期刊文献+
共找到108篇文章
< 1 2 6 >
每页显示 20 50 100
Exploring the relationship between ambient sulfur dioxide and semen quality parameters:A systematic review and meta-analysis 被引量:1
1
作者 Seyed Sobhan Bahreiny Mojtaba Aghaei +3 位作者 Mohammad Reza Dabbagh Hamid Ghorbani Moslem Javidan Reza Mohammadpour Fard 《Asian pacific Journal of Reproduction》 CAS 2024年第1期12-21,共10页
Objective:To investigate the relationship between ambient sulfur dioxide(SO2)exposure and semen quality parameters.Methods:A systematic literature search was conducted to identify relevant studies investigating the as... Objective:To investigate the relationship between ambient sulfur dioxide(SO2)exposure and semen quality parameters.Methods:A systematic literature search was conducted to identify relevant studies investigating the association between SO2 exposure and semen quality parameters.This search encompassed the timeframe from January 2000 to May 2023 and included electronic databases such as Web of Science,Google Scholar,PubMed,Cochrane,and Scopus.Pooled effect estimates with 95%confidence intervals(CI)were calculated using percent changes(PC).The meta-analysis included seven studies with 6711 participants and 15087 semen samples.Results:The results revealed a significant negative association between ambient SO2 exposure and certain semen quality parameters.In particular,SO2 exposure was associated with a significant decrease in progressive motility(PC=0.032;95%CI:-0.063 to-0.001;P=0.044)and sperm concentration(PC=-0.020;95%CI:-0.036 to-0.005;P=0.012).However,no statistically significant associations were observed for total sperm count(PC=-0.038;95%CI:-0.079 to 0.003;P=0.070),seminal fluid volume(PC=-0.009;95%CI:-0.048 to-0.030;P=0.662)and sperm motility(PC=-0.17;95%CI:-0.363 to 0.022;P=0.830).In addition,the results of the subgroup analysis revealed specific variables that were associated with the decrease in relevant sperm parameters.Conclusions:This systematic review and meta-analysis provides compelling evidence supporting a consistent negative association between exposure to ambient SO2 and semen quality parameters. 展开更多
关键词 Semen quality sulfur dioxide Ambient air pollution META-ANALYSIS
下载PDF
Copper slag assisted coke reduction of phosphogypsum for sulphur dioxide preparation
2
作者 Dong Ma Qinhui Wang 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2024年第1期43-53,共11页
The reduction of phosphogypsum(PG)to lime slag and SO_(2)using coke can effectively alleviate the environmental problems caused by PG.However,the PG decomposition temperature remains high and the product yield remains... The reduction of phosphogypsum(PG)to lime slag and SO_(2)using coke can effectively alleviate the environmental problems caused by PG.However,the PG decomposition temperature remains high and the product yield remains poor.By adding additives,the decomposition temperature can be further reduced and PG decomposition rate and product yield can be improved.However,the use of current additives such as Fe_(2)O_(3)and SiO_(2)brings the problem of increasing economic cost.Therefore,it is proposed to use solid waste copper slag(CS)as a new additive to reduce PG to prepare SO2,which can reduce the cost and meet the environmental benefits at the same time.The effects of proportion,temperature and thermostatic time on PG decomposition are investigated by experimental and kinetic analysis combined with FactSage thermodynamic calculations to optimize the roasting conditions.Finally,the reaction mechanism is proposed.It is found that adding CS to the coke and PG system can increase the rate of PG decomposition and SO_(2)yield while lowering the PG decomposition temperature.For example,when the CS/PG mass ratio increases from 0 to 1,PG decomposition rate increases from 83.38%to 99.35%,SO_(2)yield increases from 78.62%to 96.81%,and PG decomposition temperature decreases from 992.4℃to 949.6℃.The optimal reaction parameters are CS/PG mass ratio of 1,Coke/PG mass ratio of 0.06 at 1100℃for 20 min with 99.35%PG decomposition rate and 96.81%SO_(2) yield.The process proceeds according to the following reactions:2CaSO_(4)+ 0.7C + 0.8Fe_(2)SiO_(4)→0.8Ca_(2)SiO_(4)+ 0.2Ca_(2)Fe_(2)O_(5)+ 0.4Fe_(3)O_(4)+2SO_(2)+ 0.7CO_(2)Finally,a process for decomposing PG with coke and CS is proposed. 展开更多
关键词 PHOSPHOGYPSUM sulfur dioxide Copper slag FLUIDIZED-BED REDUCTION Waste treatment
下载PDF
Analysis of Sulfur Dioxide Concentration Around Bulk Curing Barn Group
