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Jieying Liu and Zhigao Bi
Anaerobic digestion is a promising technology for treating and disposing of oily sludge, but the presence of oil in the sludge reduces methane production and sludge volume reduction. To overcome this limitation, this study creatively reports the use of m...
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Magdalena Strzebonska, Agnieszka Gruszecka-Kosowska and Anna Kostka
Urban rainwater samples, collected in various districts of Kraków during the period from the spring of 2019 to the winter of 2020, were investigated, and relevant risk implications were assessed. The contents of 31 components were determined, including: ...
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Saif-ur Rehman, Zia Farooq Khan, Tahir Maqbool
Pág. 161 - 166
Honey is a naturally sweet and viscous fluid produced by honeybees (Apis mellifera) from the nectar of flowers that, by definition, does not include any other substances. The objectives of this work were to characterize Pakistani honey, physically and ch...
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Tien Ngo, Leadin S. Khudur, Ibrahim Gbolahan Hakeem, Kalpit Shah, Aravind Surapaneni and Andrew S. Ball
In this study, the efficacy of biochar to mitigate ammonia stress and improve methane production is investigated. Chicken manure (CM) was subjected to high-solid mesophilic anaerobic digestion (15% total solid content) with wood biochar (BC). Wood biocha...
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Nwokem N Calvin,Gimba C. Emmanuel,Ndukwe G. Iloegbunam,Ella E. Elijah
Pág. 145 - 151
In an effort to improve methane gas production rate from cattle slurry; ethylene diamine- N, N-diacetic acid chelating ligand was introduced into the digester system. Experimental analysis involving the determination of trace metals, pH and methane gas y...
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Sthefany Leticia Aguilera-Chávez, Tzayhri Gallardo-Velázquez, Ofelia Gabriela Meza-Márquez and Guillermo Osorio-Revilla
The Mexican plum (Spondias purpurea L.) is a source of phenolic compounds; however, these compounds are susceptible to various factors (humidity, temperature, light, oxygen), as well as the digestion process, which can modify their bioaccessibility. This...
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Mbuyamba Divin Mukendi and Nomvano Mketo
Fluoride ions are the major constituents of dental products because they prevent cavities through bacterial growth inhibition. However, excessive consumption of fluoride ions results in fluorosis, thereby causing tooth staining and roughness. Therefore, ...
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Ismail M. Ahmed, Romany N. Ammanoeil, Ebtissam A. Saad, Jacqueline A. Daoud
Pág. 122 - 129
CYANEX 923 (a mixture of four trialkylphosphine oxides) in kerosene has been used for the extraction of phosphoric acid. Different parameters affecting the extraction of phosphoric acid such as shaking time, temperature, phase ratio O/A, extractant and p...
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Zongsheng Qiu, Qiyou Xu, Shenghao Li, Dakua Zheng, Rongfei Zhang, Jianhua Zhao and Ting Wang
In order to explore the effects of probiotics on the water quality, growth performance, nonspecific immunity, digestion, and intestinal flora of Macrobrachium rosenbergii in the biofloc culture system, three groups (six replicates in each group) were set...
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Lujie Shui, Xiaojie Pan, Xiaojuan Chen, Fengyi Chang, Duanji Wan, Defu Liu, Mingming Hu, Shanze Li and Yuchun Wang
In order to understand the spatial distribution and ecological risk of heavy metal pollution in the sediments of the Three Gorges Reservoir, surface sediment samples in six typical tributaries and estuaries were analyzed. The heavy metal content in sedim...
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Weiwei Zhai, Tianyue Qin, Ting Guo, Muhammad Imran Khan, Xianjin Tang and Jianming Xu
In this study, the raw wastewater (RW), and effluents from the acidogenic phase (AP) and methanogenic phase (MP) in a swine wastewater treatment plant were collected to investigate the occurrence and transformation of arsenic (As), as well as the abundan...
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Felippe Fernandes, Cristiano Poleto
Pág. 349 - 356
The Mãe d?Água dam was built in 1962 to supply the Federal University of Rio Grande do Sul?s water demanding. Thus, the paper aims to measure Nickel (Ni) and Zinc (Zn) concentrations in many depths of the dam?s bottom, sampling cores of sediments silted ...
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H. HANDT,R. FERNÁNDEZ,Z. BENZO,C. GOMÉZ,E. MARCANO,F. GALÁRRAGA,R. GONZÁLEZ
A sequential extraction approach has been applied to analyze Cd, Cr, Cu, Mn, Ni, Pb, V and Zn in dust samples from different schools chosen according with their location in areas with different concentrations of total suspended particles (TSP). The ai...
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Xiaofeng Jia, Hanxin Fan, Jiawei Liang, Jihua Dai, Yu Sun and Wenning Mai
The alcohol precipitation wastewater discharged from the production of Chinese patent medicine (CPM) has an extremely high chemical oxygen demand (COD) and poor biodegradability. In this study, the biological treatment method of anaerobic digestion coupl...
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Zafar Iqbal Khan, Rehan Haider, Kafeel Ahmad, Abdulwahed Fahad Alrefaei, Naunain Mehmood, Hafsa Memona, Shahzad Akhtar and Ilker Ugulu
This study aimed to assess the concentrations of Pb, Cr, Cd, and Ni in the edible parts of grapefruit and kinnow fruit irrigated with sewage water, tube-well water, and canal water. Preparation of the samples used in the study for metal analysis was carr...
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Zhenjia Qian, Jincheng Xu, Andong Liu, Jianjun Shan, Chenglin Zhang and Huang Liu
This study aimed to investigate the effects of different water velocities on the growth performance, blood physiology, and digestive capacity of coral trout (Plectropomus leopardus) in a Recirculating aquaculture system (RAS). One hundred and twenty heal...
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Mohamed Ali Rawash, Valéria Farkas, Nikoletta Such, Ákos Mezolaki, László Menyhárt, László Pál, Gábor Csitári and Károly Dublecz
Barley and oats can be alternatives of corn and wheat in poultry nutrition and used at higher inclusion rates. Both cereals contain hulls, a structural fiber source, that can be beneficial for the gizzard function of birds. They also contain high amounts...
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Shanmugam Sureshkumar, Junho Song, Vetriselvi Sampath and Inho Kim
Feed enzymes have been extensively used in livestock diets to enhance nutrient digestion and promote their growth performance. Indeed, recent research has indicated that feed enzymes, notably phytase, protease, and xylanase, function as catalysts, facili...
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Reynaldo J. Silva-Paz, Dante K. Mateo-Mendoza and Amparo Eccoña-Sota
In Peru, there are more than four thousand plants with medicinal properties, including muña, which helps digestion and improves health. The way to preserve these plants is drying up. The objective of this research was to investigate the coefficient of di...
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Pavlos Avramidis, Pantelis Barouchas, Thomas Dünwald, Ingmar Unkel and Dionisios Panagiotaras
In this study, soil and aquatic sediments were sampled in the Aetoliko Lagoon and its catchment area, which is exclusively dominated by olive orchards. For the first time in Greece, soil as well as sediments samples of one coherent protected aquatic ecos...
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