2010 International Conference on Environmental Engineering and Applications最新文献_第7页

The effects of climate change on tourism 气候变化对旅游业的影响

2010 International Conference on Environmental Engineering and Applications Pub Date : 2010-10-07 DOI: 10.1109/ICEEA.2010.5596156

Soheila khoshnevis Yazdi, B. Shakouri

引用次数: 5

Hydrodynamics and mass transfer coefficient in a split-cylindrical airlift bioreactor containing oil-in-water micro-emulsions 含水包油微乳分离式气升生物反应器的流体力学和传质系数

2010 International Conference on Environmental Engineering and Applications Pub Date : 2010-10-07 DOI: 10.1109/ICEEA.2010.5596124

M. Moraveji, B. Sajjadi, R. Davarnejad

引用次数: 0

Nitrogen removal from shrimp farm wastewater by aerobic and anoxic recirculation systems 好氧和缺氧循环系统对养虾场废水中氮的去除

2010 International Conference on Environmental Engineering and Applications Pub Date : 2010-10-07 DOI: 10.1109/ICEEA.2010.5596083

P. Chanakul, S. Leungprasert

{"title":"Nitrogen removal from shrimp farm wastewater by aerobic and anoxic recirculation systems","authors":"P. Chanakul, S. Leungprasert","doi":"10.1109/ICEEA.2010.5596083","DOIUrl":"https://doi.org/10.1109/ICEEA.2010.5596083","url":null,"abstract":"Although wastewater from shrimp culture production contains high amount of ammonia nitrogen, normally toxic to shrimps, it is required to be reused because of other available substances in this wastewater. With this reason, the ammonia nitrogen should be removed before reusing this wastewater until its amount less than the toxic level. The objective of this research was to find the removal efficiency of ammonia nitrogen by aerobic and anoxic recirculation systems. The experiments were conducted at shrimp culture production farm located at Chachoengsao Province in Thailand. The shrimp production wastewater contained the ammonia nitrogen of 13.14+3.54 mg/L was passed through the designed reactors with sizing of 6 L. Air requirement for nitrification was added to the reactor at 2.5 l/min for 10 days to complete the nitrification process. In this experiment, it was found that ammonia nitrogen was converted to nitrate about 98%. Compare to the control group, ammonia nitrogen was converted to nitrate nitrogen with 26%. The results also showed that nitrate was converted to nitrogen gas and total nitrogen was removed with 5% and 84% for control and treatment group, respectively. For the long period operation, nitrate was consistently remained in the effluent with the concentration below 0.38 mg-N/l. Also, the rate nitrogen gas produced was approximately 68 ml/m3/day. The C/N ratio for the anoxic period was approximately 0.1 g of TOC/g of nitrate nitrogen. For the aerobic system, the percent survival of shrimp under control and treatment group experiments was 34% and 54%, respectively while for the recirculation system, the percent survival was decreased to 26% and 49% for control and treatment group, respectively. This finding showed that the recirculation of water after the aerobic and anoxic systems slightly affected the shrimp survival but the shrimp were significantly affected for control group (p<0.05).","PeriodicalId":262661,"journal":{"name":"2010 International Conference on Environmental Engineering and Applications","volume":"29 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":"122551803","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

A comparative analysis of the legal status of noise pollution in Iran and other countries 伊朗与其他国家噪声污染法律状况的比较分析

2010 International Conference on Environmental Engineering and Applications Pub Date : 2010-10-07 DOI: 10.1109/ICEEA.2010.5596125

Noushin Ahanrobay, Pedram Pourshakibaii, M. Mostofi

引用次数: 1

Performance of constructed wetlands for the treatment of high strength organic effluents in northeastern Thailand 泰国东北部人工湿地处理高浓度有机废水的性能研究

2010 International Conference on Environmental Engineering and Applications Pub Date : 2010-10-07 DOI: 10.1109/ICEEA.2010.5596139

