发布求助
文献互助 智能选刊 最新文献

Indian journal of environmental health最新文献

筛选
英文 中文
Design of Upelow Anaerobic Sludge Blanket reactor for treatment of organic wastewaters. Upelow厌氧污泥毯式反应器处理有机废水的设计。
Indian journal of environmental health Pub Date : 2003-04-01
M M Ghangrekar, U J Kahalekar, S V Takalkar
{"title":"Design of Upelow Anaerobic Sludge Blanket reactor for treatment of organic wastewaters.","authors":"M M Ghangrekar,&nbsp;U J Kahalekar,&nbsp;S V Takalkar","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The Upflow Anaerobic Sludge Blanket (UASB) Reactor is widely applied anaerobic wastewater treatment method all over the world. Uniform distribution of wastewater at reactor bottom is necessary to establish proper contact between sludge and wastewater. In addition, proper functioning of Gas-Liquid-Solid (GLS) separator is crucial to ensure maximum sludge retention in the reactor and to achieve maximum COD removal rate in the reactor. Hence, proper design of reactor is necessary for appropriate functioning of various components for a given wastewater flow rate and COD concentration. The design procedure for UASB reactor taking due consideration to the GLS design and design of inlet arrangement is discussed in this paper for various wastewater strength and flow rates. A software is developed to make economical design of UASB reactor for different type of wastewater by adopting maximum loading conditions, based on literature recommendations, and at the same time to satisfy all design recommendation, as far as possible.</p>","PeriodicalId":84892,"journal":{"name":"Indian journal of environmental health","volume":"45 2","pages":"121-32"},"PeriodicalIF":0.0,"publicationDate":"2003-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40864238","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
Arsenic reduction from aqueous environment by water lettuce (Pistia stratiotes L.). 水莴苣(Pistia stratiotes L.)对水环境砷的还原作用。
Indian journal of environmental health Pub Date : 2003-04-01
Arindam Basu, Sunil Kumar, Somnath Mukherjee
{"title":"Arsenic reduction from aqueous environment by water lettuce (Pistia stratiotes L.).","authors":"Arindam Basu,&nbsp;Sunil Kumar,&nbsp;Somnath Mukherjee","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Arsenate uptake by aquatic plant water lettuce (Pistia stratiotes L.) was studied in the laboratory condition to investigate a low cost natural aquatic treatment system for pollutant removal. The plants were harvested from a local pollution free pond in young condition and hydroponically cultured in the laboratory. Bioaccumulation was noticed to be both concentration and duration dependent. The results show that the plant could effectively abosrb arsenic between a range of 0.25 to 5.0 mg/l to the extent of 82.0 to 22.8% for a biomass of 20g/l at pH 7.0 after 144 hours. The results were also plotted in Langmuir and Freundlich isotherms and the data were well fitted. The sorption capacity was evaluated as 1.43 mg/g for Langmuir isotherm and 1.01 mg/g for Freundlich isotherm. The removal efficiency was, however, noted to be maximum (87.5%) at pH 6.5. The effect of biomass quantity has also been investigated along with some metabolic parameters.</p>","PeriodicalId":84892,"journal":{"name":"Indian journal of environmental health","volume":"45 2","pages":"143-50"},"PeriodicalIF":0.0,"publicationDate":"2003-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40864241","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
Disappearence of some toxic elements in the surface water of Hussainsagar Lake following Ganesh-idol immersion. 甘尼什神像浸泡后，胡森萨加尔湖地表水中一些有毒元素消失。
Indian journal of environmental health Pub Date : 2003-04-01
M Vikram Reddy, A Vijay Kumar
{"title":"Disappearence of some toxic elements in the surface water of Hussainsagar Lake following Ganesh-idol immersion.","authors":"M Vikram Reddy,&nbsp;A Vijay Kumar","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":84892,"journal":{"name":"Indian journal of environmental health","volume":"45 2","pages":"161-2"},"PeriodicalIF":0.0,"publicationDate":"2003-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40864244","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
Sewage treatment by anaerobic hybrid reactor. 厌氧混合反应器处理污水。
Indian journal of environmental health Pub Date : 2003-04-01
Abid Ali Khan, M M Ashhar, Asif A Siddiqui, I H Farooqi
