'); //pp.document.writeln('


B-9, A-Block, Naraina Vihar, Ring Road, New Delhi-110028 (INDIA)
Phone: +91-11-45055500, 45055535, Fax: +91-11-25778876, E-mail: info@indianjournals.com
'); pp.document.writeln('


B-9, A-Block, Naraina Vihar, Ring Road, New Delhi-110028 (INDIA)
Phone: +91-11-45055500, 45055535, Fax: +91-11-25778876, E-mail: info@indianjournals.com
'); pp.document.writeln(document.getElementById(print_area).innerHTML); pp.document.writeln(''); } function checkValidKeyForUserName(obj, event) { // Disable invalid keypresses (except a-z, A-Z, 0-9, _). if (!((event.keyCode >= 48 && event.keyCode <= 57) || (event.keyCode >= 65 && event.keyCode <= 90) || event.keyCode == 95 || (event.keyCode >= 97 && event.keyCode <= 122))) { event.returnValue = false; } } function checkValidKeyForEmailAddress(obj, event) { //alert(event.keyCode); // Convert upper case letters(A-Z) to lower case(a-z). if (event.keyCode >= 65 && event.keyCode <= 90) { event.keyCode += 32; } if (!((event.keyCode >= 48 && event.keyCode <= 57) || (event.keyCode >= 97 && event.keyCode <= 122) || event.keyCode == 46 || event.keyCode == 45 || event.keyCode == 64 || event.keyCode == 95)) event.returnValue = false; } function checkValidKeyForContactNumber(obj, event) { if (!(event.keyCode >= 48 && event.keyCode <= 57)) { event.returnValue = false; } } // function updateValues(obj) // { // //document.getElementById('UCOnlinesubmission_lbljournalName').innerHTML=obj; // obj='ijor.aspx?target=ijor:'+obj+'&type=onlinesubmission'; // //window.navigate(obj); // window.location.href=obj; // //alert(obj); // //alert('UCOnlinesubmission_lbtnos'); // //__doPostBack('UCOnlinesubmission_lbtnos',''); // } function checkShortcutKey(obj, event) { srcElementID = event.srcElement.id; // Handle pressing of enter key. if (event.keyCode == 13 && srcElementID != "TBjdirPublisherAddress" && srcElementID != "TBjdirEditorAddress" && srcElementID != "TBsuscriptionNotes") { if (srcElementID == "DDLsearchCatagory" || srcElementID == "TBsearchText") { post(document.getElementById("quickSearch")); } else if (srcElementID == "TBuserName" || srcElementID == "TBpassword") { post(document.getElementById("BTNlogIn")); } else if (srcElementID == "TBuserNameOnHP" || srcElementID == "TBpasswordOnHP") { post(document.getElementById("BTNlogInOnHP")); } else if (srcElementID == "TBforUsersUserName" || srcElementID == "TBforUsersPassword") { post(document.getElementById("BTNforUsersLogIn")); } else if (srcElementID == "TBforToccancelUsersUserName" || srcElementID == "TBforToccancelUsersPassword") { post(document.getElementById("BTNfortocccancelUsersLogIn")); } else if (srcElementID == "TBforAssociatesUserName" || srcElementID == "TBforAssociatesPassword") { post(document.getElementById("BTNforAssociatesLogIn")); } else if (srcElementID == "TBforLibrariansUserName" || srcElementID == "TBforLibrariansPassword") { post(document.getElementById("BTNforLibrariansLogIn")); } else if (srcElementID == "TBchangePasswordOldPassword" || srcElementID == "TBchangePasswordNewPassword" || srcElementID == "TBchangePasswordConfirmPassword") { post(document.getElementById("BTNchangePasswordUpdatePassword")); } else { event.returnValue = false; } } // Disable copying from web page using ctrl+c and ctrl+insert shortcuts except from the text boxes. else if (event.ctrlKey == true && (event.keyCode == 67 || event.keyCode == 45)) { if (srcElementID.search("TB") == -1) { event.returnValue = false; } } // Disable pasting on all the user name and contact number text boxes using ctrl+v and shift+insert shortcuts. else if ((event.ctrlKey == true && event.keyCode == 86) || (event.shiftKey == true && event.keyCode == 45)) { if (srcElementID == "TBuserName" || srcElementID == "TBuserNameOnHP" || srcElementID == "TBregisterUserName" || srcElementID == "TBregisterContactNumber") { event.returnValue = false; } } } function emailidupd(username, pwd) { var response = window.showModalDialog("emailidupd.aspx?u=" + username + "&p=" + pwd, "", "dialogWidth:500px,dialogHeight:200px,dialogTop:200px,dialogLeft:300px,toolbars:no,scrollbars:no,status=0,directories=0,location=0,resizable:no"); return response; } function post(obj) { objID = obj.id; if (objID == "BTNlogIn") { //Changed by Shyam 20-Feb-2014 //Revome Passowrd validation //if (document.getElementById("TBuserName").value != "" & document.getElementById("TBpassword").value != "") { // if (document.getElementById("TBuserName").value.indexOf("@") == -1) { // var