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CNF - rGO nanocomposites have been successfully prepared by the two-steps methods. The CNF - rGO materials could be recovered readily from aqueous solution by magnetic separation. The equilibrium data were well fitted by the Langmuir adsorption isotherm model, and CNF - rGO exhibited high absorbability for U(VI). The maximum adsorption capacity ...
10 trang | Chia sẻ: honghp95 | Ngày: 02/12/2020 | Lượt xem: 511 | Lượt tải: 0
Dicanxi photphat khan cấu trúc monetit góp phần quan trọng trong việc hình thành cấu trúc của xương và răng. Hợp chất này có thể tái tạo những mô cứng do chúng có độ hòa tan cao, dễ được cơ thể hấp thụ hơn so với các hợp chất canxi photphat khác. Dicanxi photphat có thể được sử dụng làm thực phẩm chức năng cung cấp canxi và photphat cho con ngườ...
8 trang | Chia sẻ: honghp95 | Ngày: 02/12/2020 | Lượt xem: 505 | Lượt tải: 0
The present study focused on the promising of the rice husk as a zero–costly and available precursor for the fabrication of porous activated carbon for the purposes of wastewater treatment. The characteristic profiles admitted the highly porous, amorphous, various kinds of essential functional groups and defective structure of rice husk–derived ...
9 trang | Chia sẻ: honghp95 | Ngày: 02/12/2020 | Lượt xem: 543 | Lượt tải: 0
The study showed that the COD removal efficiency of ozone agents is not high at any pH value for the oxidation with ozone. Therefore it was required supporting factors to improve processing performance. This research selected the electrolysis process as the support for the process to minimize the use of chemicals to avoid affecting the biologica...
8 trang | Chia sẻ: honghp95 | Ngày: 02/12/2020 | Lượt xem: 453 | Lượt tải: 0
From the research results, it could be clearly clarified that the distributed metals of natural origin were: total iron, Al3+, As5+ and metals of artificial origin were: Cu2+, Pb2+ and Zn2+. It could be seen that the metal was distributed mainly in the mid - upper Pleistocene aquifer (qp2- 3) from 20 meters to over 40 meters in the range of stro...
7 trang | Chia sẻ: honghp95 | Ngày: 02/12/2020 | Lượt xem: 575 | Lượt tải: 0
The porous activated carbon fabricated from cheap and abundant tea waste source was found to be an effective adsorbent for removal of Ni2+ ions from aqueous solution. The RSM involving CCD was successfully applied to assess the influence of independent parameters, including Ni2+ initial concentration, pH and AC dosage on the removal of Ni2+ and ...
9 trang | Chia sẻ: honghp95 | Ngày: 02/12/2020 | Lượt xem: 497 | Lượt tải: 0
The water quality evaluation model was built based on the logic of fuzzy theory. Quality monitored data from a catchment area in a developing city has been applied for testing the results and compared to other regular method, Vietnam national water quality index. The results of the two methods show parallels and this in turn shows that fuzzy eva...
8 trang | Chia sẻ: honghp95 | Ngày: 02/12/2020 | Lượt xem: 496 | Lượt tải: 0
The emission factors were transferred into CO2 equivalents according to IPCC (2007). The overall CO2 emissions were in a range from 31 to 435 kg (Mg biowaste)-1. The CH4 emissions from AD plants were more important than the emissions from N2O and NH3 (Figure 5A). The emissions of CH4 accounted from 36 - 92 % while the emission of N2O and NH3 con...
8 trang | Chia sẻ: honghp95 | Ngày: 02/12/2020 | Lượt xem: 513 | Lượt tải: 0
In this study, the model of combined A2/O – BAF system was operated well and treatment efficiencies of nitrogen and phosphorus at four loading rates were very high. It was capable of achieving effluents with very low nitrogen and phosphorus concentrations from aquatic product processing wastewater. For a loading rate of 0.75 kgCOD/m3/day, treatm...
8 trang | Chia sẻ: honghp95 | Ngày: 02/12/2020 | Lượt xem: 413 | Lượt tải: 0
In summary, the novel catalyst is synthesized and characterized and it consists of clusters of Pt atoms dispersed on a Ti0.9Mo0.1O2 nanosupport. This catalyst showed extremely high activity for CO oxidation reaction. The chemical reactivity of our positively charged single Pt atoms. The more vacant orbitals of the cluster of Pt atoms, because of...
7 trang | Chia sẻ: honghp95 | Ngày: 02/12/2020 | Lượt xem: 713 | Lượt tải: 0
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