{"title":"Sewage treatment by anaerobic hybrid reactor.","authors":"Abid Ali Khan,&nbsp;M M Ashhar,&nbsp;Asif A Siddiqui,&nbsp;I H Farooqi","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Attempts were made to utilize anaerobic hybrid reactor for sewage treatment. The reactor was seeded with digested sewage sludge and a HRT of 24 hrs. was kept in the start up. The HRT was subsequently decreased to 20, 16, 12, 8 and 4 hrs. A maximum COD removal efficiency of 74% was achieved at minimum HRT. The pH, alkalinity, solids and VFA of the effluent were within the permissible limits.</p>","PeriodicalId":84892,"journal":{"name":"Indian journal of environmental health","volume":"45 2","pages":"97-100"},"PeriodicalIF":0.0,"publicationDate":"2003-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40864381","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
Treatment of textile dyeing wastewater using UV/solar photofenton oxidation processes. 紫外/太阳能光fenton氧化法处理纺织印染废水。
Indian journal of environmental health Pub Date : 2003-04-01
G Sarayu, S Kanmani
{"title":"Treatment of textile dyeing wastewater using UV/solar photofenton oxidation processes.","authors":"G Sarayu,&nbsp;S Kanmani","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Colour removal of effluent from textile dyeing and finishing industry is becoming important because of aesthetic as well as environmental concerns. Conventional treatment methods have several limitations. Hence emerging technologies like advanced oxidation processes which were based on generation of hydroxyl free radicals (OH) were investigated. In the present work, photofenton oxidation process was used to treat textile dyeing wastewater and the study was carried out at different Fenton molar ratio's (H2O2/Fe2+) like 25:1, 50:1, 75:1, 100:1. It was found that maximum decolourisation occurred at a fenton molar ration of 50:1 and pH 3. A maximum colour removal of 97% was achieved after a contact time of 30 minutes and 70% COD reduction was observed after a contact time of 60 minutes in UV photofenton oxidation process. Whereas 80% colour removal and 50-55% COD reduction was observed after a contact time of 2 hrs in solar photofenton oxidation process.</p>","PeriodicalId":84892,"journal":{"name":"Indian journal of environmental health","volume":"45 2","pages":"113-20"},"PeriodicalIF":0.0,"publicationDate":"2003-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40864384","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
Performance evaluation of a full-scale coke oven wastewater treatment plant in an integrated steel plant. 某综合钢厂焦炉污水处理装置的性能评价。
Indian journal of environmental health Pub Date : 2003-01-01
M Suresh Kumar, A N Vaidya, N Shivaraman, A S Bal
{"title":"Performance evaluation of a full-scale coke oven wastewater treatment plant in an integrated steel plant.","authors":"M Suresh Kumar,&nbsp;A N Vaidya,&nbsp;N Shivaraman,&nbsp;A S Bal","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Wastewater generated during coke-oven gas cleaning operations in the integrated steel plant contains phenol, cyanide, thiocyanate, and also oil and grease. Although the activated sludge process is widely practiced for biological treatment of coke-oven wastewater, it was observed during the evaluation of performance of full scale coke-oven wastewater treatment plant that oil contamination and poor sludge settleability had resulted in poor maintenance of the activated sludge process. Keeping these aspects in view, treatability studies were conducted and an alternative treatment process is proposed. With these corrective measures the coke-oven wastewater treatment plant will give desired performance. In this paper we present results of the performance evaluation, data on treatability studies and alternative treatment process scheme.</p>","PeriodicalId":84892,"journal":{"name":"Indian journal of environmental health","volume":"45 1","pages":"29-38"},"PeriodicalIF":0.0,"publicationDate":"2003-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24162602","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
Cathodic protection system for underground M.S. pipeline of watersupply project. 供水工程地下ms管道阴极保护系统。
Indian journal of environmental health Pub Date : 2003-01-01
V D Patil, P S Phulari
{"title":"Cathodic protection system for underground M.S. pipeline of watersupply project.","authors":"V D Patil,&nbsp;P S Phulari","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Corrosion of steel embedded in soil can generally be explained in terms of long cell action arising from differential aeration. The significant factors to promote corrosion are soil potential, Resistivity and draining characteristics. As the corrosive nature of soil is not fixed absolute value, the said study can be analyzed by adopting the following methodology. i) Study of state of soil at different location. ii) Nature of corrosion under consideration With above methodology an attempt can be made to achieve the following objective to, i) Assess the extent of corrosive tendencies of soil along the pipeline. ii) Co-relate potential and resistivity with corrosive parameters of soil and, iii) Suggest the appropriate remedial means for protecting it from corrosion. i.e. Galvanic activity.</p>","PeriodicalId":84892,"journal":{"name":"Indian journal of environmental health","volume":"45 1","pages":"11-4"},"PeriodicalIF":0.0,"publicationDate":"2003-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24162701","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
