共查询到19条相似文献,搜索用时 140 毫秒
1.
2.
3.
4.
以垃圾渗滤液中的重金属为研究对象,分析了A2/O工艺处理垃圾渗滤液过程中重金属(Pb、Ni、Cu、Zn、Cr)的变化以及去除情况。结果表明:A2/O工艺对渗滤液中的重金属去除率较高,但由于处理过程易受运行条件的影响,各重金属的去除率并不相同。由于渗滤液中重金属主要以溶解态形式存在,因此当渗滤液经过调节池的调节作用后,通过重力沉降或吸附沉降作用得到去除重金属含量较少。从生化处理结果来看,重金属经过生化处理后得到了很好的去除,去除率顺序基本与总去除率顺序保持一致。 相似文献
5.
6.
7.
8.
9.
从城市垃圾填埋场以及渗滤液的角度出发,探讨了城市垃圾填埋场渗滤液的处理技术,为维护城市的环保和谐作出一份贡献。 相似文献
10.
11.
12.
13.
Jill A. Zalesny Ronald S. Zalesny Jr. Adam H. Wiese Bart T. Sexton Richard B. Hall 《Journal of Sustainable Forestry》2013,32(3):303-327
ABSTRACT Information about macro- and micro-nutrient uptake and distribution into tissues of Populus irrigated with landfill leachate helps to maximize biomass production and understand impacts of leachate chemistry on tree health. We irrigated eight Populus clones (NC 13460, NCI4O18, NC14104, NC14106, DM115, DN5, NM2, NM6) with fertilized (N, P, K) well water(control) or municipal solid waste landfill leachate weekly during 2005 and 2006 in Rhinelander, Wisconsin, USA. During Aug. 2006, we tested for differences in total N, P, K, Ca, Mg, S, Zn, B, Mn, Fe, Cu, Al, and Pb concentration in preplanting and harvest soils; and in leaf, woody (stems?+?branches), and root tissue. Other than N, leachate did not increase the soil concentration of elements relative to preplanting levels. There was broad genotypic variation for tissue concentrations, with clone-specific uptake for most elements. Nitrogen, P, K, Ca, Mg, S, B, and Mn concentrations were greatest in leaves and least in woody tissue, while those of Fe, Cu, and Al were greatest in roots and least in leaves and woody tissue. Overall, successful uptake of nutrients without impacts to tree health validated the use of landfill leachate as an irrigation and fertilization source for Populus. 相似文献
14.
15.
采用微电解-Fenton氧化组合应用的方式预处理垃圾渗滤液,研究了其可行性及不同工艺条件对COD去除率的影响。结果表明:最佳微电解进水pH值控制在2.5,反应时间为40min,出水中H2O2的投加量为8mL/L,反应时间为60min,在此条件下,最高去除率可达到77.4%。 相似文献
16.
17.
18.