Sara Bajelani, Naeimeh Enayatizamir, Ali Beheshti Ale Agha, Rouhallah Sharifi
{"title":"Potential of some microbial isolates on diesel hydrocarbons removal, bio surfactant production and biofilm formation","authors":"Sara Bajelani, Naeimeh Enayatizamir, Ali Beheshti Ale Agha, Rouhallah Sharifi","doi":"10.1007/s40201-023-00868-9","DOIUrl":"10.1007/s40201-023-00868-9","url":null,"abstract":"<div><p>Potential of <i>Arthrobacter citreus</i> B27Pet, <i>Bacillus thuringiensis</i> B48Pet and <i>Candida catnulata</i> to produce biosurfactant using four different carbon sources (naphthalene, hexadecane, diesel and petroleum crude oil) was investigated. Removal of petroleum crude oil from aqueous culture and degradation of diesel were also determined using single and mixed culture of strains. The biofilm existence in single and mixed culture of strains was considered using naphthalene, hexadecane and diesel in culture medium. Cell surface hydrophobicity of <i>A. citreus</i> was higher than other isolates which also showed maximum surface tension reduction and emulsification index. As a whole, remarkable biosurfactant production occurred using petroleum crude oil as a carbon source in medium. <i>A. citreus</i> was found to be more robust than other tested strains in removal efficiency of crude oil due to its biosurfactant production capability. Statistically significant positive correlation was observed between biofilm existence and surface tension using diesel and hexadecane as carbon source. Overall diesel biodegradation efficiency by the mix culture of three applied strains was about 75% within a short period of time (10 days) which was accompanied with high biofilm production.</p></div>","PeriodicalId":628,"journal":{"name":"Journal of Environmental Health Science and Engineering","volume":"21 2","pages":"417 - 428"},"PeriodicalIF":3.4,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40201-023-00868-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45728487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Anwar Ahmad, Alaya Said Senaidi, Sajjala Sreedhar Reddy
{"title":"Electrochemical process for petroleum refinery wastewater treatment to produce power and hydrogen using microbial electrolysis cell","authors":"Anwar Ahmad, Alaya Said Senaidi, Sajjala Sreedhar Reddy","doi":"10.1007/s40201-023-00874-x","DOIUrl":"10.1007/s40201-023-00874-x","url":null,"abstract":"<div><p>This research aims to assess the microbial electrolysis cell (MEC) fed with petroleum refinery wastewater (PRW) to produce power density and bio-electrochemical hydrogen. The MEC produces a maximum bio-electricity of 21.4 mA and a power density of 1200123.90 W/m<sup>2</sup> with a loading of chemical oxygen demand (COD) of 17000 mg/L. Due to catalyzed oxidation of complex compounds in PRW with a maintained microbial biofilm growth was observed after 90 d of operation of MEC. Results showed that the oxidation of organic substances in PRW enhanced the size in the growth of microbial film which further increased the generation of electrons leading to current density of 5890 mA/m<sup>2</sup>. The COD removal efficiency of MEC was found to be 89.9%. The bio-electricity and hydrogen production of the MEC was estimated to be 24.5 mA and 19.2 L respectively when loaded with PRW having a COD of 17500 mg/L after 130 d. Present experiments demonstrate the efficiency of MEC technology efficiency in treating petroleum wastewater with the help of microbial biofilm.</p></div>","PeriodicalId":628,"journal":{"name":"Journal of Environmental Health Science and Engineering","volume":"21 2","pages":"485 - 496"},"PeriodicalIF":3.4,"publicationDate":"2023-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40201-023-00874-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46570729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Response surface methodology (RSM) for optimizing ozone-assisted process parameters for formaldehyde removal","authors":"Amin Nemati Tamar, Mohadeseh Karbasi, Mohammad Reza Khani, Tayebeh Hamzehlouyan, Babak Shokri","doi":"10.1007/s40201-023-00873-y","DOIUrl":"10.1007/s40201-023-00873-y","url":null,"abstract":"<div><p>Formaldehyde, a volatile organic compound (VOC), is one of the main gaseous pollutants from commercial cooking. The present study evaluated the effectiveness of a laboratory-scale ozone-assisted indirect plasma method for formaldehyde removal using response surface methodology (RSM). A dielectric barrier discharge (DBD) reactor was used for ozone generation. Inlet HCHO concentration, ozone concentration, and residence time were considered the design parameters, and formaldehyde removal efficiency (response 