Spectrophotometric studies on the investigation of chromium in environmental samples. 分光光度法测定环境样品中铬的研究。
Indian journal of environmental health Pub Date : 2003-01-01
M B Melwanki, Jaldappa Seetharamappa
{"title":"Spectrophotometric studies on the investigation of chromium in environmental samples.","authors":"M B Melwanki,&nbsp;Jaldappa Seetharamappa","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Isothipendyl hydrochloride is proposed as a sensitive and selective reagent for the rapid spectrophotometric determination of chromium(VI). The reagent instantaneously gives a red coloured species on reaction with chromium(VI) in phosphoric acid medium which exhibits maximum absorbance at 510 nm with Sandell's sensitivity of 2.28 ng cm(-2). Beer's law is valid over the concentraction range of 0.1-1.9 mg/l with an optimum concentration range of 0.2-1.7 mg/l. The method has been successfully applied to the analysis of chromium in environmental samples.</p>","PeriodicalId":84892,"journal":{"name":"Indian journal of environmental health","volume":"45 1","pages":"25-8"},"PeriodicalIF":0.0,"publicationDate":"2003-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24162601","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
Adsorption studies of chromium (VI) on activated carbon derived from Sorghum vulgare (dried stem of Jowar). 高粱干茎活性炭吸附铬(VI)的研究。
Indian journal of environmental health Pub Date : 2003-01-01
Shashikant R Mise, V S Rajamanya
{"title":"Adsorption studies of chromium (VI) on activated carbon derived from Sorghum vulgare (dried stem of Jowar).","authors":"Shashikant R Mise,&nbsp;V S Rajamanya","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The present work deals with the adsorption studies of chromium (VI) on activated carbon derived from Sorghum vulgare (dried stem of Jowar). The activated carbons were prepared by physical and chemical activation using H2SO4, H3PO4 activating agents of different imprignation Ratio (I.R.). The effect of adsorption of Cr (VI) on pH, particle size concentration, contact time and dosage have been studied. Removal of chromium (VI) attained in equilibrium maxium of 50 minutes and slightly decreases with increasing I.R. Adsorption obeys first order rate equation and Webber and Morris equation for pore diffusion. Adsorption increases with decrease in pH, is maximum at pH 2. Increase in imprignation ratio also increases surface area of Sorghum vulgare carbons.</p>","PeriodicalId":84892,"journal":{"name":"Indian journal of environmental health","volume":"45 1","pages":"49-58"},"PeriodicalIF":0.0,"publicationDate":"2003-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24162604","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
Major ion correlation in groundwater of Kancheepuram Region, South India. 印度南部Kancheepuram地区地下水的主要离子相关性。
Indian journal of environmental health Pub Date : 2003-01-01
N Rajmohan, L Elango, S Ramachandran, M Natarajan
{"title":"Major ion correlation in groundwater of Kancheepuram Region, South India.","authors":"N Rajmohan,&nbsp;L Elango,&nbsp;S Ramachandran,&nbsp;M Natarajan","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Groundwater samples were collected from both dugwells and borewells in an intensively irrigated area of Kancheepuram Taluk, Tamil Nadu. pH, EC and TDS of groundwater samples were measured in the site. The collected samples were analysed in the laboratory for Ca, Mg, Na, K, Cl, HCO3, CO3, SO4, NO3, P-PO4 and Si-SiO2. The results are used for inter elemental correlation analysis which indicates that most of the elements having good correlation. Piper Trilinear diagram is used to find out the hydrochemical type of groundwater which shows that most of them are CaHCO3 and the remaining are CaMgCl type. Hydrochemical characteristics of groundwater indicate that silicate weathering reaction is a probable source for high concentration of major ions.</p>","PeriodicalId":84892,"journal":{"name":"Indian journal of environmental health","volume":"45 1","pages":"5-10"},"PeriodicalIF":0.0,"publicationDate":"2003-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24162700","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信