Temat: water adsorption - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Studies on the Efficiency of Grundwater Treatment Process With Adsorption on Activated Alumina
Autorzy:: Szatyłowicz, E.
Skoczko, I.
Powiązania:: https://bibliotekanauki.pl/articles/123695.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: activated alumina
water treatment
adsorption
popular pollutants
Opis:: One of inorganic sorbents used in water treatment technology is activated alumina. It is recommended by the European Commission to remove inorganic impurities, such as arsenic, fluoride, selenium and silicates. The adsorbent is usually applied in a granular form, under flow conditions. It can become absorbent material, increasingly used due to the presence of arsenic beside iron and manganese in groundwater intakes. The aim of the study was to evaluate the effectiveness of groundwater treatment in the technological system containing adsorption on activated alumina. The experiment was performed on test model CE 581 manufactured by G.U.N.T. Hamburg, in which four treatment stages can be extracted. The first stage is used in a gravel filter of grain size 1–2 mm, in the second sand filter of grain size 0.4–0.8 mm. The third and fourth phase includes two adsorbers. The first adsorber comprises activated alumina (Al,sub>2O₃) and the other comprises a granular activated carbon. The study was conducted at different speeds of filtration: 5, 10 and 15 m/h. In the raw water samples and the purified water samples after each treatment step the following parameters were determined: pH, O,sub>2 concentration, electrolytic conductivity, SO₄^2-, concentration, NO^3- concentration, PO₄^3- concentration, Cl^- concentration, color, turbidity, iron and manganese concentration, CODMn, total hardness, calcium hardness, magnesium hardness, content of dissolved substances. The conducted research indicates that optimum filtration rate for most pollution is 15 m/h. Moreover, the presence of activated alumina has contributed to increasing the efficiency of nitrate (V) and phosphate (V) ions removal.
Źródło:: Journal of Ecological Engineering; 2017, 18, 4; 211-218
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Indonesias Natural Zeolite as an Adsorbent for Toxic Gases in Shrimp Ponds
Autorzy:: Anggoro, Didi Dwi
Sumantri, Indro
Buchori, Luqman
Powiązania:: https://bibliotekanauki.pl/articles/1838361.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: shrimp pond water
adsorption
zeolite
ammonia
hydrogen sulphide
Opis:: The objective of this research was to produce safe water for shrimp by using zeolite as adsorbent to absorb unwanted substances (NH3 and H2S). In particular, this study also aimed to design the shrimp pond water treatment equipment, effect of flow rate on zeolite ability to absorb toxic gases (NH3 and H2S), and rate of absorption (K) and reaction (k). The adsorbent is zeolite which has adsorption properties, high surface area and pores suitable for water (3Å). Then, the concentration of ammonia, hydrogen sulfide was analyzed using Ammonia Test Kit and Hydrogen Sulphide of Hach Hydrogen Sulfide Test Kit. The materials used in this study were zeolite of Malang (East Java, Indonesia) and shrimp pond water. The best result of NH3 and H2S adsorption obtained at a flow rate of 3 L•min-1. The best adsorption constant value (K) achieved by a flow rate of 3 L•min-1. On the basis of the best value of R2, NH3 and H2S adsorption, it can be classified in the first-order kinetic model with R2 of 0.9763 and a k value of 0.0007 hours-1 with a flow rate of 6 L•min-1. From the data above, it can be calculated that the adsorbent needed in the adsorption of NH3 and H2S in a scale shrimp pond requires 18 kg of Malang zeolite with a column height of 3.62 m of adsorbent, a diameter of 2.07 m, and a column volume of 12.21 m3.
