Article
Green & Sustainable Science & Technology
Dafne Crutchik, Oscar Franchi, David Jeison, Gladys Vidal, Alicia Pinto, Alba Pedrouso, Jose Luis Campos
Summary: Small wastewater treatment plants in Chile are often not designed to consider the potential utilization of generated sludge. By implementing a sludge-ozonation system, the treatment costs can be reduced by up to 47%.
Article
Chemistry, Physical
Katarzyna Pazdzior, Marlena Dominska, Magdalena Olak-Kucharczyk
Summary: Ozonation treatment can enhance biogas production from surplus activated sludge by increasing production efficiency and methane content. The elemental composition and chemical structure of sludge were not affected by ozonation, but hydrolysis of organic compounds from sludge contributed to the improvement of biogas production.
Article
Environmental Sciences
Tengfei Li, Yanhui Fan, Hu Li, Zhiyin Ren, Liqing Kou, Xuetao Guo, Hanzhong Jia, Tiecheng Wang, Lingyan Zhu
Summary: Efficient sludge reduction was achieved by discharge plasma oxidation in this study, with approximately 18.22% sludge disintegration and 27.8% reduction of total suspended solids. The generation of reactive oxygen species played a crucial role in sludge disintegration by destroying flocs and promoting the conversion of organic substances, while concurrent cell lysis released intracellular organics and water into the liquid phase.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Wenhao Li, Nanwen Zhu, Yanwen Shen, Haiping Yuan
Summary: Ozone treatment is effective in removing PAHs from waste activated sludge, with removal efficiency increasing with ozone dosage and being highly dependent on pH. The presence of soluble organic compounds, such as proteins and humic substances, can interfere with PAHs degradation during ozonation, highlighting the need for intermittent ozonation for improved removal efficiency.
ENVIRONMENTAL RESEARCH
(2021)
Article
Environmental Sciences
Dehao Yuan, Xu Zhou, Wenbiao Jin, Wei Han, Huizhong Chi, Wanqing Ding, Yan Huang, Zhongqi He, Shuhong Gao, Qilin Wang
Summary: The addition of hydrogen peroxide significantly enhances the release of organic matter and nutrients during ultrasonic treatment of excess sludge. By optimizing the operating conditions, more efficient sludge destruction and reduction can be achieved.
Article
Engineering, Environmental
Baoyan Chi, Ying Huang, Zhenfeng Xiong, Jiali Tan, Weidong Zhou, Zhuo Yang, Kemei Zhou, Xinxin Duan, Ao Chen, Rong Zha, Keting Gui
Summary: In this study, a new sludge reduction technology called LTBC-AAO process was proposed, which combines sludge lysis based on thermophilic bacterial community and the anaerobic-anoxic-oxic process. The LTBC-AAO process showed promising results in reducing sludge and improving COD and TN removal efficiency.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Engineering, Environmental
Nico Lambert, Pieter Van Aken, Ilse Smets, Lise Appels, Raf Dewil
Summary: The integration of ultrasonic sludge disintegration in a conventional biological wastewater treatment plant has been found to reduce sludge production and improve the biodegradability of sludge. Ultrasonic treatment also improves sludge settling characteristics and leads to improved effluent quality.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Yu Zhang, Chengcheng Meng, Yueling He, Xiaonuan Wang, Gang Xue
Summary: The cell lysis-cryptic growth implemented by Fenton oxidation can maximize the release of nutrients and sludge disintegration, reducing sludge discharge in wastewater treatment. This method has minimal impact on organics and nitrogen removal but significantly enhances total phosphorus removal.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Review
Engineering, Environmental
Jie Zhang, Dongyu Xu, Guangming Zhang, Zhijun Ren, Yichun Zhu
Summary: Ultrasonic sludge lysis-cryptic growth is a promising technology for in-situ reduction of excess sludge in biological wastewater treatment processes, with high efficiency, simple operation, and minimal secondary pollution. This comprehensive review covers the mechanisms, influential factors, applications, challenges, and future perspectives of ultrasonic sludge lysis-cryptic growth.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Kurumi Hashimoto, Narumi Kubota, Tetsuji Okuda, Satoshi Nakai, Wataru Nishijima, Hiroshi Motoshige
Summary: Sludge ozonation is a promising technology for reducing waste sludge volume from biological wastewater treatment process. Using ultra-fine bubbles (UFBs) as ozone carriers can improve the efficiency of ozone treatment and reduce the ozone dose required. UFBs reduce the ozone requirement in sludge and contribute to the acceleration of bacterial death in sludge treated with ozone.
