| 000 -LEADER |
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| fixed length control field |
02045nam a2200277Ia 4500 |
| 001 - CONTROL NUMBER |
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| control field |
90738 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
ft7893 |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20251013135915.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
240722n 000 0 eng d |
| 040 ## - CATALOGING SOURCE |
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| Description conventions |
rda |
| 041 ## - LANGUAGE CODE |
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| Language code of text/sound track or separate title |
engtag |
| 050 ## - LIBRARY OF CONGRESS CALL NUMBER |
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| Classification number |
QD1.M37 2024 |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER |
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| Classification number |
. |
| 100 ## - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
Yuan S. masuda, Jemeul M. De Guzman, Jovelyn E. Duave, Marie Adeana Therese S. Sy. |
| 245 #0 - TITLE STATEMENT |
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| Title |
Heavy metal biosorption using Tripneustes gratilla (striped sea urchin ) test: equilibrium isotherm and kinetic studies. |
| 264 ## - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE |
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| Place of production, publication, distribution, manufacture |
Manila: |
| Name of producer, publisher, distributor, manufacturer |
PLM, |
| Date of production, publication, distribution, manufacture, or copyright notice |
c2024 |
| 300 ## - PHYSICAL DESCRIPTION |
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| Other physical details |
Undergraduate Thesis: (Bachelor of Science in Chemistry) - Pamantasan ngf Lungsod ng Maynila, 2024 |
| 336 ## - CONTENT TYPE |
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| Content type code |
text |
| Content type term |
text |
| Source |
text |
| 337 ## - MEDIA TYPE |
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| Media type code |
unmediated |
| Media type term |
unmediated |
| Source |
unmediated |
| 338 ## - CARRIER TYPE |
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| Carrier type code |
volume |
| Carrier type term |
volume |
| Source |
volume |
| 505 ## - FORMATTED CONTENTS NOTE |
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| Formatted contents note |
ABSTRACT: An untreated biosorbent prepared from Tripneustes gratilla test was utilized as an eco-friendly alternative for the aqueous removal of Mn(II), Co(II), Ni(II), and Cu(II). Characterization revealed a moisture content of 5.064 (=0.096)%, a pH of 8.279 (=0.033) at 20.9 (=0.5) C, a conductivity of 59.6 (=0.5)uS cm-1 at 24.6 (=0.3) 0C, and aqueous solubility of 6.1 (=0.3) %. ATR-FTIR analysis confirmed the presence of amorphous CaCO3 and supported physisorption. SEM-EDS revealed non-porous particulates, primarily composed of O (53%), Ca (34%), C (11%), and Mg (2%). Optimization determined an optimal pH of 6 for Mn and 5 for Co, Ni, and Cu, and an optimal biosorbent dosage of 125 g L-1 for Cu. Kinetic studies favoured PSO kinetics for all metals. Equilibrium isotherm studies showed that the Freundlich isotherm suited Mn biosorption best, whereas the Langmuir isotherm modelled Co, Ni, and Cu better. From the Dibinin-Radushkevich isotherm, physisirptive mean free energy values were determined for all metals. T. gratilla test shows promising biosorptive potential in the removal of the selected divalent metals at the given conditions. |
| 526 ## - STUDY PROGRAM INFORMATION NOTE |
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| Classification |
Filipiniana |
| 540 ## - TERMS GOVERNING USE AND REPRODUCTION NOTE |
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| Terms governing use and reproduction |
5 |
| 655 ## - INDEX TERM--GENRE/FORM |
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| Genre/form data or focus term |
academic writing |
| 942 ## - ADDED ENTRY ELEMENTS |
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| Institution code [OBSOLETE] |
lcc |
| Item type |
Thesis/Dissertation |
| Koha issues (borrowed), all copies |
1 |
| Source of classification or shelving scheme |
|