全文获取类型
收费全文 | 284篇 |
免费 | 4篇 |
国内免费 | 20篇 |
专业分类
安全科学 | 5篇 |
废物处理 | 71篇 |
环保管理 | 56篇 |
综合类 | 94篇 |
基础理论 | 8篇 |
污染及防治 | 42篇 |
评价与监测 | 27篇 |
社会与环境 | 3篇 |
灾害及防治 | 2篇 |
出版年
2023年 | 4篇 |
2022年 | 3篇 |
2021年 | 6篇 |
2020年 | 9篇 |
2019年 | 2篇 |
2018年 | 4篇 |
2017年 | 5篇 |
2016年 | 5篇 |
2015年 | 7篇 |
2014年 | 37篇 |
2013年 | 22篇 |
2012年 | 13篇 |
2011年 | 9篇 |
2010年 | 6篇 |
2009年 | 8篇 |
2008年 | 15篇 |
2007年 | 24篇 |
2006年 | 18篇 |
2005年 | 17篇 |
2004年 | 16篇 |
2003年 | 16篇 |
2002年 | 11篇 |
2001年 | 12篇 |
2000年 | 7篇 |
1999年 | 10篇 |
1998年 | 9篇 |
1997年 | 2篇 |
1996年 | 2篇 |
1995年 | 2篇 |
1994年 | 2篇 |
1991年 | 1篇 |
1989年 | 2篇 |
1988年 | 1篇 |
1987年 | 1篇 |
排序方式: 共有308条查询结果,搜索用时 15 毫秒
51.
采用A/O-电催化氧化法处理村镇垃圾中转站渗滤液,并针对工艺核心电催化氧化单元的相关运行参数进行探究。结果表明:使用椰壳活性炭作为粒子电极基体材料,以Sn-Sb作为活性催化剂,在初始pH值<7、外加电压15 V条件下,电解中转站垃圾渗滤液效果较好;联合工艺连续运行阶段,当水力停留时间达到11 d时,原水COD从(31 098±1 270)mg/L下降到(391±44)mg/L,渗滤液可生化性(B/C)从0.336±0.020提升到0.719±0.024,可生化性显著增强。 相似文献
52.
53.
54.
Rajendra Kumar Foolmaun Dinkar Sharma Chamilall 《Resources, Conservation and Recycling》2011,55(11):966-972
In Mauritius, solid waste disposal has been a cause for concern since the 1980s. Currently, there is no segregation of waste and some 1200 tonnes of solid waste are generated daily by the 1.24 million inhabitants of the island. As processes such as recycling and composting are still in their infancy stage, most of the waste generated have to be disposed of at the sole landfill. The solid waste management practices of 1980s and early 1990s are no longer compatible with the changing composition and quantity of wastes now generated. As a result, there is an urgency to review the whole waste management system and come forward with sustainable solutions.This paper presents an overview of the disposal of non-hazardous solid waste in Mauritius and provides recommendations for improving the current disposal system. 相似文献
55.
伴随垃圾填埋量逐年增加,环境污染问题愈发严重,垃圾填埋场地的适宜性评价也变的更加重要。采用层次分析法,综合考虑了工程建设、运行管理、生态建设3大因素,构建了一套填埋场适宜性评价指标体系,并应用于吴忠市垃圾填埋场。实例应用表明,该方法选取的评价因素较全面,客观反映了吴忠市垃圾填埋场的实际情况,具有借鉴意义。 相似文献
56.
Yanfeng Yang Ruina Zhang Ziyang Lou 《Frontiers of Environmental Science & Engineering》2022,16(12):158
57.
