Study On The Treatment Of Swine Manure And Its Utilization

Intensive livestock and poultry industry, the development of large-scale environmental problems have been caused by concern about how to scientifically and rationally deal with the use of animal manure is the key to resolve this problem. In the handling of manure, the current extensive use of comparative static forced ventilation type composting system, however, composting in order to reduce energy consumption, improve the compost quality and more reasonable to control the composting process, the need for static control mandatory ventilation for further research. In addition, eco-farming culture is also conducive to the process of material recycling, energy conversion, and improves resource utilization, reduce waste, the generation of pollutants, protect and improve the ecological environment and promote sustainable development of aquaculture. Therefore, in this paper based on preliminary studies, in view of how to optimize static composting mandatory automatic ventilation system and the cultivation of pig and mushroom combination of nutrients - Eco-culture model of the feasibility study carried out the following:1 Ventilates the control system based on the temperature - oxygen content change good oxygen the design and the realizationStatic in the original automatic control system for forced ventilation, based on the ventilation pipe through the transformation and improvement of the ventilation strategy, good control of the fan ventilation to cool the reactor body and even oxygen, and optimize the entire composting environment, in which speed up the composting process.System control software design is based on the temperature - oxygen content changes in the parameters, using Microsoft Visual Basic 6.0 programming, the composting process to achieve automatic control of ventilation.Software with custom parameters, timing data, operating status shows that a total running time shows that the reactor body - in the - under the three temperatures showed that the oxygen content of stack body show features the work of a good interface.For improved control of the whole system to manure, rice husk and bran sawdust as raw materialls for composting system testing, the results compared with the original system: the high stability, simple operation, not only the body can show different periods of reactor temperature changes, moisture content can also display the changes and the advantages of oxygen, resulting in a whole heap composting process at different levels of body temperature, oxygen and moisture content changes in the ventilation line monitoring and automatic control, to ensure that composting the quality of the deal.2 Raises - the kind of union ecology cultivation circulation economic type establishmentIn the cultivation of Pleurotus eryngii to add different amounts of material in line with the (GB7959-87) standards of organic fertilizer for growing test. The results show that: with 20% organic fertilizer formula Pleurotus eryngii training compared with conventional formula-fat fast bacteria, mycelia growth, and fruiting body production and biological advantages of higher conversion rate is the use of the main raw material for the cultivation of Cotton SeedPleurotus eryngii Formulation of a good mushroom. Because of this, also proved that the animal husbandry industry and the mushroom cultivation industry combining the establishment of Yang - the feasibility of species ecological model.3 Ventilates the control system based on the temperature - oxygen content change good oxygen the design and the realizationJava on the bacteria, the main raw material for pig manure is static pile composting process Aerobic studied. The results showed that: the ratio of two different materials in the fermentation process reactor body, the temperature maintained at 55?over more than 7 d, the end of composting, the two reactor temperature back to room temperature is slightly higher than the level of moisture content are dropped to 15%, pH value of 7.5 about a loss of total nitrogen content were 23.04% and 33.47%.Of each parameter measured and found that slag and pig manure bacteria by adding rice husk and bran sawdust for about 25 d aerobic fermentation, you can access high-quality compost products. To deal with a loss of total nitrogen of total nitrogen than to deal with 2 losses, and that a suitable molar ratio of bacteria in the slag content of NH3 adsorption can play a good role.Pig manure and bacteria residue molar ratio of co-composting, the organic matter content should be controlled at 5.61%?4.68% between the total nitrogen content should be (?) 2.3%,moisture content should be controlled within 50?60%, which is help shorten the cycle of compost maturity.