The origins of atmospheric sulfate production have previously been explained by focusing on air quality models and complex chemical reaction processes. Here, we first report direct observations in stack plumes discharged from coal-fired power plants, industrial boilers, sintering plants equipped with wet desulfurization systems. Less than one third the particulate SO42? is attributed to dust-SO...

Abstract Mineral weathering plays a primary role in the geologic carbon cycle. Silicate by carbonic acid consumes CO2 and stabilizes Earth's climate system. However, when sulfuric drives weathering, can be released to atmosphere. Recent work has established that resulting from sulfide mineral oxidation is globally significant particularly important rapidly eroding environments. In contrast, if ...

In this study, the treatment of acid mine drainage (AMD) and immobilization heavy metals released from CFT (copper flotation tailings) were investigated using strongly alkaline demolition waste (DW), collected urban renewal areas. Shake flask batch tests conducted to assess influence time different ratios CFT/DW on acidity metal release characteristics water. During tests, samples filtered leac...

Buriganga, an economically important river located around the industrialized urban area of Dhaka city, Bangladesh. In this study, 17 water quality parameters (EC, pH, TSS, temperature, F-, Cl-, SO42-, Cr,...

Mineralization of a fluorotelomer surfactant containing C6F13 end-group (FSC), in hot and superheated water was studied. The process optimized by variation parameters such as temperature the presence or absence O2, Ar, KMnO4 K2S2O8. Treatment FSC with combination O2 efficiently decomposed to F?, SO42?, CO2. Specifically, when aqueous (34.8 ?mol) (0.50 mmol) were reacted at 350 °C for 18 h under...

A detailed hydrogeochemical study was performed in the Wiśniówka mining area (south-central Poland). This covered three acid pit bodies, historic tailings acid ponds, acid pools, and additionally two neighboring rivers. All these acid mine drainage (AMD) waters are characterized by the pH in the range of 1.7 (pools) to 3.5 (tailings ponds). The most interesting is the Podwiśniówka acid pit lake...