Application of Chinese crinums to purification of livestock and poultry breeding biogas liquid

Abstract

The invention discloses application of Chinese crinums to purification of livestock and poultry breeding biogas liquid, belonging to the field of wastewater treatment. The problem of pollution caused by the livestock and poultry breeding biogas liquid is permanently solved by planting the Chinese crinums in environments which are polluted by the livestock and poultry breeding biogas liquid, and by fully utilizing the characteristics that the Chinese crinums have an absorbing effect to pollutants such as NH4<+>-N, TN, TP and CODcr (Chemical Oxygen Demand cr) in the livestock and poultry breeding biogas liquid, have strong vitality, can be directly planted, are not needed to be specially managed and are perennial. The investment is small, the operating cost is low, the effect is good, the operation is simple and feasible, and the purification effect of an artificial wetland system in winter can be guaranteed. The harvested Chinese crinums can be used for clearing away heat and toxic materials, removing stasis, relieving pains and treating heat sores, lymphnoditis, sphagitis, bone fracture, venomous snake bites and the like. By using the Chinese crinums to treat wastewater and by combining environmental protection with landscape construction and economic construction, the characteristic of combining theoretical researches with practical application is achieved.

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 poultry and livestock breeding industry has become more and more serious. It has an impact on the safety of drinking water, irrigation water, soil, agricultural products and air quality in rural areas. The human settlement environment poses a great threat. Anaerobic digestion technology has been widely used in the bio-energy development and pollution treatment of livestock and poultry breeding wastewater, which can effectively inhibit the primary pollution of livestock and poultry breeding wastewater; however, the biogas slurry from many large-scale farms is direc...

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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

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