Źródło:: Journal of Ecological Engineering; 2021, 22, 6; 202-208
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Indonesias Natural Zeolite as an Adsorbent for Toxic Gases in Shrimp Ponds
Autorzy:: Anggoro, Didi Dwi
Sumantri, Indro
Buchori, Luqman
Powiązania:: https://bibliotekanauki.pl/articles/1838278.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: shrimp pond water
adsorption
zeolite
ammonia
hydrogen sulphide
Opis:: The objective of this research was to produce safe water for shrimp by using zeolite as adsorbent to absorb unwanted substances (NH3 and H2S). In particular, this study also aimed to design the shrimp pond water treatment equipment, effect of flow rate on zeolite ability to absorb toxic gases (NH3 and H2S), and rate of absorption (K) and reaction (k). The adsorbent is zeolite which has adsorption properties, high surface area and pores suitable for water (3Å). Then, the concentration of ammonia, hydrogen sulfide was analyzed using Ammonia Test Kit and Hydrogen Sulphide of Hach Hydrogen Sulfide Test Kit. The materials used in this study were zeolite of Malang (East Java, Indonesia) and shrimp pond water. The best result of NH3 and H2S adsorption obtained at a flow rate of 3 L•min-1. The best adsorption constant value (K) achieved by a flow rate of 3 L•min-1. On the basis of the best value of R2, NH3 and H2S adsorption, it can be classified in the first-order kinetic model with R2 of 0.9763 and a k value of 0.0007 hours-1 with a flow rate of 6 L•min-1. From the data above, it can be calculated that the adsorbent needed in the adsorption of NH3 and H2S in a scale shrimp pond requires 18 kg of Malang zeolite with a column height of 3.62 m of adsorbent, a diameter of 2.07 m, and a column volume of 12.21 m3.
Źródło:: Journal of Ecological Engineering; 2021, 22, 6; 202-208
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: The Study of Adsorption Ability of Natural Materials of the Tyumen Region
Autorzy:: Pimneva, L.
Zagorskaya, A.
Powiązania:: https://bibliotekanauki.pl/articles/123127.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: natural sorbent
copper ions
adsorption isotherms
water supply system
drinking water quality
Opis:: The sorption of divalent copper, natural sorbents of kaolinite and montmorillonite clays and carbon sorbent was studied on model solutions under static conditions. Quantitative characteristics of sorption process of copper ions were obtained. The degree of extraction of copper ions from solution was investigated, depending on the concentration of the initial solution and the weight ratio of the sorbent and volume of treated solution. The magnitude of sorption increases along with the increase in the volume of copper sulfate solution with a concentration of 0.02 M at a constant sample of sorbents. A higher carbon sorption capacity of the sorbent, in relation to ions of copper, was compared to kaolinite and montmorillonite clay. A higher sorption capacity of the carbon sorbent with respect to copper ions is established in the comparison with kaolinite and montmorillonite clay.
Źródło:: Journal of Ecological Engineering; 2018, 19, 3; 225-228
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Orange Peels as a Sustainable Material for Treating Water Polluted with Antimony
Autorzy:: Hasan, Manar B.
Al-Tameemi, Israa M.
Abbas, Mohammed N.
Powiązania:: https://bibliotekanauki.pl/articles/1839075.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: antimony treatment
antimony adsorption
polluted water
orange peel
low-cost material
Opis:: Water pollution has increased due to human activities; consequently, it is essential to treat both surface water and ground water so they are suitable to meet the needs of the population. This study will discuss water treatment intended to remove antimony. Antimony (Sb) is classed as a high-priority toxic pollutant because of its adverse effects on ecosystems and human health. There are several methods for removing antimony from water, including adsorption, coagulation, ion exchange, and electrochemical treatment. This study focuses on the adsorption method as researchers have, in recent times, been seeking adsorbents that are environmentally friendly and cost-effective and that do not leave a residue. The study investigates the use of orange peels treated with acetic acid as an adsorbent to remove antimony ions from a simulated aqueous solution. The results revealed that 5 g of treated orange peels is 98.5% effective at treating water at a pH of 6, for a contact time of 150 minutes, at a mixing speed of 450 rpm.
Źródło:: Journal of Ecological Engineering; 2021, 22, 2; 25-35
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Comparative Study of Iron Removal from Groundwater Using Low Cost Adsorbents
Autorzy:: Raheem, Shahad A.
Kadhim, Entidhar Jawad
Abdulhasan, Maryam Jawad
Powiązania:: https://bibliotekanauki.pl/articles/2202201.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: groundwater contamination
iron removal
adsorption
filtration
drinking water
sawdust
barley husk
Opis:: Iron is one of the groundwater contaminants that negatively impact health and the environment. This study is attempted at introducing low cost natural adsorbent for that adsorbs iron from synthetically prepared iron water. Sawdust and barley husks were used as a filter media, either alone or at different mixing ratio of sawdust/barley husks (1:1, 0.5:1, 1:0.5), to study the effect of adsorbent dose on the removal efficiency. Synthetic water of iron was used at different initial concentrations (10, 25, 40, 65, and 80) mg/L to study the effect of initial iron concentration on the removal efficiency. The filtration process was conducted at a surface loading rate of 3 m3/m2.hr. The results showed higher removal efficiency with the increase of iron initial concentration. The results indicated that removal of iron ranged (90–99.34%) for all types of filter media. The best removal was found to be 99.34% at a mixing ratio of 0.5:1 (sawdust/barley husks) at 80 mg/L initial concentration. As a conclusion, Removal of iron was very successfully observed with absorbent materials sawdust and barley husk, which makes the treatment of iron even possible in rural areas and when high concentration of iron is present.
