The biodegradation characteristics of dimethyl phthalate (DMP) by three freshwater unicellular organisms were investigated in this study. The findings revealed that all the organisms were capable of metabolizing DMP; among them, Cyanothece sp. PCC7822 achieved the highest degradation efficiency. Lower concentration of DMP supported the growth of the Cyanobacteria; however, with the increase of ...

Worldwide, anthropogenic contaminants emerge and enter into aquatic systems; their ubiquity in aquatic systems poses serious threats to both human health and ecological systems. As the demand for water continues to grow with population, treatment of wastewater and remediation of polluted aquatic systems are of critical concern. Ozonation and advanced oxidation processes (AOPs) are promising met...

The equilibrium partitioning (EqP) method has been applied to establish sediment quality criteria (SQC); however, it does not consider the nonlinear irreversible sorption of many organic contaminants. In this research, the sorption and desorption of two phthalate esters (PAEs), dimethyl phthalate (DMP) and di(2-ethylhexyl) phthalate (DEHP), in four natural sediments collected from the Yangtze R...

A novel electro-Fenton (E-Fenton) process was developed, in which the desired pH for an effective E-Fenton reaction and for a neutral treated media could be obtained by utilizing the reaction-released H+ and OH- in stead of chemical addition. In the laboratory-scale process using three chambers, the substrate solution pH > 4.0 was designed to be adjusted in situ through three sequencing steps: ...

Over 99% of dimethyl phthalate (DMP) and 93% of chemical oxygen demand (COD) were effectively removed in a continuous upflow anaerobic sludge blanket (UASB) reactor from a wastewater containing 600 mg/L DMP at 8h of hydraulic retention time (HRT), corresponding to a loading rate of 3g-COD/(Ld). Each gram of sludge, expressed as volatile suspended solids (VSS), had a maximum specific methanogeni...

Eight commercial repellents were tested against Aedes aegypti 0 and 4 h after application in serial dilution to volunteers and laboratory mice. Results were analyzed by multiple regression of percentage of biting (probit scale) on dose (logarithmic scale) and time. Empirical correction terms for conversion of values obtained in tests on mice to values expected in tests on human volunteers were ...

Phthalates are endocrine disruptors, reported to cause deformities and reproductive damages in animals. Numerous studies the presence of phthalates water samples rivers, wetlands, estuaries, while scenario case ponds is different, however they as an integral part biosphere. In this study, level phthalates’ contamination collected from different Amritsar district for four consecutive seasons two...

A structural analysis of phytochemical constituents present in the ethanolic extract Mangifera indica fresh leaves were investigated to assert presence bioactive compounds corresponding reported antioxidant, antibacterial, antihyperglycemic, antidiabetic and anthelmintics properties plant. Extraction was carried out on homogenised using conventional soxhlet apparatus, with ethanol chosen select...

Concentration of phthalates in the environment has been steadily increasing due to their high utilization rate and inability conventional wastewater water treatment remove them. Electrochemical oxidation at Boron doped diamond (BDD) was effective for phthalate degradation but costly unaffordable many situations. Hence, we carried out electrochemical Diethyl Phthalate (DEP) two dimensional graph...