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排序方式: 共有50条查询结果,搜索用时 156 毫秒
1.
Huy Tran Hong Phat Bui Dai Thi Cao Minh Van Viet Pham 《Environmental Chemistry Letters》2019,17(1):527-531
Environmental Chemistry Letters - Tin oxide nanoparticles (SnO2 NPs) with a diameter less than 10 nm are usually used in waste water treatment via the photocatalytic reaction. However,... 相似文献
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Veeriah Jegatheesan Nevelina Pachova Perlie Velasco Mohamed Ismail Mohammed Mowjood Sujithra Kaushaliya Weragoda Madhubhashini Makehelwala Ngo Thuy Diem Trang Bao-Trong Dang Cong-Sac Tran Thi-Kim-Quyen Vo Nguyen Thi Thu Trang Huy Pham Ma. Catriona Devanadera Antonina Torrens Xuan-Thanh Bui Phuoc-Dan Nguyen Amy Lecciones Kristhombu Baduge Shameen Nishantha Jinadasa 《环境质量管理》2023,32(3):335-365
Water quality is a critical challenge in Asia in the context of growing industrialization, urbanization, and climate change. Nature-based solutions (NbS) could play an important role in reducing urban water pollution, while generating multiple co-benefits that could make cities more liveable and resilient. In this regard, a number of pilot and demonstration projects have been set up to explore their potential across cities in Asia. Their effectiveness and impacts, however, have not been adequately documented, thus how they can be sustained, replicated and up-scaled remain poorly understood. This study aims to contribute to addressing this challenge by co-developing an integrated assessment framework and employing it to understand how existing evaluations of NbS in the region can be improved. It focuses specifically on a set of nature-based solutions that have been employed for water treatment across six cities in Southeast Asia (two in each Sri Lanka, the Philippines, and Vietnam), namely, floating wetlands, constructed wetlands and maturation ponds. The study also suggests specific methodologies for capturing a set of core indicators considered relevant for assessing the effectiveness and capturing the multi-faceted impacts of the examined NbS. 相似文献
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Effective adsorbent for arsenic removal: core/shell structural nano zero-valent iron/manganese oxide
Trung Huu Bui Choonsoo Kim Sung Pil Hong Jeyong Yoon 《Environmental science and pollution research international》2017,24(31):24235-24242
Recently, nano zero-valent iron (nZVI) has emerged as an effective adsorbent for the removal of arsenic from aqueous solutions. However, its use in various applications has suffered from reactivity loss resulting in a decreased efficiency. Thus, the aim of this study was to develop an effective arsenic adsorbent as a core/shell structural nZVI/manganese oxide (or nZVI/Mn oxide) to minimize the reactivity loss of the nZVI. As the major result, the arsenic adsorption capacities of the nZVI/Mn oxide for As(V) and As(III) were approximately two and three times higher than that of the nZVI, respectively. In addition, the As(V) removal efficiency of the nZVI/Mn oxide was maintained through 4 cycles of regeneration whereas that of the nZVI was decreased significantly. The enhanced reactivity and reusability of the nZVI/Mn oxide can be successfully explained by the synergistic interaction of the nZVI core and manganese oxide shell, in which the manganese oxides participate in oxidation reactions with corroded Fe2+ and subsequently retard the release of aqueous iron providing additional surface sites for arsenic adsorption. In summary, this study reports the successful fabrication of a core/shell nZVI/Mn oxide as an effective adsorbent for the removal of arsenic from aqueous solutions. 相似文献
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Dinh Hieu Vu Kuen-Sheng Wang Jung-Hsing Chen Bui Xuan Nam Bui Hoang Bac 《Waste management (New York, N.Y.)》2012,32(12):2306-2314
Along with the gradually increasing yield of the residues, appropriate management and treatment of the residues have become an urgent environmental protection problem. This work investigated the preparation of a glass–ceramic from a mixture of bottom ash and fly ash by petrurgic method. The nucleation and crystallization kinetics of the new glass–ceramic can be obtained by melting the mixture of 80% bottom ash and 20% fly ash at 950 °C, which was then cooled in the furnace for 1 h. Major minerals forming in the glass–ceramics mainly are gehlenite (Ca2Al2SiO7) & akermanite (Ca2MgSiO7) and wollastonite (CaSiO3). In addition, regarding chemical/mechanical properties, the chemical resistance showing durability, and the leaching concentration of heavy metals confirmed the possibility of engineering and construction applications of the most superior glass–ceramic product. Finally, petrurgic method of a mixture of bottom ash and fly ash at 950 °C represents a simple, inexpensive, and energy saving method compared with the conventional heat treatment. 相似文献
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Bui Long Ta Nguyen Phong Hoang Nguyen Duyen Chau My 《Environmental science and pollution research international》2022,29(28):41886-41908
Environmental Science and Pollution Research - Vietnam has been one of the nations strongly affected by climate change; hence, finding and promoting solutions in order to adapt and proactively... 相似文献
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Nguyen Xuan Cuong Nguyen Thi Thanh Huyen Bui Xuan-Thanh Tran Xuan Vu Tran Thi Cuc Phuong Hoang Nhung Thi Tuyet La Duc Duong Chang Soon Woong Ngo Huu Hao Nguyen Dinh Duc 《Environmental science and pollution research international》2021,28(45):63589-63598
Environmental Science and Pollution Research - The failure of the centralized water supply system forced XY community to become more dependent on uncertain and unstable water sources. The results... 相似文献
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The karyotype of cultured amniotic fluid cells obtained on the indication of advanced maternal age was shown to be a mosaic 45,X/46,X,r(?). The small size and banding pattern made it difficult to determine whether the ring was derived from and X or a Y chromosome, or even from an autosome. By using an X-centromeric probe and fluorescence in situ hybridization (FISH), we demonstrated the ring to have an X centromere. Thus, a more complete genetic counselling was possible. This confirms the usefulness of FISH in identifying and characterizing this and other chromosome rearrangements in prenatal diagnosis. 相似文献