2010 International Conference on Environmental Engineering and Applications最新文献_第5页

Climate change: Forestry, a step in the right direction 气候变化:林业，朝着正确方向迈出的一步

2010 International Conference on Environmental Engineering and Applications Pub Date : 2010-10-07 DOI: 10.1109/ICEEA.2010.5596092

A. Adio, A. Ojo, I. Asinwa

引用次数: 1

Assessing levels of lead (Pb) in urban dust for public health management 城市粉尘中铅(Pb)水平的公共卫生管理评估

2010 International Conference on Environmental Engineering and Applications Pub Date : 2010-10-07 DOI: 10.1109/ICEEA.2010.5596090

L. F. Ona

{"title":"Assessing levels of lead (Pb) in urban dust for public health management","authors":"L. F. Ona","doi":"10.1109/ICEEA.2010.5596090","DOIUrl":"https://doi.org/10.1109/ICEEA.2010.5596090","url":null,"abstract":"This study aimed to assess the extent of lead contamination of dust collected from selected public and private elementary schools in Tarlac City, Philippines in order to provide background information to environmental regulators and public health managers responsible for developing meaningful action and responses to environmental health problems. The objectives of this study were: (1) to measure the levels of lead in dust from selected public and private elementary schools in Tarlac City; (2) to determine if lead dust hazards are present in the study areas by comparing the results to lead dust hazard standards set by the United States (EPA); and (3) to recommend measures for lead hazard reduction and prevention of adverse health effects. Dust samples for lead content determination were collected from floors of classrooms of the six selected public and private elementary schools in Tarlac City. Instrumental analysis for lead content showed the presence of lead in all the dust samples with average lead levels in sampling sites ranging from 158.3 ug/ft2 to 287.8 ug/ft2 . The values did not vary significantly among the six schools investigated and were all found to exceed the maximum value (40 ug/ft2) set by the EPA. Thus, based on EPA standards, the study concludes that the level of lead in dust in the study sites presents a health hazard to schoolchildren. The high lead content of the dust samples is attributed mainly to vehicular emission particularly from motor vehicles that use leaded gasoline.","PeriodicalId":262661,"journal":{"name":"2010 International Conference on Environmental Engineering and Applications","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133396598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Technical evaluation of potential drawbacks in direct UASB treatment of raw domestic sewage 直接UASB处理原生活污水潜在缺点的技术评价

2010 International Conference on Environmental Engineering and Applications Pub Date : 2010-10-07 DOI: 10.1109/ICEEA.2010.5596152

S. Aiyuk, Philip Odonkor, N. Theko, A. V. van Haandel, W. Verstraete

{"title":"Technical evaluation of potential drawbacks in direct UASB treatment of raw domestic sewage","authors":"S. Aiyuk, Philip Odonkor, N. Theko, A. V. van Haandel, W. Verstraete","doi":"10.1109/ICEEA.2010.5596152","DOIUrl":"https://doi.org/10.1109/ICEEA.2010.5596152","url":null,"abstract":"The performance and stability of a domestic sewage treatment system consisting of an upflow anaerobic sludge blanket (UASB) reactor were assessed. This was to come up with a technical evaluation of using such a system to treat directly such wastewater containing high amounts of suspended solids (SS), in developing countries like Lesotho. Through time, the evolution of the sludge bed was monitored closely, in terms of accumulation of particulate matter and its general quality. The average total chemical oxygen demand (CODt) of the wastewater was 522 mgL−1, and the system could remove 80 % of the organic matter. The sludge production in the reactor system was high (up to 70 % of influent chemical oxygen demand (COD) found as suspended solid), necessitating repeated sludge discharges from the reactor, on average every 100 days. Considering the delicate balance of the methanogens in anaerobic reactors, perturbations of the microbiota arose following the sludge extractions, and these promoted reactor imbalance. This further brought about a decrease in reactor performance and hence of the general sustainability of the UASB process when treating domestic sewage. In addition, the system could not remove the macronutrients nitrogen and phosphorus. Additional treatment steps would be necessary to remove the suspended solids and nutrients, and thus to effectively treat such a wastewater.","PeriodicalId":262661,"journal":{"name":"2010 International Conference on Environmental Engineering and Applications","volume":"199 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133461870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Study of carbonaceous and nitrogenous pollutants in leachate of a sanitary landfill site 某卫生填埋场渗滤液中碳质、氮质污染物的研究

