Renewable energy sources play a substantial role in producing electricity and heat single-family homes while becoming independent from external suppliers. This is primarily due to economic advantages, i.e., reducing costs. article aims compare two powered by photovoltaic systems and, additionally, pump. Both buildings were located near each other the same climate conditions (Swietokrzyskie Province, Poland). The analysis compared production for different module models with maximum power of...

The article deals with the problem of pool boiling heat transfer enhancement on metal wire mesh coatings made copper and phosphor bronze at nucleate distilled water high purity ethyl alcohol under ambient pressure. tests have been performed horizontal samples containing different microstructures produced sintering technology. were attached to heating block soldering. As a result experiments, curves obtained, describing relationship between dissipated flux superheat values for each specimen....

This work aims to evaluate the potential of raw lignite as a low-cost adsorbent material for removal phenoxy herbicides including phenoxyacetic acid (PAA), 4-chlorophenoxyacetic (4-CPA), 2,4-dichlorophenoxyacetic (2,4-D), and 4-chloro-2-methylphenoxyacetic (MCPA) from aqueous solutions.Batch adsorption experiments at different operating parameters such pH ionic strength were carried out, results revealed that was strongly pH-and dependent.The kinetics fitted with pseudo-first-order...

The aim of the study was to assess possibility using natural carbonaceous materials such as peat, lignite, and hard coal low-cost sorbents for removal Direct Orange 26 azo dye from an aqueous solution.The adsorption kinetics influence experimental conditions were investigated.The following used in research: 26, Spill-Sorb "Fison" peat (Alberta, Canada), lignite (Bełchatów, Poland), ("Zofiówka" mine, Poland).The morphology porous structure absorbents tested.Dye sorption carried out under...

Abstract The usefulness of untreated powdered eggshell as low-cost adsorbent for the removal pentachlorophenol (PCP) from aqueous solutions was investigated. most important parameters affecting adsorption process, including pH and ionic strength, were examined. characteristics PCP onto evaluated in terms kinetic equilibrium parameters. data studied pseudo-first order, pseudo-second order intra-particle diffusion models. analyzed using Langmuir, Freundlich, Sips Redlich-Peterson isotherm...

Three carbon materials with a highly diversified structure and at the same time much less different porosity were selected for study: single-walled nanotubes, heat-treated activated carbon, reduced graphene oxide. These used adsorption of 2,4-D herbicide from aqueous solutions in its electroanalytical determination. Both detection this type contamination removal water are important environmental issues. It is to identify which properties play significant role. The specific surface area major...

The paper discusses the issue of boiling heat transfer augmentation on phosphor bronze wire mesh coatings during nucleate for distilled water and ethyl alcohol under ambient pressure. A significant enhancement flux has been recorded such treated surfaces in comparison to smooth reference surface. obtained results have discussed compared with models correlations available literature.

The paper presents the problem of heat transfer enhancement with application multilayer metal mesh structures during boiling ethyl alcohol at ambient pressure. preparation samples involved sintering fine copper meshes base in reduction atmosphere order to prevent oxidation samples. experiments included testing up 4 layers meshes. Significant augmentation is possible, however, considerable number actually hinders conditions and leads flux transferred from heater surface.

Agricultural waste products including sunflower seed hulls, pumpkin shells, walnut shells and peanut were used as low-cost adsorbents for the removal of 2,4,6-trichlorophenol (TCP) from aqueous solutions.The effects adsorbent dosage, pH ionic strength on adsorption TCP investigated.The results showed that was dependent increased upon increasing solution.The kinetics found to follow a pseudo-second order kinetics.The equilibrium data fitted Langmuir, Freundlich Sips isotherms best achieved...

Abstract The study compares an annual number of weir overflows calculated using a hydrodynamic model by continuous simulations and probabilistic model. outflow for single precipitation event was successfully modelled logistic regression. Performed numerical experiments showed that the outflows with falls within confidence intervals This suggests regression can be used in practice. revealed description precipitations assumed average such events are not consistent. proposed methodology applied...

The sizing of the stormwater reservoir, as design its properties, usually requires simulations a basin runoff for long rainfall series using hydrodynamic model. In case insufficient observations, can be reproduced empirical approaches. One crucial elements in reservoir is determination duration time and intensity (design event), which maximum capacity being obtained. outcome is, however, affected by significant uncertainty modeling. aim study to analyze effect rainfall-runoff model on...

The degradation of 2,4-dichlorophenol (2,4-DCP) and 2,4-dichlorophenoxyacetic acid (2,4-D) by ammonium persulfate under various activation conditions was investigated. effect the initial oxidant concentration, pH, temperature, Fe2+ concentrations were studied. rate 2,4-DCP 2,4-D oxidation proportional to concentration persulfate. optimal pH for 9.0, while 2,4-D, it 3.0. temperature on kinetics examined, demonstrated that increasing from 25 50°C accelerated both contaminants. effects ratio...

The paper presents the results of studies on modeling and optimization organic pollutant removal from an aqueous solution in course simultaneous adsorption onto activated carbons with varied physical characteristics oxidation using H2O2. methodology for determining models used predicting sorption catalytic parameters process was presented. analysis influence as well oxidizer dose dynamics dyes-phenol red crystal violet-was carried out based designated empirical models. obtained confirm...

Assessing the Influence of Presence Heavy Metals Adsorbed on Activated Carbon Efficiency Degradation Phenol Using Selected Oxidizing Agents Removing organic substances from wastewater is a complex problem. Different methods are used for this purpose. Recently, much attention has been given to application sorption and advanced oxidation processes (AOPs), which contribute also regeneration activated carbon. The analysis presented in paper focused determining influence Cu(II) Fe(II) ions...

The degradation of 2-chlorophenol (2-CP) by persulfate was investigated.The kinetics oxidation in aqueous solutions at various pH, oxidant concentration, temperature, Fe 2+ and Cu ions content studied.Maximum 2-CP occurred pH 8.The rate increased with increasing the molar excess.The process significantly influenced temperature -the higher results a faster 2-CP.The activation ferrous copper also studied.Results showed that is activated more effectively iron(II) than copper(II) ions.A...

The adsorption of phenol (Ph), bisphenol A (BPA), 2,4-dichlorophenoxyacetic acid (2,4-D) and ibuprofen (IBU) from aqueous solutions on two raw bentonites was investigated.The strongly pH-dependent-the removal all the adsorbates decreased significantly with an increase in initial pH solution.The kinetics fitted pseudo-first-order, pseudo-second-order, Elovich, intra-particle diffusion models better represented by pseudo-second-order equation.The rate increased order: Ph < 2,4-D BPA IBU both...

The study presents the results of tests aimed at determining variations in concentrations polycyclic aromatic hydrocarbons and heavy metals (copper, cadmium, chromium, nickel, lead zinc) sediments from stormwater sewer system depending on period. were sampled four periods that altogether extended over hydrological year. They collected settler chamber treatment plant located 804.6 ha urbanised catchment. investigations show differences sediment grain size distribution. dust-clay fraction is...