Article
Engineering, Environmental
Basak Temur Ergan, Ebubekir Siddik Aydin, Erhan Gengec
Summary: In this study, catalytically efficient biochar electrodes were obtained through thermal modification from waste biomass. The optimized conditions resulted in a reduction of treatment cost by 34.9% and 8.64% compared to other electrodes, while significantly improving dye and TOC removal efficiency.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Environmental Sciences
Khashayar Moazeni, Mehrdad Mirzaei, Majid Baghdadi, Ali Torabian
Summary: This study investigates the use of separated and integrated EC/PEF mode for treating textile industry wastewater and compares their results. The optimized electrocoagulation process achieved a COD removal rate of 96% and a TSS removal rate of 70%. The subsequent photo electro-Fenton process further reduced the COD concentration by 85%.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Green & Sustainable Science & Technology
Lingke Miao, Junfeng Li, Lijuan Yi, Wenying Qu, Chengxiao Ma, Xueting Feng, Ying Xu, Ruining He
Summary: Nickel converter slag can be used as a superior catalyst for the treatment of textile dyeing wastewater. The catalyst shows high efficiency in the removal of methylene blue and chemical oxygen demand under optimal operating parameters. Additionally, the catalyst also exhibits excellent effects in different wastewater treatments.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Sciences
Nguyen Minh Viet, Pham Thi Thu Hoai, Nguyen Thi Mai Huong
Summary: In this study, porous biochar (PBC) was prepared by acid activation of biochar derived from food waste (FWBC) for the removal of 4-chlorophenol (CP) in wastewater. The characteristics of PBC were developed after the acid activation process. PBC showed a higher removal efficiency for CP compared to FWBC. The adsorption kinetics and isotherms of CP were determined using the second-order and Langmuir models, respectively. The maximum capacities for CP uptake onto FWBC and PBC were also calculated. PBC demonstrated good adsorption efficiency and reusability for CP removal in wastewater.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Environmental
Jandira Leichtweis, Siara Silvestri, Nicoly Welter, Yasmin Vieira, Paloma Zaragoza-Sanchez, Alma C. Chavez-Mejia, Elvis Carissimi
Summary: A novel green composite catalyst prepared by doping CuFe2O4 nanoparticles in malt bagasse biochar exhibited enhanced adsorption and photocatalytic performance. The performance of the composite catalyst varied with different ratios of malt biochar and CuFe2O4, with CFO1B3 showing the highest photocatalytic activity and recyclability.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Green & Sustainable Science & Technology
Yonghui Xing, Xuesong Luo, Song Liu, Wenjie Wan, Qiaoyun Huang, Wenli Chen
Summary: The study proposes a new method to prepare an efficient adsorbent using food waste, which can remove heavy metals in wastewater and provide a promising strategy for environmental protection.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Engineering, Environmental
Heejin Yang, Jin-Kyu Kang, Seong-Jik Park, Chang-Gu Lee
Summary: Converting food waste into biochar can be used as a coagulation aid for wastewater treatment, improving pH levels and copper coagulation, as well as enhancing sludge dewaterability and organic dye removal. The combination of biochar and polyaluminum chloride can effectively treat industrial wastewater with various heavy metals.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Chemistry, Physical
Zhuoying Cheng, Suyue Luo, Xiaojuan Li, Shuo Zhang, Tat Thang Nguyen, Minghui Guo, Xing Gao
Summary: A MnFe2O4/BC nanocomposite was synthesized using biochar as the carrier, and a heterogeneous Fenton-like process was applied to degrade methylene blue. The catalyst showed enhanced efficiency due to the synergistic effect of ultrasound and MnFe2O4/BC, improving degradation and mineralization levels of MB. This study suggests the potential of MnFe2O4/BC as a highly efficient and low-cost catalyst for ultrasound-assisted heterogeneous Fenton-like systems.
APPLIED SURFACE SCIENCE
(2021)
Article
Environmental Sciences
Chao Zhang, Rui Yang, Meichen Sun, Shicheng Zhang, Mingjing He, Daniel C. W. Tsang, Gang Luo
Summary: The study showed that biochar produced under different conditions could enhance the anaerobic digestion of food waste and the surface characteristics of biochar and changes in microbial communities were key factors affecting the enhancement.
