Nguyen, Nhat Huy Khoi, Tran Tien Hung, Thang Nguyen Xuan, Que Vo Nguyen Thi, Thuong Ho Le Thi, Phuong Thi, Thuy Nguyen
Published in
Environmental technology
In this study, we synthesized and modified titanate nanotubes (TNTs) under different conditions of acid rinsing and calcination. The produced materials were then characterized by transmission electron microscopy, X-ray diffraction, ultraviolet-visible spectroscopy, temperature programmed desorption, inductively coupled plasma atomic emission spectr...
Oliveira, Eduardo Paniguel Souza, Theo Syrto Octavio de Okada, Dagoberto Y Damasceno, Leonardo H S Salustiano, Rogério Esteves Moura, Rafael Brito de
Published in
Environmental technology
The Structured Bed Reactor with Recirculation and Intermittent Aeration (SBRRIA) is a reactor configuration that presents high efficiency of organic matter and nitrogen removal, besides low sludge production. However, operational parameters, as the recirculation rate, aeration time, and airflow, are not fully established. A bench-scale structured b...
Nawaz, Muhammad Imran Yi, Chengwu Zhao, Hong Asilevi, Prince Junior Yin, Lanlan Yi, Rongjie Javed, Qaiser Wang, Huijuan
Published in
Environmental technology
Nitrobenzene (NB) is toxic and carcinogenic aromatic compound widely used in several industries which is ultimately found in their effluents. In this work, dielectric barrier discharge (DBD) reactor was employed for the degradation of nitrobenzene in aqueous solution. Active species like O3 and •OH produced by DBD reactor were mixed with water whic...
Hernández, Karina Muro, Claudia Ortega, Rosa Elena Velazquez, Sarai Riera, Francisco
Published in
Environmental technology
This work presents a proposal for the recovery of water through the treatment of food industry wastewater using membrane processes. Three wastewater streams from the different manufacturing steps were identified as possible sources of water recovery: (1) wastewater from the washing of ionic exchange resins and (2) wastewater from the concentration ...
Mishra, Pravat Manjari Barick, Loparani Devi, Aparna Prabha Swain, Krishna Kumari
Published in
Environmental technology
In this article, the biosorption of Holmium(III) from aqueous solution was carried out using both raw and acid-treated bark powder of Mangifera indica as bio-sorbents and the results are being compared. Batch experiments were conducted by varying different reaction parameters such as metal concentration, biomass dosage, pH of the metal solution and...
Li, Yinghui Zhang, Qianqian Jiang, Junxiang Li, Ling
Published in
Environmental technology
N-doped TiO2/ reduced graphene oxide (N/TiO2/rGO) composite was prepared and used together with the commercial TiO2 for comparative research on photocatalytic degradation of crude oil in seawater. Five test conditions were designed including a combined catalyst of TiO2 and N/TiO2/rGO (4:1) under UV-A light irradiation with a duration of 28 days. Th...
Hosseini, Seyed Ghorban Pasikhani, Javad Vahabzadeh
Published in
Environmental technology
In recent years, photocatalytic reduction of Cr(VI) to Cr(III) by TiO2 nanostructures, as a potent environmental technology has attracted a lot of attention. However, several defects including the large band gap energy of TiO2, fast photogenerated charge recombination and re-oxidation of Cr(III) restrict their practical application. In this work, t...
Ferro Orozco, A M Contreras, E M Zaritzky, N E
Published in
Environmental technology
Hexavalent chromium becomes in one of the tops internationally concern environmental issues due to its wide usage in several industrial activities. There are two stable oxidation states of chromium in the environment which differ significantly on its toxicity; Cr(III) has lower solubility, mobility and lesser biological toxicity in comparison with ...
Luo, Chao Guo, Xiaoping Liu, Guanhong Zhao, Tingning Wang, Yingyu
Published in
Environmental technology
The scarcity of turfy soil (TS), which is the most commonly used external-soil spray seeding (ESSS) substrate component, has recently increased. The aim of this study was to introduce a substitute for TS as an organic matter additive in substrate. Green waste compost (GWC) that was combined with sandy loam soil, polyacrylamide (PAM), and super abso...
Rodríguez-Gómez, Luis E Rodríguez-Sevilla, Juan Hernández, Antonio Álvarez, Manuel
Published in
Environmental technology
This work provides information on nitrification with nitrite accumulation in low strength ammonia (below 50 mg L-1 NH4-N) and low organic matter (below 150 mg L-1 COD) reclaimed wastewater. In the South Tenerife reclaimed wastewater pipeline (62 km long), injection of O2 has been applied to promote a nitrification process in order to improve water ...
