifying biogas slurry of livestock and poultry farming, and belongs to the field of waste water treatment. Gonostegia hirta plants are planted in an area polluted by the biogas slurry of livestock and poultry farming. Gonostegia hirta can absorb NH4+-N, TN, TP, CODcr and other pollutants in the biogas slurry of livestock and poultry farming, has strong vitality, can be directly planted, does not need special management and is perennial, so that the pollution caused by the biogas slurry of livestock and poultry farming can be eliminated permanently. The method has the advantages of low investment, low running cost and good effect, is simple and feasible to operate, and ensures the purifying effect of artificial wetland systems in winter. The Gonostegia hirta plants are harvested for medical use and have the effects of invigorating the spleen and promoting digestion, removing heat and dampness, eliminating toxic substances and relieving swelling, etc. The application of Gonostegia hirta for waste water treatment achieves integration of environmental protection and medicinal plant cultivation, conforms to the sustainable development principle based on overall consideration of sewage treatment, ecological restoration and economic construction, and is characterized by combination of theoretical research and practical application.

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...

AI Technical Summary

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

Images