3
作者 张远盖 蒋胜 +7 位作者 夏春 彭勇 雷晓 张明金 赵锦超 吴磊 陈亮 顾勇 《Agricultural Science & Technology》 CAS 2017年第7期1291-1294,1300,共5页
This study was conducted to analyze the spatial distribution of SO2 mass concentration around baking barn groups. A bulk curing barn group was selected as monitoring object, and SO2 concentration around it was monitor... This study was conducted to analyze the spatial distribution of SO2 mass concentration around baking barn groups. A bulk curing barn group was selected as monitoring object, and SO2 concentration around it was monitored for 2 years. The results showed that the SO2 mass concentration within 30-130 m from the baking barn group exceeded the standard, and with the ground as reference, the SO2 mass concentration at the position 0.9-2.1 m from the ground exceeded the stan- dard. According to the limit value of the SO2 mass concentration for sensitive crops, the SO2 mass concentrations over the standard were concentrated within the range of 200-300 m. On the basis of establishment of "sulfur control", "sulfur reduction" and "sulfur avoiding" system, the SO2 emission status of baking barn groups could be improved from the conversion of heat supply method, the utilization of clean en- ergy and adjustment of crop sensitive period and sensitive area. 展开更多
关键词 Bulk curing barn sulfur dioxide CONCENTRATION CROPS
下载PDF
Absorption of sulfur dioxide using membrane and enhancement of desorption with ultrasound 被引量:5
4
作者 薛娟琴 李京仙 +3 位作者 卢曦 毛维博 王玉洁 吴明 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2010年第5期930-934,共5页
The absorption of sulfur dioxide in simulated flue gas by using liquid-containing membrane was investigated.The process of sulfur dioxide desorption from the absorbent of citrate solution was explored.The influence of... The absorption of sulfur dioxide in simulated flue gas by using liquid-containing membrane was investigated.The process of sulfur dioxide desorption from the absorbent of citrate solution was explored.The influence of the gas-phase,and the liquid-phase on absorption efficiency of sulfur dioxide and the influence of ultrasonic frequency,ultrasonic power and stirring speed on desorption efficiency of sulfur dioxide were examined.The results indicate that the absorption efficiency decreases with increasing flow velocity and sulfur dioxide content in gas-phase,and can be improved by increasing the concentration and the pH value of citrate solution.It is concluded that lower ultrasonic frequency results in a better degassing efficiency.The using of ultrasound in desorbing sulfur dioxide from citrate solution improves the desorbing efficiency in the some conditions,without changing the essence of chemical reaction. 展开更多
关键词 sulfur dioxide ABSORPTION DESORPTION MEMBRANE ULTRASOUND CITRATE flue gas desulphurization
下载PDF
Control strategy for sulfur dioxide and acid rain pollution in China 被引量:4
5
作者 HAO Ji ming, WANG Shu xiao, LIU Bing jiang, HE Ke bin (Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China.E\|mail:hjm\|den@tsinghua.edu.cn) 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2000年第4期385-393,共9页
Several factors, namely, coal dominated primary energy mix, extensive economic development mode, inefficient energy utilization, and the imperfect environmental regulations, result in the serious urban sulfur dioxide... Several factors, namely, coal dominated primary energy mix, extensive economic development mode, inefficient energy utilization, and the imperfect environmental regulations, result in the serious urban sulfur dioxide pollution and large scale sulfate type acid precipitation in China. In 1995, China′s sulfur dioxide emissions reached 23.70 Mt, and the areas affected by acid rain accounted for 40% of the territory. Chinese government accords considerable importance to the sulfur dioxide and acid rain contamination. New sets of environmental friendly policies have been promulgated. But enforcement of laws and regulations on SO 2 emissions need to be further improved and broadened, especially those respond to market conditions. This paper focuses particular attention on the analysis of strategy, policies, and national actions which had or should be taken against sulfur dioxide emissions nationwide to achieve the environmental targets, on the basis of which gives the technical options in future. 展开更多
关键词 sulfur dioxide acid rain CONTROL
下载PDF
