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规模养猪废水排放量大,含高有机物、高氨氮、高悬浮物等,处理不当易导致严重的环境问题。养猪废水作为液态肥,其肥效相对较低,运输成本高,原位就地处理显得非常必要。利用能源植物生长迅速、生物量大、分蘖能力强、根系发达等优势将养猪废水中的氮、磷等污染物吸收转化为植物的组成部分及构成利于微生物生长的根际环境增加脱氮除磷的效果,获得的能源植物用作沼气的原料进行循环利用,增加沼气的产量,解决养猪废水导致环境问题的同时带来经济效益。
Large-scale pig waste emissions, containing high organic matter, high ammonia, suspended solids, improper handling can easily lead to serious environmental problems. Pig wastewater as liquid fertilizer, its relatively low fertilizer efficiency, high transportation costs, in-situ treatment is very necessary. Utilizing the advantages of rapid growth of energy plants, large biomass, strong tillering ability and developed roots, the nitrogen and phosphorus pollutants in swine wastewater are absorbed into the plant components and form the rhizosphere environment conducive to the growth of microorganisms to increase nitrogen removal Phosphorus effect, the obtained energy plants are used as raw materials for biogas for recycling, increase the output of biogas, and solve the environmental problems caused by the pig waste water while bringing economic benefits.