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Bio-oxidation of methane in a landfill environment is important for mitigating global methane emissions into the atmosphere. In the present study, the characteristics of methane bio-oxidation and methane-oxidizing microorganisms were studied by enrichment cultivation using fresh and aged leachate (collected from Qizishan Landfill, Suzhou, China). Both aerobic and anaerobic methane oxidation were detected,...
A comprehensive analysis of normalized difference vegetation index (NDVI), land-use type, and digital elevation model (DEM) data by using the geographic information system (GIS) showed that the index had increased over time in 84 prefectures that were part of the Grain for Green Project. SPOT Vegetation (Satellite Pour l’Observation de la Terre Vegetation, or satellite observation of the earth’s vegetation)...
For more efficient utilization of agricultural organic waste composts, this research formulates the demand of agricultural organic waste composts and the supply of compost converted from agricultural organic waste in the region, and models the demand-supply balance of agricultural organic waste compost in some regions. Objects of study include 6 urban districts, 5 county-level cities, and 21 counties...
To assess the impact of human activity on the nitrogen (N) cycle and evaluate the sources of N in surface water, the N budget for Laoguanhe River Watershed (LRW), a typical agricultural watershed and one of the upstream tributaries of Danjiangkou Reservoir in China, was developed by using measurement data on N fluxes and literature data on other parameters. Over the whole watershed, fertilizers, human...
Controlling carbon emissions without impairing urbanization and economic development highlights the necessity of researching energy-related carbon emissions. Urban areas have become the main source of energy consumption and carbon emissions. This paper has developed a modified version of the Kaya identity, which incorporates urbanization and resident consumption, to analyze urbanization effect on...
There is convincing evidence that climatic variation and human activities are key factors impacting the hydrological behavior of a watershed. But little attention has been paid to such impacts on mesoscale and microscale forest basins, and key details remain unresolved. In this study, a small forest watershed in north China was selected as our study object. Separate evaluation and statistical methods...
We applied decoupling relationship analysis in this study to explore the relationship between agricultural carbon emissions and agricultural economic growth using data from Hotan prefecture in 1999-2013. The results demonstrated: 1. During 1999-2013 the decoupling index between agricultural carbon emissions and agricultural economic growth showed a “decoupling, hooking, and decoupling” three-state...
We based our research on real-time monitoring data for PM2.5 at the Beijing Municipal Environmental Protection Monitoring Center of Haidian Beijing Botanical Garden (a vegetated area), and at Haidian Wanliu (a non-vegetated area). By combining these two data points with the PM2.5 and meteorological data from a separate monitoring station in Beijing Botanical Garden’s forest interior, we analyzed the...
The main aim of this study was to describe the adsorption behaviours of acetaminophen (APAP) onto colloid and solid particle in sediment in terms of their impact on the factors of the processes (e.g., contact time, temperature, kinetic, thermodynamic characteristics) that were analyzed systematically. Sediment was collected from a typical tributary in the mid-Weihe River and a separation device was...
Novel pollutant control equipment, which were called integrated pollutant control equipment, consisted of bag filters and activated carbon (AC) absorbers. The AC absorbers were put forward to absorb the additional pollutants between the old and new emission standards to satisfy Chinese emission standards. The absorbers could be fixed (mobile) bed, annular column, or fluidized bed. The numerical method...
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