Theoretical Study on Sulfur Dioxide Absorption with Citrate Solution 被引量:3
6
作者 薛娟琴 洪涛 +1 位作者 王召启 李林波 《过程工程学报》 EI CAS CSCD 北大核心 2006年第3期388-391,共4页
关键词 citrate solution ABSORPTION sulfur dioxide theoretical analysis
下载PDF
Effects of metallic derivatives in adsorbent derived from sewage sludge on adsorption of sulfur dioxide 被引量:3
7
作者 翟云波 魏先勋 +1 位作者 曾光明 张德见 《Journal of Central South University of Technology》 2004年第1期55-58,共4页
The sewage sludge was used to produce adsorbent by controlling the pyrolytic and chemical conditions. Using the adsorbent derived from sewage sludge to adsorb the low concentration SO2 in fixed bed system, the effects... The sewage sludge was used to produce adsorbent by controlling the pyrolytic and chemical conditions. Using the adsorbent derived from sewage sludge to adsorb the low concentration SO2 in fixed bed system, the effects of the metallic derivatives on characteristics of the adsorbent were investigated at different compositions of the gaseous mixtures. The results show that when the mass fraction of vanadium reaches 0.5% and the mass fraction of (iron,) calcium, copper, nickel reach approximately 0.9%, under the condition that the adsorption mixture contains (0.12%SO2,) 3%O2 and 10% water vapor, the maximum adsorption capacity of SO2 can be obtained to be 128, 109, 90, 82, 78 mg·g-1, respectively. So the metallic derivatives fixed onto adsorbent derived from sewage sludge especially vanadium have great effects on of the sorption characteristics of the adsorbent with respect to SO2. 展开更多
关键词 ADSORPTION ADSORBENT sewage sludge metal sulfur dioxide
下载PDF
Ozonation of Sulfur Dioxide in Sulphuric Acid Solution 被引量:2
8
作者 刘丽梅 张书廷 +2 位作者 吕学斌 于晓艳 支苏丽 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2013年第7期808-812,共5页
In this study, the oxidation rates of sulfur dioxide (SO2) in sulphuric acid solution by ozone and oxygen were compared, and the oxidation mechanism of ozone on SO2 was investigated. The results showed that the oxid... In this study, the oxidation rates of sulfur dioxide (SO2) in sulphuric acid solution by ozone and oxygen were compared, and the oxidation mechanism of ozone on SO2 was investigated. The results showed that the oxidation-reduction potential of the acidic solution was enhanced, the transformation rate of sulfuric acid to sulphuric acid was increased and the absorption driving force was improved in the presence of ozone. By comparing the amount of sulfate ions measured in the experiments and the theoretical amount of sulfate ions calculated from the amount of ozone consumed in the reaction, it can be confirmed that oxygen free radicals from dissociation of ozone are reactive as an efficient oxidant and oxygen from ozone generator participates in the reaction with SO2. 0.602 mol of effective oxygen was introduced into the reaction by one mole of ozone in 10.15 rain at sulphuric acid concentration of 3% (by mass), SO2 concentration of 1.33% (by volume) and oxygen flow rate of 1.5 L.min^-1 from ozone generator. 展开更多
关键词 OZONE sulfur dioxide DEsulfurIZATION sulphuric acid flue gas
下载PDF
Atmospheric Corrosion of Steel A3 Deposited with Ammonium Sulfate and in the Presence of Sulfur Dioxide 被引量:2
9
作者 YeWAN ChuanweiYAN +1 位作者 ChunanCAO JunTAN 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2003年第5期453-455,共3页
A laboratory study of the atmospheric corrosion of carbon steel deposited with (NH4)2SO4 in the presence of SO2 is reported. The different levels of (NH4)2SO4 (0, 15, 30, 45, 60 μg·cm-2) were added on the surfac... A laboratory study of the atmospheric corrosion of carbon steel deposited with (NH4)2SO4 in the presence of SO2 is reported. The different levels of (NH4)2SO4 (0, 15, 30, 45, 60 μg·cm-2) were added on the surface of the samples before the exposure. The corrosion was investigated by a combination of gravimetry, Fourier transform infrared spectroscope and scanning electron microscopy. A detailed knowledge about the corrosion products was acquired, both quantitatively and qualitatively. The results show that the metal loss increased and the increasing tendency of corrosion rates slowed down with the increasing exposure time. The phase constituents of the corrosion products are mainly α-FeO(OH), γ-FeO(OH), and δ-FeO(OH). 展开更多
关键词 Steel A3 Atmospheric corrosion DEPOSITION Ammonium sulfate sulfur dioxide
下载PDF
Photochemical reaction of magnesium tetraphenyl porphyrin with sulfur dioxide 被引量:2