Review
Environmental Sciences
Shubham Sutar, Prasanna Patil, Jyoti Jadhav
Summary: This research summarizes the potential of biochar technology in adsorption and degradation of organic pollutants. Biochar has various advantages such as diverse raw materials, low cost, and reusability. The study discusses the adsorption variables, regeneration techniques, engineering applications, limitations, and future development prospects of biochar.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Susmita Kar, Bhaskar Santra, Sunil Kumar, Sourja Ghosh, Swachchha Majumdar
Summary: This study developed a surface engineered biochar from post-industrial cotton textile waste through phosphoric acid impregnation. The biochar showed a high specific surface area and adsorption capacity for dye pollutants. The study demonstrated the excellent adsorption capability of the biochar and its effective recycling ability.
ENVIRONMENTAL POLLUTION
(2022)
Article
Engineering, Environmental
Sie Alain Hien, Clement Trellu, Nihal Oturan, Alain Stephane Assemian, Bi Gouesse Henri Briton, Patrick Drogui, Kopoin Adouby, Mehmet A. Oturan
Summary: This study investigated the effects of different treatment methods on textile industry wastewater and found that combining EF with a BDD anode can efficiently remove TOC in a short period of time, while AO is more effective in controlling the formation of degradation by-products. A trade-off between TOC removal and the formation of toxic by-products should be considered during the treatment process.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Sie Alain Hien, Clement Trellu, Nihal Oturan, Alain Stephane Assemian, Bi Gouesse Henri Briton, Patrick Drogui, Kopoin Adouby, Mehmet A. Oturan
Summary: This study compared the generation of oxidants in a heterogeneous way and a homogeneous way for the treatment of textile industry wastewater. Both approaches achieved high TOC removal, with the electro-Fenton process being faster and more efficient for effluent discoloration, and the anodic oxidation process more effective in limiting the formation of degradation by-products. An advantage of anodic oxidation was its ability to treat alkaline effluent without pH adjustment. However, using a boron-doped diamond anode led to high concentrations of ClO3-/ClO4- formation, which poses a challenge for effluent treatment. By comparison, the electro-Fenton process with a Pt anode significantly reduced the formation of ClO3-/ClO4-. Further research is needed to find a balance between TOC removal and the formation of toxic chlorinated by-products.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Thays de Oliveira Guidolin, Kelvin Goularte dos Santos, Oscar Rubem Klegues Montedo, Fabiano Raupp Pereira, Sabrina Arcaro, Maria Alice P. Cechinel
Summary: This study investigated the use of pyritic waste as a catalyst for the discoloration of textile effluents. The particle size and pre-treatment of the catalyst were found to affect the efficiency of the discoloration process. The results showed that the catalyst concentration, H2O2 concentration, and reaction time were important factors in achieving optimal discoloration. The study also revealed the stability of the catalyst and its potential environmental benefits.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Shazia Perveen, Raziya Nadeem, Farhat Nosheen, Muhammad Imran Asjad, Jan Awrejcewicz, Tauseef Anwar
Summary: In this study, biochar-mediated zirconium ferrite nanocomposites were successfully developed for the removal of dyes from textile wastewater. The nanocomposites exhibited high adsorption efficiency and showed potential for practical engineering applications.
Article
Environmental Sciences
Kang-hee Cho, Sung-hun Jung, Min-sun Choi, Yong-jin Jung, Chang-Gu Lee, Nag-choul Choi
Summary: Sweat discharged during sauna sessions, specifically using a water-filtered infrared-A (wIRA) sauna, contains higher amounts of inorganic ions, including both toxic and nutrient elements. Females have higher concentrations of toxic elements in sweat compared to males. Correlation analysis shows a relationship between the discharge of toxic elements, such as arsenic, beryllium, cadmium, and nickel, and the discharge of selenium and vanadium. Nickel is only correlated with manganese. This study provides important information for supplementing nutritional elements during detoxification using wIRA sauna.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Soeun Moon, Jin Ryu, Jongkook Hwang, Chang-Gu Lee
Summary: Ordered mesoporous carbons (OMCs) with controlled mesopore lengths and volumes were synthesized and investigated for the removal of methylene blue (MB) dye from aqueous solutions. The OMCs exhibited narrow pore size distributions and decreased pore lengths, resulting in improved accessibility and utilization of internal mesopores. The adsorption of MB on the prepared OMCs followed pseudo-second-order kinetics and was significantly faster compared to commercial activated carbon. Langmuir adsorption isotherm described the equilibrium adsorption data, and the adsorption capacity of OMCs was proportional to their specific surface area. The adsorption of MB on OMCs was endothermic, spontaneous, and involved physical and chemisorption processes.
