Removal of tetramethylammonium hydroxide (TMAH) from thin-film transistor liquid crystal display (TFT-LCD) industry wastewater by hydrolysis acidification-aerobic and anaerobic processes

Lv, Juan; Wang, Yan; Fu, Mengya; Ou, Changyuan; Xiao, Fan

doi:10.1016/j.jclepro.2020.123502

Cited by 18 publications

(2 citation statements)

References 39 publications

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“…The hydrolytic acidification process has been widely used in practical engineering because it can balance water quality, generate less sludge, and improve the biodegradability of pharmaceutical wastewater. Hydrolytic acidification has many advantages, including easily controllable conditions, simple operation, and certain tolerance to toxic substances ( Guo et al, 2020 ; Lv et al, 2021 ; Zhang et al, 2021 ). It is, however, difficult to completely degrade pharmaceutical organic toxicants by hydrolysis acidification alone, because of its long hydraulic retention time, extensive coverage, and poor economics ( Min et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Study on the removal characteristics and degradation pathways of highly toxic and refractory organic pollutants in real pharmaceutical factory wastewater treated by a pilot-scale integrated process

Dai

Pang²,

Ding³

et al. 2023

Front. Microbiol.

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IntroductionPharmaceutical wastewater frequently contains high levels of toxic pollutants. If they are discharged untreated, they pose a threat to the environment. The traditional activated sludge process and the advanced oxidation process do not sufficiently remove toxic and conventional pollutants from pharmaceutical wastewater treatment plants (PWWTPs).MethodsWe designed a pilot-scale reaction system to reduce toxic organic pollutants and conventional pollutants from pharmaceutical wastewater during the biochemical reaction stage. This system included a continuous stirred tank reactor (CSTR), microbial electrolysis cells (MECs), an expanded sludge bed reactor (EGSB), and a moving bed biofilm reactor (MBBR). We used this system to further investigate the benzothiazole degradation pathway.Results and discussionThe system effectively degraded the toxic pollutants (benzothiazole, pyridine, indole, and quinoline) and the conventional chemicals (COD, NH4+-N, TN). During the stable operation of the pilot-scale plant, the total removal rates of benzothiazole, indole, pyridine, and quinoline were 97.66, 94.13, 79.69, and 81.34%, respectively. The CSTR and MECs contributed the most to the removal of toxic pollutants, while the EGSB and MBBR contributed less to the removal of the four toxic pollutants. Benzothiazoles can be degraded via two pathways: the benzene ring-opening reaction and the heterocyclic ring-opening reaction. The heterocyclic ring-opening reaction was more important in degrading the benzothiazoles in this study.ConclusionThis study provides feasible design alternatives for PWWTPs to remove both toxic and conventional pollutants at the same time.

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Section: Introductionmentioning

confidence: 99%

Study on the removal characteristics and degradation pathways of highly toxic and refractory organic pollutants in real pharmaceutical factory wastewater treated by a pilot-scale integrated process

Dai

Pang²,

Ding³

et al. 2023

Front. Microbiol.

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“…Thin film transistors (TFTs) are a special type of field-effect transistors that showed a booming trend in various applications, including but not limited to, liquid crystal display (LCD) technology, [1][2][3] gas-sensing, 4,5 biosensors 6 and wearable flexible devices. 7 Relatively low fabrication temperature and simple structures promote TFTs in transistors industry.…”

Section: Introductionmentioning

confidence: 99%

Simulating the I‐V characteristics of an ultrathin IGZO‐based thin film transistor using finite element method

Hussien

Abdellatif

2021

Int J Numerical Modelling

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Thin film transistors (TFTs) are ranked as one of the promising field-effect transistors in the electronic industry. TFTs showed a great potential in many applications where liquid crystal displays, touchscreens, and biosensors are of the leading. In the current study, we are demonstrating a numerical carrier transport model based on finite element method (FEM), to investigate InGaZnO (IGZO) based TFTs. Amorphous silicon TFT has been simulated as a bare device. The impact of scaling down the dimension of the TFT, up to 30 nm channel length, on the output performance characteristics of the transistor has been addressed. Additionally, the effects of active semiconductor layer doping concentration and oxide layer thickness have been investigated. Moreover, a novel approach is introduced to correlate the selected input design parameters with a set of characteristic outputs including threshold voltage, on/off current ratio, and subthreshold swing. The proposed model correlates input and outputs using a characteristic matrix with nine coefficients, making it possible to predict, that is, interpolate, the characteristic outputs within the system boundaries. The suggested model was verified with respect to input data as well as data from the literature showing a very acceptable agreement.

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Quorum quenching bacteria isolated from industrial wastewater sludge to control membrane biofouling

Noori

Kim

et al. 2022

Bioresource Technology

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Removal of tetramethylammonium hydroxide (TMAH) from thin-film transistor liquid crystal display (TFT-LCD) industry wastewater by hydrolysis acidification-aerobic and anaerobic processes

Cited by 18 publications

References 39 publications

Study on the removal characteristics and degradation pathways of highly toxic and refractory organic pollutants in real pharmaceutical factory wastewater treated by a pilot-scale integrated process

Study on the removal characteristics and degradation pathways of highly toxic and refractory organic pollutants in real pharmaceutical factory wastewater treated by a pilot-scale integrated process

Simulating the I‐V characteristics of an ultrathin IGZO‐based thin film transistor using finite element method

Quorum quenching bacteria isolated from industrial wastewater sludge to control membrane biofouling

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