2010 International Conference on Environmental Engineering and Applications Pub Date : 2010-10-07 DOI: 10.1109/ICEEA.2010.5596151

Aik Heng Lee, H. Nikraz, Y. Hung

引用次数: 0

Process modeling for estimation of colloidal aluminium in alum treated water during defluoridation 除氟期间明矾处理水中胶体铝估算的过程建模

2010 International Conference on Environmental Engineering and Applications Pub Date : 2010-10-07 DOI: 10.1109/ICEEA.2010.5596100

Suja George, P. Pandit, A.B. Gupta

{"title":"Process modeling for estimation of colloidal aluminium in alum treated water during defluoridation","authors":"Suja George, P. Pandit, A.B. Gupta","doi":"10.1109/ICEEA.2010.5596100","DOIUrl":"https://doi.org/10.1109/ICEEA.2010.5596100","url":null,"abstract":"Fluoride contamination is present in most groundwater resources and aluminium (Al) based techniques are mostly adopted for defluoridation of water because of the high affinity between aluminium and fluorides. The presence of residual aluminium in treated drinking water has become a cause of worldwide concern and aluminium based coagulants have come under scrutiny with findings of neuro-toxicity when aluminium is ingested in different forms. This paper presents the theoretical model NALD-2 developed to study for interactions of fluoride and aluminium in the alum based Nalgonda Defluoridation Process and that can predict for extent of defluoridation as well as concentrations of dissolved and colloidal aluminium in the treated water with respect to changes in pH, alum dosage and initial fluoride concentrations. This model represents the defluoridation mechanism taking into account the charged behavior of the amphoteric aluminium hydroxide colloids, available charged site densities and fluoride complexation reactions. Colloidal aluminium concentration is a function of alum dosage and pH of the water. The NALD-2 model helps in predicting alum dosages for minimum residual aluminium in alum treated water, as the fluoride removal is dependent on the available charged sites on the aluminium hydroxide particles","PeriodicalId":262661,"journal":{"name":"2010 International Conference on Environmental Engineering and Applications","volume":"634 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123047747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Application of electromagnetic induction technique for soil salinity and sodicity appraisal 电磁感应技术在土壤盐碱度评价中的应用

2010 International Conference on Environmental Engineering and Applications Pub Date : 2010-10-07 DOI: 10.1109/ICEEA.2010.5596142

G. Ganjegunte, R. Braun

{"title":"Application of electromagnetic induction technique for soil salinity and sodicity appraisal","authors":"G. Ganjegunte, R. Braun","doi":"10.1109/ICEEA.2010.5596142","DOIUrl":"https://doi.org/10.1109/ICEEA.2010.5596142","url":null,"abstract":"Salinity is a major problem affecting the sustainability of agriculture and environment in the Rio Grande river basin in Texas, USA. An accurate data on the spatial distribution of salinity is necessary for developing effective salinity management practices. However, at present information is lacking on the amount and distribution of salts within the Rio Grande river basin. Manual methods of salinity assessment at high spatial resolution are labor intensive, time consuming and involve expensive laboratory analysis. Electromagnetic induction technique (EMI) can be a relatively low cost, non-invasive and rapid alternative for measuring and mapping soil salinity. This project evaluated utility, accuracy and factors affecting the accuracy of EMI technique to delineate salt affected areas within the Rio Grande river basin in the Far West Texas, USA. Results of this project indicated that the EMI technique provided accurate data on spatial distribution of salinity within a geographical location. Furthermore, accuracy of EMI data was influenced by factors such as amount of clay and soil moisture content at the time of EMI survey. Results also indicated that the EMI technique is rapid, cheaper, and provides accurate spatial data at a much higher resolution than the conventional manual method.","PeriodicalId":262661,"journal":{"name":"2010 International Conference on Environmental Engineering and Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131889085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Analysis and design of embedded controller based Electrical Power Generation unit from Domestic Waste 基于嵌入式控制器的生活垃圾发电装置的分析与设计

