固体有害废物处理处置技术的选择

一、有害废物的特性定义及分类一般来说,有害废物系指具有各种毒性或具有易爆性、易燃性、腐蚀性、化学易反应性、传染性等有害特征的废物。废物管理不当对人类健康和环境造成即时的或潜在的危害,如排入江河湖海会严重恶化水质,同时可能发出恶臭和有毒气体。因此有害废物     

开发废玻璃丝综合利用的新途径

一、前言秦皇岛玻璃纤维总厂,是我国首批兴建的玻璃纤维大中型骨干企业之一。建厂时,由于环保问题尚未引起人们的重视,致使这个厂的主要工业固体废渣——废硬玻璃丝,在厂内堆积成两座近万吨的“长白山”,占地0.312万米~2,     

论HNS96与经修正的CLC69和FUND71的差异及关联

通过ＨＮＳ９６与经修正ＣＬＯ６９和ＦＵＮＤ７１的比较来阐述它们间的差异及关联，以增另以ＨＮＳ９６的研究，为相关单位和人员提供参考。     

德国的废弃物管理：封闭物质循环和绿点标志

德国是世界上在环境保护领域处于领先地位的国家之一，在经合组织（OECD）国家中，其环境水准也是名列榜首。德国在固体废弃物管理方面坚持预防为主、产品责任制和合作原则，着眼于避免不必要的废弃物的产生。在严格执法的基础上，鼓励来自工商企业界的自愿承诺，形成了一...     

被污染土壤中多氯联苯测定

多氯联苯(PCBs)系一组化学性质极其稳定的氯代芳烃类化合物.属于世界银行规定的"需要进行评价的有害物质"名单中的有毒物质,也是重要的内分泌干扰物.本文通过氢氧化钾、浓硫酸破坏样品中可能的干扰物,再将样品色谱峰形进行比较,确定多氯联苯的污染类型,然后采用特征识别色谱峰进行定量测定.本文测定了由国家环境保护总局标准样品研究所提供土壤样品.     

Effect of bio-surfactant on municipal solid waste composting process

Bio-surfactant is a new type of surfactant that is produced in microbial metabolism. Adding bio-surfactant during composting process, especially to those contain some toxic substances, has been proved to be a promising way. In this study, Strains Ⅲ(2), a bacterial with high activity to produce bio-surfactant, were isolated firstly. Following comparison experiments with and without adding Strains Ⅲ(2), namely Run 1 and Run R, were conducted, respectively. The experimental results showed that, by adding Strains Ⅲ (2),the surface tension could reduce from 46.5 mN/m to 39.8 mN/m and the corresponding time to maintain the surface tension under 50 mN/m could prolong from 60 h to 90 h. The oxygen uptake rate and total accumulated oxygen consumption with Stains Ⅲ (2) were both higher than those without Strains Ⅲ (2), while the accumulation of H2S in outlet gas was reduced to around 50% of Run R. Moreover, two additional experiments were also carried out to examine the effects of strains coming from different systems. One is adding Strains Ⅲ (2)with a dose of 0.4% (Run 2), and the other is seedling commercial Strains at the same conditions, the composting experiments showed that: Run 2 was more effective than Run 3, because the commercial Strains can be suppressed significantly in a complex composting system with different pH, high temperature and some of metals. The bio-surfactant was also added into the solid waste, which contained some toxic substances, the corresponding results showed that the remove rate of Hg and sodium pentachlorophenolate(PCP-Na) could be improved highly. Thus, the microenvironment, reactionrate and composting quality could be enhanced effectively by adding bio-surfactant to the composting process.     

染料废水脱色方法

染料污水中污染物主要来自一些成色物质，如活性黄、活性蓝、碱性紫、碱性蓝等，染料的可生化性一般都较差，并使污水呈现出一定的色度，影响了美观。本文就染料废水最新的一些脱色方法进行了探讨。