1) and energy yield (response 2) were considered response parameters. The optimized models showed a positive correlation between the predicted and experimental outcomes. Inlet ozone concentration, the most significant parameter in the removal efficiency model, represented a positive correlation with this response in most parts of the operating region. The optimal point with the highest desirability (i.e., D<sub>1</sub> point) was obtained at the inlet HCHO concentration of 120 ppm, inlet ozone concentration of 40 ppm, and reaction time of 11.35 s within the parameter ranges studied, resulting in 64% removal efficiency and 2.64 g/kWh energy yield. At the point with the second highest desirability (D<sub>2</sub>), 100% removal efficiency along with 0.7 g/kWh energy yield was achieved indicating the very good performance of the process. The indirect plasma approach used in this study presented a successful performance in terms of removal efficiency along with acceptable energy yield compared to other plasma-assisted processes reported in the literature. The results suggested that ozone-assisted indirect plasma treatment can be utilized as an efficient alternative method for formaldehyde removal in commercial kitchens, while efficiency or energy yield should be prioritized for optimizing operating conditions.</p></div>","PeriodicalId":628,"journal":{"name":"Journal of Environmental Health Science and Engineering","volume":"21 2","pages":"475 - 484"},"PeriodicalIF":3.4,"publicationDate":"2023-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40201-023-00873-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47284924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Bioaugmentation and phytoremediation wastewater treatment process as a viable alternative for pesticides removal: case of pentachlorophenol","authors":"Rim Werheni Ammeri, Soulwene Kouki, Wafa Hassen, Maroua Oueslati, Najla Sadfi-Zouaoui, Abdennaceur Hassen","doi":"10.1007/s40201-023-00865-y","DOIUrl":"10.1007/s40201-023-00865-y","url":null,"abstract":"<div><p>This study focused on the potential for pentachlorophenol removal by a biological process in secondary treated wastewater (STWW). The proposed process is a combined method of phytoremediation using a native plant, Polypogon maritimus and Lemna minor, and bioaugmentation using a fungus. The bioaugmentation process was performed by a fungal isolate capable of removing PCP, isolated from the compost. The identification of the fungus was performed by morphological, biochemical, and molecular methods. A biological treatment system by bioaugmentation and phytoremediation was set up to estimate the capacity of this process to eliminate a high concentration of PCP. physico-chemical parameters, such as pH, COD, and BOD were tested at experimentation times T0 (initial) and Tf (final). The concentration of PCP is controlled by the HPLC method. Thus, the growth of the fungus was determined by spectrophotometry and enumeration on the agar medium. The results obtained show that the isolated and selected fungus is identified by <i>Penicillium Ilerdanum</i>. The fungal strain used has a significant capacity for tolerance and elimination of PCP. The results of the physico-chemical parameters showed an improvement in the quality of wastewater after the treatment was carried out. The elimination of PCP came with a release of Common law- and an important decrease in the DOC value in the STWW. The results obtained show that the Polypogon treatment shows a significant elimination of PCP by a percentage of the order of 92.01% and 23.58 g. L<sup>− 1</sup> chloride concentration. The macrophytes used showed a better ability to tolerate and eliminate PCP with an increase of chlorophyll and its longer sheets.</p></div>","PeriodicalId":628,"journal":{"name":"Journal of Environmental Health Science and Engineering","volume":"21 2","pages":"373 - 387"},"PeriodicalIF":3.4,"publicationDate":"2023-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40201-023-00865-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47882253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Kinetic coefficients of cell growth and removal of organic substances for modeling Anaerobic-anoxic-aerobic method","authors":"Mojtaba Darzi Daronkola, Bahman Ramavandi, Seyed Enayat Hashemi, Fazel Amiri, Amir Hossein Mahvi","doi":"10.1007/s40201-023-00871-0","DOIUrl":"10.1007/s40201-023-00871-0","url":null,"abstract":"<div><h2>Abstract\u0000</h2><div><h3>Purpose</h3><p>Anaerobic-anoxic-aerobic process is one of the biological removal processes of nutrients in wastewater treatment. Phosphorus removal by biological method is a new and developed technique that is done by changing the design of suspended growth systems.