Novel technique for hyacinth resource utilization

Abstract

The invention discloses a novel technique for hyacinth resource utilization, which comprises the following steps: collected roots and stems of hyacinth are separated and respectively pulverized into thick slurry states; the thick slurries are respectively pressed and filtered to obtain stem filtration residue, root filtration residue and root-stem filtration liquid; the root-stem filtration liquid is treated by a constructed wetland system and discharged; anaerobic fermentation inoculum is added into the stem filtration residue to generate marsh gas through anaerobic fermentation, wherein the load of an anaerobic reactor TS is 2.0 to 6.0 percent; and the water ratio of the root filtration residue is adjusted to 55 to 77 percent with straws, the C/N is adjusted to 25 to 35 percent, and aerobic compost is carried out. Because the roots and the stems of hyacinth are respectively filtered after being separated, and the filtered roots and stems are respectively carried out resource utilization in the anaerobic fermentation mode and the aerobic compost mode, thereby the gas generation performance of hyacinth is improved, the amount of gas generation is increased by 45.99 percent, the treating capability of the anaerobic reactor is improved by times, high-quality compost products are obtained simultaneously, and the invention has good economic benefit and environmental benefit.

Description

technical field [0001] The invention belongs to the field of renewable energy development and utilization and environmental protection, and in particular relates to a method for improving the resource utilization rate of water hyacinth by using pressure filtration treatment. Background technique [0002] Water hyacinth (Eichhornia crassipes Solm.), scientific name Eichhornia crassipes Solm., belongs to the family Yujiuhuaceae, commonly known as bag lotus, water lotus, false narcissus, and is native to Brazil, Argentina, Peru and other countries. Water hyacinth likes high temperature and humidity, and its growth rate is amazing at 25-35°C. Usually, it can grow from 10 to 600,000 within 8 months. It is recognized as one of the fastest growing plants. In the 1930s, it was introduced into my country from South Asia as feed, and made great contributions to the development of my country's aquaculture industry. With the rapid development of my country's economy, mixed feed has gra...

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Problems solved by technology

[0004] The purpose of the present invention is to aim at the low anaerobic reactor treatment capacity, the low biotransformation rate of water hyacinth and the large workload of anaerobic digestion in the anaerobic fermentation of water hyacinth at present and other problems, provide a method that is not only simple in method, but also easy to operate, and improves the biotransformation rate of water hyacinth on the premise of ensuring that the treatment capacity of the anaerobic reactor is greatly improved

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