N. Chuersuwan, P. Suwanvaree, S. Chuersuwan

{"title":"Performance of constructed wetlands for the treatment of high strength organic effluents in northeastern Thailand","authors":"N. Chuersuwan, P. Suwanvaree, S. Chuersuwan","doi":"10.1109/ICEEA.2010.5596139","DOIUrl":"https://doi.org/10.1109/ICEEA.2010.5596139","url":null,"abstract":"The objective of present study was to evaluate the removal efficiency of high strength organic wastewater using experiment scale of constructed wetlands by comparing the free water surface flow (FWS) and subsurface flow (SF) systems. The emergent plant employed was Cyperus sp. The average removal efficiencies for both systems were 57.8–61.4%, 79.9–86.8%, 88.6–92.0%, 46.9–58.1%, and 79.9–91.2% for BOD<inf>5</inf>, COD, TKN, NO−<inf>3</inf>-N and TP, respectively. High removal efficiencies for both wetland systems were TKN and TP whereas NO<inf>3</inf>-N removals were lower than other parameters. Mean removal efficiencies indicated that the SF systems were higher than the FWS constructed wetlands. Based on the t-test analysis, the average removal efficiencies of COD, TKN and TP for SF were significantly higher than FWS. In addition, relationships between BOD<inf>5</inf> removals and initial BOD<inf>5</inf> concentrations indicated a fairly significant linear relationship for the SF systems (R2 = 0.59) and the FWS (R2 = 0.54). Furthermore, COD removal were significantly influent by inflow COD concentrations as indicated by a strong significant linear relationship for SF (R2 = 0.89) and FWS systems (R2 = 0.90).","PeriodicalId":262661,"journal":{"name":"2010 International Conference on Environmental Engineering and Applications","volume":"121 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":"115226319","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

Acid pretreated bagasse as a suitable biosorbent for direct red 81 removal 酸预处理甘蔗渣作为直接去除红81的合适生物吸附剂

2010 International Conference on Environmental Engineering and Applications Pub Date : 2010-10-07 DOI: 10.1109/ICEEA.2010.5596115

A. Aly, A. Said, A.A. Abd El-Hafez, M. Goda, V. Helmey

引用次数: 1

Radioactive dispersion model for Tehran research reactor and radioisotope laboratory stacks 德黑兰研究堆和放射性同位素实验室堆堆的放射性弥散模型

2010 International Conference on Environmental Engineering and Applications Pub Date : 2010-10-07 DOI: 10.1109/ICEEA.2010.5596133

N. Sadeghi, H. Sajadi, Ramin Salartash

引用次数: 2

Essentiality of model design for using of wastewater in agriculture for major cities 大城市农业废水利用模式设计的必要性

2010 International Conference on Environmental Engineering and Applications Pub Date : 2010-10-07 DOI: 10.1109/ICEEA.2010.5596146

P. Najafi

{"title":"Essentiality of model design for using of wastewater in agriculture for major cities","authors":"P. Najafi","doi":"10.1109/ICEEA.2010.5596146","DOIUrl":"https://doi.org/10.1109/ICEEA.2010.5596146","url":null,"abstract":"Because of shortage of fresh water resources and poor quality soils for agriculture, the reuse of marginal quality water is necessary. These sources include domestic, municipal and industrial wastewater, leachate from urban and industrial waste, surface runoff from precipitation in urban and industrial areas, and drain water from parks and agricultural land. Because of urban expansion, population density and expansion of agricultural and industrial area in developing countries, the volume of marginal quality water is increasing. Uncontrolled reuses of these resources cause environmental problems. The best way of disposal wastewater and drain water, reuse in agricultural and landscapes when it's doing with consideration to environmental and healthy impact, crops quality and plants sensitivity in long term. At the present time, there are many different standards for wastewater reuse. But these are inflexible for varying natural and artificial environment condition. Therefore designing models with flexibility for various conditions is necessary. In this research, the main input and output factors which can be used for designing a regional model of low quality water reuse in irrigation was presented.","PeriodicalId":262661,"journal":{"name":"2010 International Conference on Environmental Engineering and Applications","volume":"4 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":"126879730","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

Release rates of phosphate from coated fertilizer through nano CaCO3-wax mixtures 通过纳米碳酸钙-蜡混合物从包膜肥料中释放磷酸盐的速率

2010 International Conference on Environmental Engineering and Applications Pub Date : 2010-10-07 DOI: 10.1109/ICEEA.2010.5596089

W. Fernando, N. Ahmad, A. Ahmad

引用次数: 3

Hazard identification and accident analysis on city gate station in natural gas industry 天然气工业城门站危害识别与事故分析

2010 International Conference on Environmental Engineering and Applications Pub Date : 2010-10-07 DOI: 10.1109/ICEEA.2010.5596080

M. Nikbakht, Ali Sayyah, N. Zulkifli

引用次数: 4