</p><h3>Methods</h3><p>This is a cross-sectional descriptive study, which is a pilot workshop based in the first module, and chemistry, physics and microbiological tests were carried out at the wastewater treatment plant laboratory in one of the cities (Pardis) of Tehran province in 2020–2021 during a period of 12 months. Was completed. In this research, a total of 500 samples were taken from raw wastewater, aeration pond, effluent, secondary sedimentation and return activated sludge.</p><h3>Results</h3><p>In this research, the internal decay coefficient and the growth efficiency coefficient are equal to d<sup>−1</sup> 0.1264 and 0.6579 gVSS/gCOD, respectively. And the maximum specific rate of consumption of food substance and the semi-saturation constant of food substance respectively were gCOD/gVSS.d 3.3467 gCOD/m 25.305. If the specific rate of consumption of food substance or efficiency factor in our research is 0.27 gCOD/gVSS.d and the semi-constant Ks saturation equal to 27.9 gCOD/m has been obtained, this actually shows that the organic matter (COD) in the waste water of Pardis city had a higher degradability (sbCOD).</p><h3>Conclusion</h3><p>According to the obtained results, the synthetic coefficients in the Lineweaver–Burk and Hanes models are suitable, but in the Hofstee model, the amount of K and K<sub>d</sub> is less than the optimal amount for the proper exploitation of the pilot.</p></div></div>","PeriodicalId":628,"journal":{"name":"Journal of Environmental Health Science and Engineering","volume":"21 2","pages":"455 - 462"},"PeriodicalIF":3.4,"publicationDate":"2023-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40201-023-00871-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43073580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Labrag, M. Abbadi, M. Hnini, C. El Bekkali, A. Bouziani, D. Robert, J. Aurag, A. Laghzizil, J.-M. Nunzi
{"title":"Antibiotic photocatalysis and antimicrobial activity of low-cost multifunctional Fe3O4@HAp nanocomposites","authors":"J. Labrag, M. Abbadi, M. Hnini, C. El Bekkali, A. Bouziani, D. Robert, J. Aurag, A. Laghzizil, J.-M. Nunzi","doi":"10.1007/s40201-023-00869-8","DOIUrl":"10.1007/s40201-023-00869-8","url":null,"abstract":"<div><p>Water contamination by multiple pollutants is a serious environmental issue originating from the many diverse sources of pollution. It has worsened with the appearance of new contaminants, named emerging micropollutants, such as drug residues which are considered a potential threat to human health and/or ecosystems. These require prior treatment before release into the environment. Simultaneous adsorption and photocatalysis as well as solid-liquid separation are promising technologies for water treatment. In order to obtain low cost photoactive nanocomposites, porous and magnetic Fe<sub>3</sub>O<sub>4</sub>-hydroxyapatite (wFeHAp) nanocomposites were prepared by soft chemistry from the dissociation of natural phosphate into Ca<sup>2+</sup> and H<sub>3</sub>PO<sub>4</sub> precursors, further neutralized by ammonia in the presence of preformed Fe<sub>3</sub>O<sub>4</sub> particles. The magnetic nanocomposites were characterized and examined as effective antibacterial agents. Fe<sub>3</sub>O<sub>4</sub> association with apatite modifies the surface properties of the wFeHAp nanocomposite materials, yielding efficient antimicrobial activity for S. aureus, B. subtilis, E. coli and K. pneumoniae strains. The photocatalytic removal of ciprofloxacin (CPF) and oxytetracyclin (OXT) antibiotics in water was also evaluated. The wFeHAp nanocomposites adsorbed and degraded the selected antibiotics successfully. Toxicity evaluation of the treated water after photodegradation using the four strains demonstrates the absence of toxic by-products at the end of the reaction. Therefore, Fe<sub>3</sub>O<sub>4</sub>@HAp nanoparticles are valuable for antimicrobial and photocatalysis applications.</p></div>","PeriodicalId":628,"journal":{"name":"Journal of Environmental Health Science and Engineering","volume":"21 2","pages":"429 - 440"},"PeriodicalIF":3.4,"publicationDate":"2023-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40201-023-00869-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42331869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Wafa Sassi, Radhia Msaadi, Najeh Ardhaoui, Salah Ammar, Ayman Nafady
