处理养猪废水的人工湿地植物筛选综述

Review of Plants Selection for Artificial Wetlands Processing Piggery Wastewater

养猪废水含高有机质、高氨氮,处理难度大且排放达标困难,厌氧处理后用传统的好氧方法进行处理工程投资大、运行费用高、管理要求高,养殖企业较难接受。针对养猪废水的特点,巨菌草(Pennisetum sp.)+酸模(Rumex acetosa Linn)、杨树(Populus)+夹竹桃(Nerium oleander)等植物组合构建人工湿地处理养猪废水,可以提高人工湿地的处理效果,解决冬季废水处理难度大的问题,同时还能产生明显的经济效益。

Piggery wastewater has high concentrations of organic matter and ammonia-nitrogen which are difficult to treat, and its discharge is hard to meet the standard. Since the traditional aerobic treatment after anaerobic treatment requires large investment, high running expense and strict management, breed- ing enterprises could hardly accept the technique. Considering the characteristics of piggery wastewater, plant assemblages of Pennisetum sp. and Rumex acetosa Linn or Populus＋ Nerium oleander were used for the construction of artificial wetlands for piggery wastewater processing. The construction could enhance removal efficiency, guarantee hiemal piggery wastewater treatment and bring obvious economic benefit.