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Karolina M. Smiech, Aize Tolsma, Tímea Kovács, Vlade Dalbosco, Kamuran Yasadi, Leo Groendijk and Luewton L. F. Agostinho
Arsenic contamination of groundwater is a major public health concern worldwide. The problem has been reported mainly in southern Asia and, especially, in Bangladesh. Slow-sand filters (SSF) augmented with iron were proven to be a simple, low-cost and de...
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Karolina M. Smiech, Aize Tolsma, Tímea Kovács, Vlade Dalbosco, Kamuran Yasadi, Leo Groendijk and Luewton L. F. Agostinho
Arsenic contamination of groundwater is a major public health concern worldwide. The problem has been reported mainly in southern Asia and, especially, in Bangladesh. Slow-sand filters (SSF) augmented with iron were proven to be a simple, low-cost and de...
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Benjamin Torner, Duc Viet Duong and Frank-Hendrik Wurm
The correct computation of flows over rough surfaces in technical systems, such as in turbomachines, is a significant issue for proper simulations of their performance data. Once the flow over rough surfaces is adequately computed in these machines, simu...
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Han Kang, Yan Liu, Dan Li and Li Xu
This study used modified manganese sand as an adsorbent to explore its adsorption effect on iron and manganese ions from groundwater. The effects of pH, manganese sand dosage, and the initial concentration of Fe/Mn on the removal rate of iron and mangane...
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Octolia Togibasa, Satria Bijaksana and Gesti Cita Novala
Information about the strategic mineral balance, published in 2013, presumed a significant amount of iron sand deposited in Sarmi, Papua, Indonesia. However, the magnetic properties of these iron sands have never been studied. Our preliminary study on th...
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Valentine Tellen, George Nkeng and Steven Dentel
Intermittent bio-sand filtration (BSF) is a low-cost process for improving water quality in rural households. This study addresses its two drawbacks: flow limitations requiring excessive waiting, and inadequate purification when high flows are imposed. T...
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Andrew J. Erickson, John S. Gulliver, Peter T. Weiss
Pág. 1 - 17
Can iron enhanced sand filtration capture total phosphorus and soluble phosphorus (phosphate) from agricultural tile drainage? A monitoring study measured the total phosphorus and phosphate capture performance of an iron enhanced sand filter (IESF) insta...
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Andrew J. Erickson, John S. Gulliver and Peter T. Weiss
Can iron enhanced sand filtration capture total phosphorus and soluble phosphorus (phosphate) from agricultural tile drainage? A monitoring study measured the total phosphorus and phosphate capture performance of an iron enhanced sand filter (IESF) insta...
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Ezlina Othman, Mohd Suffian Yusoff, Hamidi Abdul Aziz, Mohd Nordin Adlan, Mohammed J. K. Bashir and Yung-Tse Hung
This study examines the suitability of natural silica sand as a low-cost adsorbent for the removal of ammoniacal nitrogen and heavy metals, particularly iron and zinc, from semi-aerobic stabilized landfill leachate. Leachate samples were collected from t...
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Soon Uk Yoon, Biswanath Mahanty and Chang Gyun Kim
The sorption?desorption of recalcitrant pharmaceuticals in sand/soil columns can be used to infer performance of managed aquifer recharge. Removal of carbamazepine (CBZ) and diatrizoate (DTZ) from synthetic wastewater, containing 100 µg·L-1 of each pharm...
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Soon Uk Yoon, Biswanath Mahanty, Chang Gyun Kim
Pág. 1 - 10
The sorption?desorption of recalcitrant pharmaceuticals in sand/soil columns can be used to infer performance of managed aquifer recharge. Removal of carbamazepine (CBZ) and diatrizoate (DTZ) from synthetic wastewater, containing 100 µg·L-1 of each pharm...
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Eugene Medvedovski, Gerardo Leal Mendoza and Giovanny Vargas
Downhole heavy oil production and oil sand processing are associated with severe damage and failures of production equipment components, e.g., production tubing and pumping systems, due to erosion-corrosion resulting in processing losses, production down...
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Leonardo De Bona Becker, Maria do Carmo Reis Cavalcanti and Alfredo Affonso Monteiro Marques
Tailings dam accidents emphasize the importance of an adequate understanding of the strength parameters of tailings to improve the efficiency and effectiveness of the design, construction, and operation of such structures. Usually, the tailings strength ...
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Desmond F. Lascelles and Ryan J. Lowe
Large blocks and boulders of banded iron formations and massive hematite up to 40 × 27 × 6 m3 and in excess of 10,000 metric tonnes were detached from an outcrop of the Wilgie Mia Formation during the ca 2.20 Ga marine transgression at the base of the Pa...
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Emeka Donald Anyanwu,Solomon Nnanna Umeham
Rivers are subjected to various kinds of natural and anthropogenic activities among which, indiscriminate and illegal sand mining is a major factor. The heavy metal content of a Nigerian river was studied between December 2017 and November 2018 in 6 stat...
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Zi-qi Cai, Xiang-yang Li, Bo Lei, Jing-fan Yuan, Chang-shou Hong and Hong Wang
It is the fact that there are lots of hazard incidents in underground uranium mines caused by radon but in-suit uranium samples were difficult to collect. Based on closed chamber method, three similar samples in different sealed ways were made in a labor...
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Zihao Ye, Dihao Xu, Jiawen Zhong, Shuang Gao, Jinjin Wang, Yulong Zhang, Huijuan Xu, Yongtao Li and Wenyan Li
The co-transport of contaminants by soil colloids can generate substantial environmental risk, and this behavior is greatly affected by environmental conditions. In this study, AF4-ICP-MS was used to investigate the size distribution and composition of C...
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Caterina Sgarlata, Maria Camila Ariza-Tarazona, Enrico Paradisi, Cristina Siligardi and Isabella Lancellotti
The aim of this research was to evaluate the possibility of reusing waste foundry sands derived from the production of cast iron as a secondary raw material for the production of building materials obtained both by high-temperature (ceramic tiles and bri...
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Naseem Akhtar, Muhammad Izzuddin Syakir, Saleh Ali Tweib, Muhammad Irman Khalif Ahmad Aminuddin, Mohamad Shaiful Md Yusuff, Abdullah H. Alsabhan, Faisal M. Alfaisal, Shamshad Alam and Jibran Qadri
Soil is a heterogeneous material, and its properties are vital from an agricultural perspective and for groundwater management. However, limited studies have been performed on the soil characteristics (soil texture, water-holding capacity, and soil compo...
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Israel Sosa, Pablo Tamayo, Jose A. Sainz-Aja, Ana Cimentada, Juan Antonio Polanco, Jesús Setién and Carlos Thomas
Obtaining new materials capable of meeting society?s demands motivates the search for new solutions that are capable of satisfying twofold requirements: respect for the environment and obtaining more durable and resistant materials. Cupola slag is a by-p...
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