10
作者 Jian Bin Zhang Chun Ping Li +5 位作者 Tian Rui Huo Zhan Ying Liu Li Hua Liu Tong Zhang Dong Yan Zhang Xiong Hui Wei 《Chinese Chemical Letters》 SCIE CAS CSCD 2010年第7期787-789,共3页
The photochemical reaction of magnesium tetraphenyl porphyrin(MgTPP) with sulfur dioxide(SO_2) was investigated in dichloromethane(CH_2Cl_2) by steady-state fluorescence,UV-vis absorption,MS,and XRD spectroscopi... The photochemical reaction of magnesium tetraphenyl porphyrin(MgTPP) with sulfur dioxide(SO_2) was investigated in dichloromethane(CH_2Cl_2) by steady-state fluorescence,UV-vis absorption,MS,and XRD spectroscopic techniques.These spectra showed that under irradiation MgTPP reacted with SO_2 to form 1:1 molecular adduct at first step.During the process of keeping irradiation and maintaining the flow of SO_2,SO_2 was reduced into S^(2-) by MgTPP and the results were detected using MS and XRD techniques.Understanding the photochemical reaction of MgTPP with SO_2 is of key interest in elucidating fundamental photochemical reaction mechanisms associated with this class of chlorophyll in the presence of SO_2. 展开更多
关键词 Photochemical reaction sulfur dioxide Magnesium tetraphenyl porphyrin(MgTPP)
下载PDF
Sulfur dioxide-hydrogen peroxide relationships and acidification of precipitation in Guiyang area-a case study 被引量:1
11
作者 Shen Ji, Zhao Qianxue, Zhang Xiaoshan, Zhang Baozhu, Zhao Dianwu, Fan Zenghua and Cheng PanjiangResearch Center for Eco-Environmental Sciences,Academia SinicaGuizhou Institute of Environmental SciencesSichuan Istitute of Environmental Research and Monitoring 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 1991年第1期41-58,共18页
-The concentrations of gas phase SO2, O3 and chemical composition of sequential rainwater samples were measured on 6/11/88 to 6/28/88 at some sites of Guiyang area. S (IV) was present in great excess of H2O2 in rainwa... -The concentrations of gas phase SO2, O3 and chemical composition of sequential rainwater samples were measured on 6/11/88 to 6/28/88 at some sites of Guiyang area. S (IV) was present in great excess of H2O2 in rainwater samples collected at residential sites of the city corresponding to high level of gas phase SO2. Considerable H2O2 in rainwater samples was observed in background air at suburbs. The evidence that clean rainwater samples were collected at 20km away from the city in 6/18/88 precipitation event revealed that the major process of acidification of the rain in the high polluted areas was below-cloud scavenging of trace gases. From a simulation calculation it was found that the rate of oxidation of S(IV) by O3 and by Mn2+, Fe3+ catalytic in high pH rainwater is significant, but for low pH the major SO42- is produced by the reaction of S (IV) with H2O2. 展开更多
关键词 hydrogen peroxide sulfur dioxide acid rain below-cloud scavenging.
下载PDF
Photocatalytic Reaction of Sulfur Dioxide with Heptane in the Gas-phase Over Titanium Dioxide
12
作者 DU Yao guo SHANG Jing XU Zi li 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2000年第3期203-207,共5页
The photocatalytic reaction of sulfur dioxide with heptane was carried out with the aid of UV illuminated titanium dioxide ultrafine particles(UFP) at room temperature. The TiO 2 UFP was prepared by means of colloid... The photocatalytic reaction of sulfur dioxide with heptane was carried out with the aid of UV illuminated titanium dioxide ultrafine particles(UFP) at room temperature. The TiO 2 UFP was prepared by means of colloidal chemical method. The structure and the surface state of the as prepared TiO 2 UFP via different heat treatments were studied. As the calcining temperature decreased, the contents of hydroxyl on the surface increased, which could help to enhance the photocatalytic activity of the TiO 2 UFP. The mechanism of the photocatalytic reaction of sulfur dioxide with heptane was proposed, in which there was a competition of photocatalytic oxidation between sulfur dioxide and heptane over the TiO 2 UFP. It is inferred that the reactive oxygen species play an important role in the photocatalytic reaction of sulfur dioxide with heptane. 展开更多
关键词 sulfur dioxide HEPTANE Titanium dioxide photocatalysis Reactive oxygen species
下载PDF
Theoretical Study of Small Water Clusters of Sulfur Dioxide
13
作者 赵亚英 曾永平 +1 位作者 张锡辉 陶福明 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2010年第4期499-508,共10页