{"title":"Selective/simultaneous batch adsorption of binary textile dyes using amorphous perlite powder: aspects of central composite design optimization and mechanisms","authors":"Wafa Sassi, Radhia Msaadi, Najeh Ardhaoui, Salah Ammar, Ayman Nafady","doi":"10.1007/s40201-023-00870-1","DOIUrl":"10.1007/s40201-023-00870-1","url":null,"abstract":"<div><h2>Abstract\u0000</h2><div><p>Herein, the selectivity/simultaneously adsorption associated with Congo Red (CR) and Methylene Blue (MB) has been efficiently undertaken via amorphous perlite. Under optimum conditions of 38 min, 96 mg/L and 312°K for the contact time, the dye concentration, and the temperature, respectively, the optimization study using central composite design (CCD) matrix gave rise to high adsorption yields of 82.22 and 96.65% for CR and MB, respectively. Importantly, kinetic and isotherm studies attested that the batch adsorption occurs as intra-diffusional mass transport onto porous material. The obtained thermodynamic parameters are indicative of an endothermic/spontaneous physisorption process. Whereas SEM–EDS characterization revealed the superficial adsorption process of both CR and MB onto perlite. In addition, the FTIR analysis suggests that the adsorption process disrupted the short-range compounds order of perlite samples, revealing the marked crystallinity decrease of the adsorbent after adsorption. Finally, application of these optimum conditions tests on real industrial wastewater show that the adsorption was simultaneous at neutral pH and at 312°K, whereas CR and MB can be selectively adsorbed at pH 4 and 9, respectively.</p><h3>Graphical abstract</h3>\u0000 <div><figure><div><div><picture><source><img></source></picture></div></div></figure></div>\u0000 </div></div>","PeriodicalId":628,"journal":{"name":"Journal of Environmental Health Science and Engineering","volume":"21 2","pages":"441 - 454"},"PeriodicalIF":3.4,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40201-023-00870-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42961056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bhagvan P. Kamaliya, Pragnesh N. Dave, Lakha V. Chopda
{"title":"Synthesis of GG-g-P(NIPAM-co-AA)/GO and evaluation of adsorption activity for the diclofenac and metformin","authors":"Bhagvan P. Kamaliya, Pragnesh N. Dave, Lakha V. Chopda","doi":"10.1007/s40201-023-00867-w","DOIUrl":"10.1007/s40201-023-00867-w","url":null,"abstract":"<div><p>The grafting of biopolymer gum ghatti (GG) over the PNIPAM and PAA was done and loaded with graphene oxide (GO). Aim of this work is carried out combine adsorption of sodium diclofenac (SD) and metformin (MF) by the prepared hydrogels under influence of various parameters. The adsorbent GG-<i>g-</i>P(NIPAM-<i>co</i>-PAA)/GO(3 mg) chosen for adsorption activity as it displayed highest swelling capacity. The effect of amount of both adsorbents GG-<i>g-</i>P(NIPAM-<i>co</i>-PAA and GG-<i>g-</i>P(NIPAM-<i>co</i>-PAA)/GO(3 mg) showed that highest adsorption capacity found at 40 mg of adsorbents for both drugs at conditions: 100 mg/L concentration, 30 °C, 24 h and pH 6 and subsequently became stable. Both the drugs were removed in greater amount at 25 mg/L concentration, 24 h of contact time, 30 °C, 40 mg amount of both adsorbents and pH 6. Effect of time revealed that as time elevated from 2 h to 12 (100 mg/L concentration,, 30 °C, 40 mg amount of both adsorbents and pH 6) led to increase adsorption efficiency and after that increase time did not much impact on adsorption activity. Adsorption activity of hydrogels declined with increase of temperature (100 mg/L concentration, 12 h, 40 mg amount of both adsorbents and pH 6). The acidic conditions favored adsorption of SD while MF adsorbed under the weak acidic(100 mg/L concentration, 30 °C, 12 h, 40 mg amount of both adsorbents). However, basic conditions did not much influence on adsorption of MF but effected on adsorption activity of SD. Adsorption isotherm and kinetic model suggested that adsorption is homogenous and chemical in nature. The maximum adsorption capacity (q<sub>m</sub>) found to be 289.01 and 154.55 mg/g for SD and MF respectively.</p><h3>Graphical abstract</h3>\u0000 <div><figure><div><div><picture><source><img></source></picture></div></div></figure></div>\u0000 </div>","PeriodicalId":628,"journal":{"name":"Journal of Environmental Health Science and Engineering","volume":"21 2","pages":"403 - 416"},"PeriodicalIF":3.4,"publicationDate":"2023-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40201-023-00867-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47911049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A comparison of endosulfan removal by photocatalysis process under UV-A and visible light irradiation: optimization, degradation byproducts and reuse","authors":"Mehmet Turkyilmaz, Sezen