Article
Environmental Sciences
J. -k. Kang, B. N. Pham, C. -g. Lee, S. -j. Park
Summary: This study used different macroalgae as biosorbents to remove heavy metals. Costaria costata showed the best biosorbent activity and had various functional groups in its cell wall structure. The modification of Costaria costata was ineffective in improving its biosorption capacity. The adsorption of heavy metals onto Costaria costata occurred via covalent bonding, and heavy metal removal was enhanced with increasing initial solution pH. Among competing cations, Al3+ had the greatest inhibitory effect. The dried biomass of Costaria costata could potentially eliminate heavy metals from aqueous solutions due to its high efficiency, easy acquisition, low cost, and easy preparation.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Environmental Sciences
Sungmoon Yoon, Kang-Hee Cho, Minsung Kim, Seong-Jik Park, Chang-Gu Lee, Nag-Choul Choi
Summary: In this study, a low-cost functional ceramic membrane (LFCM) based on waste cast iron (WCI) was fabricated and found to efficiently remove selenium from aqueous solutions. The raw WCI exhibited the highest selenium removal capacity among the prepared materials, with a faster and more efficient removal of Se(IV) compared to Se(VI). The synthesized LFCM showed similar selenium removal properties to WCI and could simultaneously remove Se(IV) and turbidity-causing substances through filtration. These findings are valuable for the development of ceramic membranes using industrial byproducts for wastewater treatment.
Article
Environmental Sciences
Seung-Hee Hong, Soonho Hwang, Chang-Gu Lee, Seong-Jik Park
Summary: Aluminum- and iron-impregnated food waste biochar (Al-FWBC and Fe-FWBC) were used to remediate dredged sediments contaminated with arsenic (As). The amendments of Al-FWBC and Fe-FWBC reduced the non-specifically and specifically sorbed fractions of arsenic, and increased the residual fraction. Stabilization/solidification treatment using Al-FWBC and Fe-FWBC effectively reduced the ecological risk of arsenic and other heavy metals in the sediments.
JOURNAL OF SOILS AND SEDIMENTS
(2023)
Editorial Material
Chemistry, Multidisciplinary
Chang-Gu Lee, Seong-Jik Park, Eun Hea Jho
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Multidisciplinary
Kang-Hee Cho, Hyun-Soo Kim, Chang-Gu Lee, Seong-Jik Park, Nag-Choul Choi
Summary: This study compared and evaluated the bioleaching properties of indigenous acidophilic bacteria for various sulfide minerals in terms of pH reduction and metal leaching. It was found that the leaching rate and metal concentration differed depending on the mineral content. These findings can contribute to process optimization in bioleaching for metal extraction.
APPLIED SCIENCES-BASEL
(2023)
Article
Engineering, Environmental
Heejin Yang, Junghee Joo, Eunmi Hong, Seong-Jik Park, Jechan Lee, Chang-Gu Lee
Summary: Extracting value from organic waste, such as chicken litter, for the production of high-end products is an important disposal strategy for the future. In this study, chicken litter was used to produce a catalyst for wastewater treatment applications. The catalyst derived from untreated chicken litter showed the highest efficiency in removing acetaminophen (ACP).
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Youn-Jun Lee, Yoo Jae Jeong, In Sun Cho, Chang-Gu Lee, Seong-Jik Park, Pedro J. J. Alvarez
Summary: In this study, the inhibitory effects of humic acids (HA) on the photocatalytic activity of TiO2 were investigated. The results showed that HA strongly hindered the activity of anatase, but had less effect on rutile and even improved its activity. The study also revealed that the inhibitory effects of HA were due to the different reactive oxygen species (ROS) generation mechanisms for the two polymorphs.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Dohee Kwon, Dongho Choi, Sungyup Jung, Wei-Hsin Chen, Yiu Fai Tsang, Seong-Jik Park, In-Hyun Nam, Eilhann E. Kwon
Summary: One of the most prevalent wastes in the ocean is abandoned, lost, and discarded fishing gears (ALDFGs), which poses a potential mortality risk to all marine creatures. Thermal destruction of ALDFGs, using carbon dioxide as a raw material, can effectively break them down into smaller molecules and neutralize toxic chemicals. Experimental evidence showed that CO2 contributed significantly to the conversion of carbon in hydrocarbons into carbon monoxide (CO).
