The technology can also clean water from high concentrated salt effectively (Nield, 2015, p.2). According to El-Shafi, as cited by Danise (2015, p.1), no electricity is needed if we use pervaporation. C. Disadvantages Despite the good advantages pervaporation provides, it contains some disadvantages. According to Nield (2015, p.2), there is a problem with pervporation and that is the production of water waste during the process. The membranes used in pervaporation might not be able to perform very effeciently (Nield, 2015, p.2).
In the next steps the density of water between 30-40 °C, 40-50 °C and 50-60 °C was measured. Then our results ρ vs T and also density vs temperature values given in the Steam Tables were plotted on the same graph in order to compare. In the second part the density of water was measured by density bottle. The densities obtained from the experiment are 995, 992.5, 991, 990 kg/m3 for the first part and
Lab 2 – Water Quality and Contamination Experiment 1: Effects of Groundwater Contamination Table 1: Water Observations (Smell, Color, Etc.) Beaker Observations 1 There was no smell 2 When I pour the oil in the water I noticed the oil started to bubble to the top. So I got to stir the oil that’s when there were smaller bubbles. As I smell the water there was no smell to the water. Putting the vinegar I didn’t smell anything but I did see the water was a change it was dark that’s when I added the vinegar 4 I added the detergent and it look like a cloud with bubbles.
Water potential is often represented by the Greek letter, psi ψ .The higher the rate of collisions of the water molecules with the membrane, the greater the pressure on it. This pressure is called water potential. Water always moves from higher water potential to lower water potential. The standard unit for water potential is kilopascals (kPa), which is also the unit pressure. Pure water is designated a water potential of zero which has the highest water potential under atmospheric pressure at 25°C.
It finally states that heat increases the evaporation of the water within the stomates which ultimately increases the rate at which water moves from root to leaves. This indicates that since heat was also induced onto the plant, the water potential of the atmosphere decreased causing the pansey’s leaves to have a much higher water potential than its surroundings, resulting in more water being lost through evaporation within the stomata. Ultimately, the both heat and light factors on the pansey caused it to have a much higher rate of transpiration that the other plants with only one factor. This supports the hypothesis which stated that when placed in an
Patients receiving sodium picosulphate reported significantly less nausea (P < 0.001), vomiting (P < 0.004), dizziness (P < 0.01), abdominal pains (P = 0.0005), and thirst (P < 0.0001) compared to sodium phosphate. Authors of the study opined that sodium picosulphate has similar efficacy but well-tolerated, better taste compared to sodium phosphate. (Schmidt
The different solvent gradient was fixed to contain both the physical and chemical properties of the pesticides. The advantage of using mass spectrometry is that there is an elimination of the component that interferes with the water sample thereby allowing a very accurate analysis. The base peak of the pesticides was observed using the graph. The m/z at 270,110, 83 and 70 were obtained at DE 10, 30, 60 and 70 respectively for Alachlor and the m/z at 229, 88, 124, 79 and 63 were obtained at DE 10, 20, 40, 70 and 80, respectively for malathion. From this we can see that the MS/MS recorded at different DE showed that the distribution pattern of base peak ions of various compounds depends upon used DE, in which some ions were used for confirmation and structure illustration and also some ion was used for quantification of compounds.
Data from in vitro study has demonstrated that relebactam /imipenem combination is synergistic and shows considerably reduced MIC in imipenem-resistant isolates of KPC-producing K.pneumoniae and Pseudomonas strain (81-83). In a study that was conducted to evaluate the efficacy of relebactam-imipenem combination, relebactam restored 97% susceptibility of imipenem against KPC-producer K.pneumoniae isolates(84). Although MBLs(IMP, NDM, VIM) are not susceptible to relebactam /imipenem, OXA-48 producing Enterobacteriacae are weakly affected by this combination(70, 85). Due to greater potency of imipenem relative to cephalosporins, relebactam /imipenem combination is a better choice than ceftazidime-avibactam and ceftaroline-avibactam
Tissue Papers Absorb Less Liquid in Volume When Concentration of Salt Increases This study was done in an effort to find out the minimum number of papers needed to wipe up a spill so that anyone could prevent wasting paper. In this investigation, sheets of tissue papers were dipped into salt water with different concentrations and soaked until the water traveled to the top, then the amount of water a paper absorbed in terms of both the mass and the volume was recorded. The result showed a strong, positive linear relationship between mass absorbed and salt concentrations, while it showed a slight decrease in volume absorbed with increasing salt concentrations. Further researches could be done to change the substances or even mix different solvents
We first measured the pH of the unfiltered and filtered water. Unfortunately, both pH’s were exactly the same, at 5.5. Thus, our filter had no effect on the pH of the water. We also tested the chlorine concentration of the water. This made sense because chlorinated pools often have high amounts of chlorine, which can also form HCl, an acid which would reduce the pH.