New architecture of a variable anode for full-time efficient electrochemical oxidation of organic wastewater with variable Cl− concentration

A new advanced oxidation processes: electrochemical oxidation with iron promoting (EOIP) was presented and the treatment of an actual industrial wastewater from acrylonitrile production by three advanced oxidation processes (AOPs) has been studied: Fenton oxidation (FO), electro-Fenton oxidation (EFO), and electrochemical oxidation with iron promoting (EOIP). It was found that all the three processes were able to treat this wastewater, but different results in terms of efficiency and different behaviors were obtained. When the same dosage of H2O2 was added to the wastewater, the oxidation power of three AOPs increased in the order: FO < EFO < EOIP. Under the condition of higher dosage of H2O2, the three AOPs applied could achieve the better color removal. When the dosage of H2O2 was lower than 1,500 mg l−1, the color of the wastewater after treated increased from FO and EFO due to the formation of Fe (III) complexes, but this was not found in EOIP. The results of this work indicate that EOIP is a promising alternative for COD and color removal from organic wastewater.

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The fabrication of Ti4O7 particle composite modified PbO2 coating electrode and its application in the electrochemical oxidation degradation of organic wastewater

Journal of Alloys and Compounds ◽

10.1016/j.jallcom.2021.162742 ◽

2021 ◽

pp. 162742

Author(s):

Zhongwei Zhang ◽

Qinggui Xiao ◽

Xuan Du ◽

Tianyan Xue ◽

Zhanpeng Yan ◽

...

Keyword(s):

Electrochemical Oxidation ◽

Particle Composite ◽

Oxidation Degradation ◽

Coating Electrode ◽

Organic Wastewater

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Embedding wasted hairs in Ti/PbO2 anode for efficient and sustainable electrochemical oxidation of organic wastewater

Chinese Chemical Letters ◽

10.1016/j.cclet.2021.07.061 ◽

2021 ◽

Author(s):

Dan Shao ◽

Zekang Wang ◽

Cuiping Zhang ◽

Weijia Li ◽

Hao Xu ◽

...

Keyword(s):

Electrochemical Oxidation ◽

Pbo2 Anode ◽

Organic Wastewater

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Electrochemical Oxidation Combined with Adsorption: A Novel Route for Low Concentration Organic Wastewater Treatment

International Journal of Electrochemical Science ◽

10.20964/2019.08.10 ◽

2019 ◽

pp. 8110-8120 ◽

Cited By ~ 5

Author(s):

Xu Hao ◽

Keyword(s):

Wastewater Treatment ◽

Electrochemical Oxidation ◽

Low Concentration ◽

Organic Wastewater

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Age at Full-Time Use Predicts Language Outcomes Better Than Age of Surgery in Children Who Use Cochlear Implants

American Journal of Audiology ◽

10.1044/2019_aja-19-0073 ◽

2019 ◽

Vol 28 (4) ◽

pp. 986-992 ◽

Cited By ~ 2

Author(s):

Lisa R. Park ◽

Erika B. Gagnon ◽

Erin Thompson ◽

Kevin D. Brown

Keyword(s):

Cochlear Implants ◽

Time Use ◽

Expressive Language ◽

Normal Hearing ◽

Full Time ◽

Language Outcomes ◽

Age At Surgery ◽

Device Placement ◽

Device Use ◽

Better Than

Purpose The aims of this study were to (a) determine a metric for describing full-time use (FTU), (b) establish whether age at FTU in children with cochlear implants (CIs) predicts language at 3 years of age better than age at surgery, and (c) describe the extent of FTU and length of time it took to establish FTU in this population. Method This retrospective analysis examined receptive and expressive language outcomes at 3 years of age for 40 children with CIs. Multiple linear regression analyses were run with age at surgery and age at FTU as predictor variables. FTU definitions included 8 hr of device use and 80% of average waking hours for a typically developing child. Descriptive statistics were used to describe the establishment and degree of FTU. Results Although 8 hr of daily wear is typically considered FTU in the literature, the 80% hearing hours percentage metric accounts for more variability in outcomes. For both receptive and expressive language, age at FTU was found to be a better predictor of outcomes than age at surgery. It took an average of 17 months for children in this cohort to establish FTU, and only 52.5% reached this milestone by the time they were 3 years old. Conclusions Children with normal hearing can access spoken language whenever they are awake, and the amount of time young children are awake increases with age. A metric that incorporates the percentage of time that children with CIs have access to sound as compared to their same-aged peers with normal hearing accounts for more variability in outcomes than using an arbitrary number of hours. Although early FTU is not possible without surgery occurring at a young age, device placement does not guarantee use and does not predict language outcomes as well as age at FTU.