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Eun-Ji Cho, Jin-Kyu Kang, Chang-Gu Lee, Sungjun Bae, Seong-Jik Park
Summary: In this study, Fenton sludge was used as an efficient adsorbent to remove Cd from zinc smelter wastewater. Thermal activation was employed to enhance the Cd adsorption capacity, and the highest adsorption was achieved at 900 degrees C. The use of Fenton sludge, specifically TA-FS-900, could effectively remove Cd from industrial wastewater and comply with environmental standards.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Jae-In Lee, Chuluuntsetseg Jadamba, Soo-Cheul Yoo, Chang-Gu Lee, Seong-Jik Park
Summary: This study explores ways to improve water quality and provide a sustainable supply of phosphorus (P) into soil by circulating the flow of P from water to soil. Bottom ash (BA_CCM), a byproduct of cattle manure combustion, was used to remove P in wastewater. The P-captured BA_CCM was then used as P fertilizer for rice growth.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Engineering, Multidisciplinary
Youn-Jun Lee, Chae-Young Son, Chang-Gu Lee, Yoo Jae Jeong, In Sun Cho, Seong-Jik Park, Jechan Lee
Summary: In this study, mandarin peel extract (ME) was used as a natural sacrificing agent to enhance the photocatalytic Cr(VI) removal performance. The use of ME increased the Cr(VI) reduction rate (0.0286 min-1), and a Cr(VI) removal efficiency of 99.1% was achieved within 150 min. Hole scavenging by antioxidants contained in ME on TiO2 surface contributed to the enhancement of the photocatalytic Cr(VI) removal.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Heejin Yang, Youn-Jun Lee, Seong-Jik Park, Chang-Gu Lee
Summary: This study explores the feasibility of using a floating photocatalyst in a continuous stirred tank reactor (CSTR) system for continuous water treatment. The results show that the CSTR system is more effective in removing the water pollutant methylene blue (MB) compared to the batch system, and the EPS-TiO2/UV system with a CSTR configuration efficiently utilizes light and energy.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Francisco de Borja Ojembarrena, Elena Fuente, Angeles Blanco, Carlos Negro
Summary: Accumulation of Cr(VI) in industrial fiber cement process water can affect product quality and health, and it needs to be removed to avoid environmental risks. The study found that cationic cellulose nanocrystals (CCNCs) have higher adsorption efficiency and lower cost compared to conventional adsorbents.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Review
Engineering, Environmental
Shentan Liu, Yangchen Zhang, Xiaojuan Feng, Sang-Hyun Pyo
Summary: This paper summarizes the common problems of constructed wetlands (CWs) and proposes corresponding optimized solutions, including thermal insulation and additional aeration in cold climates, choosing suitable plant species and planting patterns to enhance phytoremediation in CWs, using various methods to monitor and evaluate CW clogging, implementing anti-clogging measures, controlling greenhouse gas emissions during CW treatment, constructing and utilizing CW databases, designing appropriate CW types, and implementing strict technical management and supervision.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Norzila Mohd, Nazlina Haiza Mohd Yasin, Wan Hasnidah Wan Osman, Mohd Sobri Takriff
Summary: This study demonstrates that Chlamydomonas sp. is effective in removing nutrients from palm oil mill effluent and shows particular efficiency in the removal of ammonium and phosphate.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Mingzhen Zhang, Guijian Liu, Ruijia Liu, Jinzhao Xu, Wen Si, Yong Wei
Summary: Tieguanyin tea stem was used to synthesize modified biochar for the adsorption of copper and zinc. Among the modified biochar, Fe-BCs had the highest adsorption capacity, with Fe-BC650 being the best adsorbent. It reached adsorption equilibrium in 1 minute and had a maximum adsorption capacity of 303.5996 mg/g for Cu (II) and 254.0711 mg/g for Zn (II) in single-metal solutions. However, there were antagonistic impacts between Cu2+ and Zn2+.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Lingling Zhao, Qiaoshu Zhou, Yun Yang, Yuan Zhang, Yewei Qiu, Yanjun Chen, Xian Jin, Xiangjun Yang, Shixiong Wang