obj = emailidupd(document.getElementById("TBuserName").value, document.getElementById("TBpassword").value); if (document.getElementById("TBuserName").value != "") { if (document.getElementById("TBuserName").value.indexOf("@") == -1) { var obj = emailidupd(document.getElementById("TBuserName").value); //alert(obj); if (obj != undefined && obj == true) { document.getElementById("TBuserName").value = ''; document.getElementById("TBpassword").value = ''; alert("Please use valid email address to login. Please try again."); //__doPostBack('LBTNlogIn',''); } } else { //document.getElementById("chkloghometop").checked=true; __doPostBack('LBTNlogIn', ''); } } } else if (objID == "BTNlogInOnHP") { //Changed by Shyam 07-Feb-2014 //Revome Passowrd validation //if (document.getElementById("TBuserNameOnHP").value != "" & document.getElementById("TBpasswordOnHP").value != "") { // if (document.getElementById("TBuserNameOnHP").value.indexOf("@") == -1) { // var obj = emailidupd(document.getElementById("TBuserNameOnHP").value, document.getElementById("TBpasswordOnHP").value); if (document.getElementById("TBuserNameOnHP").value != "") { if (document.getElementById("TBuserNameOnHP").value.indexOf("@") == -1) { var obj = emailidupd(document.getElementById("TBuserNameOnHP").value); //alert(obj); if (obj != undefined && obj == true) { document.getElementById("TBuserNameOnHP").value = ''; document.getElementById("TBpasswordOnHP").value = ''; alert("Please use valid email address to login. Please try again."); //__doPostBack('LBTNlogInOnHP',''); } } else { //document.getElementById("chkloghome").checked=true; __doPostBack('LBTNlogInOnHP', ''); } } } else if (objID == "quickSearch") { var searchString = document.getElementById("TBsearchText").value; var obj = /^(\s*)([\W\w]*)(\b\s*$)/; if (obj.test(searchString)) { searchString = searchString.replace(obj, '$2'); } var obj = / +/g; searchString = searchString.replace(obj, " "); if (searchString == " ") { searchString = ""; } if (searchString != "") { window.navigate("?target=search&type=" + document.getElementById("DDLsearchCatagory").value + "&string=" + searchString); } } else if (objID == "BTNforUsersLogIn") { if (document.getElementById("TBforUsersUserName").value != "" & document.getElementById("TBforUsersPassword").value != "") { __doPostBack('LBTNforUsersLogIn', ''); } } else if (objID == "BTNfortocccancelUsersLogIn") { if (document.getElementById("TBforToccancelUsersUserName").value != "" & document.getElementById("TBforToccancelUsersPassword").value != "") { __doPostBack('LBTNfortoccancelUsersLogIn', ''); } } else if (objID == "BTNforAssociatesLogIn") { if (document.getElementById("TBforAssociatesUserName").value != "" & document.getElementById("TBforAssociatesPassword").value != "") { __doPostBack('LBTNforAssociatesLogIn', ''); } } else if (objID == "BTNforLibrariansLogIn") { if (document.getElementById("TBforLibrariansUserName").value != "" & document.getElementById("TBforLibrariansPassword").value != "") { __doPostBack('LBTNforLibrariansLogIn', ''); } } else if (objID == "BTNchangePasswordUpdatePassword") { if (document.getElementById("TBchangePasswordOldPassword").value != "" & document.getElementById("TBchangePasswordNewPassword").value != "" & document.getElementById("TBchangePasswordConfirmPassword").value != "") { __doPostBack('LBTNchangePasswordUpdatePassword', ''); } } } function GetDate(CtrlName) { /**************************************************** Use Javascript method (window.open) to PopUp a new window which contain a Calendar Control. In the meantime, we'll pass the Parent Form Name and Request Control Name in the QueryString! *****************************************************/ //use showModalDialog() ChildWindow = window.open('Calendar1.aspx?FormName=' + document.forms[0].name + '&CtrlName=' + CtrlName, "PopUpCalendar", "width=270,height=300,top=200,left=200,toolbars=no,scrollbars=no,status=no,resizable=no"); //ChildWindow.focus(); } // function GetemailidupdWindow() // { //use showModalDialog() // ChildWindow = window.showModalDialog('ijor.aspx?target=emailidupd', "Update Email ID", "dialogwidth=270,dialogheight=300,dialogtop=200,dialogleft=200,toolbars=no,scrollbars=no,status=no,resizable=no"); // ChildWindow.focus(); // } function sendMsg() { event.returnValue = "Logoff"; window.location.href = "http://deepak/ijor1/sessionout.aspx"; }
(142.171.178.55)
[ij] [ij] [ij] 
Email id
 

