نتایج جستجو برای: ozonation 25 mg o3 g vss

تعداد نتایج: 1025989  

2012
Thomas Gloor-Juzi Annette Kurre Dominik Straumann Eling D de Bruin

BACKGROUND Dizziness and comorbid anxiety may cause severe disability of patients with vestibulopathy, but can be addressed effectively with rehabilitation. For an individually adapted treatment, a structured assessment is needed. The Vertigo Symptom Scale (VSS) with two subscales assessing vertigo symptoms (VSS-VER) and associated symptoms (VSS-AA) might be used for this purpose. As there was ...

Journal: :Journal of environmental chemical engineering 2022

A treatment train for the remediation of a raw olive mill wastewater (OMW) was investigated, aiming to comply with emission limit values (ELVs) direct discharge into water bodies. The following stages were proposed: (i) pre-treatment (filtration and sedimentation), (ii) coagulation, (iii) biological oxidation, (iv) advanced oxidation process (AOP). Under best-operating conditions coagulation (0...

Journal: :Water research 2012
Lu Lu Defeng Xing Bingfeng Liu Nanqi Ren

Fermentative hydrogen production from waste activated sludge (WAS) has low H2 yield because WAS contains limited amounts of carbohydrate suitable for use by hydrogen-producing bacteria. Here, augmentation of hydrogen production from WAS by microbial electrolysis cells (MECs) was implemented. H2 yields of 3.89±0.39 mg-H2/g-DS (5.67±0.61 mg-H2/g-VSS) from raw WAS and 6.78±0.94 mg-H2/g-DS (15.08±1...

بذرافشان, ادریس, بلارک, داوود, توسلی, پریسا, مقصودی, زهرا, کرد مصطفی پور, فردوس,

Background andpurpose:Currently, leachate production and its management are major environmental problems associated with the operation of solid waste landfill. The aim of this study was to evaluate the efficiency of combined processes of coagulation, ozonation, and advanced oxidation using UV-activated oxone in treatment of landfill leachate of Zahedan, Iran. Materials andmethods: This exper...

Journal: :Journal of hazardous materials 2013
Noemí Merayo Daphne Hermosilla Laura Blanco Luis Cortijo Angeles Blanco

The closure of water circuits within pulp and paper mills has resulted in a higher contamination load of the final mill effluent, which must consequently be further treated in many cases to meet the standards imposed by the legislation in force. Different treatment strategies based on advanced oxidation processes (ozonation and TiO2-photocatalysis), and their combination with biological treatme...

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2010
K M S Hansen H R Andersen A Ledin

The present study shows that ozonation of effluents from municipal wastewater treatment plants (WWTPs) is likely to be a future treatment solution to remove estrogens and xeno-estrogens. The required ozone dose and electrical energy for producing the ozone were determined in two WWTP effluents for removal of 17 estrogenic chemicals. The estrogenic compounds included parabens, industrial phenols...

Journal: :Water Research 2021

Abstract Ozone (O3) has been widely used for the elimination of recalcitrant micropollutants in aqueous environments, due to its strong oxidation ability. However, utilization efficiency O3 is constrained by low solubility and short half-life during treatment process. Herein, an integrated approach, using nanobubble technology micro-environmental chemistry within cyclodextrin inclusion cavities...

2016
Piotr Dziugan Maria Balcerek Michal J. Binczarski Dorota Kregiel Marcin Kucner Alina Kunicka-Styczynska Katarzyna Pielech-Przybylska Krzysztof Smigielski Izabela A. Witonska

BACKGROUND Intermediates from processing sugar beets are considered an attractive feedstock for ethanol fermentation due to their high fermentable sugar content. In particular, medium prepared from raw sugar beet juice seems to be suitable for use in fermentation processes, but it is microbiologically unstable and requires sterilization. RESULTS This study investigates the effect of ozone tre...

Journal: :Environmental science. Processes & impacts 2017
Hang Yu Pu Ge Jingwen Chen Hongbin Xie Yi Luo

Sulfamethoxazole (SMX), a kind of antibiotic, remains in the environment and threatens public health. Ozone as a strong and green oxidant was widely used for selective oxidation degradation of residual SMX. However, it is hard to elucidate the detailed oxidation mechanism through current experimental approaches. A theoretical study has been carried out herein for exploring possible ozonation pa...

2016
J. Derco J. Dudáš

The results of the study of removal of nonylphenol, octylphenol and their ethoxylates from real industrial and municipal wastewater are presented. Industrial wastewater was pre-treated by coagulation with FeCl3 and adsorption on zeolite, before discharging into municipal sewer system. Their removal efficiencies in primary sedimentation tank of municipal WWTP were very low. From the practical po...

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