wastewater contains a variety of chemical substances owing to the different sources that contribute to affluent into sewage treatment plants. raw and wastewater samples were obtained from the surface of the water bodies at depths of 50 and 100 metres but at different locations in each sampling site. the water samples were subjected to extraction of polychlorinated biphenyls (pcbs) using quecher...

An improved radiation transmission and thermal efficiency model for solar ponds has been proposed based on both the Hull Model Wang/Seyed-Yagoobi in this paper. The new is more accurate to actual measured conditions because multiple reflections turbidity effects are included. Absorption penetration, conductivity loss under different Non-Convective Zone thicknesses numerically analyzed thoroughl...

Constructed wetland plays an important role in the removal of micro-polluted water pollutants urban sources. However, purification capacity and influencing factors constructed wetlands still need to be explored. This study monitored turbidity, ammonia nitrogen (NH3-N), dissolved oxygen (DO), chemical demand (COD) at inlet outlet Shijiuyang Wetland Jiaxing City from 2019 2021. The results showed...

Enterococci concentration variability at Escambron Beach, San Juan, Puerto Rico, was examined in the context of environmental conditions observed during 2005-2015. Satellite-derived sea surface temperature (SST), turbidity, direct normal irradiance, and dew point were combined with local precipitation, winds, and mean sea level (MSL) observations in a stepwise multiple regression analyses (Akai...

background and objectives: red colored fruits such as cornelian cherry (cornus mas l) are recognized as being healthy. the color of these fruits is an important sensory property in assessment of product quality therefore, minimizing the loss of color in the process is very important. materials and methods: in this study, comparison of the color, turbidity, degradation rate of anthocyanin, and r...

—Environmental factors such as turbidity and habitat complexity affect many aspects of aquatic food webs, including predator–prey interactions. We examined the effects of turbidity (0, 5, 10, 20, 40 nephelometric turbidity units [NTU]) and cover (presence or absence) on prey selection by adult smallmouth bass Micropterus dolomieu (mean 6 SD 1⁄4 290 6 41 mm total length) in laboratory pools. Ind...

introduction: colloidal materials and suspended solids cause turbidity in water. to remove turbidity, clarification method is used that includes processes of coagulation, flocculation, and sedimentation. due to the long duration of coagulation process, coagulant aids are applied. despite the favorable efficiency of synthetic polyelectrolytes as a coagulant aid, due to their harmful effects on h...