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Arsenic compounds are highly toxic and the toxicity of trivalent arsenic compounds is more powerful than others. There are many ways of its determination. This article describes the determination of trace Arsenic in Qin River by Paper Absorption Spectrophotometry. The result indicate that the limit of detection of this method is 0.001 mg/L, the standard deviation is 0.0007 mg/L and the mark-on recovery...
In connection with the uncertainty problem of pollutants diffusing in the atmosphere of Wuan city, we monitor and put forward a new conception about air ground pollution belt, and get two-dimensional finite difference equation of air pollution. Meanwhile dispersion coefficient and wind speed are considered as grey parameters. One grey numerical quality model of air pollution is built according to...
In this article, a series of ecological environment problems of Liaocheng city, such as the exploitation of groundwater, water-pollution, air pollution, noise, land salinization, and forest cover rate are discussed in details. Taking these problems into consideration, the author puts forward some feasible strategies and suggestions which can direct the development of eco-environment in a right way...
Qingdao Licang District is a traditional industrial area. For the existing environmental conditions in Licang District, various pollution indicators through analysis of data on the local atmospheric pollution are summarized in this paper. We have gathered the composition of major pollutants causing pollution in Licang District. So we get the main sticking point of the problem affecting the quality...
For it has so many advantages multimedia supplementary teaching has been widely used nowadays. This paper introduces how to conform the multimedia and the environmental teaching on the basis of the practice of the environmental teaching. It also reveals several problems needing attention about the multimedia teaching process. In addition, it put forward that we should combine the multimedia teaching...
The concept and category was discussed in this paper, which introduces the present situation and several basic questions and studied methods of environmental information technology, centers on several kinds of environmental information technology, and prospects for the developmental trend of it. It is important to solve environmental problems, prevent environmental pollution, benefit human beings.
The cleaner production and environmental management system of ISO14000 are important measures focusing on prevention both about environmental protection and management, which have important environmental significance and lay a solid foundation for China's sustainable development. This article describes the concept of cleaner production and ISO14000, and analyzes the differences and similarities between...
With the development of high transportations and urban road construction, the noise pollution generated by traffic is a significant and growing problem. Sound barrier, an effective and comparatively inexpensive measure of reducing noise levels, will be developed to some degree. It will do much benefit to the living quality of the residents along the road if we can take good advantages of its technical...
Because of the uncertainty problem of pollutants diffusing in the atmosphere of Handan city, we monitor and put forward a new conception about air ground pollution belt, and get two-dimensional finite difference equation of air pollution. Meanwhile dispersion coefficient and wind speed are considered as grey parameters. One grey numerical quality model of air pollution is built according to grey theory...
Sulfur dioxide is a kind of poisonous and harmful gas, and will pollute atmosphere environment if exhaust it directly. There are a lot of treatment methods so far. In this paper, it summarizes the main ideas and main characteristics, as well as the necessity for carrying out the discharge right which is used to solve the sulfur dioxide pollution and proposes the design logos of SO2 pollution discharge...
The principle and advantages of the speedy monitoring instrument of SO2 are introduced in this paper, and the reliability, accuracy and precision are determined by the comparison of routine analysis. In the meantime, the method can monitor quickly SO2 in the air at a site without power, water source and experimental platform, and the analysis of a sample needs only 3 seconds.
By mean of monitoring SO2 and NOx, we put forward a new conception about air ground pollution belt, and get two-dimensional finite difference equation of air pollution. Meanwhile dispersion coefficient and wind speed are considered as gray parameters. One gray numerical quality model of air pollution is built according to gray theory and applies to the air pollution diffusing system of Handan city,...
Fuzzy mathematics method is used to establish the corresponding membership function in order to analyze the water quality during specific years and forecast its trend. The result shows that using fuzzy comprehensive evaluation can scientifically evaluate the water quality of Zhanghe River, obtaining the V, V, III, II levels for different years and producing the prevention measures.
In order to set up a water quality assessment system for Zhanghe river fittingly, a fuzzy comprehensive evaluation model based on fuzzy theory is studied. The application of this method to evaluate the water quality in Xida section is given as an example for demonstration. According to the environmental quality standard of surface water, the membership function is established. So as to ensure the...
Sulfur dioxide is a kind of poisonous and harmful gas, and will pollute atmosphere environment if exhaust it directly. There are a lot of desulfurization methods so far. The desulfurization efficiency of dry-desulfurization agent that is made under the same proportion, hydration temperature and hydration time is studied in this paper. The results indicate that the desulfurization efficiency of the...
Noise pollution by industrial enterprises is one of the main sources of pollution. In this paper, according to the monitor results of air compressor room noise of the rubber factory, analyze the causes and the characteristics of the noise pollution and put forward the control methods and measures. The results show that after treatment the noise reduce 26 dB and put forward the feasibility of setting...
Basing on the monitoring data of water quality of LiuJiazhuang section and the analysis results of 4 years, applying fuzzy comprehensive evaluation model, according to LtEnvironmental quality standard for surface waterGt to establish the relevant subjection functions, the quality evaluation of surface water in LiuJiazhuang section is made in this paper. The result shows that the change about the water...
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