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Exploring Barriers to Doctoral Education in Communication Sciences and Disorders: Insights From Practicing Professionals

Perspectives of the ASHA Special Interest Groups ◽

10.1044/2020_persp-20-00019 ◽

2020 ◽

Vol 5 (6) ◽

pp. 1552-1563

Author(s):

Denise A. Tucker ◽

Mary V. Compton ◽

Sarah J. Allen ◽

Robert Mayo ◽

Celia Hooper ◽

...

Keyword(s):

Doctoral Students ◽

Online Survey ◽

Academic Research ◽

Doctoral Degree ◽

Full Time ◽

Doctoral Study ◽

Doctoral Research ◽

Part Time ◽

Advance Research ◽

Doctor Of Philosophy

Purpose The intended purpose of this research note is to share the findings of a needs assessment online survey of speech and hearing professionals practicing in North Carolina to explore their interest in pursuing a research-focused PhD in Communication Sciences and Disorders (CSD) and to document their perceptions of barriers to pursing a PhD in CSD. In view of the well-documented shortage of doctor of philosophy (PhD) faculty to attract, retain, and mentor doctoral students to advance research and to prepare future speech and hearing professionals, CSD faculty must assess the needs, perceptions, and barriers prospective students encounter when considering pursuing a doctoral research degree in CSD. Method The article describes the results of a survey of 242 speech and hearing professionals to investigate their interest in obtaining an academic research-focused PhD in CSD and to solicit their perceived barriers to pursuing a research doctoral degree in CSD. Results Two thirds of the respondents (63.6%) reported that they had considered pursuing a PhD in CSD. Desire for knowledge, desire to teach, and work advancement were the top reasons given for pursuing a PhD in CSD. Eighty-two percent of respondents had no interest in traditional full-time study. Forty-two percent of respondents indicated that they would be interested in part-time and distance doctoral study. The barriers of time, distance, and money emerged as those most frequently identified barriers by respondents. Conclusion The implications inform higher education faculty on how they can best address the needs of an untapped pool of prospective doctoral students in CSD.

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Monitoring Progress for Children with Hearing Loss

Perspectives on Hearing and Hearing Disorders in Childhood ◽

10.1044/hhdc24.2.74 ◽

2014 ◽

Vol 24 (2) ◽

pp. 74-81

Author(s):

Monica Weston ◽

Karen F. Muñoz ◽

Kristina Blaiser

Keyword(s):

Hearing Loss ◽

Hearing Aid ◽

Full Time ◽

Data Logging ◽

Standardized Measures ◽

Word Structure ◽

Hearing Aid Use ◽

Outcomes For Children ◽

Language Measures ◽

Children With Hearing Loss

Purpose This study investigated average hours of daily hearing aid use and speech-language outcomes for children age 3 to 6 years of age with hearing loss. Method Objective measures of hearing aid use were collected via data logging. Speech and language measures included standardized measures GFTA-2, CELF Preschool-2 and additional item analyses for the word structure subtest CELF Preschool-2 and the GFTA-2. Results Hearing aid use was full time for 33% of the children (n=3; M=8.84 hours; Range: 2.9–12.1) at the beginning of the study, and for 78% at the end of the study (n=7; M=9.89 hours; Range 2.6–13.2). All participants demonstrated an improvement in articulation and language standard scores and percentiles however continued to demonstrate areas of weakness in sounds high-frequency in nature. Conclusions Through early identification and fitting, children gain access to speech sounds. Both standardized measures and individual language analysis should be used to identify and support children with hearing loss in language and subsequent literacy development.

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