Uranium is a very toxic and radioactive element. Removal of uranium from wastewaters requires remediation technologies. Actual methods are costly and ineffective when uranium concentration is very low. Little is known about the enhancement of sorption of uranyl ions by phosphate ions on aluminosilicates. Here, we studied sorption of uranyl acetate on red clay in the presence of phosphates. The ...

Nghiên cứu chất lượng môi trường nước nuôi tôm càng xanh (Macrobrachium rosenbergii) thâm canh ở huyện Cao Lãnh, tỉnh Đồng Tháp được thực hiện 3 ao với vị trí thu mẫu chính là cấp, trong và thải, chu kỳ 1 lần/tháng 4 tháng. Kết quả cho thấy cấp thích hợp sinh trưởng của tôm. Chỉ tiêu EC, TDS thải đều có khuynh hướng tăng, khi hàm DO lại giảm so đầu vào nhất tháng 4. Nước nồng độ đạm vô cơ lân đ...

This study was conducted to analyze water quality in a coastal province of Vietnam. Multivariate statistical methods, namely cluster analysis (CA) and principal component (PCA) were utilized. Twelve parameters, pH, dissolved oxygen (DO), total suspended solids (TSS), biological demand (BOD), chemical (COD), nitrite (N-NO2−), nitrate (N-NO3−), ammonium (N-NH4+), orthophosphate (P-PO43−), chlorid...

Zn-Al layered double hydroxide (LDH) nanoparticles with carbonate as the charge balancing anion in the interlayer space were synthesized using co-precipitation method. Then, the carbonate base Zn-Al LDH nanoparticles were doped with phosphate ion via anion-exchange reaction to synthesize Zn-Al-[PO43-]-[CO32-]. The structure and composition were characterized by X-ray diffraction (XRD), Fourier ...

Waste building sludge (WBS) originating in the production of concrete prestressed poles (CSW) and technical stone (TSW) used original Fe-modified forms (CSWFe, TSWFe) was tested as an environmentally friendly cheap sorbent selected cations (Cd2+, Pb2+, Cs+) anions (AsO43?, PO43?, CrO42?) from water. The experiments were performed with 0.1 0.5 mmol·L?1 model solutions a batch manner at laborator...

Nutrient availability plays a crucial role in microalgae growth domestic wastewater. In this study, we investigated the impact of different nitrogen and phosphorus ratios (5:1, 10:1, 20:1, m∙m−1), addition inorganic carbon on nutrient uptake from Microalgae biomass achieved values ranging 0.54 to 1.41 g·L−1. The cultivation process had maximum removal efficiencies 83.7% for soluble chemical oxy...