Low-carbon ecological energy-regenerating greenhouse cultivating mode for soft-shelled turtles

Abstract

The invention discloses a low-carbon ecological energy-regenerating greenhouse cultivating mode for soft-shelled turtles, which is a circulating mode including biomass straw carbonization, greenhouse cultivation of soft-shelled turtles and cultivation wastewater treatment. Agricultural straw wastes are carbonized for producing charcoal in a biomass straw carbonization region, heat released in a charcoal producing process is provided to a greenhouse cultivating region of the soft-shelled turtles through a circulating water pipeline, the temperature of water in the greenhouse cultivating regionof the soft-shelled turtles is maintained to be 30+ / -1DEG C, CO2 generated in the charcoal producing process is used for being absorbed by photosynthesis of hydroponic vegetables, wastewater in a greenhouse cultivating pool of the soft-shelled turtles is used for removing nitrogen and phosphorus through a biomass carbon-base adsorbent bed and the hydroponic vegetables, a biomass carbon-base slow-release nitrogen and phosphorus fertilizer is applied to a farmland for growing crops, and the harvested agricultural straws are used for producing the charcoal. The low-carbon ecological energy-regenerating greenhouse cultivating mode has the advantages of simple operation and management, low carbon content, ecologization, energy regeneration and the like, and has good biomass carbon adsorptivity, high fertilizer efficiency of the biomass carbon slow release fertilizer, high economic value of the hydroponic vegetables, and remarkable environmental benefit, economic benefit and social benefit.

Description

technical field [0001] The invention relates to a soft-shelled turtle breeding mode in a low-carbon ecological energy-based greenhouse. Background technique [0002] my country is the country with the largest scale of soft-shelled turtle breeding in the world. Soft-shelled turtle is rich in nutrition, containing protein, fat, calcium, iron, animal glue, keratin and multivitamins. It is a rare tonic and a treasure of aquatic products. Along with the raising of our people's living standard, the domestic consumption of soft-shelled turtle is increasing day by day. Since the 1980s, my country has begun to raise industrialized high-density soft-shelled turtles. Because of its high benefits, fast growth of soft-shelled turtles, and easy control of breeding conditions, the scale of soft-shelled turtles has grown rapidly, with an average annual growth rate of 26%. . [0003] High-density soft-shelled turtle breeding mainly adopts fully enclosed steel frame concrete and plastic shed...

AI Technical Summary

Problems solved by technology

In this process, the heat energy utilization rate is low, the energy waste is serious, and a large amount of CO is emitted. 2

Greenhouse soft-shelled turtle breeding wastewater has high nitrogen and phosphorus content, TN 50-200mg / L, TP 5-50mg / L. At present, most farm wastewater is directly discharged without any treatment, which leads to eutrophication of surrounding water bodies and seriously affects the surrounding ecological environment and residents. physical and mental health

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