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Faculty of Engineering
Document Details
Document Type
:
Article In Journal
Document Title
:
Nitrate Removal from Drinking Water Using Anoxic Packed Reactor
إزالة النيترات من مياه الشرب باستخدام مفاعل بيولوجي
Subject
:
Civil Engineering
Document Language
:
English
Abstract
:
An anoxic upflow packed-bed reactor was operated to denitrify water having a nitrate-nitrogen concentration of 120 mg/I. A methanol to nitrate ratio of 0.55, i.e., less than the stoichiometric requirements was utilized throughout the present investigation. The effects of hydraulic retention time, oxygen tension, and nutrient concentrations on the performance of the process were investigated. The minimum hydraulic retention time needed to meet the nitrate standard in drinking water was 6 hours. A higher hydraulic retention time of 12 hours was needed to meet the nitrate standard of 1 mg/l as nitrogen. No detectable methanol concentration was found in the effluent of the reactor when the system was operated at a hydraulic retention greater than'or equal to 9 hours. The results of the study indicated that once denitrification was established, the dissolved oxygen concentrations in the feed water did not affect the performance of the process and effective denitrification occurred at a dissolved oxygen concentration as high as 8 mg/l. Thus, oxygen tension was not found critical for the process. The phosphorus concentration in the feed did not significantly affect the efficiency of the system. High denitrification efficiencies were achieved at phosphorus concentrations in the feed as low as 0.05 mg/I. Based on the findings of this research and other evidence, a biochemical model for the denitrification process is proposed.
ISSN
:
1319-1047
Journal Name
:
Engineering Sciences Journal
Volume
:
6
Issue Number
:
1
Publishing Year
:
1414 AH
1994 AD
Article Type
:
Article
Added Date
:
Tuesday, January 5, 2010
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
زياد حمزة أبوغراره
ABU-GHARARAH, ZIAD HAMZAH
Researcher
Doctorate
Files
File Name
Type
Description
24681.pdf
pdf
Nitrate Removal from Drinking Water Using Anoxic Packed Reactor
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