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饮食业油烟污染治理技术及其进展 总被引:2,自引:0,他引:2
张旭东 《甘肃环境研究与监测》2002,15(1):29-30,57
阐述了近年来国内外在治理油烟污染方面研究,应用较多的治理技术及正在发展中的新技术,指出了当前油烟污染治理技术存在的问题和发展方向。 相似文献
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环境分子诊断技术(EMDSs)是有机单体同位素分析和各种分子生物学技术的总称,将其应用于污染场地特征识别、修复方案可行性评估、监测和修复终止等污染场地环境管理过程中,探明土壤和地下水中污染物生物和非生物降解过程、降解速率及机制,确定不同污染来源,可弥补传统污染场地环境管理方法的不足,具有广阔的发展前景。文章综述了污染场地环境管理过程及传统方法的不足,介绍了有机单体同位素分析和各种分子生物学技术的基本原理和用途,并对各种技术的特点进行阐述和对比;介绍了EMDSs在污染场地环境管理中的实际应用,提出了EMDSs的发展趋势。 相似文献
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有机污染土壤修复技术研究进展 总被引:1,自引:0,他引:1
《环境研究与监测》2020,(1)
有机污染土壤中有机物种类繁多,对生态环境和人类健康存在极大的安全隐患。由于我国工农业的快速发展,诸多有机污染场地亟待治理修复,但我国的土壤治理修复工作相对于美国等发达国家起步较晚,针对有机污染因子种类繁多的污染土壤治理修复技术相对落后,在严峻的土壤修复形式下,有机污染土壤的治理修复得到了诸多科研工作者的关注。文章综述了现阶段针对有机污染土壤的治理修复技术,主要包括生物修复技术、物理修复技术以及化学修复技术。分析各类修复技术的技术原理,结合现阶段污染土壤治理修复工作现状,对其优缺点进行归纳,展望了有机污染土壤修复技术的应用前景,为我国今后开展有机物污染土壤的治理修复工作提供依据。 相似文献
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综述了环境污染的治理方法,侧重介绍了生物技术在三废治理、土壤及地下水污染治理中的应用,并介绍了一些污染治理技术的典型应用。 相似文献
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土壤重金属污染的工程危害及修复方法 总被引:5,自引:2,他引:3
分析了重金属污染对地基土和地下结构物的危害,比较了电动修复、土壤冲刷、原位土壤淋洗、化学固化修复土壤的优缺点,重点介绍固化/稳定化技术在修复重金属污染土壤中的应用。 相似文献
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Delineation of soil and groundwater contamination using geophysical methods at a waste disposal site in Çanakkale, Turkey 总被引:1,自引:0,他引:1
Direct current (DC) resistivity, self potential (SP) and very low frequency electromagnetic (VLF-EM) measurements are carried out to detect the spread of groundwater contamination and to locate possible pathways of leachate plumes, that resulted from an open waste disposal site of Canakkale municipality. There is no proper management of the waste disposal site in which industrial and domestic wastes were improperly dumped. Furthermore, because of the dumpsite is being located at the catchment area borders of a small creek and is being topographically at a high elevation relative to the urban area, the groundwater is expected to be hazardously contaminated. Interpretations of DC resistivity geoelectrical data showed a low resistivity zone (<5 ohm-m), which appears to be a zone, that is fully saturated with leachate from an open dumpsite. The VLF-EM and SP method, support the results of geoelectrical method relating a contaminated zone in the survey area. There is a good correlation between the geophysical investigations and the results of previously collected geochemical and hydrochemical measurements. 相似文献
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Srinivasamoorthy K Vijayaraghavan K Vasanthavigar M Rajivgandhi R Sarma VS 《Environmental monitoring and assessment》2011,182(1-4):47-60
Investigation has been made to identify groundwater vulnerability to pollution by using geoelectric and hydrochemical investigations in an important industrial town Mettur located in Tamilnadu state of India. Schlumberger vertical electric soundings were carried out in 23 locations and groundwater samples collected from bore wells in the same locations. The resistivity value with <20 Ωm up to a depth of 36 m indicate contamination of groundwater in areas influenced by sewages from industries, domestic and agricultural practices in the central and southern part of the study area. The calculated specific conductance was noted higher than EC in central and southern part of the study area with low resistivity indicating the contaminated nature of groundwater. Concentrations of Ca, Na, Mg and K along with Cl, HCO(3), SO(4) and NO(3) were higher in certain locations when compared with WHO and ISI standards. The facies concept demarcated four groups based on the nature of groundwater contamination. The trace elements Fe and Pb were higher in locations confined to industrial zones and Zn and Cu were within the prescribed limit in all the samples. 相似文献
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通过分析我国污染场地含水层监测现状和污染场地环境管理需求,指出我国污染场地含水层监测的不足之处并探讨了我国污染场地含水层监测技术研发趋势.当前,我国污染场地含水层监测主要以地下水监测为主,且监测仪器设备简陋陈旧、技术手段落后,不能满足数量日益增长的污染场地环境管理需求,急需发展一批新型、高效、经济、实用的监测技术和监测... 相似文献