Article
Environmental Sciences
Zhiyi Sun, Yuxiang Wang, Xiaoliang Chen, Nanwen Zhu, Haiping Yuan, Ziyang Lou
Summary: The study found that microbubble ozonation (MB-O-3) can improve oxidation efficiency for sludge solubilization, reducing disposal fees and enhancing settleability. However, at low dosages, MB-O-3 may deteriorate sludge dewaterability. The method works by oxidizing organic matters and improving the generation of radicals to reduce sludge mass.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Xiangjuan Sun, Binhan Liu, Lingjun Zhang, Kyohei Aketagawa, Binjie Xue, Yinji Ren, Jianfeng Bai, Yong Zhan, Sisi Chen, Bin Dong
Summary: By comparing the effects of high and low concentration ozone on partial ozonation of returned sludge, it was found that high concentration ozone can more effectively reduce organic matter and excess sludge production, with stronger nutrient removal capacity. While there were no significant differences in the treatment properties of excess sludge, the advantages of high concentration ozone mainly lie in the sludge solubilization rate and impact on carbon source utilization capacity in bioreactors.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Xianbao Wang, Tiantian Chen, Xuefei Qi, Yudi Zhang, Chuyue Gao, Yili Xie, Anlong Zhang
Summary: This study successfully disintegrated primary sludge using a mechanical cutting method to produce soluble organic matter and investigated the mechanism of organic matter release from sludge. Under specific conditions, the release of organic matter from primary sludge reached a maximum, with a significant portion being biodegradable as a carbon source.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Environmental Sciences
Asaad Olabi, Sayiter Yildiz
Summary: The study demonstrated that the combination of ultrasonic process with UV light in Fenton processes plays a crucial role in disintegration of waste sludge, especially in modified Fenton process. Under optimal conditions, the addition of ultrasound significantly improved the degree of disintegration and reduced toxicity.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Green & Sustainable Science & Technology
Tingting Xiao, Xiaohu Dai, Xiankai Wang, Sisi Chen, Bin Dong
Summary: The addition of MnFe2O4@SBC to waste activated sludge significantly improves dewatering performance, with reduced capillary suction time and specific resistance to filtration under optimal conditions. This is achieved by promoting the conversion of ozone into active radicals and enhancing the destruction of organic biopolymers, resulting in improved dewatering efficiency of the sludge.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Environmental Sciences
Mehmet Fatih Dilekoglu
Summary: This study investigates the adsorption of Malachite Green dye substance on sheep manure derived biochar for the first time, demonstrating its effectiveness as a natural and cost-effective adsorbent with a high dye removal capacity of 208.33 mg g(-1). It serves as a guiding study for the conversion of agricultural waste into products with highly added value.
INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
(2022)
Article
Engineering, Environmental
Mehmet Fatih Dilekoglu, Veysel Aslan
Summary: By utilizing GIS and fuzzy Analytical Hierarchy Process, this study investigated the groundwater potential zones in the Ceylanpinar Plain basin in Turkey and classified them into different categories. The results provide crucial estimates and information for regional water administrators and officials to ensure sustainable groundwater management.
Article
Food Science & Technology
Mehmet Sukru Karakus, Filiz Yildiz Akgul, Aziz Korkmaz, Ahmet Ferit Atasoy
Summary: Comparing the fatty acids, free fatty acids, and textural characteristics of butter and sadeyag produced from sheep and cow cream, differences were found in the fatty acid composition, with cow milk products being firmer and less spreadable. Sheep milk products had higher fatty acid content and better spreadability.
INTERNATIONAL DAIRY JOURNAL
(2022)
Article
Chemistry, Physical
Ismail Hilali, Ahmet Akbas, Vehbi Balak, Dursun Akaslan, Kemal Guner
Summary: Thermal control is crucial for the life cycle of metal hydride tanks. We experimentally validate the ideal distance in an optimized metal hydride array and find that simple geometrical arrangements can enhance the efficiency of fuel cellmetal hydride systems.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Civil
Muge Albayrak, Daniel Willi, Sebastien Guillaume
Summary: This study determines the precision and accuracy of the QDaedalus system based on observations at two locations in Switzerland. The precision was found to be 0.1'' through extensive observations, while the accuracy was established through parallel observations and found to be within 0.1''. Notably, a large systematic trend was observed in the N-S DoV data at one of the test stations.
Article
Food Science & Technology
Hamza Alasalvar, Murat Kaya, Serap Berktas, Bulent Basyigit, Mustafa Cam
Summary: This study investigated the extraction of bioactive compounds from lemon peel using pressurised hot water extraction (PHWE). The results showed that PHWE at specific temperature and time conditions could selectively extract eriocitrin and hesperidin, resulting in higher total phenolic content and antioxidant capacities compared to conventional extraction methods.
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Marine
Gokhan Demircan, Mustafa Ozen, Murat Kisa, Abuzer Acikgoz, Yusuf Isiker
Summary: This study investigated the effects of freeze-thaw test on glass fiber-reinforced epoxy composite coatings with nano-gelcoat. The mechanical properties and thermal stability of the coatings were examined through various tests and analyses. Results showed that the addition of nano TiO2 improved water absorption property and preserved mechanical properties. However, the presence of nanoclay reduced the protection property of the pure gelcoat. Statistical analysis confirmed the significance of the experimental results.