International Journal of Agriculture, Environment and Biotechnology
Year : 2013, Volume : 6, Issue : 3
First page : ( 355) Last page : ( 362)
Print ISSN : 0974-1712. Online ISSN : 2230-732X.
Article DOI : 10.5958/j.2230-732X.6.3.003

Heavy Metals Concentration at Different Tannery Wastewater Canal of Chittagong City in Bangladesh

Islam S., Islam F.*, Bakar M.A., Das S., Bhuiyan H.R.

Bangladesh Council of Scientific and Industrial Research (BCSIR) Laboratories, Chittagong, Bangladesh

*Email: faridacct@yahoo.com

Online published on 22 October, 2013.

Abstract

Industrialization and urbanization grow up the development of any country. Chittagong, the second largest city of Bangladesh, is suffering a great deal for water pollution problem. Various types of compound contaminated with heavy metals or heavy metals compound are conventionally used in different industry. Wastage from the industries is finally discharged into different surface water body without treatment creating pollution. Our investigation was carried out to evaluate the status of heavy metal in the different canal of Chittagong City. Concentration of Cu, Mn, Zn, Pb, Ni, Co, Ag Fe, Cd, Al and Ag were determined by Atomic Absorption Spectrophotometer (AAS). In all canals Pb contents were higher than the standard limit of Environment Conservation Rules 1997. Pb concentration of Hamzerbagh canal was the highest (8.03 mg/ml) of all and second highest was Mirzapol canal i.e. 7.777 mg/l. Cr content that found to very much higher in the two canals near from Kulgoan (Tannery Bottal) area were 23.73 mg/L and 10.45 mg/L. Fe concentration of sample, collected from Muradpur canal, Hamzerbag canal and Mirzarpol canal found higher than the standard limit were 7.95, 4.94 and 4.41 respectively. High concentration of Pb, Cr and Fe were found also higher than the standard limit indicating imperiled state of canal water of Chittagong City.

Highlights

  • The samples were collected from nine tannery canals

  • Twelve heavy metals were determined from tannery wastewater

  • Chromium, Lead and Iron was the highest concentration than other heavy metals

Top

Keywords

Wastes, heavy metals, waste water and Atomic Absorption Spectrophotometer (AAS).

Top

  
║ Site map ║ Privacy Policy ║ Copyright ║ Terms & Conditions ║ Page Rank Tool ║
803,911,270 visitor(s) since 30th May, 2005.
All rights reserved. Site designed and maintained by DIVA ENTERPRISES PVT. LTD..
Note: Please use Internet Explorer (6.0 or above). Some functionalities may not work in other browsers.