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High ethyl-benzene and total petroleum hydrocarbons (TPHs) were found in the soil samples and groundwater samples during a
site environmental assessment for an old paint factory in the city Changchun, Jilin province of China. The target old paint
plant had been in operation for near 30 years by manufacturing resin and house paint. Driving force for this study was to
identify potential environmental contamination existing in this paint factory which is located next to a new resident area
under construction. The assessment result would be used as baseline environmental data input for remediation plan when the
factory site will be changed into potential resident area in near future. The analytical data from the soil samples from different
area of the factory which had high exposure to operation showed that solid waster storage area was contaminated with high
heavy metals (Cd, Pb, and Zn) and waster paint storage areas were contaminated with ethyl-benzene, xylene and C9-C30 aromatic
hydrocarbon solvent. The analytical data from the groundwater samples from different area of the factory showed that resin
plant area and waster paint storage areas were contaminated with high concentration of naphthalene, ethyl-benzene and xylene
which exceed the reference standard. Remediation action is recommended. 相似文献
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Assessment of Pollution Near Landfill Site in Nagpur, India by Resistivity Imaging and GPR 总被引:2,自引:0,他引:2
Pujari PR Pardhi P Muduli P Harkare P Nanoti MV 《Environmental monitoring and assessment》2007,131(1-3):489-500
Groundwater pollution in the vicinity of a landfill site in Nagpur, India is assessed with the help of resistivity imaging
and GPR tools. The resistivity imaging survey indicates high conductive anomalies in the topsoil as well as the underlying
fractured rocks. Significant reflections from the GPR records known as radargrams are extracted with the help of maximum peak
module and Hilbert transform module in RADAN 6. These reflections can be attributed to presence of fractures, which are potential
pathways for migration of the fluid. The geophysical findings are strengthened by the results of groundwater analysis from
wells located close to the profile where resistivity and GPR survey have been carried out. The study has indicated the vulnerability
of the unconfined aquifer underlying the predominantly clay layer. 相似文献
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The impact of Attenda abattoir, Ogbomoso southwestern Nigeria on four water sources was investigated using geoelectrical imaging and microbiological analysis. 2D electrical resistivity imaging indicated groundwater contamination by leachate from the abattoir. Electrical resistivity values measured by the traverse run directly on the waste dump and other areas impacted by the waste from the abattoir are generally very low (6.68-16.7 ?m) in comparison to other positions (135-288 ?m). The total viable bacteria count of the water samples ranged from 0.49 × 10(6) to 2.85 × 10(8) cfu/ml and all samples are contaminated with coliforms with the most probable number (MPN)/100 ml ranging from 110 to ≥ 1,600 MPN/100 ml. Among bacteria isolated from the study site (n = 95), resistance to eight antibiotics ranged from 35.8% to 94%. In addition, 85% of Streptococcus agalactiae (n = 31) and Staphylococci (n = 9) showed haemolytic activity while 92% of all isolates showed β-lactamase activity. These results suggest that operations of the abattoir may impact negatively on surrounding aquatic ecosystem and endanger the health of surrounding residents who use water from the wells for domestic purposes. Furthermore, such aquatic ecosystems may serve as reservoir of antibiotic resistant bacteria. 相似文献
