MARC details
| 000 -LEADER |
|---|
| fixed length control field |
02812nam a2200349Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
|---|
| control field |
MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
|---|
| control field |
20250625160156.0 |
| 040 ## - CATALOGING SOURCE |
|---|
| Transcribing agency |
CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) |
|---|
| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) |
B-16675 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
|---|
| fixed length control field |
250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT |
|---|
| Title |
Using Oxidation-Reduction Potential (ORP)and pH Value for Process Control of Shortcut Nitrification-Denitrification |
| 490 0# - SERIES STATEMENT |
|---|
| Volume/sequential designation |
Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering, 38(12), p.2933-2942, 2003 |
| 520 3# - SUMMARY, ETC. |
|---|
| Summary, etc. |
A new low cost technology for simultaneous carbon-nitrogen removal from soybean wastewater has been developed in this study. The technology is performed through shortcut nitrification-denitrification. The process operated under real-time control of aeration and mixing time. The shortcut nitrification-denitrification in sequencing batch reactor (SBR)was achieved efficiently and steadily by controlling temperature (28 ± 0.5°C)and using real-time control strategies. This enabled the prevention of nitrite oxidation, leading to lower operational costs. The feasibility of oxidation-reduction potential (ORP)and pH value as control parameter for shortcut nitrification-denitrification process was also investigated. Results showed that the average removal efficiency of ammonium was more than 95 percent, and nitrosation rate (NO2 -N/NOx --N)was reached to 96 percent. At the same time, the variation of oxidation-reduction potential (ORP)and pH value was well related to organic matter degradation and ammonium oxidation in SBR. So that judgment on the ending of nitrification and denitrification can be based on the inflection point on the varied curve of ORP and pHthroughout each SBR processing cycle, and thus reducing aeration and mixing time for saving energy source. The method saves organic energy up to 40 percent of chemical oxygen demand (COD)in denitrification process, which should reduce the need for an extra external source of organic carbon. Shorter hydraulic retention time should allow the volume of the reactors to diminish, and thus diminish investment costs. Lower oxygen demand of about 25 percent gives lower exploitation costs. |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
CARBON |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
CHEMICAL OXYGEN DEMAND |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
CHEMICAL REACTORS |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
DENITRIFICATION |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
MIXING |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
NITRIFICATION |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
NITROGEN |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
OXIDATION |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
PH EFFECTS |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
PROCESS CONTROL |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
REAL TIME SYSTEMS |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
REDUCTION |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Gao, D.-W. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Peng, Y.-Z. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Liang, H. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Wang, P. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS |
|---|
| Uniform Resource Identifier |
<a href="https://drive.google.com/file/d/144SLuo6H15ztRuHYiGPHSrLIHfW1ylEY/view?usp=drivesdk">https://drive.google.com/file/d/144SLuo6H15ztRuHYiGPHSrLIHfW1ylEY/view?usp=drivesdk</a> |
| Public note |
Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Source of classification or shelving scheme |
Clasificación local |
| Koha item type |
Documentos solicitados |
