Contamination of water resources by industrial effluents containing heavy metal ions and management solid waste from agricultural food industries is a serious issue. This study presents the valorization walnut shells as an effective environment-friendly biosorbent for sequestrating Cr(VI) aqueous media. The native shell powder (NWP) was chemically modified with alkali (AWP) citric acid (CWP) to obtain biosorbents abundant availability pores active centers, confirmed BET analysis. During...

This study examined the use of modified multiwall carbon nanotubes (M-MWCNTs) with immobilized laccase (L@M-MWCNTs) for removing ciprofloxacin (Cip), carbamazepine (Cbz), diclofenac (Dcf), benzo[a]pyrene (Bap), and anthracene (Ant) from different water samples. The synthesized materials were characterized using an array advanced analytical techniques. physical immobilization onto M-MWCNTs was confirmed through Scanning electron microscope (SEM)-dispersive X-ray spectroscopy (EDS) analysis...

Pozzolans such as fly ash (FA) and nano-metakaolin (MK) are the two industrial wastes that have attracted attention of researchers due to their pozzolanic action improves performance cementitious materials in an aggressive environment can reduce global cement demand lessen emission greenhouse gases. This study analyses strength durability properties mortar with partial substitution MK presence FA. The effect binary ternary blends on has been studied by varying dosage FA (5-20%) well...

Abstract River dynamics and sediment transport play an important role in river bed morphology. Building a bridge pier along the alters cross‐section of causes change flow processes. These changes are mainly responsible for scour. In this paper, usage collars to reduce scour around circular piers has been investigated. The with different diameters depth positions have studied using previous data additional collected present study assess their effectiveness reducing Using wide range measured...

Indoor air quality has a direct impact on human health. Thus, it's essential to comprehend the various aspects of indoor quality. It supports both implementation preventative measures and monitoring pollution. Monitoring forecasting pollution is extremely essential, especially in developing countries like India. This study proposes system that employs ESP8266 (NodeMCU) data sent cloud monitor levels pollutants such as ozone, particle matter, carbon monoxide, dioxide, temperature, total...

During flooding, the suspended sediment transport usually experiences a wide-range of dilute to hyper-concentrated depending on local flow and ground conditions. This paper assesses distribution for variety flows. Due differences between flows, linear-power coupled model is proposed integrate these considerations. A parameterised method combining size, Rouse number, mean concentration, depth parameters has been used modelling profile. The accuracy verified against reported laboratory...

In the present study, biosynthesized silica-based zinc oxide nanocomposites (nano-SZO) have been explored as nanoadsorbent for sequestrating heavy metal ions viz. Ni2+, Cd2+and Cu2+ from synthetic medium. The obtained by utilization of agricultural waste means green approach with an average particle size 30.52 nm and a pH at zero-point charge 4.8. process has optimized equal to 5.0 Ni2+ 6.0 Cd2+. Adsorption was best described Langmuir isotherm highest value maximum adsorption capacity, qm...

This study focuses on the application of multi-sensor satellite archived data products and ancillary for evaluation drought vulnerability. The use a subjective model, namely Analytical Hierarchy Process (AHP) integrated with Geographical Information System (GIS) various influencing parameters, emerged as powerful tool gauged ungauged watershed. Kangsabati river basin, located in southern part West Bengal (India), is facing issues overexploitation groundwater, climate variation, unsystematic...

This paper reviews existing studies relating to the assessment of sediment concentration profiles within various flow conditions due their importance in representing pollutant propagation. The effects particle size, depth, and velocity were considered, as well eddy viscosity Rouse number influence on drag particle. It is also widely considered that there a minimum threshold required increase above washload. bursting effect has been investigated this review, which it presents mechanism for be...

Presented in this paper is an experimental study on scour downstream of rough and smooth stiff aprons under the influence wall jets. The effect various parameters asymptotic depth studied. analysis data reveals that maximum reduces with increasing sediment size, sluice opening, apron length. It directly proportional to densimetric Froude number. Maximum equilibrium initially decreases tailwater level (up a minimum), but thereafter increase observed. roughness studied quantification decline...

The study utilizes a dataset with seven critical constraints and creates models that are estimated based on various metrics. goal is to categorize properly predict the water quality index (WQI) using suggested models. outcomes show implied can accurately assess forecast WQI high rates of success. Temperature, pH, dissolved oxygen (DO), conductivity, total solids (TDS), turbidity, chlorides (Cl-) some six crucial factors used in study’s dataset. mean absolute error (MAE), squared (MSE),...

Biomass fuels are a promising renewable energy source for both heat and electricity generation. When weighing the economics of biomass energy, higher heating value (HHV) is significant factor to consider. To estimate HHVs, full understanding chemical constituents required, which can be costly time-consuming find experimentally. solve this issue, study applies three modern robust machine learning algorithms XGBoost, Random Forest (RF), Adaptive Boosting (AdaBoost), predict HHVs reliably based...

Over three years, a comparative study on 100 selected patients with fever of unknown origin was undertaken to determine the yield Salmonella typhi from their blood and bone marrow cultures. The results indicate that in who had an infection S organism isolated all them only 66%. This suggests cultures may be attempted when are negative for bacterial growth after four days incubation.

Abstract This paper deals with generalized scour estimation to investigate maximum depth at equilibrium condition using experimental data obtained from experiments conducted by the authors along of previous researchers. Three hundred were used derive clear water relationship around circular a bridge pier genetic algorithm (GA) and multiple linear regression (MLR) techniques. The GA-based showed more precise results than MLR. In addition, present GA MLR relationships compared some equations...

The many hydrodynamic implications associated with the geomorphological evolution of braided rivers are still not profoundly examined in both experimental and numerical analyses, due to generation three-dimensional turbulence structures around sediment bars. In this research, 3D velocity fields were measured through an acoustic Doppler velocimeter during flume-scale laboratory runs over emerging sand bar model, reproduce conditions real rivers, Turbulent Kinetic Energy (TKE) components...

Abstract A continuous mode fixed-bed up-flow column adsorption analysis was conducted utilizing Acacia nilotica sawdust activated carbon (ASAC) as an adsorbent for the treatment of toxic Indigo Carmine Dye (ICD). The effect on characteristics ASAC influent ICD concentration, flow rate, and bed depth has been investigated. According to study, highest efficiency removal approximately 79.01% at a preliminary concentration 100 mg/L with rate 250 mL/h 30 cm power 24.67 mg/g. experimental work...

Scour is the main cause of failure for spur dike. The accurate prediction scour around dike essential to design a present study focuses on maximum depth in equilibrium condition and parameters, which influence it sand–gravel mixture bed. Outcomes experimental showed that non-dimensional increases with critical velocity ratio (U/Uca), water depth-armour particle (h/da), Froude number sediment (Frsm), depth-spur length (h/l), decreases increase armour particle-spur (da/l). proportional...

The shortage of natural aggregates has compelled the developers to devote their efforts finding alternative aggregates. On other hand, demolition waste from old constructions creates huge land acquisition problems and environmental pollution. Both these can be solved by recycling materials. current study aims use recycled brick (RBA) develop eco-friendly pervious concrete (PC) investigate new concrete’s structural performance pore structure distributions. Through laboratory testing image...