The intermolecular clusters of sulfur dioxide with water, SO2(H2O)n (n = 2~5), are studied by using B3LYP density functional theory and MP2 ab initio methods along with the large basis sets (6-311++G(d,p) an... The intermolecular clusters of sulfur dioxide with water, SO2(H2O)n (n = 2~5), are studied by using B3LYP density functional theory and MP2 ab initio methods along with the large basis sets (6-311++G(d,p) and aug-cc-pVDZ). The equilibrium geometries, intermolecular binding energies, and anharmonic frequencies of the clusters are calculated and compared with those of pure water clusters and available experiments. SO2 tends to form cyclic hydrogen-bonded complexes with two or three water molecules. In the larger clusters, however, water molecules begin to retain the structure of pure water clusters and segregate from SO2. Infrared absorption assignments for the small clusters are discussed to resolve a possible incorrect assignment in a recent spectroscopic experiment on the clusters. 展开更多
关键词 SO Theoretical Study of Small Water Clusters of sulfur dioxide LYP MP
下载PDF
Purification Effect of Potted Taxus for Indoor Sulfur Dioxide Pollution
14
作者 李青 李荣华 +1 位作者 梁军 袁晓 《Agricultural Science & Technology》 CAS 2017年第11期2064-2066,共3页
The aim was to explore the purification ability of potted taxus for indoor sulfur dioxide pollution. Three taxus cultivars were placed in different rooms. The air in the rooms was sampled continuously at the flow rate... The aim was to explore the purification ability of potted taxus for indoor sulfur dioxide pollution. Three taxus cultivars were placed in different rooms. The air in the rooms was sampled continuously at the flow rate of 0.5 ml/min, and the content of sulfur dioxide was determined by formaldehyde absorbing-pararosaniline spectrophotometry. The obtained linear equation for sulfur dioxide was as follows: y=0.030 1 x+0.023 5, F=0.999 7. The content of sulfur dioxide in the three rooms placed with different taxus cultivars all declined, suggesting that potted taxus has a certain ability to purify sulfur dioxide. Among the taxus cultivars, Taxus yunnanensis showed the highest purification rate, followed by Taxus chinensis vat. mairei and Taxus media cv. Hicksii. 展开更多
关键词 TAXUS Indoor air sulfur dioxide PURIFICATION
下载PDF
Comparison of Sulfur Dioxide Residue in Chinese Me-dicinal Materials by Titration-fluorescence Spectrome-try and Pharmacopoeia Method
15
作者 Ma Donglai Shen Zhengxian +5 位作者 Du Huiru Zhang Zhidong Jiang Cuilan Wang Liang Li Jing Zheng Yuguang 《Animal Husbandry and Feed Science》 CAS 2017年第2期112-114,共3页
With sulphur-fumigated Chinese medicinal materials (Fritillaria thunbergii , Isatis #utigotica , Asparagus cochinchinensis and Poria cocos ) as the test materials, sulfur dioxide or sulfite residue was determined by... With sulphur-fumigated Chinese medicinal materials (Fritillaria thunbergii , Isatis #utigotica , Asparagus cochinchinensis and Poria cocos ) as the test materials, sulfur dioxide or sulfite residue was determined by the method in Chinese Pharmacopoeia (2015 edition) and titration-fluorescence spectrometry, respec- tively. The results showed that there were significant differences in measured value between titration-fluorescence spectrometry and phmmacopoeia method. The t result of titration-fluorescence spectrometry was much closer to the actual content of sulfur dioxide in Chinese medicinal materials. Thus, titration-fluo- rescence spectrometry had higher application value 展开更多
关键词 Titration-fluorescence spectrometry Chinese Pharmacopoeia sulfur dioxide Chinese medicinal materials RESIDUE
下载PDF
Study on Control Strategy of Sulfur Dioxide Concentration in the Urban Area of Shijiazhuang
16
作者 李光军 于立军 +2 位作者 范丽 王宇新 赵根喜 《Transactions of Tianjin University》 EI CAS 2003年第3期247-251,共5页
Two Gaussian air quality dispersion models, the industrial source complex short-term model (ISCST3) with and without modification have been used to simulate the pollutant concentration distribution in urban areas base... Two Gaussian air quality dispersion models, the industrial source complex short-term model (ISCST3) with and without modification have been used to simulate the pollutant concentration distribution in urban areas based on the meteorological data and the emissions distribution of sulfur dioxide. The verified data show that the modified model is more accurate in the urban area of Shijiazhuang. Using the modified model predictions, the control strategies of sulfur dioxide in the urban area have been studied, and the result show that the second long-term (to 2010) strategy can mitigate air pollution significantly and maintain pollution levels within permissible limits. 展开更多
