摘要
针对高速公路服务区需水量多和生活污水氨氮浓度高的特点,研究采用聚铝与沸石床过滤的组合工艺来处理这类污水,以便中水回用。结果表明,污水中COD、SS等指标可通过聚合混凝处理得到有效去除,而水中的氨氮浓度可通过沸石床去除。经核算,该工艺每t水的回用处理成本约为1.33元,经济和环境效益十分显著。
Aiming at features of high demand for water and high density of ammonia and nitrogen in living sewage in expressway service area, this paper researches on adoption of combined technology of polyaluminium and zeolite filter bed to process such sewage so as to recycle reclaimed water. The results of research show that indices such as COD and SS, etc. in sewage can be effectively removed by polymeric and coagulated treatment, and the density of ammonia nitrogen in water can be removed by zeolite bed. By check computations, the cost of processing every ton of sewage for recycling by this technology is about RMB 1.33 yuan with remarkable economic and environmental benefits.
出处
《公路交通技术》
2010年第1期140-142,共3页
Technology of Highway and Transport
关键词
高速公路
服务区
聚铝
沸石床
氨氮
expressway
service zone
polyaluminium
zeolite bed
ammonia and nitrogen