Characterization and control of odorous gases at a landfill site: a case study in Hangzhou, China 总被引:4,自引:0,他引:4
Ying D Chuanyu C Bin H Yueen X Xuejuan Z Yingxu C Weixiang W 《Waste management (New York, N.Y.)》2012,32(2):317-326
Municipal solid waste (MSW) landfills are one of the major sources of offensive odors potentially creating annoyance in adjacent communities. At the end of May 2007, an odor pollution incident occurred at the Tianziling landfill site, Hangzhou, China, where the residents lodged complaints about the intense odor from the landfill, which drew a significant attention from the government. In this study, ambient air monitoring was conducted at the Tianziling landfill site. The main odor composition of the gas samples collected on June 1st 2007 and the reduction of various odorous gases from the samples collected on June 1st 2009 due to the applied odor control techniques were determined using gas chromatography-mass spectrometry (GC-MS). In addition, variations of primary odorous gaseous (NH3 and H2S) concentrations at different locations in the landfill site from July 2007 to June 2009 were also investigated by using classical spectrophotometric methods. Results showed that a total of 68 volatile compounds were identified among which H2S (56.58-579.84 μg/m3) and NH3 (520-4460 μg/m3) were the notable odor components contributing to 4.47-10.92% and 83.91-93.94% of total concentrations, respectively. Similar spatial and temporal shifts of H2S and NH3 concentrations were observed and were significantly affected by environmental factors including temperature, air pressure and wind direction. Odor pollution was worse when high temperature, high humidity, low air pressure, and southeast, northeast or east wind appeared. Moreover, the environmental sampling points of the dumping area and the leachate treatment plant were found to be the main odor sources at the Tianziling landfill site. The odor control technologies used in this project had a good mitigating effect on the primary odorous compounds. This study provides long-term valuable information concerning the characteristics and control of odors at landfill sites in a long run. 相似文献
58.
Gorsevski PV Donevska KR Mitrovski CD Frizado JP 《Waste management (New York, N.Y.)》2012,32(2):287-296
This paper presents a GIS-based multi-criteria decision analysis approach for evaluating the suitability for landfill site selection in the Polog Region, Macedonia. The multi-criteria decision framework considers environmental and economic factors which are standardized by fuzzy membership functions and combined by integration of analytical hierarchy process (AHP) and ordered weighted average (OWA) techniques. The AHP is used for the elicitation of attribute weights while the OWA operator function is used to generate a wide range of decision alternatives for addressing uncertainty associated with interaction between multiple criteria. The usefulness of the approach is illustrated by different OWA scenarios that report landfill suitability on a scale between 0 and 1. The OWA scenarios are intended to quantify the level of risk taking (i.e., optimistic, pessimistic, and neutral) and to facilitate a better understanding of patterns that emerge from decision alternatives involved in the decision making process. 相似文献
59.
宁波市城市污水处理厂污泥处置方案探讨 总被引:2,自引:0,他引:2
随着城市污水处理率提高导致的污水污泥产量的增长趋势也使得污水污泥的处理问题更为突出。在总结国内外城市污泥处置技术发展趋势的基础上,结合宁波市的实际情况,根据无害化、减量化和资源化的原则,提出城市污泥近远期处置方案,并对处置方案作出可行性分析。 相似文献
60.
Variations in the chemical properties of landfill leachate 总被引:4,自引:0,他引:4
Landfill leachates were collected and their chemical properties analyzed once every two months over a ten-month period from
the Gin Drinkers' Bay (GDB) and Junk Bay (JB) landfills. The contents of solids, and inorganic and organic components fluctuated
considerably with time. In general, the chemical properties of the two leachates correlated negatively (P<0.05) with the amounts of rainfall prior to the sampling periods. However, magnesium and pH of the leachates remained relatively
constant with respect to sampling time. The JB leachate contained higher average contents of solids and inorganic and organic
matter than those of GDB with the exception of trace metals. Trace metals were present in the two leachates in trace quantities
(<1.0 mg/liter). The concentrations of average ammoniacal nitrogen were 1040 and 549 mg/liter, while chemical oxygen demand
(COD) values were 767 and 695 mg/liter for JB and GDB leachates, respectively. These results suggest that the leachates need
further treatment before they can be discharged to the coastal waters. 相似文献