Journal ArticleDOI
Photoelectrochemical treatment of ammonium using seawater as a natural supporting electrolyte
Reads0
Chats0
TLDR
In this article, a photoelectrochemical process containing seawater as a natural low-cost supporting electrolyte was used to remove ammonium from wastewater in a continuous flow mode, and the effect of four main independent parameters, including initial ammonium concentration, hydraulic retention time (HRT), current intensity and initial pH on the removal of ammonia was evaluated by the model.Abstract:
In the present study, a photoelectrochemical process containing seawater as a natural low-cost supporting electrolyte was used to remove ammonium from wastewater in a continuous flow mode. Based on central composite design (CCD), response surface methodology (RSM) was employed to evaluate the performance of the process in ammonia removal. The effect of four main independent parameters, including initial ammonium concentration, hydraulic retention time (HRT), current intensity and initial pH on the removal of ammonia was evaluated by the model. The optimal initial ammonium concentration, HRT, current intensity and initial pH were 917 mg NH 4− N;·L −1, 108 min, 1.8 A and 8.4, respectively. The high coefficients (R 2=0.97 and adjusted R 2=0.94) obtained by the analysis of variance (ANOVA) demonstrated close correlation between predicted and experimental values. Also, treating the reject water from the sludge dewatering unit as an ammonium-rich wastewater showed the effectiveness of the process for treating r...read more
Citations
More filters
Journal ArticleDOI
Synthesis and Characterization of Dysprosium-Doped ZnO Nanoparticles for Photocatalysis of a Textile Dye under Visible Light Irradiation
Alireza Khataee,Reza Darvishi Cheshmeh Soltani,Younes Hanifehpour,Mahdie Safarpour,Habib Gholipour Ranjbar,Sang Woo Joo +5 more
TL;DR: In this paper, Dy-doped ZnO nanoparticles were used for photocatalytic decolorization of C. I. acid red 17 solution under visible light irradiation.
Journal ArticleDOI
Sonocatalytic degradation of a textile dye over Gd-doped ZnO nanoparticles synthesized through sonochemical process.
TL;DR: Gd-doped ZnO nanoparticles can be used as a promising catalyst for degradation of organic pollutants with great reusability potential and decolorization efficiency decreased only 6% after 4 repeated runs.
Journal ArticleDOI
Ultrasonically induced ZnO-biosilica nanocomposite for degradation of a textile dye in aqueous phase.
TL;DR: In the present study, a porous clay-like support with unique characteristics was used for the synthesis and immobilization of ZnO nanostructures to be used as sonocatalyst for theSonocatalytic decolorization of methylene blue (MB) dye in the aqueous phase.
Journal ArticleDOI
Photocatalytic process by immobilized carbon black/ZnO nanocomposite for dye removal from aqueous medium: Optimization by response surface methodology
TL;DR: In this article, a photo-reactor equipped with carbon black (CB)/ZnO nanocomposite film was used for photodegradation of methyl orange, and the results showed that the process allowed 55.79% mineralization under optimized conditions.
Journal ArticleDOI
Response surface methodology optimization for sorption of malachite green dye on sugarcane bagasse biochar and evaluating the residual dye for phyto and cytogenotoxicity.
Govind Vyavahare,Ranjit Gurav,Pooja P. Jadhav,Ravishankar Patil,Chetan Aware,Jyoti P. Jadhav +5 more
TL;DR: The batch sorption studies for reutilization of SCB revealed that the SCB was effective in removal of MG for five repeated cycles, indicating this technology would be effective for treating the toxic textile effluent released from the textile industries.
References
More filters
Book
Standard methods for the examination of water and wastewater
TL;DR: The most widely read reference in the water industry, Water Industry Reference as discussed by the authors, is a comprehensive reference tool for water analysis methods that covers all aspects of USEPA-approved water analysis.
Standard Methods for the Examination of Water and Wastewater seventh edition
TL;DR: Standard Methods for the Examination of Water and Wastewater seventh edition, Standard methods for the examination of water and wastewater seventh edition , کتابخانه دیجیتال جندی اهواز.
Journal ArticleDOI
Biological treatment of ammonium-rich wastewater by partial nitritation and subsequent anaerobic ammonium oxidation (anammox) in a pilot plant
TL;DR: The combination of partial nitritation to produce nitrite in a first step and subsequent anaerobic ammonium oxidation in a second reactor was successfully tested on a pilot scale and limited the overall maximum rate of nitrogen elimination.
Journal ArticleDOI
Removal of total ammonia nitrogen (TAN), nitrate and total organic carbon (TOC) from aquaculture wastewater using electrochemical technology: A review
W.T. Mook,M.H. Chakrabarti,Mohamed Kheireddine Aroua,G. M. A. Khan,B. S. Ali,Md. Sakinul Islam,M. A. Abu Hassan +6 more
TL;DR: In this article, a review of electrochemical and bio-electrochemical technologies for the removal of protein rich wastes from aquaculture ponds and hatcheries is presented, which can remove contaminants at high efficiencies (≈99%) whilst giving least impact upon the environment.
Journal ArticleDOI
Oxidation of polyvinyl alcohol by persulfate activated with heat, Fe2+, and zero-valent iron
TL;DR: The oxidation of polyvinyl alcohol by persulfate activated with heat, Fe(2+), and zero-valent iron and an oxidation product of PVA was identified as vinyl acetic acid (C(4)H(6)O(2)), which is readily biodegradable.