Article
Geography, Physical
Yunus Kaya, Halil Ibrahim Senol, Abdurahman Yasin Yigit, Murat Yakar
Summary: Determining car density in parking lots is crucial for executing existing management systems and making precise plans for the future. In this study, high-resolution UAV images and deep learning methods were used to detect cars in parking lots. Two deep learning approaches, YOLOv3 and Mask R-CNN, were tested using the deep learning tool of Esri ArcGIS Pro. The performance of the algorithms was evaluated based on metrics such as recall, F1 score, precision ratio/uncertainty accuracy, and average producer accuracy.
PHOTOGRAMMETRIC ENGINEERING AND REMOTE SENSING
(2023)
Article
Environmental Sciences
Ibrahim Yenigun, Ali Volkan Bilgili, Halil Ibrahim Senol, Abdullah Yenigun
Summary: Underground water resources are vital for mankind, used for drinking water and agricultural irrigation. This study investigates the changes in groundwater quality in the Upper Mesopotamian region, which has a semi-arid climate and important past civilizations. Samples from selected wells in the Mardin Kiziltepe Plain were collected and analyzed for water quality classifications. The results show no non-standard values and will provide important data for future irrigation projects.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Green & Sustainable Science & Technology
Ozlem Demir, Elif Gumus
Summary: In this study, the sludge treatment and electricity generation in microbial fuel cell were investigated based on the high organic content of sludge. The hydrolysis step of anaerobic digestion was accelerated using pre-treatment methods such as Fenton and thermal/alkaline. It was found that the pre-treated sludge in microbial fuel cells showed improved removal efficiencies of chemical oxygen demand and organic matter as compared to raw sludge. The current densities also significantly increased in the pre-treated sludge-fed microbial fuel cells.
ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY
(2023)
Article
Environmental Sciences
Inese Varna, Daniel Willi, Sebastien Guillaume, Muge Albayrak, Ansis Zarins, Mustafa Ozen
Summary: Nowadays, zenith telescope-based digital zenith cameras (DZC) are used to determine precise astrogeodetic deflections of the vertical (DoVs). CODIAC and VESTA, developed by ETH Zurich and University of Latvia respectively, are the most commonly used DZCs. This study conducted simultaneous observations using both CODIAC and VESTA at HEIG-VD in Yverdon-les-Bains, Switzerland, and revealed the precision and agreement between the two DZCs.
Article
Archaeology
Nizar Polat
Summary: This study used unmanned aerial vehicles (UAVs) to investigate ancient water collection and storage systems near the Karahantepe Neolithic Site. The use of digital elevation models (DEMs) allowed for the examination of cisterns, pools, and channels in the region. Hydrological analysis provided a comprehensive understanding of water flow patterns. The findings suggested that the channels leading to cisterns followed a meandering slope and culminated in pools, possibly serving as sedimentation ponds. The study highlighted the benefits of utilizing UAV technology in archaeology and inferred that the water collection and storage system in the region was intentionally constructed by ancient civilizations.
ENVIRONMENTAL ARCHAEOLOGY
(2023)
Article
Chemistry, Physical
Mehmet Fatih Dilekoglu, Mazlum Yapici
Summary: The research investigated the performance of a new method for synthesizing super activated carbon from sheep manure in the adsorption of the naproxen micropollutant. Chemical activation with ZnCl2 as an activator was used to produce activated carbon, with various parameters such as impregnation rate, activation temperature, and duration examined. Characterization of the produced activated carbons was done using FTIR, SEM, and BET measurements, with a surface area of 2170 m2 g-1 determined. The adsorption of naproxen was found to be influenced by solution pH, initial concentration, and the amount of activated carbon.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Engineering, Civil
Muge Albayrak, Sebastien Guillaume, Daniel Willi, Christian Hirt, Ivan Dario Herrera Pinzon, Urs Marti, M. Tevfik Ozludemir, Lukas Mueller, C. K. Shum
Summary: This study presents the results of an astrogeodetic survey campaign conducted in the mountainous terrain of the Surses region in Switzerland. The observations using the QDaedalus system validated DoV data from the CHGeo2004 model and showed that it is more accurate than the GGMplus model. Furthermore, a comparison with previous studies conducted in coastal and flat terrains revealed that the GGMplus model performs better in the mountainous terrain.
JOURNAL OF SURVEYING ENGINEERING
(2023)
Article
Surgery
Harun Gur, Onur Ismi, Yusuf Vayisoglu, Kemal Gorur, Murat Unal, Onurhan Guven, Cengiz Ozcan
Summary: This study retrospectively analyzed the demographic, clinical, surgical, and histopathological results and complications of 301 parotidectomies performed in southern part of Turkey. The study found that patients with malignant tumors had a higher mean age compared to patients with benign diseases. The mean age of Warthin tumor (WT) patients was significantly higher than pleomorphic adenoma (PA) patients. There was a significant male dominancy in WT compared to PA. The mean size of malignant tumors was significantly larger than benign tumors.
INDIAN JOURNAL OF OTOLARYNGOLOGY AND HEAD & NECK SURGERY
(2023)