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Nepal C. Mondal Ananda V. Rao Vijay P. Singh 《Environmental monitoring and assessment》2010,168(1-4):103-114
The accumulation of fluoride (F) in groundwater is a common phenomenon in India and worldwide. Its location can be identified through a direct hydrochemical analysis, which was carried out in Kurmapalli watershed (located 60 km SE of Hyderabad city), Nalgonda district, Andhra Pradesh, India affected by F contamination. The results of the hydrochemical analysis showed that F varied from 0.71 to 19.01 mg/l and its concentration exceeded the permissible limit (i.e., 1.5 mg/l) in 78% of the total 32 samples analyzed. The highest F value (19.01 mg/l) was found near Madnapur village, which is located in the central part of the watershed. Resistivity and induced polarization (IP) surveys were also carried out to reveal the zones where elevated F-contaminated groundwater exists. The objective of this paper was to highlight the utility of resistivity and IP surveys, using hydrochemical constituents as constraint, for the successful delineation of such contaminated/polluted groundwater zones in the granite area. 相似文献
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Tajul Baharuddin MF Taib S Hashim R Zainal Abidin MH Ishak MF 《Environmental monitoring and assessment》2011,180(1-4):345-369
Time-lapse resistivity measurements and groundwater geochemistry were used to study salinity effect on groundwater aquifer at the ex-promontory-land of Carey Island in Malaysia. Resistivity was measured by ABEM Terrameter SAS4000 and ES10-64 electrode selector. Relationship between earth resistivity and total dissolved solids (TDS) was derived, and with resistivity images, used to identify water types: fresh (ρ ( e ) > 6.5 Ω m), brackish (3 Ω m < ρ ( e ) < 6.5 Ω m), or saline (ρ ( e ) < 3 Ω m). Long-term monitoring of the studied area's groundwater quality via measurements of its time-lapse resistivity showed salinity changes in the island's groundwater aquifers not conforming to seawater-freshwater hydraulic gradient. In some aquifers far from the coast, saline water was dominant, while in some others, freshwater 30 m thick showed groundwater potential. Land transformation is believed to have changed the island's hydrogeology, which receives saltwater pressure all the time, limiting freshwater recharge to the groundwater system. The time-lapse resistivity measurements showed active salinity changes at resistivity-image bottom moving up the image for two seasons' (wet and dry) conditions. The salinity changes are believed to have been caused by incremental tide passing through highly porous material in the active-salinity-change area. The study's results were used to plan a strategy for sustainable groundwater exploration of the island. 相似文献
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Junki Yun Ju Young Lee Jeehyeong Khim Won Hyun Ji 《Environmental monitoring and assessment》2013,185(8):6855-6865
The purpose of this study was to assess contaminated soil and groundwater for the urban redevelopment of a rapid transit railway and a new mega-shopping area. Contaminated soil and groundwater may interfere with the progress of this project, and residents and shoppers may be exposed to human health risks. The study area has been remediated after application of first remediation technologies. Of the entire area, several sites were still contaminated by waste materials and petroleum. For zinc (Zn) contamination, high Zn concentrations were detected because waste materials were disposed in the entire area. For petroleum contamination, high total petroleum hydrocarbon (TPH) and hydrocarbon degrading microbe concentrations were observed at the depth of 7 m because the underground petroleum storage tank had previously been located at this site. Correlation results suggest that TPH (soil) concentration is still related with TPH (groundwater) concentration. The relationship is taken into account in the Spearman coefficient (α). 相似文献