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Richard A. Falk, Ernest R. Blatchley III, Thomas C. Kuechler, Ellen M. Meyer, Stanley R. Pickens and Laura M. Suppes
Current regulatory codes for swimming pool disinfection separately regulate free chlorine (FC) and cyanuric acid (CYA). It is well-known that CYA affects disinfection rates by reversibly binding to FC in aqueous solutions. However, limits for these regul...
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Karin Gallandat, David Stack, Gabrielle String and Daniele Lantagne
Sodium hypochlorite (NaOCl) and sodium dichloroisocyanurate (NaDCC) are commonly used for household water treatment (HWT); chlorine dioxide (ClO2) is a potential new HWT option. We compared the residual maintenance of NaOCl, NaDCC, and ClO2 over 24 hours...
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Chi Zhang, Hanchen Miao, Zhongfang Lei, Tian Yuan, Zhenya Zhang, Ikko Ihara, Hideaki Maseda and Kazuya Shimizu
Antibiotic resistance genes can be spread via gene horizontal transfer (GHT). Chlorination and UV irradiation are common disinfection methods used in wastewater treatment plants before the discharge of treated wastewater. This study aimed to elucidate th...
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El-Sayed A. Badr, Rady T. Tawfik and Mortada S. Alomran
Irrigation water quality is important to sustain agricultural productivity. The primary irrigation water sources in Al-Ahsa Oasis, KSA, are groundwater wells, mixed with treated wastewater and agricultural drainage. This study sought to evaluate irrigati...
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Sriman Pankaj Boindala, G. Jaykrishnan and Avi Ostfeld
Water distribution systems (WDSs) require high-quality water for safe consumption. To achieve this, disinfectants such as chlorine are often added to the water in the system. However, it is important to regulate the levels of chlorine to ensure they fall...
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Iliane Rodrigues Oliveira,Gustavo Ventorim,Ana Paula Almeida Ferraz
Pág. 157 - 170
O estágio de hidrólise ácida (AHT), usado em sequências de branqueamento de polpa, tem como objetivo principal a degradação dos ácidos hexenurônicos, que estando presentes na polpa podem afetar sua alvura, reversão de alvura, entre outros. Apesar do bene...
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Hongjian Wu and Caetano C. Dorea
Free chlorination is a widely employed disinfection method in humanitarian water provision due to its many advantages. However, its effective application is hindered by the challenge in determining adequate initial doses to achieve free chlorine residual...
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Philipp Otter, Katharina Mette, Robert Wesch, Tobias Gerhardt, Frank-Marc Krüger, Alexander Goldmaier, Florian Benz, Pradyut Malakar and Thomas Grischek
A large variety of Advanced Oxidation Processes (AOPs) to degrade trace organic compounds during water treatment have been studied on a lab scale in the past. This paper presents the combination of inline electrolytic chlorine generation (ECl2) with low ...
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Vincenzo Torretta, Athanasia K. Tolkou, Ioannis A. Katsoyiannis, Athanasios Katsoyiannis, Ettore Trulli, Elena Magaril and Elena Cristina Rada
The safety of high quality drinking water supply relies on the quantities to be delivered, on the complexity of the water supply systems, and on the widespread phenomena of the contamination of water bodies. These parameters indicate the need for the dev...
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André Felipe Librantz, Fábio Cosme Rodrigues dos Santos, Cleber Gustavo Dias
Pág. e37275
Artificial neural networks in the multivariable control of chlorine dosing in the post-chlorination stage in a water treatment plant in the Greater São Paulo, Brazil, are analyzed. The plant has constant fluctuations in chlorine demand caused by natural ...
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