NDLI: Modeling approaches to predict removal of trace organic compounds by ozone oxidation in potable reuse applications

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Front cover

Inside front cover

Contents list

Research highlights: advances and challenges in developing mainstream anammox treatment

Potable reuse of water

Water recycling in Australia – during and after the drought

International research agency perspectives on potable water reuse

The osmotic membrane bioreactor: a critical review

Bioanalytical tools: half a century of application for potable reuse

Closing the urban water loop: lessons from Singapore and Windhoek

Rapid direct injection LC-MS/MS method for analysis of prioritized indicator compounds in wastewater effluent

Triple bottom line costs for multiple potable reuse treatment schemes

Target screening of chemicals of concern in recycled water

Effects of molecular ozone and hydroxyl radical on formation of N-nitrosamines and perfluoroalkyl acids during ozonation of treated wastewaters

Human health risk associated with direct potable reuse – evaluation through quantitative relative risk assessment case studies

Online fluorescence monitoring of RO fouling and integrity: analysis of two contrasting recycled water schemes

Modeling approaches to predict removal of trace organic compounds by ozone oxidation in potable reuse applications

Applying the water safety plan to water reuse: towards a conceptual risk management framework

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Environmental Science: Water Research & Technology Vol - 1 Issue - 4

Environmental Science: Water Research & Technology Vol - 1 Issue - 3

Environmental Science: Water Research & Technology Vol - 1 Issue - 2

Environmental Science: Water Research & Technology Vol - 1 Issue - 1

Modeling approaches to predict removal of trace organic compounds by ozone oxidation in potable reuse applications

Content Provider	Royal Society of Chemistry (RSC)
Author	Anumol, Tarun Park, Minkyu Snyder, Shane A.
Copyright Year	2015
Abstract	Realized and potential threats of water scarcity due in part to global climate change have increased the interest in potable reuse of municipal wastewater. Recalcitrant trace organic compounds (TOrCs), including pharmaceuticals and endocrine disrupting compounds in wastewater are often not efficiently removed by conventional wastewater treatment processes. Ozone application has been demonstrated to be a highly efficient oxidation process to attenuate TOrCs. However, operation of ozone oxidation can be challenging in wastewater due to variations in water quality that can impact critical control points through fluctuations in ozone demand/decay. Therefore, this study implemented three explanatory modeling techniques including multiple linear regression (MLR), artificial neutral network (ANN), and PC (principal component)-ANN to predict TOrCs removal by ozone oxidation in a secondary wastewater effluent. All the developed models displayed good agreements between the predicted TOrCs removal and the observed TOrCs removal with the explanatory variables (input variables) of ozone dose, total organic carbon (TOC) concentration, and rate constants of ozone and ˙OH. PC-ANN displayed the highest predictive power in the external validation step (R2 = 0.934) successively followed by ANN (R2 = 0.914) and MLR (R2 = 0.758). Based on the MLR model equation and the result of sensitivity analysis of the ANN model, TOC was found to have negligible effects on the TOrCs removal in a given water quality. Despite the predictive power of the ANN model, possible overfitting remains to be solved since the cross validation coefficient (q2) value calculated by the leave-one-out cross validation was not sufficient to ensure model predictive power. In contrast, the PC-ANN model was found to be robust across the scenarios applied. This study provides a guideline for software sensors to control ozone treatment processes in regards to TOrC oxidation and likely can be adapted to monitor disinfection as well.
Starting Page	699
Ending Page	708
Page Count	10
File Format	HTM / HTML PDF
ISSN	20531400
Volume Number	1
Issue Number	5
Journal	Environmental Science: Water Research & Technology
DOI	10.1039/c5ew00120j
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Subscribed
Subject Keyword	TOC Water scarcity Climate change Wastewater Endocrine system Ozone Linear regression Neutral network (evolution) Personal computer Total organic carbon Sensitivity analysis Overfitting Cross-validation (statistics)
Content Type	Text
Resource Type	Article
Subject	Environmental Engineering Water Science and Technology

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Modeling approaches to predict removal of trace organic compounds by ozone oxidation in potable reuse applications

Total organic carbon removal from a chemical lab's wastewater using Fenton's reagent

Phenolic compounds removal from mimosa tannin model water and olive mill wastewater by energy-efficient electrocoagulation process

Chemical oxidation process for the treatment of antibiotic.

Decolourization and removal of some organic compounds from olive mill wastewater by advanced oxidation processes and lime treatment

Removal of Animal Antibiotics for Potable Water Reclamation: A Review

Removal of total ammonia nitrogen (TAN), nitrate and total organic carbon (TOC) from aquaculture wastewater using electrochemical technology: A review

Odorous compounds in municipal wastewater effluent and potable water reuse systems.

From Domestic Sewage to Potable Water Quality: New Approach in Organic Matter Removal Using Natural Treatment Systems for Wastewater

Modeling approaches to predict removal of trace organic compounds by ozone oxidation in potable reuse applications

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