Treatment and Management of Industrial Dye Wastewater for Water Resources Protection

Butler, Erick; Hung, Yung‐Tse; Ahmad, Mohammed Al; Fu, Yen‐Pei

doi:10.1007/978-3-319-26800-2_4

Cited by 7 publications

(2 citation statements)

References 134 publications

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“…In China, about 6-7 billion tons printing and dyeing wastewater is discharged into the environment every year, which is one of the most important sources of organic pollution in water [1][2][3]. These soluble organic pollutants are complex, highly chromaticity, difficult to degrade, and have great biological toxicity.…”

Section: Introductionmentioning

confidence: 99%

Crystallinity and photocatalytic properties of BiVO₄/halloysite nanotubes hybrid catalysts for sunlight-driven decomposition of dyes from aqueous solution

Sun¹,

Zhao²,

Qin³

et al. 2021

Nanotechnology

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The BiVO4/HNTs hybrid photocatalysts were synthesized by liquid phase precipitation using natural halloysite nanotubes (HNTs) as supporter and Bi(NO3)·5H2O as resource of Bi. XRD, scanning electron microscopy (SEM), transmission electron microscopy, HRTEM, x-ray photo electron spectroscopy and UV–Vis DRS were used to characterize the samples prepared at different calcination temperatures, and the effects of crystallization, Brunauer–Emmett–Teller specific surface area and morphological structure on the photoactivity were investigated. Results reveal that increasing calcination temperature can accelerate the transition of BiVO4 from tetragonal to monoclinic and also decrease the surface area of BiVO4/HNTs. The SEM results showed that BiVO4 was successfully coated on HNTs surface with ellipsoid or near rod like morphology, and the obtained BiVO4/HNTs had regular nanotube morphology. HRTEM results showed that, the regular fringe spacing of the lattice planes are about 0.474 and 0.364 nm, which is consistent with the (110) and (200) plane of the monoclinic and tetragonal BiVO4, confirming the exiting of mixed crystal structure in BiVO4/HNTs. BiVO4 with tetragonal phase (80.02%) and monoclinic phase (19.98%) mixed crystal is loaded on the surface of HNTs with calcinations at 400 °C for 2 h. The structure and Si (Al)–O bond of HNTs can be obviously changed over the calcination temperature of 400 °C. The effect of calcination temperature on photocatalytic reactivity of samples was investigated by degradation of dyes (MB, MO and RhB) under simulated solar light. And the sample calcined at 400 °C with the better mixed crystalline structure and larger specific surface area exhibits significant activity with the removal rate of MB and RhB up to 100% within 4 h. The degradation of MB follows the first order kinetic model. BiVO4/HNTs photocatalysts with the band gap of 2.34 eV has higher photocatalytic reaction rate and better sedimentation performance than Degussa P25. The photocatalytic degradation efficiency of BiVO4/HNTs for MB was no significant reduction after four times recycles.

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Section: Introductionmentioning

confidence: 99%

Crystallinity and photocatalytic properties of BiVO₄/halloysite nanotubes hybrid catalysts for sunlight-driven decomposition of dyes from aqueous solution

Sun¹,

Zhao²,

Qin³

et al. 2021

Nanotechnology

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“…N, P), 2) low removal efficiency of nutrients, 3) high operational costs of conventional wastewater treatment and 4) secondary products and byproduct produced during the conventional wastewater treatment. Hence, the use of algae for the biological treatment of wastewater, nowadays, has been recognized as a global strategy (Boelee et al, 2011;Butler et al, 2016;Grady Jr. et al, 2011;Metcalf and Eddy, 1991;Wu et al, 2016). Microalgae have been used in large ponds for the treatment of wastewater for a long time.…”

Section: Introductionmentioning

confidence: 99%

Studies on influence of process parameters on simultaneous biodegradation of atrazine and nutrients in aquatic environments by a membrane photobioreactor

Derakhshan

Mahvi

Ehrampoush

et al. 2018

Environmental Research

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A Lab scale algal-bacterial membrane photobioreactor (MPBR) was designed and operated under 12-h light and 12-h dark conditions with a light intensity of 8000lx, in order to investigate the effects of initial concentrations of atrazine, carbon concentration, and hydraulic retention time on the ability of this photobioreactor in simultaneous removal of atrazine and nutrients in the continuous mode. The removal efficiencies of atrazine (ATZ), chemical oxygen demand (COD), phosphorus (PO-P) and nitrogen (NOx) in optimum condition was more than 95%, 99%, 98% and 97% when the maximum removal rates were 9.5 × 10, 99.231, 11.773 and 7.762mg/L-day, respectively. Results showed that the quality of the effluent was reduced by the increase of atrazine concentration. The outcomes on the hydraulic and toxic shocks indicated that the system has a relatively good resistance to the shocks and can return to the stable conditions. Microalgae showed a great deal of interest and capability in cultivating and attaching to the surface of the membrane and bioreactor, and the total biomass accumulated in the system was greater than 6g/L. The kinetic coefficients of atrazine removal were also studied using various kinetic models. The maximum atrazine removal rate was determined by the modified Stover-Kincannon model. The results approved the ability of the MPBR reactor in wastewater treatment and microalgae cultivation and growth. The decline of atrazine concentration in this system could be attributed to the algal-bacterial symbiosis and co-metabolism process. Accordingly, the MPBR reactor is a practical, simple, economical and therefore suitable process for simultaneous biodegradation of chlorinated organic compounds and nutrients removal from aquatic environments.

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Well-structured 3D channels within GO-based membranes enable ultrafast wastewater treatment

Wang

Qian

et al. 2022

Nano Res.

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Treatment and Management of Industrial Dye Wastewater for Water Resources Protection

Cited by 7 publications

References 134 publications

Crystallinity and photocatalytic properties of BiVO₄/halloysite nanotubes hybrid catalysts for sunlight-driven decomposition of dyes from aqueous solution

Crystallinity and photocatalytic properties of BiVO₄/halloysite nanotubes hybrid catalysts for sunlight-driven decomposition of dyes from aqueous solution

Studies on influence of process parameters on simultaneous biodegradation of atrazine and nutrients in aquatic environments by a membrane photobioreactor

Well-structured 3D channels within GO-based membranes enable ultrafast wastewater treatment

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Treatment and Management of Industrial Dye Wastewater for Water Resources Protection

Cited by 7 publications

References 134 publications

Crystallinity and photocatalytic properties of BiVO4/halloysite nanotubes hybrid catalysts for sunlight-driven decomposition of dyes from aqueous solution

Crystallinity and photocatalytic properties of BiVO4/halloysite nanotubes hybrid catalysts for sunlight-driven decomposition of dyes from aqueous solution

Studies on influence of process parameters on simultaneous biodegradation of atrazine and nutrients in aquatic environments by a membrane photobioreactor

Well-structured 3D channels within GO-based membranes enable ultrafast wastewater treatment

Contact Info

Product

Resources

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Crystallinity and photocatalytic properties of BiVO₄/halloysite nanotubes hybrid catalysts for sunlight-driven decomposition of dyes from aqueous solution

Crystallinity and photocatalytic properties of BiVO₄/halloysite nanotubes hybrid catalysts for sunlight-driven decomposition of dyes from aqueous solution