[{"command":"settings","settings":{"pluralDelimiter":"\u0003","suppressDeprecationErrors":true,"user":{"uid":0,"permissionsHash":"d9587e6f410d2e7f476e3da6cb10a457c78ab82347f962bf83d9020620f901dd"}},"merge":true},{"command":"add_css","data":[{"rel":"stylesheet","media":"all","href":"\/modules\/contrib\/addtocal\/addtocal.css?t2408i"},{"rel":"stylesheet","media":"all","href":"\/themes\/custom\/cest2025\/css\/components\/node.css?t2408i"}]},{"command":"add_js","selector":"body","data":[{"src":"\/core\/assets\/vendor\/jquery\/jquery.min.js?v=3.7.1"},{"src":"\/core\/assets\/vendor\/once\/once.min.js?v=1.0.1"},{"src":"\/core\/misc\/drupalSettingsLoader.js?v=10.5.1"},{"src":"\/core\/misc\/drupal.js?v=10.5.1"},{"src":"\/core\/misc\/drupal.init.js?v=10.5.1"},{"src":"\/modules\/contrib\/addtocal\/addtocal.js?v=10.5.1"},{"src":"\/modules\/contrib\/addtocal\/addtocal-download.js?v=10.5.1"}]},{"command":"openDialog","selector":"#drupal-modal","settings":null,"data":"\n\u003Carticle class=\u0022node node--type-presentation node--promoted node--view-mode-modal\u0022\u003E\n      \u003Cdiv\u003ESession 2 - Wastewater treatment (1)\u003C\/div\u003E\n  \n      \u003Cb\u003E\u003Cspan\u003EApplication of Cell Immobilization in the Batch Activated Sludge Treatment of Domestic and Poultry Wastewater Using Carbonized Coconut Shell and Carbonized Rice Hull\u003C\/span\u003E\n\u003C\/b\u003E\n  \n      \u003Cdiv\u003E\u003Cb\u003ECEST ID: cest2025_00161\u003C\/b\u003E\u003C\/div\u003E\n  \n        \u003Cdiv class=\u0022mb-3\u0022\u003E\n      \u003Cb\u003ERoom Aegle B | Thu 4 Sep 2025 | 10:05 - 10:15 am\u003C\/b\u003E\n    \u003C\/div\u003E\n  \n          \n    \n  \n      \u003Cdiv class=\u0022mt-10\u0022\u003E\n            \u003Cdiv class=\u0022clearfix text-formatted field field--name-presentation-body field--type-text-long field--label-hidden field__item\u0022\u003EDomestic wastewater (DWW) and poultry wastewater (PWW) are some of the primary sources of pollution that affect receiving surface and marine waters, potentially causing eutrophication and other environmental concerns. This study aimed to evaluate the effect of cell immobilization in the performance of batch activated sludge treatment (BAST), particularly nitrification and organic matter removal, in DWW and PWW. Two kinds of cell immobilizers were tested: carbonized coconut shell (CCS) and carbonized rice hull (CRH), both of which are produced from biowaste that are abundantly available in the Philippines. The cell immobilizers were applied in batch reactors seeded with activated sludge (AS) from a sewage treatment facility. Ammonia-nitrogen (NH3-N) and chemical oxygen demand (COD) concentrations were measured hourly over 6-hour periods via spectrophotometry. Application of CCS in two batches of AS-seeded BAST of DWW showed a 10.12% increase in average COD removal from 341.27 \u00b1 4.97 mg\/L to 375.79 \u00b1 3.79 mg\/L and an 18.55% increase in average NH3-N reduction from 23.49 \u00b1 7.77 mg\/L to 27.85 \u00b1 4.30 mg\/L. On the other hand, application of CRH in two batches of AS-seeded BAST of PWW showed a 10.69% increase in average COD removal from 483.00 \u00b1 28.56 mg\/L to 534.65 \u00b1 59.69 mg\/L and a 19.92% increase in average NH3-N reduction from 83.06 \u00b1 12.48 mg\/L to 99.61 \u00b1 14.63 mg\/L. Comparing the performance between the two immobilizers over three batches of BAST, results showed that CCS-immobilization had higher COD removal of 383.34 \u00b1 7.86 mg\/L (DWW) and 605.35 \u00b1 34.37 mg\/L (PWW)  and higher NH3-N reduction of 32.10 \u00b1 4.92 mg\/L (DWW) and 144.03 \u00b1 3.25 mg\/L (PWW)  compared to CRH-immobilization with COD removal of 351.90 \u00b1 29.27 mg\/L (DWW) and 557.05 \u00b1 41.10 mg\/L (PWW) and NH3-N reduction of 29.44 \u00b1 1.86 mg\/L (DWW) and 115.36 \u00b1 17.87 mg\/L (PWW). This study has demonstrated that aerobic treatment of DWW and PWW can be improved using cell immobilization, with CCS-immobilization substantially outperforming CRH-immobilization in terms of COD removal and NH3-N reduction.\u003C\/div\u003E\n      \u003C\/div\u003E\n  \n  \u003Cdiv class=\u0022mt-5 mb-5\u0022\u003E\n          \u003Cspan\u003E\n          \u003Cb\u003EPresenter:\u003C\/b\u003E\n                      \u003Cp\u003E\n            Prof Reuben Lingating\n            \u003C\/p\u003E\n                  \u003C\/span\u003E\n      \u003C\/div\u003E\n\n  \u003Cdiv class=\u0022mb-5\u0022\u003E\n          \u003Cdiv class=\u0022field__label\u0022\u003E\n        Authors\n      \u003C\/div\u003E\n              \u003Cp\u003E\n          Reuben Lingating\n        \u003C\/p\u003E\n              \u003Cp\u003E\n          Analiza Rollon\n        \u003C\/p\u003E\n            \u003C\/div\u003E\n\n\u003C\/article\u003E\n","dialogOptions":{"width":"700","position":{"my":"right top","at":"right top"},"closeOnEscape":true,"dialogClass":"presentation-dialog","modal":true,"title":"","classes":{"ui-dialog":"presentation-dialog"}}}]