关键词 air quality industrial source complex short-term model (ISCST3) sulfur dioxide control strategy
下载PDF
Effects of sulfur dioxide on growth, gas exchange rate and leaf sulfur content of massion pine seedlings
17
作者 Yang Liang United Graduate School,Tokyo University of Agriculture and Technology,Fuchu,Tokyo 183,Japan Takeshi Izuta Tsumugu Totsuka (Department of Environmental Sciences and Resources,Faculty of Agriculture,Tokyo Universtiy of Agriculture and Technology, 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 1994年第3期268-276,共9页
The effects of sulfur dioxide(SO_2) on the dry weight growth gas exchange rate and leaf sulfur content of massion pine(Pinus massoniana Lamb. )were investigated. The results obtained in this study show that the dry we... The effects of sulfur dioxide(SO_2) on the dry weight growth gas exchange rate and leaf sulfur content of massion pine(Pinus massoniana Lamb. )were investigated. The results obtained in this study show that the dry weight growth and net photosynthetic rate of masson pine seedlings are reduced by exposure to SO_2 at ≥100 ppb. From these results,one of the main causes in the dieback of masson pine forest reported in Chongqing,China may be relatively high concentrations of atmospheric SO_2 in the relevant area. 展开更多
关键词 sulfur dioxide(SO_2) Pinus massoniana Lamb. dry weight growth gas exchange rate leaf sulfur content.
下载PDF
SELECTIVE SULFUR DIOXIDE DETERMINATION BY GAS DIFFUSION FLOW INJECTION ANALYSIS WITH CHEMILUMINESCENT DETECTION
18
作者 Yong He BAO Qi Jun SONG Department of Chemistry,XingJiang University,Urumchi,830046 《Chinese Chemical Letters》 SCIE CAS CSCD 1991年第4期313-314,共2页
Sulfur dioxide has been found to decrease the chemiluminescence of luminol-iodine system.A new determination method for sulfur dioxide in atmosphere is developed by applying this reaction to a flow injection gas diffu... Sulfur dioxide has been found to decrease the chemiluminescence of luminol-iodine system.A new determination method for sulfur dioxide in atmosphere is developed by applying this reaction to a flow injection gas diffusion separation system.This permits the determination of sulfur dioxide selectively and rapidly. 展开更多
关键词 FLOW SELECTIVE sulfur dioxide DETERMINATION BY GAS DIFFUSION FLOW INJECTION ANALYSIS WITH CHEMILUMINESCENT DETECTION GAS
下载PDF
Sulfur Dioxide Emission Control,Blockade and Drainage
19
作者 Wang Zhixuan Jin Wen 《Electricity》 2005年第3期55-57,共3页
This paper presents the present status of sulfur dioxide emission from thermal plants in China, tells the main problems existing in its emission control and finally gives out suggestions to the problems, that is, to c... This paper presents the present status of sulfur dioxide emission from thermal plants in China, tells the main problems existing in its emission control and finally gives out suggestions to the problems, that is, to constitute complete standards and regulations and enhancesupervision accordingly. 展开更多
关键词 sulfur dioxide emission control STANDARD SUPERVISION
下载PDF
Numerical Simulation on the Rainout-Removal of Sulfur Dioxide and Acidification of Precipitation from Stratiform Clouds
20
作者 秦瑜 《Advances in Atmospheric Sciences》 SCIE CAS CSCD 1989年第1期75-87,共13页
The rainout-removal of SO2 and the acidification of precipitation from stratiform clouds are simulated using a one-dimensional, time-dependent model, parameterized microphysically in which dissolution and dissociation... The rainout-removal of SO2 and the acidification of precipitation from stratiform clouds are simulated using a one-dimensional, time-dependent model, parameterized microphysically in which dissolution and dissociation of gaseous SO2 and H2O2, and oxidation reaction in aqueous phase are taken into account. The effects of dynamic factors, including updraft flow and turbulent transport, and the concentration of gaseous SO2 and H2O2 being transported into the clouds on pH value of the precipitation, the conversion rate S(Ⅳ)-S(Ⅵ) and the wet deposition rate of SO2 are discussed. 展开更多
关键词 Numerical Simulation on the Rainout-Removal of sulfur dioxide and Acidification of Precipitation from Stratiform Clouds
下载PDF
上一页 1 2 6 下一页 到第
使用帮助 返回顶部