马尾退运一批进口韩国废塑料

福州马尾海关日前查获来自韩国的10个集装箱共计92．64t废塑料垃圾，并在青洲码头退运出境。     

欧盟向垃圾宣战

最近几个月来，欧盟委员会负责环境事务的委员玛戈特·瓦尔斯特伦特别忙碌，这位女士曾在瑞典政府担任文化大臣和社会事务大臣，一向重视环境保护，对欧盟各国日益增多的垃圾深恶痛绝。在她的游说和推动下，欧盟15国的环境部长终于结束了漫长的讨论过程，就采取措施逐步减少垃圾数量，以及减轻垃圾对环境的污染等问题达成了共识。在布鲁塞尔欧盟总部，与处理垃圾有关的一系列法案有的已经公布，有的仍在制定。在这些法案中，以下几项特别引人注目： 关于垃圾焚烧场的法案。焚烧虽然是目前较为先进的垃圾处理办法，但焚烧过程中产生的有毒物…     

垃圾浸出液对填埋场周围水环境的研究

通过对广州两个生活垃圾卫生填埋场周围水环境长达５年的追踪监测，证明垃圾浸出液对地面水的污染主要是ＢＯＤ，ＣＯＤ、氮和磷，对地下水的污染主要来自难降解的有机污染物和微量重金属元素等。     

哈尔滨市生活垃圾处理产业化探讨

随着我国经济发展和人民生活水平的不断提高,城市垃圾产生量也不断增加,垃圾处理越来越受到人们的重视,垃圾处理产业也逐渐兴起.由于地区差异,工业发达程度和生活水平不同,不同的国家和地区有着不同的垃圾组成,相应的也采取不同的垃圾处理方法.哈尔滨市的生活垃圾处理现状具有一定的典型性,文章结合哈尔滨市实际情况,主要论述哈尔滨市生活垃圾的产量、特性及目前的处理状况,分析哈尔滨市生活垃圾问题的实质,对垃圾处理产业化存在的问题及其对策进行探讨,以期更好地促进生活垃圾处理步入产业化的发展轨道.     

农村遭遇面源污染危机

臭气肆虐,垃圾乱飞,已经成为部分农村的常见现象."城里人富了,产生的垃圾都运到了村子里,农村变得越来越脏".其实,这种观点只关注了一种污染现象.随着农村经济发展,更为严重的面源污染也在威胁农村,后者的破坏面可能更大.     

Removal of high concentrated ammonia nitrogen from landfill leachate by landfilled waste layer

The landfill of municipal solid waste(MSW) could be regarded as denitrification reactor and involved in ammonia nitrogen biological removal process. In this research, the process was applied to municipal solid waste collected in Shanghai, China, which was characterized by high food waste content. The NH4^ removal efficiency in the system of SBR nitrifying reactor followed by fresh and matured landfilled waste layer in series was studied. In the nitrifying reactor, above 90% of NH4^ in leachate was oxidized to NO2^- and NO3^- . Then high concentrated NO2^- and NO3^- were removed in the way of denitrification process in fresh landfilled waste layer. At the same time, degradation of fresh landfilled waste was accelerated. Up to the day 120, 136.5 gC/(kg dry waste) and 17.9 gN/(kg dry waste) were converted from waste layer. It accounted for 50.15 % and 86.89 % of the total carbon and nitrogen content of preliminary fresh waste, which was 4.42 times and 5.17 times higher than that of reference column respectively. After filtering through matured landfilled waste, BOD5 concentration in leachate dropped to below 100 mg/L, which would not affect following nitrification adversely. Because the matured landfilled waste acted as a well methanogenic reactor, 23% of carbon produced accumulatively from fresh landfilled waste degradation was converted into CH4.     

煤矿生产污水处理工艺设备的试验研究

本文针对煤矿生活污水的水质特性，提出了用活性污泥法和新型组合式一元化净水器相结合处理煤矿生活污水的新工艺。