Water environment

The Free Water Surface wetland (FWS) has emerged as a promising technological solution for wastewater treatment in natural environments. The study aimed at investigating the performance of a laboratory-scale Free Water Surface wetland (FWS) unit designed to treat domestic wastewater with a daily capacity of 20 liters.

9p vibecca 01-10-2024 4 1   Download

This paper presents the results of water quality assessment of clam farming areas for 3 monitoring points in Tien Hai district, Thai Binh province. From the results of the assessment, this study suggests management measures, including improving water quality index used to zoning water quality, thus better managing clam areas; and technical measure which improves farming techniques to protect the aquatic environment of farmers.

11p vibecca 01-10-2024 4 1   Download

This paper presents the applying of sound barrier wall for highways in Viet Nam studied from existing experiments in the world. Nowadays, pollution sources come from traffic noises, water sources and air environment. Especially, traffic noises such as transportations, trains and airplanes are much serious and effect population and country. On road traffic systems, noise generated by vehicles is always in high level and give discomfort to residents who live around both sides of highways.

7p vibecca 01-10-2024 1 1   Download

This study investigates the impact of climate change (CC) on water resources in Phu Yen province, Vietnam by assessing historical trends of temperature, rainfall and flood simulation scenarios from a report of Vietnam of the Ministry of Natural Resources and Environment in 2020.

14p viyoko 01-10-2024 1 0   Download

Impervious surface is an artificial surface that prevents water from seeping into the ground. Impervious surface is not only an indicator of the level of urbanization but also a key indicator of the quality of the urban environment. This article presents the results of an impervious surface classification in Ho Chi Minh City area from multi-temporal Landsat image data.

13p viyoko 01-10-2024 3 1   Download

In this study, adsorptive removal of an antibiotic oxytetracycline (OTC) using polyanion poly(2-acrylamide-2-methylpropane sulfonic acid), PAMPs modified α-Al2O3 nanoparticles (PAMNA) was investigated.

5p vikwong 29-09-2024 1 1   Download

Oil spills pose significant challenges to the environment, wildlife, and local economies, thus an effective method for cleaning up an oil spill is urgent. Here, superhydrophobic ZnO powder particles were synthesized using a simple and efficient method and investigated their coating on polyurethane sponge for oil/water separation application.

6p vikwong 29-09-2024 2 1   Download

In the present study, an anionic surfactant, sodium dodecyl sulfate (SDS) was used to modify aluminum hydroxide nanoparticles to form a novel adsorbent (SMAH) for removal of an organochloride pesticide, Dichlorodiphenyltrichloroethane (DDT) in water environment.

5p vikwong 29-09-2024 4 1   Download

Amoxicillin (AMX) is a highly antibiotic resistance so that many studies focus on the removal of AMX in water environment. The present study investigated adsorptive removal of beta-lactam antibiotic AMX using a cationic surfactant, cetyltrimethylamonium bromide (CTAB) modified nanosilica (CMNS).

5p vikwong 29-09-2024 3 1   Download

Unsaturated polyester resin (UPR) condensate water contains biodegradable organic compounds, including those that create unpleasant odor. Those odors can adversely impact the environment, human health, and, most of all, the uncomfortably.

7p vikwong 29-09-2024 3 1   Download

Microplastics present in high density in coastal marine environments have been reported by many published works worldwide. Microplastic presence poses a major threat to all organisms that come into direct contact with them in the aquatic environment because they are non-biodegradable and adsorbable to some toxic substances.

8p vikwong 29-09-2024 2 1   Download

The present study investigated the photodegradation of 2,4- Dichlorophenoxyacetic acid (2,4-D) in a water environment using synthesized titania nanoparticles (TiO2-NPs). The TiO2-NPs fabricated by sol-gel method were distinguished by X-ray diffraction (XRD) and Transmission electron microscopy (TEM), Infrared spectroscopy (IR), and zeta potential measurements.

5p vikwong 29-09-2024 2 1   Download

This research focused on surveying the decomposition efficiency of methyl orange, alizarin yellow and mordant black -T in the systems without and with UV light in water: alone zero-valent iron; alone persulfate; both zero-valent iron and persulfate.

6p vikwong 29-09-2024 1 1   Download

This study reviewed the latest information on the presence of PMMoV and human enteric viruses in water environments and in wastewater (water) treatment systems to evaluate the suitability of PMMoV as an indicator virus for water safety and quality.

13p vifaye 20-09-2024 3 1   Download

Vietnam experiences increasing droughts throughout the dry season due to climate change, global warming, and human-caused activities like urbanization and deforestation. Drought hazard significantly impacts socioeconomic, agriculture, and the environment; it directly threatens human lives, livelihoods, food security, and environmental degradation.

13p vifaye 20-09-2024 4 1   Download

Wastes generated from healthcare practices are a serious problem for humans as well as for the environment. In this study, an attempt was made to use mixed solid medical waste (WPN) which consisted of shredded waste plastic and chopped waste needles for partial replacement of natural fine aggregate (sand) in concrete mixes at 0%, 2%, 4%, 6%, 8% and 10% by weight.

13p vifaye 20-09-2024 2 1   Download

Giáo trình "Cơ sở các quá trình lý hóa sinh trong kỹ thuật nước – môi trường nước (Fundamentals of Physical, Chemical and Biological processes in Water engineering and Water Environment)" được biên soạn theo mục tiêu đào tạo đại học chuyên ngành Kỹ thuật nước - Môi trường nước (ngành Kỹ thuật cấp thoát nước) có được các cử nhân và kỹ sư với các kiến thức chuyên môn sâu, kỹ năng dẫn dắt, lãnh đạo, khả năng sáng tạo,... Sách được chia thành 2 phần, mời các bạn cùng tham khảo phần 1 cuốn sách.

100p dianmotminh07 12-08-2024 5 2   Download

Nối tiếp nội dung phần 1, phần 2 cuốn giáo trình "Cơ sở các quá trình lý hóa sinh trong kỹ thuật nước – môi trường nước (Fundamentals of Physical, Chemical and Biological processes in Water engineering and Water Environment)" cung cấp cho người học các nội dung: Các quá trình tách pha, các quá trình sinh học trong xử lý và khử trùng nước, các bài thí nghiệm và thực hành.

160p dianmotminh07 12-08-2024 6 2   Download

This paper captures the persistently changing dimensions and new paradigms of water security providing a holistic view including a wide range of sustainable solutions to address the water challenges.

21p hoanglongjp 14-07-2023 10 5   Download

In this study, the combination of Fe(III) and Ni(II), Cu(II), or Mn(II) metal salts bound to organic bridges were synthesized based on thermal method solvent in the presence of DMF. The structural properties of the materials were analyzed based on modern physicochemical methods (XRD, FT-IR, SEM, and BET).

8p vidoctorstrange 06-05-2023 9 3   Download