Źródło:: Journal of Ecological Engineering; 2022, 23, 11; 18--23
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Analiza ekonomiczna wybranych złóż adsorpcyjnych stosowanych do oczyszczania wody
Economic analysis of selected adsorption beds used for water treatment
Autorzy:: Skoczko, I.
Horysz, M.
Szatyłowicz, E.
Malinowski, Ł.
Powiązania:: https://bibliotekanauki.pl/articles/399843.pdf
Data publikacji:: 2016
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: złoża adsorpcyjne
oczyszczanie wody
koszty eksploatacji
adsorption deposits
water purification
operating costs
Opis:: W pracy przeprowadzono analizę ekonomiczna złóż sorpcyjnych stosowanych do oczyszczania wody. Wybrano takie masy węglowe jak: złoże Organosorb 10, złoże Norit ROW 0.8 Supra, złoże Hydroantracyt N oraz złoże K110. Ekonomicznego uzasadnienia doboru konkretnych złóż dokonano w oparciu o koszt zakupu złóż filtracyjnych, opłata środowiskowa za pobór wody, koszt urządzeń do napowietrzania wody, koszt odczynników chemicznych do regeneracji złóż, koszt pompy dozującej reagenty do regeneracji powstających podczas prowadzenia procesu adsorpcji z zastosowaniem każdego z wybranych do analizy złóż. Najtańsze w eksploatacji okazało się złoże K110, najdroższe zaś Norit ROW 0.8 Supra. Koszty eksploatacji złóż adsorpcyjnych zależy głównie od zakupu adsorbentu i prędkości adsorpcji. Ponadto znaczny udział w kosztach eksploatacji złóż węglowych ma opłata środowiskowa za pobór wody, mniejszy niż zakup samego złoża.
In the paper an economic analysis of the sorption deposits used for water purification was performed. Such masses of carbon as Organosorb 10 deposit, Norit ROW 0.8 Supra deposit, Hydroantracyt N deposit and K110 deposit were selected. The economic substantiation for the selection of specific deposits was based on the purchase cost of filter deposits, the environmental fee for water intake, the cost of equipment to aerate water, the cost of chemicals for deposits regeneration, the cost of the dosing pump reagents for regeneration generated during the process of adsorption using each of the deposits selected to the analysis. K110 deposit turned out to be the cheapest in the exploitation and Norit ROW 0.8 Supra was most expensive. The operating costs of the adsorption deposits depend mainly on the purchase of the adsorbent and the speed of adsorption. Moreover, environmental fee for water intake constitutes a significant share in the costs of exploitation of carbon deposits , which is greater than the deposit costs.
Źródło:: Inżynieria Ekologiczna; 2016, 46; 88-93
2081-139X
2392-0629
Pojawia się w:: Inżynieria Ekologiczna
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Removing Heavy Metals through Different Types of Soils and Marble Powder found in Oman
Autorzy:: Wazwaz, Aref
Al-Salaymeh, Ahmed
Khan, Mohd Shariq
Powiązania:: https://bibliotekanauki.pl/articles/124676.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: adsorption
potable water
silty soil
sandy soil
clay soil
marble powder
heavy metals removal
Opis:: In this research, adsorption followed by filtration was used for removing heavy metals (Cu, Zn, Mn, and Cr) from the polluted water. Three types of soils (silty, sandy and clay) and three types of marble powder (pure, impure, marble-granite mix) were used as an adsorbent. The soil and marble samples were collected from different regions of Oman. The maximum adsorption obtained was 96.01% for Zn using pure marble powder and the minimum adsorption obtained was 6.70% for Mn using impure marble powder. Through different soils, the maximum adsorption of 88.61% was achieved for Zn using clay and the lowest one is for Cr 16.51% using silty soil. The results suggest that among the marble powders, the pure ones show the maximum (96.01% for Zn) and marble-granite show the minimum (Mn 6.70%) adsorption performance. Among the adsorbents, Zn is the best adsorbate (96.01%) while the worst among the group is Mn, which merely adsorbed 6.70% with the selected adsorbents.
Źródło:: Journal of Ecological Engineering; 2019, 20, 4; 136-142
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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