2010 International Conference on Environmental Engineering and Applications Pub Date : 2010-10-07 DOI: 10.1109/ICEEA.2010.5596095

V. Muthu Raman, A. Muthuvel, C. Narayan Koushik

引用次数: 1

Relative warps and Correlation Analysis based on Distances of the morphological shape of the shell of the golden apple snail Pomacea canaliculata from Iligan city, Philippines 菲律宾伊利甘市金苹果螺壳形态距离的相关翘曲及相关分析

2010 International Conference on Environmental Engineering and Applications Pub Date : 2010-10-07 DOI: 10.1109/ICEEA.2010.5596099

S. Tabugo, M. Torres, C. Demayo

引用次数: 9

Interactive relationships of Microcystis aeruginosa and three species of Chlorella under the condition of coexistence 铜绿微囊藻与三种小球藻共存条件下的相互作用关系

2010 International Conference on Environmental Engineering and Applications Pub Date : 2010-10-07 DOI: 10.1109/ICEEA.2010.5596136

Yu-Chuau Hong, Diqiu Zou, Q. Xiao, Zhiming Zhang, Hongying Hu

{"title":"Interactive relationships of Microcystis aeruginosa and three species of Chlorella under the condition of coexistence","authors":"Yu-Chuau Hong, Diqiu Zou, Q. Xiao, Zhiming Zhang, Hongying Hu","doi":"10.1109/ICEEA.2010.5596136","DOIUrl":"https://doi.org/10.1109/ICEEA.2010.5596136","url":null,"abstract":"The interactive relationships of toxic and bloom-forming Microcystis aeruginosa and three common green algae (including Chlorella pyrenoidosa, Chlorella vulgaris, Chlorella ellipsoidea) were investigated under the condition of coexisting cultivation. To inoculate the log-phase cells of C. pyrenoidosa and M. aeruginosa, the cocultivation results showed that M. aeruginosa under low initial densities could stimulate the growth of C. pyrenoidosa but its growth was inhibited; however, the growth of C. pyrenoidosa could be significantly inhibited while the growth of M. aeruginosa was pretty well with its initial density reaching up to 1×106 cells·mL−1. Stable-phase M. aeruginosa caused more apparent phenomenon on C. pyrenoidosa but lost the competitiveness itself. Similar phenomena were observed when M. aeruginosa was coexisted with C. vulgaris or C. ellipsoidea. These results provided evidence in support of algal relationship in waterbodies, pointed out that restriction of harmful algal bloom in a certain range of density or growth stage might be beneficial to restoration of water environment, and proposed that all the three chlorella species had competitive advantage to be used to protect against M. aeruginosa bloom.","PeriodicalId":262661,"journal":{"name":"2010 International Conference on Environmental Engineering and Applications","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115300176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Parity status and filarial infection in field-collected Armigeres kesseli ramalingam and Armigeres salbabatus coquillett from forested and urban areas in Malaysia 马来西亚森林地区和城市地区野外采集的沙爪阿蚊和沙爪阿蚊胎次状况和丝虫病感染

2010 International Conference on Environmental Engineering and Applications Pub Date : 2010-10-07 DOI: 10.1109/ICEEA.2010.5596138

I. M. Nurin-Zulkifli, C. Chen, H. Lee, K. Faezah, M. Sofian‐Azirun

引用次数: 2