Summary: This research presents a method for selectively recovering gold from e-waste water using metal sulfides microspheres prepared by hydrothermal technique. The results show that the assistance of visible light significantly improves the gold adsorption performance of metal sulfides. The metal sulfides exhibit excellent gold adsorption properties, high selectivity, ultra-high adsorption capacity, and good recyclability.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Laishram Saya, W. Rameshwor Singh, Sunita Hooda
Summary: Organic-inorganic nanoblends, such as polysaccharide-blended-inorganic ones, have versatile applications and have gained significant research attention. In this study, a magnetic guar gum/graphene oxide nanocomposite blended with CuO was successfully prepared and investigated for its adsorption capacity for ciprofloxacin removal. The results showed that the nanocomposite exhibited excellent adsorption capacity and the adsorption process was spontaneous.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Umit Ecer, Sakir Yilmaz
Summary: A novel and effective catalyst Co@MIL-68(Fe)@Fe3O4@CM-BC was synthesized and used for the catalytic reduction of crystal violet in aqueous environments. The catalyst showed high efficiency in degrading crystal violet under specific conditions, and exhibited good regeneration performance.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Chi Zhang, Miao Zhang, Haohan Yang, Wei Cai, Jun Wu
Summary: Enhancing the bioaugmentation of common nitrifiers in the partial nitrification/anammox process can decrease the activity of nitrite oxidizing bacteria and increase the activity of anammox bacteria, leading to improved total nitrogen removal efficiency.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Runzhang Zuo, Dajun Ren, Yangfan Deng, Canhui Song, Yubin Yu, Xiejuan Lu, Feixiang Zan, Xiaohui Wu
Summary: This study found that fine bubble aeration in membrane bioreactors (MBR) can better control membrane fouling and reduce energy consumption. However, compared to fine bubble aeration, coarse bubble aeration released more proteins and polysaccharides, resulting in a decrease in functional bacteria and enzymes involved in nitrogen and phosphorus pathways.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Ch Tahir Mehmood, Jiekai Dai, Hanjun Zhao, Ziyi Zhong
Summary: Wirelessly powered photocatalyst-coated spheres (WPS) have been developed and demonstrated for various applications, including photodegradation and fouling control. These WPS are cost-effective, easy to fabricate, and have excellent visible light sources, making them suitable as carriers for photocatalysts.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Yifan Wang, Xiaoxuan Kang, Yuting Li, Ruyi Li, Chang Wu, Luyao Wang, Chongqing Wang, Tao Yang, Ming Ge, Zhangxing He
Summary: Cobalt/carbon nanofibers (Co/CNF) were prepared and exhibited excellent catalytic activity in the degradation of tetracycline by activating peroxodisulfate (PDS). The effects of process parameters on tetracycline removal were studied, and the reaction mechanism was confirmed through experiments.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Ting Wei, Yaqian Zhao, Jia Guo, Bin Ji, Alvaro Pun Garcia, Abraham Esteve Nunez
Summary: This study developed a novel lightweight substrate (Al-NLS) composed of aluminum sludge and polyurethane, and investigated its effectiveness in constructed wetlands (CWs). Results showed that Al-NLS had favorable adsorption capacities for phosphorus and removal efficiencies for pollutants in real domestic wastewater. It also positively influenced the microbial community. Therefore, Al-NLS can be considered as a new alternative substrate in CWs technology.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Dabojani Das, Achinta Bordoloi, Heyang Yuan, Daniel J. Caldwell, Rominder P. S. Suri
Summary: This study evaluates the degradation kinetics of antibiotic resistance genes and mobile genetic elements in water matrices by ozone treatment. The results show that extracellular antibiotic resistance genes can be effectively removed, while intracellular genes are more resistant to degradation. The impact of wastewater matrix on gene degradation is minimal.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