Kucukcongar","doi":"10.1007/s40201-023-00864-z","DOIUrl":"10.1007/s40201-023-00864-z","url":null,"abstract":"<div><p>In this study, the removal efficiency of endosulfan as a persistent organic pollutant and formation of its metabolites were investigated using Ag/TiO<sub>2</sub>/Fe<sub>3</sub>O<sub>4</sub> photocatalyst under visible and UV-A light. Light intensity, catalyst amount, initial endosulfan concentration, initial pH and time were determined as controllable factors for Taguchi experimental design. The highest removal efficiencies of endosulfan were achieved as 86.14% and 85.46% for visible and UV–A light sources, respectively. According to the greatest best criterion, the level at which the highest S/N ratio was obtained for each parameter was accepted as the optimum value. As a result of the validation experiments, 94.2% and 91.9% efficiency were obtained for visible and UV-A light, respectively. The metabolite formations of endosulfan (endosulfan sulfate, ether, and lactone) remained below 7% in all experiments on a concentration basis. In the reuse experiments of the magnetically recovered photocatalyst, high removal efficiency of around 80% was obtained after four cycles. The removal efficiencies were found to be 86.7% and 84.8%, for real samples taken from the drinking water treatment plant inlet and the spring water network injected with endosulfan under optimal photocatalysis experimental conditions, respectively. It has been shown that nitrate and sulfate anions, which are in significant concentrations in raw water samples, have very little effects on endosulfan removal. The overall results showed that the Ag/TiO<sub>2</sub>/Fe<sub>3</sub>O<sub>4</sub> photocatalyst was produced successfully, the catalyst was highly effective in the mineralization of endosulfan in synthetic and real water samples under UV and visible light, and effective yields could be obtained even with reuse.</p></div>","PeriodicalId":628,"journal":{"name":"Journal of Environmental Health Science and Engineering","volume":"21 2","pages":"355 - 371"},"PeriodicalIF":3.4,"publicationDate":"2023-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40201-023-00864-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49694858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Samaneh Ghaderi, Roxana Taleb Lahafchi, Sona Jamshidi
{"title":"Performance evaluation of PdO/ CuO TiO2 photocatalytic membrane on ceramic support for removing pharmaceutical compounds from water","authors":"Samaneh Ghaderi, Roxana Taleb Lahafchi, Sona Jamshidi","doi":"10.1007/s40201-023-00866-x","DOIUrl":"10.1007/s40201-023-00866-x","url":null,"abstract":"<div><p>This study investigated photocatalytic degradation of pharmaceutical compound using CuO or PdO–TiO<sub>2</sub> membrane. The synthesized membranes were characterized by some techniques including X-ray powder diffraction (XRD), dynamic light scattering (DLS), scanning electron microscopy (SEM), and Fourier-transform infrared spectroscopy (FT-IR). The structural properties confirmed that the photocatalytic membranes were successfully prepared on ceramic supports. The PdO-TiO<sub>2</sub> and CuO-TiO<sub>2</sub> membranes were employed as photocatalytic membranes to degrade metronidazole (MNZ) and diphenhydramine (DPH) in aqueous solutions, respectively. Some parameters affecting the photocatalytic reaction such as pH, initial concentration, and light source were also investigated. The maximum degradation for both pharmaceutical compounds was obtained at basic pH (pH = 10), low initial concentration (C<sub>0</sub> = 10 ppm) under UV irradiation. At high transmembrane pressure (ΔP = 3 bar), the flow rate across the membrane increased up 0.0078 and 0.0082 cc/s.cm<sup>2</sup> for CuO-TiO<sub>2</sub> and PdO-TiO<sub>2</sub> photocatalytic membrane respectively while not affected on degradation efficiency (DE). At the same condition operation (C<sub>0</sub> = 10 ppm, pH = 10, ΔP = 2 bar under UV irradiation), the MNZ and DPH degradation of the PdO-TiO<sub>2</sub> membrane was 94 and 95% respectively that relatively higher than the CuO-TiO<sub>2</sub> membrane. It is probably due to the lower energy band gap of PdO-TiO<sub>2</sub> (2.5 eV) than CuO-TiO<sub>2</sub> (2.7 eV). The membrane stability tests confirmed the high performance of the prepared membranes.\u0000</p></div>","PeriodicalId":628,"journal":{"name":"Journal of Environmental Health Science and Engineering","volume":"21 2","pages":"389 - 401"},"PeriodicalIF":3.4,"publicationDate":"2023-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40201-023-00866-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46986003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}