作者：Ziqiang; AO; Guiqun; PENG; Cheng; JIAN...energyplantsrecyclingwastewatertreatmentnitrogenandphosphorusremoval
摘要：Large-scale pig-raising can discharge a great deal of wastewater,which contains high content of organic matter,ammonia nitrogen and suspended solids.The improper treatment of the piggery wastewater can lead to serious environmental problems.As a liquid fertilizer,piggery wastewater is relatively low in fertilizer efficiency and high in transportation cost,so it is very necessary to treat it in situ.Energy plants have the advantages of rapid growth,large biomass,strong tillering ability and developed root system.Therefore,energy plants can be used to absorb and transform the pollutants(like nitrogen and phosphorus)in piggery wastewater into the components of plants,as well as form the rhizosphere environment which is conducive to microbial growth,so as to enhance the effects of nitrogen and phosphorus removal.The obtained energy plants can be recycled as the raw materials for biogas to increase the production of biogas,which brings economic benefits while solving the environmental problems caused by piggery wastewater.
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